CN104846326A - Steel boronizing salt bath heat treatment process - Google Patents
Steel boronizing salt bath heat treatment process Download PDFInfo
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- CN104846326A CN104846326A CN201510178993.6A CN201510178993A CN104846326A CN 104846326 A CN104846326 A CN 104846326A CN 201510178993 A CN201510178993 A CN 201510178993A CN 104846326 A CN104846326 A CN 104846326A
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- steel
- salt bath
- heat treatment
- boronizing
- treatment process
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Abstract
The invention relates to a steel boronizing salt bath heat treatment process. For achieving performance requirements of steel surface wear resistance and overall impact resistance, an organization structure with a hard surface and a tough core is required. The heat treatment process mainly comprises carrying out heat preservation on steel for 6 h at the temperature of 850 DEG C and then carrying out boronization treatment by a boronizing agent, and is characterized in that heating and heat preservation are performed in a salt bath.
Description
Art:
Patent of the present invention relates to a kind of salt-bath heat treatment technology of steel boronising
Background technology:
Realize the performance requriements of steel surface abrasion resistance and overall anti-impact, it needs to have the tough weave construction of table hard-core.Boronising is mainly by the promoting agent of boracic atom, heating decomposites activated boron atoms later, utilize concentration gradient that boron atom is spread inwards from workpiece surface, in workpiece surface certain limit, form boride layer, improve hardness, the wear-resisting and solidity to corrosion of workpiece surface.But boride layer is at high temperature easily oxidized to be caused significantly thinning, be about 1/2 ~ 1/3 of whole borided layer depth.
Patent of the present invention solves the technical scheme that its technical problem adopts:
At 850 DEG C, being incubated 6h, to carry out Bononizing pretreatment to steel the most suitable.Heating and insulation are all carried out in salt bath.Boride layer top after tough thermal treatment is carried out in experiment surface in salt bath covers the oxide thin layer thing of 5 μm of having an appointment.Boride layer thinning phenomenon at high temperature obtains effective control.
Claims (1)
1. a patent of invention, relates to and at 850 DEG C, is incubated 6h carries out Bononizing pretreatment to steel, and heating and insulation are all carried out in salt bath.Boride layer thinning phenomenon at high temperature obtains effective control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510178993.6A CN104846326A (en) | 2015-04-10 | 2015-04-10 | Steel boronizing salt bath heat treatment process |
Applications Claiming Priority (1)
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CN201510178993.6A CN104846326A (en) | 2015-04-10 | 2015-04-10 | Steel boronizing salt bath heat treatment process |
Publications (1)
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CN104846326A true CN104846326A (en) | 2015-08-19 |
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Family Applications (1)
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CN201510178993.6A Pending CN104846326A (en) | 2015-04-10 | 2015-04-10 | Steel boronizing salt bath heat treatment process |
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CN (1) | CN104846326A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065689A (en) * | 1991-04-06 | 1992-10-28 | 武汉水利电力学院 | The boriding process of steel surface |
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2015
- 2015-04-10 CN CN201510178993.6A patent/CN104846326A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1065689A (en) * | 1991-04-06 | 1992-10-28 | 武汉水利电力学院 | The boriding process of steel surface |
Non-Patent Citations (1)
Title |
---|
赵玉凤: "65Mn钢表硬心韧处理工艺及其组织和性能的研究", 《江苏大学2013年硕士论文》 * |
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Application publication date: 20150819 |
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WD01 | Invention patent application deemed withdrawn after publication |