Introduction to the regulating valve

Flow regulating valve is often required for water diversion valve body. Flow control valve is divided into the float control valve and the electric control valve, widely used in the field of flow control, such as: sewage treatment plants, waterworks into the water; drainage pipe flow control; drainage system flow scheduling; municipal drainage management In the project. Is a kind of efficient, environmentally friendly, safe and energy-saving new flow control products. As the valve control system complex, high precision control; Therefore, China's traditional valve manufacturers generally can not produce the kind of valve, the domestic use of the products mainly rely on imports, the production valve is more well-known German Steinhardt company, the United States Some businesses

Silicon Nitride Ceramic Disc

Silicon nitride can also be applied to solar cells. After the silicon nitride film is plated by PECVD, not only can it be used as an anti-reflection film to reduce the reflection of incident light, but also, in the deposition process of the silicon nitride film, hydrogen atoms of the reaction product enter the silicon nitride film and the silicon wafer. It acts as a passivation defect. Here, the silicon nitride nitrogen atomic number ratio is not strictly 4:3, but varies within a certain range depending on the process conditions, and the physical properties of the film corresponding to different atomic ratios are different.
For ultra-high temperature gas turbines, aircraft engines, electric furnaces, etc.

Silicon Nitride Ceramic Disc,Black Silicon Nitride Ceramic Disc,Ceramic Structure Disc,Plate Silicon Nitride Disc

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