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Manufacturing and processing method of D-type copper pipe

A processing method, D-type technology, applied in the direction of manufacturing tools, metal processing equipment, metal extrusion control equipment, etc., can solve problems such as difficult production

Active Publication Date: 2008-08-13
中铝洛阳铜加工有限公司
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Problems solved by technology

[0003] The invention solves the technical problems that the current D-type copper pipes in my country belong to incompletely symmetrical special-shaped pipes, have strict requirements on various technical indicators, are difficult to produce, and all rely on imports from abroad; as busbar materials for high-voltage switch cabinets, D-type copper pipe is a copper and copper alloy pipe with a "D" cross-sectional area.

Method used

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  • Manufacturing and processing method of D-type copper pipe

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Embodiment Construction

[0040] The processing and manufacturing process flow of the present invention is: melting and casting, heating, extrusion, finishing, pickling, inspection, head making, stretching, straightening, head cutting, cleaning, finishing, inspection, storage;

[0041]The specific processing technology is: 1. Melting and casting: melting and casting copper ingots by melting furnace; 2. Heating: heating ingots by heating furnace; The billet is subjected to transitional extrusion, directly extruded into a D-shaped tube billet, and made into a D-shaped tube billet; replacing the existing round extruded tube billet; wherein: the front end of the perforating needle is D-shaped, and the rear end is round , its diameter is consistent with the radius of the front end circle, and the front end of the piercing needle has an arc chamfer. , to increase the stability of the perforating needle; the arcs of the sizing section and the outlet section of the extrusion die are concentric with the outer c...

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Abstract

The invention discloses a producing method for a D-shaped copper tube, comprising: fusion casting, heating, extrusion pressing, final finishing, acid washing, examining, head making, drafting, straightening, cropping, washing, final finishing, examining, and storing; wherein the extrusion pressing process and drafting process are: replacing extrusion pressing and drafting process in the processing of circular copper tubes in prior art with extrusion pressing and drafting of D-shaped tubes with analogical transitivity and termination product drafting. D-shaped tubes are not-exclusively symmetrical tubes with strict technical index, and the production thereof is difficult. The invented method solves the technique problem in prior art and the D-shaped tubes are not dependent on importation.

Description

Technical field: [0001] The invention relates to a nonferrous metal processing method, in particular to a D-shaped copper pipe processing method in special-shaped pipes. Background technique: [0002] Copper materials are widely used in the electric power and communication industries. The common flat copper bus bar has been saturated in the low-end market, but the copper materials needed in the high-end market of the electric power industry mainly rely on imports, among which D-type tubes are used as high-voltage switches. The busbar material used for electrical conduction in the cabinet is mainly used for large-scale power transmission and transformation equipment. The technical indicators are strict, and because the D-type pipe is an incompletely symmetrical special-shaped pipe, it is difficult to produce and all rely on imports from abroad; D-type copper The tube is used for high-voltage power transmission and transformation, and the high-voltage power grid has the advant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/06B21C23/02B21C25/02B21C26/00B21C31/00B21C1/22B21C3/02B21C3/16
Inventor 王欣太郭慧稳王华星曹利赵万花巴彬杨海丽费波丁顺德苏东东刘海涛杨胜泉孙立新陈耀伟
Owner 中铝洛阳铜加工有限公司
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