Calendering processing method of high-purity aluminum-magnesium alloy substrate for mechanical hard disk

An aluminum-magnesium alloy, rolling processing technology, applied in metal rolling and other directions, can solve problems such as increasing the difficulty of research and development

Inactive Publication Date: 2017-01-11
UNIV OF SCI & TECH LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Other countries and aluminum processing enterprises have invested a lot of research and development, but the difficulty of research and development has increased due to the high technical content, the need to have relevant and supporting facilities, and to adjust the process, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: High-purity aluminum-magnesium alloy ingot for hard disk Specifications: 960×250×3500mm.

[0024] The steps of a rolling processing method for a high-purity aluminum-magnesium alloy substrate for a mechanical hard disk are as follows:

[0025] a. Use conventional equipment and technology to mill the surface of the ingot, remove the thickness of 15mm, put the ingot after milling into the vertical push high temperature soaking furnace for annealing and heat preservation treatment, the vertical push high temperature soaking furnace up and down Six thermocouples are arranged on the left, right and middle, and the temperature is raised to 520°C at a heating rate of 10°C / min. The surface temperature of the upper, lower, left, and right sides of the ingot is within the deviation range below 2°C, and the temperature is kept for 5 hours;

[0026] b. Turn on the emulsion system of the rolling mill, keep the temperature of the rolls and emulsion at 80°C, use the auto...

Embodiment 2

[0030] Embodiment 2: High-purity aluminum-magnesium alloy ingot for hard disk Specification: 1500×240×3000mm.

[0031] The steps of a rolling processing method for a high-purity aluminum-magnesium alloy substrate for a mechanical hard disk are as follows:

[0032] a. Slab ingot face milling and pretreatment, use conventional equipment and technology to carry out face milling on the slab ingot, remove the amount of 25mm, put the slab ingot after face milling into the vertical push type high temperature soaking furnace for annealing and heat preservation treatment, immediately The push-type high-temperature soaking furnace is equipped with 4 thermocouples in the upper, lower, left, right and middle, and the temperature is raised to 580 °C at a heating rate of 20 °C / min. The surface temperature of the upper, lower, left, and right sides of the ingot is within the deviation range below 5 °C. Hour;

[0033]b. Ingot hot calendering, turn on the emulsion system of the rolling mill, ...

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Abstract

The invention discloses a rolling processing method of a high-purity aluminum-magnesium alloy substrate for a mechanical hard disk. After rolling an aluminum-magnesium alloy plate ingot for a mechanical hard disk, a high-purity aluminum-magnesium alloy plate meeting processing requirements can be obtained. The steps of the method include: face milling and pretreatment of a plate ingot; hot rolling of a plate ingot; warm rolling of a plate ingot; cold rolling of a plate ingot; micro-calendering of a plate ingot. The present invention utilizes advanced hot, warm and cold rolling units, and advanced micro-rolling technical means to optimize the rolling process, control rolling defects, and combine the MARC computer simulation technology of aluminum alloy deformation to obtain a thickness of 1.775mm and a thickness difference of The high-precision plates for discs controlled within the range of ﹣0.01~﹢0.02 form a complete set of rolling process and technical standards for aluminum-magnesium alloy plates for hard disk magnetic storage.

Description

technical field [0001] The invention belongs to the technical field of material processing and control, and in particular relates to a rolling processing method of a high-purity aluminum-magnesium alloy substrate for a mechanical hard disk. Background technique [0002] Magnetic electronic materials and devices are a popular direction for the development and application of new international materials. Combining magnetic storage technology and aluminum-based materials to develop aluminum-based electronic materials for magnetic storage is the basis for computer storage and the development of related materials at present and in the future. premise. Aluminum substrates for hard disks are an important development direction of aluminum-based magnetic storage materials. The storage function in hard disks is mainly realized by the disks, and the performance of the disks depends on the development of the two main preparation technologies of substrates and magnetic coatings. Level, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/24B21B1/26B21B1/28
CPCB21B1/22B21B3/00B21B2001/221B21B2001/225B21B2001/228
Inventor 李英虹郭菁滕莹雪彭兴东王洪斌刘雄伟
Owner UNIV OF SCI & TECH LIAONING
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