A production process of copper strip for electric vacuum device

A production process, electric vacuum technology, applied in the production process field of copper strips for electric vacuum devices, can solve the problems of large investment scale, low production efficiency, limited product length, etc., and achieve the effect of short process and energy saving

Active Publication Date: 2018-09-28
浙江力博实业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above-mentioned traditional oxygen-free copper strip production process for electric vacuum devices has disadvantages such as large investment scale, low yield, limited product length, low production efficiency, high energy consumption, and unstable oxygen content of the product.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The production process of the copper strip for the electric vacuum device in Example 1 is as follows: upward continuous casting—continuous extrusion—face milling—cold rolling—annealing—re-cold rolling—cleaning and passivation—slitting.

[0030] The specific steps are:

[0031] (1) Upward continuous casting

[0032] Using grade A cathode copper as raw material, 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 the traction unit.

[0033] The composition of the upward continuous casting copper rod is: Cu+Ag≥99.99%, O≤0.0005%.

[0034] The smelting device includes a crystallizer, a melting furnace and a holding furnace. The further settings are: the temperature of the crystallizer outlet water is controlled at 30°C, the temperature of the melting furnace is 1165°C, and it is covered with dried charcoal to ensure the reducing atmo...

Embodiment 2

[0051] The production process of the copper strip for electric vacuum devices in Example 2 is: continuous extrusion—cold rolling—annealing—re-cold rolling—cleaning and passivation—slitting. Lacking the step of upward continuous casting, other steps are the same as in Example 1.

Embodiment 3

[0053] The production process of the copper strip for the electric vacuum device in this embodiment 3 is: continuous casting-cold rolling-annealing-re-cold rolling-cleaning passivation-slitting, lacking the step of continuous extrusion, other steps are the same as in embodiment 1 .

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Abstract

The invention relates to a production technology of copper strips for electric vacuum devices. The production technology comprises steps as follows: (1) A-class cathode copper is preheated and dried and then is smelted in a smelting device, copper rods are drawn upwards by the aid of a traction unit, and oxygen-free copper rods are obtained; (2) copper strip bases are produced by a continuous extrusion unit; (3) the copper strip bases are rolled by a cold rolling unit; (4) cold-rolled copper strips are annealed by bright annealing equipment; (5) the copper strips are cold-rolled again by a reversible hydraulic cold rolling unit; (6) the cold-rolled copper strips are cleaned and inactivated and are subjected to degreasing, polishing, fine polishing and inactivation; (7) the copper strips are cut by cutting equipment. The copper strips produced with the technology have the advantages of low oxygen content, excellent welding performance, high plastic processing property, high electric conducting property, high surface quality and the like, and the technology has a short process and is efficient and energy-saving.

Description

technical field [0001] The invention relates to the technical field of processing nonferrous metals, in particular to a production process of copper strips for electric vacuum devices. Background technique [0002] Electric vacuum devices are widely used in military, industrial and daily life fields, such as radar communication systems, electrical equipment, imaging devices and detection devices. Electric vacuum device materials are the material basis for the development of electric vacuum device technology. Whether the technology and indicators of electric vacuum devices are advanced and whether the quality of products can be guaranteed, in addition to the design and manufacturing process, the performance of materials is also an important factor, and often decisive factor. [0003] Copper and copper alloys have the characteristics of high electrical conductivity, thermal conductivity, good ductility, and easy processing. They also have excellent vacuum sealing performance,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C37/02
CPCB21C37/02
Inventor 徐高磊
Owner 浙江力博实业股份有限公司
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