Manufacture method of precise copper and aluminum compound pipe

Abstract

The invention relates to a method for producing high-precision copper aluminum composite tube, with oxidization resistance, low weight, stainless, and low cost or the like. And the invention comprises that high-temperature fusing the copper or aluminum into copper or aluminum blank, feeding blank into heating furnace, heating and rolling from a rolling product line to extrude the copper tube or aluminum tube, fusing copper or aluminum at high temperature, flowing it via high-precision copper aluminum composing machine, to coat a copper layer or an aluminum layer on the face of tube, and treating surface.

Description

1. Technical field: [0001] The production of precision copper-aluminum composite pipes belongs to non-ferrous metal composite pipes, which can be widely used in air conditioners, oil pipes and various pipeline materials, and can replace copper pipes, aluminum alloy pipes, iron pipes, and other types of pipes. 2. Technical background: [0002] At present, most of the pipes used in the society are copper pipes, aluminum alloy pipes, iron pipes and other pipes. A large amount of foreign exchange purchased copper. In recent years, the price of copper has been rising all the way. The highest price reached more than 80,000 yuan / ton, which was twice the increase from the previous year. Even if the manufacturing cost increased significantly, it seriously affected the healthy development of the national economy and greatly damaged In order to protect the interests of consumers; aluminum alloy tubes require more abundant aluminum resources than copper, and the price is low and stable....

AI Technical Summary

Problems solved by technology

At the same time, it overcomes the disadvantages and deficiencies of large volume ratio of copper, shortage of resources, high price, easy oxidation and aging of aluminum, and poor durability.