Solenoid valve failure will have a direct impact on the switching valve and regulating valve action, the common fault solenoid valve does not act, should be checked from the following aspects: (1) Solenoid valve loose or thread head off, the solenoid valve can not be tight, tight Thread fixed head. (2) Solenoid coil burned out, remove the solenoid valve wiring, with a multimeter to measure, if the open circuit, the solenoid valve coil burned out. The reason is the coil damp, resulting in poor insulation and leakage flux, causing the coil current is too large and burned, so to prevent rain into the solenoid valve. In addition, the spring is too strong, the reaction force is too large, the number of coil turns is too small, and the suction is insufficient, the coil can also be burned. In emergency, the manual button on the coil can be turned to "1" position by the "0" bit during normal operation, so that the valve is opened. (3) solenoid valve stuck. Solenoid valve sleeve and valve spool with a very small gap (less than 0.008mm), are generally a single assembly, when mechanical impurities into or too little oil, it is easy to get stuck. Approach can be used steel wire from the hole into the head, make it bounce. The fundamental solution is to remove the solenoid valve, remove the valve plug and spool sleeve, with CCI4 cleaning, making the spool movement in the valve sleeve flexibility. Disassembly should pay attention to the assembly sequence and the location of external wiring in order to reassemble and wiring properly, but also check the oil mist hole is blocked, the lubricating oil is sufficient. (4) leaks. Leakage will result in insufficient air pressure, making it difficult to open and close the forced valve due to damaged gaskets or slide valve wear caused by several cavity blow-by gas. In dealing with switching system solenoid valve failure, should choose the appropriate time, and so on when the solenoid valve is in power loss processing, if not within a switching gap processing, the switching system can be suspended, calmly deal with.
Aluminum Casting Parts
Aluminum alloy parts are widely used in many industries. There are many processing methods for aluminum alloy products, such as CNC machining, extrusion molding, die casting, gravity casting, forging, sand casting and so on. Each of these processing methods has its own advantages and characteristics, and some are also determined according to the structure of the product. Aluminum investment casting can reduce mold development time and cost. Precision castings with complex structures can also be easily realized with short mold development time. And it is suitable for small batch and large batch production.
SCZY is very professional in the production of metal products, especially in investment casting and precision CNC machining. We can analyze the product structure and other aspects, and can make suggestions for improvement or optimization of the unreasonable aspects of the product structure to ensure the stability of subsequent mass production. Our in-house precision CNC machining can ensure the accuracy requirements of the product, and the accuracy can reach ±0.01mm under normal conditions. We are more than happy to solve all problems.
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