Production process for red copper rolled copper foil without rolling needle hole

A rolling copper foil and production process technology, which is applied in the production process field of red copper rolled copper foil, can solve the problems of grain collapse, less than one grain size, and high production environment requirements, so as to achieve small lattice distortion and prevent Low mechanical properties and uniform grain crystallization effect

Active Publication Date: 2014-04-16
菏泽广源铜带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the production of red copper rolled copper foil is much more complicated than that of electrolytic copper foil, especially when the thickness of the copper foil is below 0.025mm, the thickness of the copper foil is less than the size of a grain
According to the traditional process, if the rolled copper foil is to be rolled to a thinner thickness during production, the softer the incoming material, the better. The degree of grain uniformity is different, and it is easy to cause grain collapse and pinholes when the processing rate is large; the requirements for the production environment of red copper rolled copper foil are relatively high, especially the rolling oil that directly acts on the surface of the strip, such as rolling oil containing Particles exceeding 3 μm may cause penetrating pinholes on the surface of the copper foil, causing the foil to be scrapped if it does not meet the post-processing requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Brand: C10200, the thickness of the incoming material in the annealed and recrystallized state before rolling is 0.1mm, the width is 250mm, and the hardness is 68HV. After observing the metallographic structure, no texture phenomenon is found; after rolling by a four-high rolling mill, the pass distribution is as follows: 0.1→ 0.04→0.022→0.014→0.010 (in mm), the filtering grade of rolling oil for rolling is 3μm, and there is no pinhole defect in the finished product.

Embodiment 2

[0012] Brand: C11000, the thickness of the incoming material in the annealed and recrystallized state before rolling is 0.15mm, the width is 400mm, and the hardness is 72HV. After observing the metallographic structure, no texture phenomenon is found; after rolling by a four-roll mill, the pass distribution is as follows: 0.15→ 0.07→0.04→0.025→0.020→0.018 (in mm), the filtering grade of rolling oil for rolling is 1μm, and there is no pinhole defect in the finished product.

Embodiment 3

[0014] Brand: C11000, the thickness of the incoming material in the annealed and recrystallized state before rolling is 0.12mm, the width is 450mm, and the hardness is 75HV. After observing the metallographic structure, no texture phenomenon is found; after rolling by a four-high rolling mill, the pass distribution is as follows: 0.12→ 0.06→0.035→0.022→0.018→0.015 (in mm), the rolling oil filter grade for rolling is 1μm, and there is no pinhole defect in the finished product.

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Abstract

The invention provides a production process for a red copper rolled copper foil without a rolling needle hole, which relates to the technical field of nonferrous metal material production and is characterized in that finished products have the final rolling incoming Vickers hardness being 65HV to 85HV and are in an annealing state without a texture phenomenon, the processing rate of each time is 60 percent at the maximum level and 6 percent at the minimum level, the total processing rate does not exceed 90 percent, and the filtering precision of rolling oil used for rolling is not higher than 3mum. The production process has the advantages that the design is novel, the production process is advanced, the production is carried out according to the process, and good product quality can be ensured.

Description

Technical field [0001] The invention relates to the technical field of production of non-ferrous metal materials, in particular to a production process of red copper rolled copper foil without rolling pinholes. Background technique [0002] Electronic grade copper foil with a general thickness of 5μm-105μm is one of the basic materials of the electronics industry. With the rapid development of the electronic information industry and the improvement of raw material requirements, the use of copper rolled copper foil is increasing, and the products are widely used in industrial applications. Calculators, communication equipment, QA equipment, lithium-ion batteries, consumer televisions, video recorders, CD players, copiers, telephones, heating and cooling air conditioners, automotive electronic components, game consoles, etc. The demand for rolled copper foil in domestic and foreign markets is increasing day by day. [0003] However, the production of red copper rolled copper ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/40C22F1/08
Inventor 冯天杰韩新俊刘洪勤常保平彭作华徐继玲于连生
Owner 菏泽广源铜带有限公司
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