A copper-steel bimetal bridge welding method

A welding method and bimetal technology, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of poor airtightness of workpieces, low tensile strength of joints, and high requirements for welding personnel, achieving good welding and easy standardized operation. , the effect of combining
CN103753042BInactive Publication Date: 2016-05-11NORTHEASTERN UNIV LIAONING

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NORTHEASTERN UNIV LIAONING
Publication Date
2016-05-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of metal welding, and particularly relates to a copper and steel bimetal bridging welding method. The method includes firstly adding copper material and charcoal into a steel drum, then placing the steel drum in a heating furnace to form flux inside, placing the steel drum with the flux into a centrifuge, turning on the centrifuge to rotate in the speed of 400 to 800 rpm, allowing the flux to cool till solidifying as copper alloy, allowing the middle of the copper alloy to form a sump, obtaining a bimetal drum, then placing the bimetal drum into casting sand to cool till room temperature, obtaining a bimetal combined drum, rolling, extruding, tensioning, forging and cutting the bimetal combined drum, obtaining a steel and copper welding bridge, welding steel to be welded to the steel side of the welding bridge, welding copper to be welded to the copper side of the welding bridge, and finishing steel and copper welding. According to the technical scheme, the atomically-bound copper and steel bimetal serves as a bridge, copper and copper, steel and steel can be welded easily, and copper and steel bimetal welding can be realized.
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Description

technical field

[0001] The invention belongs to the technical field of metal welding, in particular to a copper-steel double-metal bridge welding method. Background technique

[0002] In the research and application of traditional industries, due to the large differences in physical and chemical properties of steel and copper alloys, they are classified as ferrous metals and non-ferrous metals respectively; but in aerospace, nuclear power plants, electromechanical, chemical, metallurgical and other industrial manufacturing Welding joints of composite components formed between steel and copper or copper alloys can be seen. On the one hand, the connection of steel and copper or copper alloy can form a metal structure that meets various special needs, especially workpieces that require both high strength and high electrical and thermal conductivity; on the other hand, copper alloy surfacing on steel It can improve the performance of the workpiece surface, such as improving wea...

Claims

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