Copper and steel bimetal bridging welding method
A welding method and bimetallic technology, applied in welding equipment, metal processing equipment, welding/welding/cutting items, etc., can solve the problems of poor air tightness of workpieces, low tensile strength of joints, high requirements for welding personnel, etc., and achieve good welding , easy to standardize operation, combined with tight effect
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[0023] Example 1
[0024] In this embodiment, 304 stainless steel and aluminum bronze are bridged and welded. The specific steps are:
[0025] (1) Pickling the 304 stainless steel barrel and removing oil stains on the surface, prepare aluminum bronze material with the same composition as the aluminum bronze to be welded, cut into blocks, prepare charcoal that accounts for 0.5% of the total weight of aluminum bronze;
[0026] (2) The aluminum bronze material and charcoal are mixed and put into a steel drum. The total volume of aluminum bronze and charcoal is 20% of the total volume of the inner space of the steel drum. The one with a circular hole in the center is the same as the stainless steel to be welded. The stainless steel cover is welded and fixed on the 304 stainless steel barrel, the round hole is connected to the inside of the 304 stainless steel barrel, and then the steel barrel is placed in a heating furnace, heated to 1050°C, kept for 60 minutes, and a melt is formed ...
Example Embodiment
[0031] Example 2
[0032] In this embodiment, 20# steel and tin bronze are bridged and welded. The specific steps are:
[0033] (1) Pickling the 20# steel drum and removing oil stains on the surface, prepare tin bronze material with the same composition as the tin bronze to be welded, cut into blocks, prepare charcoal which accounts for 1% of the total weight of tin bronze;
[0034] (2) Put the tin bronze and charcoal into a steel drum after mixing. The total volume of copper and charcoal is 40% of the total volume of the inner space of the steel drum. The 20# steel cover with a round hole in the center is welded and fixed to 20 On the #steel drum, the round hole is connected to the inside of the 20# steel drum, and then the steel drum is placed in a heating furnace, heated to 1200°C for 30 minutes, and a melt is formed in the 20# steel drum;
[0035] (3) Put 20# steel drum with melt in the centrifuge, turn on the centrifuge and rotate at 500rpm, the melt is gradually cooled until all...
Example Embodiment
[0039] Example 3
[0040] In this embodiment, 20# steel and brass are bridged and welded. The specific steps are:
[0041] (1) Pickling the 20# steel drum and removing the surface oil stains, prepare the brass material with the same composition as the brass to be welded, cut into blocks, prepare charcoal which accounts for 2% of the total weight of the brass;
[0042] (2) Put the brass material and charcoal into a steel drum after mixing. The total volume of the copper material and charcoal is 60% of the total volume of the inner space of the steel drum. Weld and fix the 20# steel cover with a circular hole in the center. On the 20# steel drum, the round hole is connected to the inside of the 20# steel drum, and then the steel drum is placed in a heating furnace, heated to 1350℃, kept for 10 minutes, and a melt is formed in the 20# steel drum;
[0043] (3) Put the 20# steel drum with the melt in the centrifuge, turn on the centrifuge and rotate at 650rpm, the melt is gradually cooled ...
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