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A preparation method of large-size 5n high-purity aluminum target

A large-scale, high-purity technology, applied in manufacturing tools, metal rolling, metal rolling, etc., can solve the problems of sheet grain difference, many production processes, low yield, etc., to achieve short production cycle and production efficiency. High and high yield effect

Active Publication Date: 2021-06-01
CHINALCO SOUTHEAST MATERIALS (FUJIAN) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this type of production method can achieve the uniformity of grains along the width direction of the same target material, it not only has many production processes, but also takes a long time, low efficiency, and low yield, and it is more likely to cause the same batch of different plates. Grain Variation

Method used

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with embodiment.

[0014] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0015] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0016] This embo...

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Abstract

The invention relates to a method for preparing a large-size 5N high-purity aluminum target. When the large-size 5N high-purity aluminum is rolled to a certain thickness, the temperature T1~Tn of the roll is detected every 100~300mm along the width direction, or Detect the temperature of the 5N high-purity aluminum target at every interval (100~300mm) along the width direction, and then set a specific work roll cooling curve according to the temperature curve, so that the rolling temperature can be guaranteed during the subsequent rolling pass The uniformity of the large-size 5N high-purity aluminum target is guaranteed to be uniform in the width direction. The large-sized 5N high-purity aluminum target prepared by the invention has good crystal grain uniformity, simple process, short production cycle, high production efficiency and high yield, and has advantages in production and market competition.

Description

technical field [0001] The invention relates to the technical field of nonferrous metals, in particular to a method for preparing a large-size 5N high-purity aluminum target. Background technique [0002] For the production of G5.0 or G5.5 generation line targets, if the target width is about 1580mm, it is necessary to purchase target ingots with a width of more than 1580mm. However, when formed by ordinary rolling process, since the ingot width is larger than the conventional width, it is difficult to meet the requirement of grain uniformity in the transverse direction. This is mainly due to the fact that there is a temperature difference between the middle and the edge of the ingot during the rolling process, resulting in a difference in the actual recovery process, which in turn causes the problem of uneven grains at the edge and the middle. [0003] In order to solve the above technical difficulties, generally speaking, an intermediate tempering process is adopted. Tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B3/00B21B38/00B21B37/74
CPCB21B3/00B21B37/74B21B38/006B21B2003/001B21B2261/20
Inventor 刘华春冉继龙詹开严郑自链刘旺石亚雨孙连勇
Owner CHINALCO SOUTHEAST MATERIALS (FUJIAN) TECH CO LTD
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