Brazing alloy prefilling process in vacuum brazing
A brazing material and brazing technology, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of solder falling off, interference fit assembly cannot be implemented, and it is difficult to be uniform, so as to prevent the solder from falling off.
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Embodiment 1
[0025] Embodiment 1 The solder presetting process includes the following steps:
[0026] 1) Preparation of solder and guide bar
[0027] Cut the foil-shaped solder into a 30×60 rectangular piece, put it in acetone for cleaning, take it out, blow it dry with hot air, and put it in a clean bag for later use; the solder is of gold-germanium-nickel-copper series, and The chemical components are 88% Au, 10% Ge, 1.5% Ni, 0.5% Cu, the shape of the solder is foil-like, and the thickness is 0.1mm;
[0028] Wipe clean the inner diameter of the hole between the end cylinder of the bar to be drilled and the end plate with silk cloth dipped in acetone, and place it in a clean environment for assembly;
[0029] 2) Assembly solder
[0030] The brazing filler metal is bent into a circle, and it is sleeved on the cylindrical part of the end of the guide bar, covered with a stainless steel strip with an area larger than the brazing filler metal and a thickness of 0.1, and tied tightly with a stainless s...
Embodiment 2
[0040] Embodiment 2 The solder presetting process includes the following steps:
[0041] 1) Preparation of solder and guide bar
[0042] Cut the foil-shaped solder into a 40×80 rectangular piece, clean it in acetone, take it out, dry it with a hot air blower, and put it in a clean bag for later use; the solder is gold-germanium-nickel-copper series. The chemical components are 80% Au, 18% Ge, 1.5% Ni, 0.5% Cu, the shape of the solder is foil-like, and the thickness is 0.1mm;
[0043] Wipe clean the inner diameter of the hole between the end cylinder of the bar to be drilled and the end plate with silk cloth dipped in acetone, and place it in a clean environment for assembly;
[0044] 2) Assembly solder
[0045] The brazing filler metal is bent into a circle, and it is sleeved on the cylindrical part of the end of the guide bar, covered with a stainless steel strip with an area larger than the brazing filler metal and a thickness of 0.1, and tied tightly with a stainless steel clamp; P...
Embodiment 3
[0055] Embodiment 3 The solder presetting process includes the following steps:
[0056] 1) Preparation of solder and guide bar
[0057] Cut the foil-shaped solder into a 40×80 rectangular piece, clean it in acetone, take it out, dry it with a hot air blower, and put it in a clean bag for later use; the solder is gold-germanium-nickel-copper series. The chemical components are 88% Au, 10.5% Ge, 1% Ni, 0.5% Cu, the shape of the solder is foil-like, and the thickness is 0.1mm;
[0058] Wipe clean the inner diameter of the hole between the end cylinder of the bar to be drilled and the end plate with silk cloth dipped in acetone, and place it in a clean environment for assembly;
[0059] 2) Assembly solder
[0060] The brazing filler metal is bent into a circle, and it is sleeved on the cylindrical part of the end of the guide bar, covered with a stainless steel strip with an area larger than the brazing filler metal and a thickness of 0.1, and tied tightly with a stainless steel clamp; P...
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