Year1
- 型号：
- 420
- 材质：
- 不锈钢
- 工艺：
- 钎焊
Shenzhen Su's heat treatment stainless steel vacuum brazing
c=r> Song Dynasty> Brazing is a metal thermal connection method. Vacuum brazing refers to raising the temperature to the melting temperature of the solder in a vacuum-protected atmosphere, using the solidification of the liquid solder and the diffusion with the base metal to realize the connection between metals. The salient feature of brazing is that If the welding temperature is lower than the base metal, the effect will be small and no heat-affected zone will appear.
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c=r> 宋体> During brazing, the wetting, spreading and flowing process of the filler metal to the base metal plays an extremely important role in the quality of brazing. If the filler metal does not wet the base metal, brazing cannot be achieved. If the filler metal does not spread, flow and fill the seams on the base metal, it is impossible to form a good brazed joint. There is always a thin layer of oxide film on the surface of stainless steel, which is the main obstacle for the molten brazing material to wet the base metal. Therefore, the removal of the oxide film has an important impact on the quality of brazing.
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