Wetting Mechanism of Silver Wire on Cemented Carbide and Selection Methods of Various Matching
Release time:
2022-06-08
【Summary Description】 Under the premise of ensuring the welding quality, when welding copper pipe, copper pipe and stainless steel pipe, the common way is flame brazing, using copper wire and adding borax flux.
Under the premise of ensuring the welding quality, when welding copper pipe, copper pipe and stainless steel pipe, the common way is flame brazing, using copper wire and adding borax flux. The melting point of copper is 1083.4 degrees, the melting point of iron is 1534.8 degrees. The melting point of stainless steel is as high as 1500 ℃ to 1600 ℃, copper and iron can be welded, a variety of methods 1, copper wire, MIG welding; 2, brazingsilver welding wire; 3, friction welding, etc., depends on the specific workpiece to determine the welding method.
1. Use silver welding wire. Argon arc welding is faster and looks good. During operation, the copper tube should be heated first, and the silver brazing material can only be stuck when the temperature reaches, and then the welding torch should be swung to the stainless steel. Copper stays long, stainless steel stays short just to go through quickly.
2, the best way is brazing, plus silverWelding rod. The welding effect will ensure your satisfaction and find a place to process it.
The main difficulty in welding steel with copper and copper alloys is the susceptibility to cracks in the weld and fusion zones. Practice has proved that in order to ensure that the weld has a high enough crack resistance, the mass fraction of iron in the weld should be controlled at 10% ~ 43%. This method is more economical than silver welding wire.
In addition, when copper is welded to different metal materials, the choice is also different. When welding low carbon steel with copper and copper alloy, hand arc welding, submerged arc welding and tungsten argon arc welding can be used respectively. When welding low carbon steel and pure copper, pure copper is used as filler metal material, such as electrode TCu (T107); when argon tungsten arc welding, silicon manganese bronze is used QSi3-1 the welding wire. When low carbon steel is welded with silicon bronze and aluminum bronze, aluminum bronze can be used as filler metal material. When welding stainless steel and copper, nickel or nickel-based alloy is used as filler metal material.
Sub-arc welding, with special welding wire filling, gas welding can take 130 welding wire, flame gas welding. At 900 degrees, the thin layer has excellent fluidity. Hand arc can be welded with M210 by ordinary DC welding machine, because M210 supports all copper, copper alloy and the above metals, steel and cast iron. welded stainless steel.
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