Method for rolling industrial pure iron

A technology of industrial pure iron and rolls, applied in the rolling field of industrial pure iron, can solve the problems of high economic cost, unfavorable environmental protection concept, complex process and other problems, and achieve the effect of improving magnetic properties

Inactive Publication Date: 2010-04-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the process of preparing {100} texture is complicated, the economic cost is high, and some atmospheres that reduce the oxygen content are not conducive to the concept of environmental protection.

Method used

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  • Method for rolling industrial pure iron
  • Method for rolling industrial pure iron
  • Method for rolling industrial pure iron

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The first step is to use industrial pure iron to keep warm in the air at 900°C for 5 hours before asynchronous rolling, and then cool with the furnace to remove the surface oxide scale of the sample;

[0018] The second step is to use wire cutting to obtain the material to be rolled with a thickness of 20mm. Finally, the upper and lower rolls are used for asynchronous rolling.

[0019] Multiple passes of cold rolling are adopted, and in this embodiment, the rolling reduction in each pass is 0.2 mm, and a total of 50 passes of rolling are performed. The final rolling reduction rate is 50%, and the final thickness of the sample is 10mm. Then adopt X-ray diffractometer to test its texture on the upper rolling surface of the sample, and the test results are as follows: figure 1 shown. The results show that the texture component of the sample is {100} texture.

Embodiment 2

[0021] The first step is to use industrial pure iron to keep warm in the air at 900°C for 5 hours before asynchronous rolling, and then cool with the furnace to remove the surface oxide scale of the sample;

[0022] The second step is to use wire cutting to obtain the material to be rolled with a thickness of 20mm. Finally, the upper and lower rolls are used for asynchronous rolling.

[0023] Multiple passes of cold rolling are adopted, and the rolling reduction in each pass is 0.2 mm in this embodiment, and 99 passes of rolling are performed in total. The final rolling reduction rate is 90%, and the final thickness of the sample is 2mm. Then adopt X-ray diffractometer to test its texture on the upper rolling surface of the sample, and the test results are as follows: figure 2 shown. The results show that the texture component of the sample is {100} texture, and its strength is greater than that of industrial pure iron with a rolling reduction rate of 50%.

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Abstract

The invention discloses a method for rolling industrial pure iron, belonging to the technical field of the metal rolling. The method comprises the following steps: removing an oxide layer on the surface of the material to be rolled after the material to be rolled is heat insulated and cooled; cutting the material to be rolled with thickness of 20mm by utilizing linear cutting; and carrying out equidirectional asynchronous multi-pass rolling on the cut material at a normal temperature to manufacture rolled products with {100} textures. The rolled products manufactured by the invention have the {100} textures, thus the magnetic performance of the material is improved, and the process of the invention is simple and is easy to be realized.

Description

technical field [0001] The invention relates to a method in the technical field of metal rolling, in particular to a method for rolling industrial pure iron. Background technique [0002] Industrial pure iron has a body-centered cubic structure and is a typical soft magnetic material. However, the magnetic properties of industrial pure iron are anisotropic, and its texture orientation has a significant impact on its magnetic properties. The structure of industrial pure iron is ferrite with a body-centered cubic structure, its easiest magnetization direction is <100>, and the hardest magnetization direction is <111>. Therefore, if a texture containing <100> orientation is obtained, the magnetic properties of industrial pure iron will be improved, and it will also be beneficial to the application of iron-based soft magnetic materials in magnetic properties. Therefore, the ideal texture of industrial pure iron with body-centered cubic is {100} crystal plane ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D7/00
Inventor 丁毅蒋建华单爱党
Owner SHANGHAI JIAO TONG UNIV
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