Plate heat exchanger welded
1.Clean the plate heat exchanger maintenance area before welding, and brush the chlorate soldering agent on the welding surface.
2. Place the plate heat exchanger flat before welding, the heat exchanger is filled with water, and wrap the vicinity of the weld zone with a damp cloth to avoid the high temperature generated during welding to be transmitted to the vicinity and melt other places or affect the welding strength.
3.The silver-based electrode used for welding has a silver content at least 45%, and the temperature during welding should not exceed 650 ° C, so as not to affect the welding strength.
4.The continuous welding time should be controlled not too long to reduce the excessive heat.