China Shenzhen Wofly Technology Co., Ltd. Company News

In semiconductor fabrication, gases do all the work and lasers get all the attention. While lasers do etch transistor patterns into silicon, the etch that first deposits the silicon and breaks down the laser to make complete circuits is a series of gases. It is not surprising that these gases, which are used to develop microprocessors through a multi-stage process, are of high purity. In addition to this limitation, many of them have other concerns and limitations. Some of the gases are cryogenic, others are corrosive, and still others are highly toxic. All in all, these limitations make manufacturing gas distribution systems for the semiconductor industry a considerable challenge. Material specifications are demanding. In addition to material specifications, a gas distribution array is a complex electromechanical array of interconnected systems. The environments in which they are assembled are complex and overlapping. Final fabrication takes place on site as part of the installation process. Orbital soldering helps meet the high specifications of gas distribution requirements while making manufacturing in tight, challenging environments more manageable.   How the semiconductor industry uses gases Before attempting to plan the manufacture of a gas distribution system, it is necessary to understand at least the basics of semiconductor manufacturing. At its core, semiconductors use gases to deposit near-elemental solids on a surface in a highly controlled manner. These deposited solids are then modified by introducing additional gases, lasers, chemical etchants, and heat. The steps in the broad process are: Deposition: This is the process of creating the initial silicon wafer. Silicon precursor gases are pumped into a vacuum deposition chamber and form thin silicon wafers through chemical or physical interactions. Photolithography: The photo section refers to lasers. In the higher extreme ultraviolet lithography (EUV) spectrum used to make the highest specification chips, a carbon dioxide laser is used to etch the microprocessor circuitry into the wafer. Etching: During the etching process, halogen-carbon gas is pumped into the chamber to activate and dissolve selected materials in the silicon substrate. This process effectively engraves the laser-printed circuitry onto the substrate. Doping: This is an additional step that changes the conductivity of the etched surface to determine the exact conditions under which the semiconductor conducts. Annealing: In this process, reactions between wafer layers are triggered by elevated pressure and temperature. Essentially, it finalizes the results of the previous process and creates the finalized processor in the wafer. Chamber and Line Cleaning: The gases used in the previous steps, especially etching and doping, are often highly toxic and reactive. Therefore, the process chamber and the gas lines feeding it need to be filled with neutralizing gases to reduce or eliminate harmful reactions, and then filled with inert gases to prevent the intrusion of any contaminating gases from the outside environment. Gas distribution systems in the semiconductor industry are often complex because of the many different gases involved and the tight control of gas flow, temperature and pressure that must be maintained over time. This is further complicated by the ultra-high purity required for each gas in the process. The gases used in the previous step must be flushed out of the lines and chambers or otherwise neutralized before the next step of the process can begin. This means that there are a large number of specialized lines, interfaces between the welded tube system and the hoses, interfaces between the hoses and tubes and the gas regulators and sensors, and interfaces between all of the previously mentioned components and the valves and sealing systems designed to prevent pipeline contamination of the natural gas supply from being swapped out. In addition, cleanroom exteriors and specialty gases will be equipped with bulk gas supply systems in cleanroom environments and specialized confined areas to mitigate any hazards in the event of accidental leakage. Welding these gas systems in such a complex environment is no easy task. However, with care, attention to detail and the right equipment, this task can be accomplished successfully.   Manufacturing gas distribution systems in the semiconductor industry The materials used in semiconductor gas distribution systems are highly variable. They can include things like PTFE-lined metal pipes and hoses to resist highly corrosive gases. The most common material used for general purpose piping in the semiconductor industry is 316L stainless steel - a low carbon stainless steel variant. When it comes to 316L versus 316, 316L is more resistant to intergranular corrosion. This is an important consideration when dealing with a range of highly reactive and potentially volatile gases that can corrode carbon. Welding 316L stainless steel releases less carbon precipitates. It also reduces the potential for grain boundary erosion, which can lead to pitting corrosion in welds and heat affected zones. To reduce the possibility of piping corrosion leading to product line corrosion and contamination, 316L stainless steel welded with pure argon shielding gas and tungsten gas shielded weld rails is the standard in the semiconductor industry. The only welding process that provides the control needed to maintain a high purity environment in process piping. Automated orbital welding is only available in semiconductor gas distribution

Due to its inert nature, gaseous nitrogen can be used in a variety of purging, covering and flushing operations. Depending on the type of process involved, different levels of nitrogen purity are required to meet unique manufacturing needs.   What is Nitrogen Purity?   Nitrogen purity is the percentage of nitrogen present in a sample taken from its stream compared to the impurities present. Nitrogen can be classified as high or low purity based on the ratio of pure gas to contaminants such as oxygen, water vapor, carbon monoxide and carbon dioxide.   This classification based on nitrogen concentration plays a key role in determining the suitability of nitrogen for any industrial process.   High Purity vs. Low Purity Nitrogen   The purity of a nitrogen sample is determined by the percentage/concentration of pure nitrogen in it. For a gas to be categorized as high purity, it must contain at least 99.998% nitrogen, whereas lower purity nitrogen typically contains a higher percentage of impurities. High Purity Nitrogen   Gaseous nitrogen with a concentration above 99.998% is considered a high purity fraction. High purity nitrogen can be graded in different ways by different manufacturers, but they are mostly considered "zero grade" fractions. Zero-grade high-purity nitrogen is categorized as such because they contain hydrocarbon impurities of less than 0.5 parts per million.   Other key characteristics of high purity nitrogen are:   Oxygen concentration ≤ 0.5 ppm   Carbon monoxide/carbon dioxide not more than 1.0 ppm   Moisture not greater than 3 ppm   Low purity nitrogen   Nitrogen with a purity of 90% to slightly less than 99.9% is considered low purity.   Nitrogen Purity Classification   The classification of pure nitrogen is accomplished through a grading system using numbers within each lowest purity grade. The first number of each grade refers to the number of "nines" that appear within it, while the second number represents the number after the last nine digits.   Purity grades of nitrogen are categorized as N2.0, N3.0, N4.0, N5.0, N6.0, and N7.0.   What is ultra-high purity nitrogen?   Ultrahigh-purity nitrogen is nitrogen with a concentration of 99.999% and negligible impurities. Nitrogen specifications are stringent and variations invalidate the classification.   The gas must not contain more than two parts per million by volume (ppmv) of oxygen, 0.5 parts per million by volume of total hydrocarbons, and one part per million by volume of moisture). Nitrogen is commonly used for scientific applications.   What is oxygen-free nitrogen?   Oxygen free nitrogen (OFN) is defined as gaseous nitrogen containing no more than 0.5 parts per million (ppm) of oxygen. OFN gases are typically maintained at 99.998% purity. This grade of nitrogen is used in scientific research and calibration processes where oxygen impurities may alter results or cause incorrect results. Nitrogen Purity Levels by Industry/Application   As mentioned above, the concentration of nitrogen required for different industrial processes varies greatly. The key consideration in selecting a nitrogen grade is the effect of impurities on the chosen application. Sensitivity to moisture, oxygen and other contaminants are key factors to consider.   Food Grade Nitrogen / Beverage Grade Nitrogen   Nitrogen is commonly used in different steps of food/beverage production, packaging and storage. Nitrogen in food packaging and processing is used to maintain the shelf life of processed foods/beverages by eliminating food oxidants, preserving flavor and preventing rancidity. The purity required for food grade nitrogen is typically in the range of 98-99.5%.   Pharmaceutical Grade Nitrogen   Pharmaceutical manufacturing processes require high purity to prevent contamination and alteration of the final product. Many pharmaceuticals require high grade nitrogen with purities between 97-99.99%. This high to ultra-high purity nitrogen is used to cover nitrogen tanks, containers and other drug manufacturing equipment.   High purity nitrogen is also used in pharmaceutical packaging to help maintain freshness and prevent deterioration of active ingredients.   Gaseous nitrogen with 95-99% purity is used in the oil and gas industry to reduce the risk of fire and explosion during the process. Inerting chemical storage tanks and purging pipelines with gaseous nitrogen helps minimize the risk of sudden combustion of their contents.   Pipeline maintenance services often use pressurized nitrogen for pipeline cleaning and pipeline decommissioning processes.   Industrial Nitrogen Grade Purity   Some industrial applications and their nitrogen grade requirements are outlined below.   Electronics and Semiconductor Manufacturing Grade Nitrogen   Typical nitrogen content requirements in electronics and semiconductor manufacturing are usually at least 99.99-99.999%. Some processes such as parts cleaning and adhesive coverage use lower concentrations of nitrogen (95-99.5%).   Plastics Manufacturing Grade Nitrogen   Nitrogen grade requirements for plastics synthesis are 95-98% for injection molding, 99.5% for gas-assisted injection molding, and 98-99.5% for blown film extrusion.   Metal processing grade nitrogen   The nitrogen content of metal processing grade varies greatly, from 95-99% for heat treatment to 99-99.999% for laser cutting process.   Power generation grade nitrogen   Nitrogen in the 95-99.6% range is required for power generation processes such as air seal blowdown, boiler lining, natural gas pipeline blowdown and water softening overlay.

Ultra-high purity gases are essential throughout the semiconductor supply chain. In fact, for a typical fab, high-purity gases are the largest material expense after silicon itself. In the wake of the global chip shortage, the industry is expanding faster than ever - and the demand for high purity gases is increasing. The most commonly used bulk gases in semiconductor manufacturing are nitrogen, helium, hydrogen and argon.   Nitrogen   Nitrogen makes up 78% of our atmosphere and is extremely abundant. It also happens to be chemically inert and non-conductive. As a result, nitrogen has found its way into a number of industries as a cost-effective inert gas. The semiconductor industry is a major consumer of nitrogen. A modern semiconductor manufacturing plant is expected to use up to 50,000 cubic meters of nitrogen per hour. In semiconductor manufacturing, nitrogen acts as a general purpose inerting and purging gas, protecting sensitive silicon wafers from reactive oxygen and moisture in the air.   Helium   Helium is an inert gas. This means that, like nitrogen, helium is chemically inert - but it also has the added advantage of high thermal conductivity. This is particularly useful in semiconductor manufacturing, allowing it to efficiently conduct heat away from high-energy processes and help protect them from thermal damage and unwanted chemical reactions.   Hydrogen   Hydrogen is used extensively throughout the electronics manufacturing process, and semiconductor production is no exception. In particular, hydrogen is used for:   Annealing: Silicon wafers are typically heated to high temperatures and slowly cooled to repair (anneal) the crystal structure. Hydrogen is used to transfer heat evenly to the wafer and to assist in rebuilding the crystal structure.   Epitaxy: Ultra-high purity hydrogen is used as a reducing agent in the epitaxial deposition of semiconductor materials such as silicon and germanium.   Deposition: Hydrogen can be doped into silicon films to make their atomic structure more disordered, helping to increase resistivity.   Plasma Cleaning: Hydrogen plasma is particularly effective in removing tin contamination from light sources used in UV lithography.   Argon   Argon is another noble gas, so it exhibits the same low reactivity as nitrogen and helium. However, argon's low ionization energy makes it useful in semiconductor applications. Because of its relative ease of ionization, argon is commonly used as the primary plasma gas for etch and deposition reactions in semiconductor manufacturing. In addition to this, argon is also used in excimer lasers for UV lithography.   Why purity matters   Typically, advances in semiconductor technology have been achieved through size scaling, and the new generation of semiconductor technology is characterized by smaller feature sizes. This yields multiple benefits: more transistors in a given volume, improved currents, lower power consumption and faster switching.   However, as the critical size decreases, semiconductor devices become increasingly sophisticated. In a world where the position of individual atoms matters, fault tolerance thresholds are very tight. As a result, modern semiconductor processes require process gases with the highest possible purity. WOFLY is a high-tech enterprise specializing in gas application system engineering: electronic special gas system, laboratory gas circuit system, industrial centralized gas supply system, bulk gas (liquid) system, high purity gas and special process gas secondary piping system, chemical delivery system, pure water system to provide a full set of engineering and technical services and ancillary products from the technical consulting, overall planning, system design, selecting the equipment, prefabricated components, the installation and construction of the project site, the overall system testing, maintenance and other supporting products in an integrated manner.

Organized by Shenzhen Overseas Chinese Entrepreneurs Think Tank Research Institute, Malaysia Chiu Chow Chamber of Commerce and Industry and Guangdong Qidian Group, the "Overseas Chinese Entrepreneurs Fair 2023 (Kuala Lumpur) Smart Technology Exhibition" will be held at the World Trade Center in Kuala Lumpur, Malaysia from June 16 to 18, with more than 2,000 new Chinese technology products on display. 6.24 - 6.26 The Smart Tech Expo in Bangkok, where Chinese exhibitors will discuss the market and opportunities for smart technology products with Thai businessmen. During the exhibition, hundreds of Chinese smart new energy products and technologies will be presented. Driven by the policy and market in China and Malaysia, the commercialization of new energy storage is accelerating and has huge commercial development space. This exhibition will gather cutting-edge trends and product information of new energy storage industry and help industry partners to find suitable upstream and downstream suppliers. For traditional factories and related industrial fields in urgent need of technological transformation and upgrading of buyers, this exhibition is full of attractions, many safety and automation equipment, electronic gas automation system, automated machinery and energy-saving equipment suppliers will appear at the exhibition, showing all kinds of automation, precision and intelligent industrial solutions. As a professional gas application system integrator with a good reputation in China, its business covers: ultra-high purity electronic special gas system, laboratory gas system, bulk gas (liquid) system, industrial centralized gas supply system, special process gas secondary piping system, chemical delivery system, pure water system, providing technical consultation, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance and other complete engineering services and supporting products, The project covers semiconductor, integrated circuit, flat panel display, photoelectric, new energy, nano, optical fiber, microelectronics, petrochemical, biomedical, various laboratories, research institutes, standard testing and other high-tech industries to provide customers with a full set of high-purity media delivery system Solutions; gradually become the industry's leading overall system supplier. This exhibition, the key exhibits have domestic independent research and development and production of ultra-high purity BA/EP grade diaphragm valves, regulators in the Malaysian market and Southeast Asian market for nearly 10 years of sales test, deep customer trust. At the same time the application of the domestic semiconductor and photovoltaic enterprises has been recognized and respected by the majority of customers. Realize the first choice of high-quality domestic products to replace imported products, but also for the Chinese manufacturing in overseas markets to add a new business card. On-site customers gave very high attention to the product's, the organizer interviewed Wofei Technology on site, Mr. He described the product's market in Malaysia and the strategic route of Belt and Road to the reporter, and elaborated on the price and quality of our products, expressing confidence in the overseas market. The interview was then reported in the relevant media. Woflyi Technology products in Southeast Asia and Russia received many customers like, in order to more in-depth understanding, overseas customers have come to China to visit and exchange. Group photo of Russian customers                                      Group photo of Malaysian customers in Hunan branch For this reason, Wofei makes extra efforts to do every detail of each high purity gas valve fittings to ensure the safety and reliability of each application scenario. As well as high cleanliness VCR micro-welded fittings, secondary valve fittings, hydrogen energy valves, etc.; special gas equipment and fittings (GC/GR/VMB/VMP/VDB/VDP/gas sink switching device) are exhibited in this exhibition, specific details can search the official website of Wolfei Technology to learn more.

AFKLOK helps the third generation of electronic semiconductor high-speed development, a comprehensive display of technology and products, 5/16-18 Shenzhen International Semiconductor Exhibition 16C051 and so you visit!   The fifth Shenzhen International Semiconductor Technology and Application Exhibition was officially opened on May 16 at Shenzhen International Convention and Exhibition Center (Baoan New Hall) / Hall 14 & Hall 16. SEMI-e Shenzhen Semiconductor Exhibition plunges deep into the field of semiconductor industry, focuses on the core technology and development trend of the industry, and contributes to the construction of a modern industrial system with international competitiveness in Guangdong, Hong Kong and Macao Greater Bay Area by building a professional and high-end industrial ecological exchange platform. As a key national development industry, the semiconductor industry is booming, and in the production process of semiconductor products, only by ensuring the stability of the packaging quality can we guarantee the final yield and reliability of integrated circuits. In order to ensure the quality of packaging, in addition to the need for advanced production lines, both the development and production of chips and components packaging, are inseparable from the safe and reliable electronic special gas system.   As a high-tech enterprise integrating engineering services and supporting products from technical consultation, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance and other engineering services, AFKLOK Technology can provide customers with: electronic special gas systems, laboratory gas circuit systems, industrial centralized gas supply systems, bulk gas (liquid) systems, high-purity gases and special process gases Secondary piping system, chemical transportation system, pure water system and other gas application projects. AFKLOK Technology has excellent design and manufacturing experience in gas piping engineering valve fittings, so the brand reputation, products and services have consistently reaped high praise. Special gas system is a system used to ensure the safe use of special gases. It is used in the fields of semiconductor, electronics, liquid crystal, photovoltaic and solar cell industries, etc. The production process in the semiconductor industry is crucial, but most of the special gases are dangerous gases, such as SiH4, NF3, etc.. Therefore, to ensure the safe use of special gases is the meaning of special gas system. The special gas system consists of three parts: special gas equipment, special gas pipeline and terminal, and the special gas cabinet is the core equipment of the special gas system.   AFKLOK's fully automatic gas cabinet with PLC as the main control body, with touch screen for system display and setting, with different plate design to meet the needs of the solar energy, semiconductor industry, and has: simple operation, high compatibility of control software, high system stability, full alarm record function, etc. The special gas cabinet can support the network or wiring two ways to signal output, the gas cylinder cabinet control system can be All the status, including operation condition alarm information, pressure value when supplying gas, etc., can be uploaded to the central control by network or hardware. The gas cabinet control system (hydrogen control system) can be operated and controlled remotely by means of the network, increasing the convenience and safety of operation. Special gas system engineering is an important and dangerous project, special gas cabinet is the core equipment of most of the functions, special gas system engineering is incomplete without special gas cabinet. AFKLOK technology to help the majority of customers in the production process to solve the operational convenience and safety issues difficult to combine the difficulties, from product quality to business planning to make a comprehensive effort to gradually break through the difficulties, to achieve the aggregation of quality services, to provide a one-stop service program to meet different application scenarios, suitable for differentiation, for the growth of enterprise productivity to push the wave.   AFKLOK independently developed regulators, diaphragm valves are used in various fields and are respected by customers. For a long time, AFKLOK Technology has been deeply understanding the market demand, taking technical innovation as a strong support, cultivating the industry, constantly innovating and upgrading technology and process, adapting to the gradually developing market demand for new technology with high quality products and innovative technology. In the era of rapid development of the industry, higher product quality is an important factor for enterprises to enhance their core competitiveness. Wofei Technology also truly recognizes that quality is the cornerstone of enterprise survival and safety is the guarantee of company development. Wofei Technology is dedicated to professionalism, responsibility and integrity, and is determined to become a leading high-end intelligent gas delivery system integrator in the high-purity gas industry.  

We are pleased to offer AFKLOK two ferrule compression tube fittings at Fluid Controls. These incredibly flexible tube fittings come in a variety of diameters and corrosion-resistant materials, offer remarkable leak-free couplings, and are extremely adjustable. Afklok Tube Fittings Wofly’s Afklok tube fittings are made to offer trustworthy leak-free connections for applications involving instrumentation, process and control, and analyzers. These tubefittings are produced to the highest quality standards and come in a variety of sizes, corrosion-resistant materials, and combinations. Afklok collection of tube fittings from the manufacturer is made of heat-code-traceable 316 stainless steel as standard. 6Mo, Alloy 825, Alloy 625, and Alloy C-276 are more materials. While curved bodies are machined from close grain forgings, straight fittings are produced from cold-finished bar stock. The tube fittings come in imperial sizes ranging from 1/16" to 2" O.D. and metric sizes ranging from 2 mm to 25 mm O.D. 1) male pipe to a tube. 2) Male pipe to female tube 3) tubes joined together. 4) connections for ports. 5) flare (AN) to A-LOK at 37. 6) O-ring to tube seal 7) systems welded to tubes. 8) Fittings for analysis. 9) Barbed fittings. Wofly can help you secure your order. Wofly is a manufacturing company of high-quality instrumentation and pressure control equipment in the China, and it own brands eg. AFK, Afklok, Wofly. Call +86-755-27919860 or send an email to info@szwofly.com to speak with a Fluid Controls expert about all of your fittings needs right away.

                                 How Does A Pressure Regulator Work?   There are a surprisingly large number of options on the market when it comes to choosing pressure regulators. But the truth is that every type of pressure regulator has a unique capability, and as a result, serves a unique purpose in every application. At Wofly, we want all of our clients to become more knowledgeable about the various sorts of regulators that are out there and how to choose the one that would meet their needs the best.     Different Pressure Regulator Types   Regulators for Pressure in Stainless Steel   A single stage pressure regulator known as pressure reducing is made to accept a greater inlet pressure (P1) and lower it to a lower controlled exit pressure (P2).   A back pressure regulator, sometimes known as a "overflow" regulator, is made to keep the inlet pressure (P1) constant while providing end users with a controlled and reliable line pressure.   A dual-stage pressure regulator called Cylinder Pressure is made to accept a higher inlet pressure (P1) and reduce it to a lower controlled exit pressure (P2). To provide a higher level of control accuracy as the gas cylinder depletes, these are frequently put on gas cylinders or bottles.     Specialty Regulators: These are regulators that use any of the aforementioned principles but are created for specific applications, such as miniature or compact versions for small spaces, dome-loaded designs for pneumatic pilot air operation, high pressure designs for up to 6,000PSIG control, high flow designs for up to 3.00 Cv, high temperature designs for up to +230°C, crossover manifolds for automatic cylinder bottle switching, and more.     How a Pressure Regulator Works     When media enters the device through the intake port of one of our popular R11 Series single stage pressure lowering regulators, it is held bubble-tight underneath the poppet in the seat area, as seen by the red area in the animation. The regulated release of outlet pressure is then achieved by winding down on the hand knob, which forces the diaphragm down onto the poppet (manually activating the diaphragm), as depicted by the blue area in the animation.

Composition of Ferrule Connector     AFK ferrule type pipe connector is composed of four parts: front ferrule, Back ferrule, ferrule nut and connector body. Advanced design and strict quality ensure that the pipe connector is completely sealed under correct installation.     Operating Principle of Ferrule Connector   When assembling the ferrule joint, the front ferrule is pushed into the joint body and ferrule to form the main seal, and then the ferrule is hinged inward to form a strong grip on the ferrule. The geometry of the rear ferrule is conducive to the generation of advanced engineering hinge clamp action, which can transform the axial movement into the radial extrusion of the ferrule, requiring only a small assembly torque during operation.   Features of AFK Ferrule Connector   1.Active load and double ferrule design 2.Easy and correct installation 3.The torque will not be transmitted to the ferrule during installation 4.Fully compatible   Features of Double Ferrules   The double ferrule separates the sealing function from the gripping function of the ferrule, and each ferrule is optimized for its corresponding function.   The front ferrule is used to form a seal:   1. Sealing with connector body 2. Seal the outer diameter of the ferrule.   When the nut is rotated, the rear ferrule will:   1. Push the front ferrule axially 2. Apply an effective clamping sleeve along the radial direction for gripping

The components of the diaphragm valve are as follows:   Valve cover   The valve cover serves as the top cover and is bolted to the valve body. It protects the compressor, valve stem, diaphragm and other non wetting parts of the diaphragm valve.   valve body   The valve body is a component directly connected with the pipe through which the fluid passes. The flow area in the valve body depends on the type of diaphragm valve.   The valve body and bonnet are made of solid, rigid and corrosion resistant materials. Diaphragm   The diaphragm is made of a highly elastic polymer disc that moves downward to contact the bottom of the valve body to restrict or obstruct the passage of fluid. If fluid flow is to be increased or the valve is to be fully opened, the diaphragm will rise. The fluid flows below the diaphragm. However, due to the material and structure of the diaphragm, this assembly limits the operating temperature and pressure of the valve. It must also be replaced regularly, because its mechanical properties will decrease during use.   The diaphragm isolates the non wetted parts (compressor, valve stem and actuator) from the flow medium. Therefore, solid and viscous fluids are unlikely to interfere with the diaphragm valve operating mechanism. This also protects non wetted parts from corrosion. On the contrary, the fluid in the pipeline will not be contaminated by the lubricant used to operate the valve.

As a national key industry, the semiconductor industry is booming. In the production process of semiconductor products, only by ensuring the stability of packaging quality, can the final yield and reliability of integrated circuits be guaranteed. In order to ensure the quality of packaging, in addition to the need for advanced production lines, both the R&D and production of chips and the packaging of parts are inseparable from a safe and reliable electronic special gas system. As a high-tech enterprise integrating technical consultation, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance and other engineering technical services and supporting products, Wofei Technology can provide customers with: electronic special gas system, laboratory gas circuit system, industrial centralized gas supply system, bulk gas (liquid) system Gas application engineering of high purity gas and special process gas secondary piping system, chemical delivery system, pure water system, etc. Wofei Technology has excellent design and manufacturing experience in gas pipeline engineering valves, so its brand reputation, products and services have been highly praised.   Special gas system is used to ensure the safe use of special gas. Because the gas properties of special gases can meet the process needs of the industry, they are widely used in semiconductor, electronics, liquid crystal, photovoltaic and solar cell industries, and are crucial in the production process of the semiconductor industry. However, most of the special gases are dangerous gases, such as SiH4, NF3, etc. Therefore, ensuring the safe use of special gas is the significance of the existence of special gas system. The special gas system is generally composed of special gas equipment, special gas pipeline and terminal, and the special gas holder is the core equipment of the special gas system.   The full-automatic gas holder of Wofei Technology takes PLC as the control main body, cooperates with the touch screen for system display and setting, and matches with different panel designs to meet the needs of the solar energy and semiconductor industry. It also has the advantages of simple operation, high control software compatibility, high system stability, and full alarm recording function. The special gas holder can support network or wiring for signal output. The control system of the gas cylinder cabinet can output all the states, Including operation status alarm information, pressure value during gas supply, etc., which can be uploaded to the central control through the network or hardware. The gas holder control system (hydrogen control system) can be operated and controlled remotely by means of network to increase the convenience and safety of operation. The special gas system project is an important and dangerous project, and the special gas holder is the core equipment related to most of its functions. The special gas system project without the special gas holder is incomplete. In order to help customers solve the problems of convenient operation and safety in the production process that are difficult to merge, Wofei Technology has made comprehensive efforts from product quality to business planning, gradually broken through the difficulties, achieved aggregation of high-quality services, provided one-stop service solutions that meet different application scenarios and are suitable for differentiation, and boosted the growth of enterprise productivity. As a leader in the industry, Wofei Technology is well aware of the importance of enterprises to improve their scientific and technological strength, so it is not stingy about the cost of technology investment. For a long time, Wofei Technology has deeply understood the market demand, taken technological innovation as a strong support, cultivated the industry, constantly innovated and upgraded technology and process, and used high-quality products and innovative technology to adapt to the gradually developing market demand for new technologies. In the era of rapid development of the industry, higher product quality is an important factor for enterprises to enhance their core competitiveness. Wofei Technology also truly recognizes that quality is the cornerstone of enterprise survival and safety is the guarantee of company development. Wofei Technology is dedicated to professional, responsible and honest, and aspires to become a leading high-end intelligent gas transmission system integrator in the high-purity gas industry.

Pipeline transportation is one of the five major logistics transportation modes in modern times. It has the outstanding characteristics of large transportation volume, continuity, rapidity, economy, safety, reliability, stability, low investment, small land occupation, low cost, and automatic control. Since the 12th Five Year Plan, under the multiple backgrounds of global response to climate change, upgrading of China's air pollution control, and increasing pressure on energy security due to the rapid increase of China's external dependence on oil and natural gas, China has proposed to implement an energy revolution. Its main purpose is to reduce the growth rate of total fossil energy consumption and gradually increase the proportion of renewable energy. Among them, hydrogen has attracted much attention. Hydrogen energy, as a new energy with zero carbon and high efficiency, has increasingly prominent application value in the world energy transformation. According to the medium and long-term plan for the development of the hydrogen energy industry (2021-2035), China's hydrogen energy industry chain will make great progress, including the steady construction of the hydrogen energy storage and transportation system.       According to the transportation distance of hydrogen, the requirements of hydrogen use and the distribution of users, high-pressure hydrogen can be transported through hydrogen pipes and long tube trailers. For occasions with large transportation volume and long distance, pipeline transportation is a more efficient way. Wofei technology, which has focused on gas pipeline engineering for more than ten years, attaches importance to the technical mode of obtaining hydrogen sources through diverse scenarios, and has carried out project exploration in green hydrogen and other fields, and constantly made solid steps. In terms of the supply of hydrogen energy, the company has the advantages of high safety, high efficiency and high reliability. It can provide high-standard hydrogen storage and transportation systems. On the premise of ensuring safety, it ensures quality, quantity and supply. It is committed to building an industrial system for hydrogen energy preparation, purification, storage and transportation, and hydrogen energy supply, and to building an integrated hydrogen pipeline engineering system of "hydrogen storage, hydrogen transportation and hydrogenation".       During the implementation of the whole hydrogen pipeline system project, especially during the installation of key process systems and core precision equipment, Wofei technology has always maintained control over safety, quality, progress and cost, and continuously paid attention to pipeline connection, pipeline installation, pipeline spacing, pipeline welding, pipeline lightning protection, anti-corrosion, anti-static, pipeline venting and other safety issues, It plays an important role in the success of the project.     It can be predicted that with the development of hydrogen energy, the demand for hydrogen pipeline system is expected to increase significantly in the next few decades. According to the blue book on infrastructure development of China's hydrogen energy industry, by 2030, China's hydrogen pipeline will reach 3000 kilometers. Wofei technology pays high attention to this, makes layout in advance, and captures business opportunities. It will continue to give full play to its accumulated experience in the hydrogen energy industry, consolidate and improve its research strength and scientific research level in the field of pipeline transportation in the hydrogen energy and other new energy fields, and offer wisdom and suggestions for promoting China's energy transformation and green and low-carbon development.

In the process of designing a laboratory, gas pipelines are usually involved. General laboratory gas mainly consists of non combustible gas (nitrogen, carbon dioxide), inert gas, combustible gas, highly toxic gas and combustion supporting gas. Therefore, in the process of designing the laboratory, it is necessary to consider the installation of the gas circuit, design and select appropriate clean gas pipes and gas valves according to the site environment and the requirements of different gases, and meet the needs of the laboratory for gas safety, purity and cleanliness. However, with the rapid development of the industry, due to the lack of unified technical requirements on key contents and key standards of laboratory gas transmission and other equipment systems, problems such as a wide variety of equipment and facilities, and the mismatch between the performance of special modules and equipment pipeline valves have gradually become prominent. There is a temporary lack of unified and accurate guidance on scheme design, technology implementation, test evaluation and actual deployment, which has a great impact on later use and maintenance. As a high-tech enterprise engaged in gas application system engineering, Wofei technology has long provided a full range of laboratory gas pipeline gas supply systems, providing one-stop complete services from overall planning, professional design, material selection, professional installation, system delivery, technical consultation, etc., to meet the gas use requirements and safety of different experiments. Advanced equipment and hardware, pragmatic design, installation and maintenance teams, and rich project experience make the company highly trusted and recognized by partners in semiconductor, integrated circuit, flat panel display, optoelectronics, new materials, new energy, optical fiber, fine chemicals, biomedicine, various laboratories and other industries.   The gas pipeline system in the laboratory adopts the centralized gas supply equipment of the busbar. It has the functions of manual, semi-automatic and full-automatic switching for double bottles (multi bottles). It is equipped with a low-pressure alarm device to monitor the gas pressure in real time, monitor the concentration, alarm and exhaust air, so as to ensure the normal gas demand of customers and the safety of life and property. Moreover, through the gas supply control system, the gas in the cylinder can be fully used, the residual gas can be reduced, and the gas consumption cost can be reduced. In addition, Wofei technology cooperates with the construction party to design the scheme according to the laboratory environment. As we all know, the gas supply of pipelines and pipelines is intricate and complex. In order to avoid mistakes and leaks, the company's designers marked the intersection and control valve of each gas path on the drawings. Through field investigation, they carried out comprehensive and systematic investigation and analysis to provide detailed and reliable data for the gas path design. At the same time, in the construction of the gas station, the management mode of gas cylinder room is used to improve the safety of the gas station. Stainless steel control panel is used for gas source control, and stainless steel series valves, connectors and other products are used for pipeline connection in the transmission process. In the future, Wofei technology will continue to promote the large-scale development of the laboratory gas circuit industry based on its own technology and practical experience, cooperate with ecological partners, provide technical support for the implementation of the gas transportation system in various industries, and help the healthy development of industrial safety.