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Method and device for continuous production of copper pipes

A technology for copper tubes and equipment, applied in the field of continuous production of copper tubes, can solve the problems of high production labor intensity, increase product production costs, low production efficiency, etc., achieve continuous production, improve product yield, and reduce occupied area. Effect

Pending Publication Date: 2019-07-23
佛山鑫信汇科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) Linear reciprocating stretching, low production efficiency, high production labor intensity, high difficulty in automation, and continuous production cannot be realized
[0005] (2) Auxiliary processes such as head cutting, annealing, pickling, and head remanufacturing are required after each stretch, resulting in low product yield
[0006] (3) After the product is annealed, pickling should be carried out to remove the oxides on the inner and outer surfaces of the product to ensure the surface finish of the product, so it is not conducive to environmental protection, and at the same time increases the production cost of the product

Method used

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  • Method and device for continuous production of copper pipes
  • Method and device for continuous production of copper pipes

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Embodiment Construction

[0015] Such as figure 1 As shown, a method for realizing the continuous production of copper tubes adds a welding process after the traditional two-roller periodic cold rolling process, welds the rolled and formed copper tubes in sequence, and then performs at least one annealing followed by coil stretching. By welding multiple copper tubes into one copper tube, it is convenient for subsequent continuous stretching. Depending on the degree of stretching of the copper tube, one or more stretches may be performed. When welding, the end of the copper pipe can be ground and smoothed as required.

[0016] In order to prevent the oxidation of the inner surface of the copper tube after the coil is stretched, the copper tube after the coil can be filled with inert gas and plugged at both ends to prevent the inner surface of the copper tube from being oxidized.

[0017] In order to prevent the oxidation of the outer surface of the copper tube during annealing, hydrogen and nitrogen m...

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Abstract

The invention discloses a method and device for continuous production of copper pipes. The method and device are characterized in that a welding process is added after a two-roller periodical cold rolling process, the copper pipes which are rolled to be formed are welded in sequence, and then after-annealing coil pipe stretching is conducted at least once. By means of the method and device for continuous production of the copper pipes, the multiple copper pipes are welded into one copper pipe, subsequent continuous stretching is achieved, and therefore copper pipe continuous production is achieved, and the production efficiency and the finished product yield are improved. The labor intensity of workers in the production process is lowered, the occupied area of the equipment can be reduced,and the occupied area of a coil stretching device is far smaller than the occupied area of a straight line stretching machine. The copper pipe output in unit area is far larger than that of a straight line stretching production manner. An acid pickling process is eliminated in the production process, and environment friendliness is facilitated.

Description

technical field [0001] The invention relates to the technical field of copper pipe production, in particular to a method and equipment for realizing continuous production of copper pipes. Background technique [0002] High-zinc brass in copper pipes refers to copper alloys with a zinc content greater than 30% in copper-zinc alloys. High-zinc brass pipes are one of the main products of copper and copper alloy pipes. High-zinc brass pipes are widely used for their high strength, high-quality corrosion resistance, product antibacterial properties, and excellent surface finish: bathroom, plumbing , lighting and ship condenser industries. The production process of high-zinc brass pipes is mainly: semi-continuous casting → hot extrusion → periodic two-roll cold rolling → multi-pass annealing and linear stretching. This process mainly has the following deficiencies: [0003] High-zinc brass is different from red copper and high-copper low-zinc brass. Due to the increase of zinc ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/08C21D9/08C22F1/08C22F1/02
CPCB21C37/08C21D9/08C22F1/08C22F1/02
Inventor 张汉明彭小军
Owner 佛山鑫信汇科技有限公司
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