Sichuan Tunnel Crawling Welding Machine Geomembrane Welding Machine Manufacturer

Description :

　　When using a climbing welding machine for vertical welding, there are difficulties in operation due to the easy dripping of welding rod droplets and molten iron in the molten pool. Therefore, the following points should be noted: thinner diameter welding rods and smaller welding currents should be used. Short arc welding should be used to shorten the droplet transition distance. Choose the correct inclination angle for the welding rod. When butt welding, the angle of the welding rod should be 90 degrees in both the left and right directions, forming an angle of 60 °~80 ° with the vertical plane below. According to the joint form and molten pool temperature, flexibly choose the method of transporting the strip. The key points of vertical welding operation are: vertical welding should use welding rods with smaller diameters than flat welding and smaller welding currents or flames, reduce the volume of the molten pool and prevent the temperature of the molten pool from being too high, thereby reducing the downward flow of metal in the molten pool. Short arc welding should be used to shorten the distance from the droplet to the molten pool. ）Try to shorten the heating time of the arc or flame on the workpiece as much as possible during welding, and do not stay at a certain point for too long. The method of selecting the arc and moving the rod can be used. When the arc or flame forms a molten pool on the workpiece, the welding rod can be moved upward or to both sides to temporarily move the arc or flame away from the molten pool (without extinguishing the arc), which is beneficial for the cooling and solidification of the deposited metal, and then the welding rod can be moved back. Correctly select the angle of the welding rod (90 ° in the left and right directions, 60 ° -80 ° perpendicular to the lower plane), and use the blowing force of the arc or flame to push the molten pool upwards, which is conducive to the transfer of molten droplets and supporting other metals. Generally, bottom to top welding is used, and when welding thin parts (less than 3mm), it can also be welded from top to bottom. Gas welding is generally done from bottom to top, but when welding underwater, it should be done from top to bottom.

　　The geomembrane welding machine meets the welding of geomembranes of different thicknesses and is suitable for welding all hot-melt materials such as PE, PVC, HDPE, EVA, PP, etc.

　　The temperature control part of this series of welding machines adopts automatic constant temperature PID control; High control accuracy and minimal temperature fluctuations. The speed control part adopts pulse width modulation (PWM) automatic voltage and speed stabilization circuit; Driven by a DC servo motor, the output torque is large and the walking is smooth. Can maintain a constant speed during climbing and changes in road load. This series of welding machines has stable performance and is not affected by external temperature and voltage changes.

　　Sichuan Tunnel Crawling Welding Machine Geomembrane Welding Machine Manufacturer

AfterSalesService :

• Tunnel climbing welding machine