Forging processing technique for Fe-Si-B magnetic material

A magnetic material and processing technology, applied in the field of Fe-Si-B magnetic material forging and heating, can solve the problems of alloy ingot fracture and inability to forge, etc.

Active Publication Date: 2013-11-27
度测(上海)科技服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because heating it with the conventional forging heating process will cau...

Method used

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  • Forging processing technique for Fe-Si-B magnetic material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A forging process of Fe-Si-B magnetic material, including the following steps:

[0021] (1) Put the Fe-Si-B magnetic material blank into the furnace at room temperature;

[0022] (2) Slowly heat to 610℃, with a heating rate of 100℃ / h, keep at 610℃ for 30 minutes;

[0023] (3) Continue the second stage of heating, heating from 610°C to 720°C within 30 minutes, and keep it at 720°C for 40 minutes;

[0024] (4) Continue the third stage of heating, heating from 720°C to 820°C within 60 minutes, and keep it at 820°C for 40 minutes;

[0025] (5) Continue the fourth stage of heating, heating from 820°C to 920°C within 90 minutes, and keep it at 920°C for 40 minutes;

[0026] (6) Continue the fifth stage of heating, heating from 920°C to 1080°C at the top temperature within 180 minutes, and keep the temperature at the top temperature for 120 minutes;

[0027] (7) At the beginning of forging, the initial forging temperature is 1050°C, and the final forging temperature is 900°C. The relative...

Embodiment 2

[0029] A forging process of Fe-Si-B magnetic material, including the following steps:

[0030] (1) Put the Fe-Si-B magnetic material blank into the furnace at room temperature;

[0031] (2) Slowly heat to 610°C, the heating rate is 80°C / h, and keep at 610°C for 40 minutes;

[0032] (3) Continue the second stage of heating, heating from 610°C to 720°C within 40 minutes, and keeping it at 720°C for 30 minutes;

[0033] (4) Continue the third stage of heating, heating from 720°C to 820°C within 90 minutes, and keeping it at 820°C for 30 minutes;

[0034] (5) Continue the fourth stage of heating, heating from 820°C to 920°C within 120 minutes, and keeping it at 920°C for 40 minutes;

[0035] (6) Continue the fifth stage of heating, heating from 920°C to 1080°C at the top temperature within 120 minutes, and keeping the temperature at the top temperature for 180 minutes;

[0036] (7) At the beginning of forging, the initial forging temperature is 1040°C, and the final forging temperature is 900...

Embodiment 3

[0038] A forging process of Fe-Si-B magnetic material, including the following steps:

[0039] (1) Put the Fe-Si-B magnetic material blank into the furnace at room temperature;

[0040] (2) Slowly heat to 610°C with a heating rate of 150°C / h, and keep it at 610°C for 35 minutes;

[0041] (3) Continue the second stage of heating, heating from 610°C to 720°C within 35 minutes, and keeping it at 720°C for 35 minutes;

[0042] (4) Continue the third stage of heating, heating from 720°C to 820°C within 80 minutes, and keeping it at 820°C for 35 minutes;

[0043] (5) Continue the fourth stage heating, heating from 820°C to 920°C within 100 minutes, and keep it at 920°C for 30 minutes;

[0044] (6) Continue the fifth stage of heating, heating from 920°C to 1080°C at the top temperature within 150 minutes, and keep the temperature at the top temperature for 160 minutes;

[0045] (7) At the beginning of forging, the initial forging temperature is 1060°C, and the final forging temperature is 900°C....

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Abstract

The invention relates to a forging processing technique for a Fe-Si-B magnetic material. Fe-Si-B magnetic material blank is fed into a furnace at room temperature, slowly heated to 610 DEG C, kept warm, heated to 720 DEG again, subjected to warm keeping, then heated to 820 DGC C, kept warm, heated to 920 again, subjected to warm keeping, heated to the peak temperature of 1080 DEG C, subjected to warm keeping and forged. According to the invention, through heating pre-processing and reasonable heating processing parameters, the Fe-Si-B magnetic material can be prevented from fracturing when being heated before forging, so that the Fe-Si-B magnetic material can be processed and produced through a forging technology, and the problem that the conventional Fe-Si-B magnetic material fractures when being forged and heated directly and can not be produced through forging is solved.

Description

Technical field [0001] The invention relates to a forging process of Fe-Si-B magnetic material, and belongs to the technical field of Fe-Si-B magnetic material forging and heating. Background technique [0002] Fe-Si-B series magnetic materials are favored for their high saturation magnetic induction and low coercivity. Nowadays, new technology is mainly used to prepare alloy ribbons, and the rapid solidification technology is used to prepare alloy ribbons. The disadvantage of this preparation process is that the size of the ribbon is affected. Restrictions, bandwidth and thickness are restricted, production costs are higher than traditional processes, and production efficiency is lower. [0003] The chemical composition (mass fraction, %) of Fe-Si-B magnetic materials is: 4-8Si, 1-4B, and the rest is Fe. Due to the high brittleness and low plasticity of this alloy, there are no reports of using traditional forging processes for production. Because it is heated by the conventiona...

Claims

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Application Information

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IPC IPC(8): C21D8/12
Inventor 郭洪卫刘彦平李智孙宗辉王茂周文书贤金文见
Owner 度测(上海)科技服务中心
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