High Frequency Welding Machine High frequency welding machine, it provides a completely different finish than heat welding since its process it`s very different as well. This machine works with and electronic circuit that transmits a high frequency oscillation on a electric field alternating at high speed, the oscillation makes thermoplastic molecules to heat evenly to a melting point making them fuse completely after applying pressure and then refrigerating the materials resulting in a finished product that will be 100% waterproof with an airtight seal, flexible and with an impeccable visual finish while giving a higher stability, resistance and durability to projects with high climate exposure. Another advantage of radiofrequency its adaptability being able to penetrate on thicker materials or with multiple layers and adapt to different molds to cut on custom margins when needed. Some industries that benefit from this process are: automotive, medical, entertainment, stationery, fashion and household. High Frequency Welding Machine,Pvc Book Cover Making Machine,Hf Plastic Welding Machine,High Frequency Plastic Welding Machine Hangzhou Xiaoshan Wanfeng Mechanical & Electrical Equipment Factory , https://www.hfweldingmachinery.com
Analysis W4-60C excavator gas control valve common fault
W4-60C type excavator brake air system, equipped with gas control valve between the pump and the reservoir, its main function is to separate oil and water in compressed air, filter the dust and impurities in the compressed air to prevent compression in the reservoir Air back to the pump, to ensure gas pressure stability in the 0.490-0.637MPa range, the maximum pressure does not exceed 0.784MPa. The following faults often occur during use: 1. The pressure regulating valve is damaged due to the pressure of the diaphragm, and the diaphragm 6 is a rubber product. Due to the frequent punching of the pressure, repeated arching and resetting, the gas, moisture Of the corrosion, so often make the diaphragm damage, this is the most prone to failure of the control valve. After the diaphragm is damaged, the compressed gas from the air pump enters the upper part of the pressure regulating valve through the diaphragm without entering the gas storage cylinder, so that the pressure of the gas storage cylinder can not rise. At this point pressure regulator valve temperature is easy to increase, the brake system barometer shows the lack of pressure, pressure regulator valve can be heard at the leak sound. 2, the control valve housing rupture The valve housing by the upper, middle and lower parts, respectively, with screws. As the shell made of aluminum, in the decomposition or combination, if the demolition, install the screw method is improper, easy to make the shell rupture. Faults in the demolition, install the screw, should be diagonally and in multiple tightening or loosening, so that the shell according to the force on the face ç» consistent, to prevent damage due to uneven force.