Learning brazing knowledge brazing process steps
Release time:
2023-01-02
【Summary Description】 Today I talk to you about the basic steps of the brazing process. The brazing process includes the following steps: 1) the surface treatment of the workpiece: including the removal of oil, the removal of excessive oxide skin, and sometimes the need for surface plating of various metals conducive to brazing; 2) Assembly and fixing: to ensure the mutual position of the workpiece parts is unchanged; 3) the best configuration of brazing filler metal and brazing filler position, so that the liquid brazing filler metal can obtain the most ideal direction in the vertical and horizontal complex brazing seam; 4) When the solder does not flow into the brazing seam on the surface of the workpiece, it is sometimes necessary to apply a flow retardant to regulate the flow direction of the solder; 5) Correct selection of brazing process parameters, including brazing temperature, heating rate, post-weld insulation time, cooling rate, etc; 6) Cleaning after brazing to remove flux residues that may cause corrosion or deposits that affect the shape of the brazing seam; 7) When necessary, brazing seam and the whole workpiece shall be plated after welding, such as plating other metal protective layer, oxidation or passivation treatment, painting, etc. The above procedures are different for different brazing base materials.
Today I talk to you about the basic steps of the brazing process.
The brazing process includes the following steps:
1) the surface treatment of the workpiece: including the removal of oil, the removal of excessive oxide skin, and sometimes the need for surface plating of various metals conducive to brazing;
2) Assembly and fixing: to ensure the mutual position of the workpiece parts is unchanged;
3) the best configuration of brazing filler metal and brazing filler position, so that the liquid brazing filler metal can obtain the most ideal direction in the vertical and horizontal complex brazing seam;
4) When the solder does not flow into the brazing seam on the surface of the workpiece, it is sometimes necessary to apply a flow retardant to regulate the flow direction of the solder;
5) Correct selection of brazing process parameters, including brazing temperature, heating rate, post-weld insulation time, cooling rate, etc;
6) Cleaning after brazing to remove flux residues that may cause corrosion or deposits that affect the shape of the brazing seam;
7) When necessary, brazing seam and the whole workpiece shall be plated after welding, such as plating other metal protective layer, oxidation or passivation treatment, painting, etc.
The above procedures are different for different brazing base materials.
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