Production process of copper-silver alloy profile

A copper-silver alloy and production process technology, applied in metal extrusion dies and other directions, can solve the problems of metal flow uniformity, limited metal flow effect, and increase production costs that cannot be fundamentally solved. Energy saving effect

Active Publication Date: 2017-01-11
金川文化发展(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the effect of changing the metal flow through the die sizing belt is very limited, it cannot fundamentally solve the technical problem of metal flow uniformity, and the use of multi-pass drawing deformation increases the production cycle and increases the production cost.

Method used

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  • Production process of copper-silver alloy profile
  • Production process of copper-silver alloy profile

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The production technology of a kind of copper-silver alloy profile of present embodiment 1 comprises the steps:

[0034] Upward continuous casting—continuous extrusion—drawing—slitting

[0035] The specific steps are:

[0036] 1. Upward continuous casting

[0037] Using high-purity cathode copper and pure silver as raw materials, the cathode copper is preheated and dried and then melted in the smelting device. The surface of the copper liquid is covered with charcoal and graphite flakes, and the copper rod is drawn up by a traction unit.

[0038] The silver content is added into the smelting furnace according to the ratio of 0.025%.

[0039] The composition of the upward continuous casting copper rod is as follows: Cu+Ag≥99.99%, O≤0.0005%.

[0040] The further setting is: the crystallizer outlet water temperature is controlled at 35°C-40°C, the temperature of the melting furnace is 1166°C-1170°C, covered with dried charcoal to ensure the reducing atmosphere of the me...

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Abstract

The invention relates to a production process of a copper-silver alloy profile. The production process comprises the following steps that (1) high-purity cathode copper and pure silver are used as raw materials, the high-purity cathode copper and the pure silver are molten in a melting device after being preheated and dried, and a copper rod is upwards pulled through a traction unit; (2) a copper-silver alloy profile blank is prepared through a continuous extrusion unit; (3) drawing is carried out; and (4) slitting is carried out. The copper-silver alloy profile produced through the process is high in purity, low in oxygen content and high in conductivity and surface quality, and the process is short in procedure and efficient and saves energy.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal processing, in particular to a production process of copper-silver alloy profiles. Background technique [0002] Special-shaped silver-copper bars are more and more widely used in modern industry. The motor commutator in the prior art is generally composed of silver-copper sheets and mica sheets, and the silver-copper sheets are punched and formed by special-shaped silver-copper bars. The copper bar is in the shape of a "knife" or a "wedge", that is, one end is large in the thickness direction and the other end is small. It has high requirements on conductivity, hardness and dimensional accuracy, and has a large width-to-thickness ratio. The metal fluidity during processing is poor. , production is more difficult. [0003] The traditional production method of special-shaped silver-copper bars is to produce thicker silver-copper billets first, then hot-rolled billets, multi-pass cold-roll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/00B21C25/02B22D11/14B22D11/16
CPCB21C25/02B21C37/00B22D11/004B22D11/145B22D11/16
Inventor 徐高磊
Owner 金川文化发展(江苏)有限公司
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