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Special-shaped copper strip production method

A production method and special-shaped technology, applied in the field of non-ferrous metal processing, can solve the problems of peeling, low cost, delamination of special-shaped copper strip products, etc.

Pending Publication Date: 2021-09-07
余波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is low in cost, but the product quality still cannot meet the market demand. This is because the special-shaped strip blanks prepared by continuous extrusion cannot completely avoid the phenomenon that there will be air bubbles inside the strip blanks, so there are delamination, fracture and cracking in the finished special-shaped copper strips. risk of peeling

Method used

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Experimental program
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Effect test

Embodiment 1

[0040] A production method of special-shaped copper strip, comprising the steps of:

[0041] Strip stage: smelting→continuous casting→hot continuous rolling→solution and surface reduction treatment→special-shaped strip→winding.

[0042] Finished product stage: special-shaped strip → continuous cold rolling → online continuous annealing → finishing rolling → edge trimming → surface grinding → finished product coiling and packaging.

[0043] The specific process of each stage is as follows:

[0044] Melting: 30 to 150 tons of gas-fired reverberatory furnace or electric furnace are used to melt raw materials, blend alloys, and refine, and each time can provide no less than 30 tons of copper water for subsequent continuous casting.

[0045] Continuous casting: adopt wheel-belt continuous casting equipment, which is a commonly used equipment in this field, the difference is that the shape and size of the wheel groove of the crystallization wheel used inside it must match the shape...

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Abstract

The invention relates to a special-shaped copper strip production method. The special-shaped copper strip production method specifically comprises the following steps of: manufacturing a special-shaped strip blank by adopting a continuous casting and hot continuous rolling process, and continuously manufacturing the strip blank into a special-shaped copper strip finished product at one time in a cold continuous rolling, on-line annealing and finish rolling manner. The special-shaped copper strip production method is simple in process, high in production efficiency, good in finished product quality, energy-saving, low in carbon emission and low in manufacturing cost. And in addition, as a continuous rolling means is adopted in the production process, the technological process is shortened, the automation degree is high, and intelligent manufacturing can be achieved conveniently.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal processing, in particular to a production method of a special-shaped copper strip. Background technique [0002] Special-shaped copper strips are mainly used for lead frames of plastic-encapsulated semiconductor components and flexible connection conductors for new energy vehicles. According to its use characteristics, the main requirements are as follows: it has high electrical and thermal conductivity, and it should have good strength, hardness, softening resistance, electroplating performance, brazing and plastic sealing performance. At present, the methods of producing special-shaped copper strips at home and abroad mainly include the following: [0003] (1) Milling + rolling method: In this method, the high-precision flat strip of the same material is used as the base material, and the excess part is removed by mechanical milling, and then rolled to form the final product. The spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/02C22F1/08C22C9/00B22D11/06
CPCB21C37/02C22F1/08C22C9/00B22D11/004B22D11/0611
Inventor 余波
Owner 余波
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