So the control of the welding parameter such as weldingpressure, gas flux, upsetting length is realized, and the system has a high dynamic response rapid and a high control precision.
This article introduce the application of mobile rail gaspressurewelding technology in the track maintenance of Shanghai Metro, and bring forward this technology is applicable and worthy to spread.
GA-1 reducer is used in quantitative output reducer for gas shielded welding and gas explosimeter. It has performance of pressure - reducing and gas flow control.