In the 1940s, the solenoid valve was not called a solenoid valve but a freezer, which was a product of a research project in automation, which is also the prototype of the solenoid valve we use today. We knew that the automatic temperature control device of the refrigerator was very much needed at that time, so we developed a cold solenoid valve and an expansion valve. These two solenoid valves are the ancestors of the current two-way solenoid valve.
In the late 1940s in my country, there was a small-scale solenoid valve manufacturing plant in Shanghai, which mainly produced refrigeration valves and water valves, and it continued to do so until the mid-1960s, which shows how late the development of solenoid valves in my country started.
In the 1960s, the emergence of new materials "reinforced nylon and fluoroplastics" greatly improved the performance of solenoid valves, and various solenoid valves such as high temperature, high pressure, anti-corrosion, explosion-proof, waterproof, dust-proof, and damp-heat appeared on the market.
In the 1970s, solenoid valve factories emerged in my country one after another. These solenoid valve factories are like mushrooms after the rain.
In the 1980s, with the development of the automobile industry, the role of high-speed solenoid valves gradually became dominant in new hydraulic systems such as common rail EFI systems, ABS systems, camless valve structures, continuously variable transmission systems, and active suspension systems. To a large extent, researchers are more actively looking for ways to improve the performance of solenoid valves to meet the requirements for response speed and control accuracy.
The development of science and technology has led to the automation of industrial production, and the production operations are gradually replaced by machinery. In order to achieve this goal, more controllable fluid media are required to participate in the operation process, such as pressure oil, compressed air, vacuum state, etc. . Solenoid valve is produced under such demand. It is an automatic component that uses electromagnetic force to control the flow direction of fluid medium. It has fast response speed, simple structure, strong anti-pollution and anti-interference ability of valve port, repeatability Good, stable and reliable action, small size, light weight, low power consumption and low price, etc., are widely used in fluid transmission and automatic control systems.
With the rapid development of solenoid valves, solenoid valves have been widely used in aviation, aerospace, automobiles and other fields. With the development of solenoid valves, the performance parameters of solenoid valves are not only an important basis for reference in industrial automation production, but also play a considerable role in promoting the development of the solenoid valve industry itself. The solenoid valve test system is accompanied by the development of solenoid valves. And the continuous emergence of new technologies gradually improved.