Method for cladding bimetal
A bimetallic and cladding technology, applied in the production field of bimetallic composite wire, can solve the problems of uneven copper layer, complicated control process, late bonding of bimetallic contact surfaces, etc., and achieve the effect of improved bonding and easy molding.
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[0028] Example 1:
[0029] a. The outer coating material is two formed flat copper strips with a thickness of 0.032 inches. After cleaning, the two copper strips are respectively transferred to the electric contact roller through the tension roller, and the copper strip is heated by the rectifier power supply, and the heating temperature is 800°C.
[0030] b. The outer surface of the steel core with a diameter of 0.344 inches is cleaned by a chemical cleaning device. The cleaned steel core is preheated by the annular heating induction coil on the ceramic insulating tube, and the heating temperature is 900°C. The protective gas nitrogen that inhibits the oxidation of the steel core is passed into the ceramic insulating tube. The steel core is carbon steel with a carbon content of 0.10%.
[0031] c. The preheated steel core and copper strip enter the gas protection chamber together. The gas protection chamber is filled with protective gas nitrogen that inhibits the surface oxidation ...
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[0033] Example 2:
[0034] The temperature of heating the copper strip in step a is 500°C, the temperature of preheating the steel core in step b is 700°C, and the rest are the same as in Example 1.
Example Embodiment
[0035] Example 3:
[0036] The temperature of heating the copper strip in step a is 900°C, the temperature of preheating the steel core in step b is 1100°C, and the rest are the same as in Example 1.
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