CN103789518A - Decarburization preventing process of steel wire ropes in quenching - Google Patents
Decarburization preventing process of steel wire ropes in quenching Download PDFInfo
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- CN103789518A CN103789518A CN201210429524.3A CN201210429524A CN103789518A CN 103789518 A CN103789518 A CN 103789518A CN 201210429524 A CN201210429524 A CN 201210429524A CN 103789518 A CN103789518 A CN 103789518A
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- quenching
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Abstract
A decarburization preventing process of steel wire ropes in quenching. In a quenching process of steel wire ropes, when a quenching furnace instrument indicates 750-900 DEG C, nitrogen or carbon dioxide gas is injected into the furnace immediately, and the injection time is 25-40 min; when the steel wire ropes are taken out from the quenching furnace, the quenching hardness and the hardenability of the steel wire ropes are maintained. According to the invention, nitrogen or carbon dioxide gas is injected into the quenching furnace, which enlarges the austenite zone of the steel, maintains the quenching hardness and the hardenability of the steel wire ropes after the steel wire ropes are taken out from the quenching furnace, and the steel wire ropes are easy to mill on a steel wire mill.
Description
Technical field:
The invention belongs to a kind of smelting technology, particularly the anti-decarbonization process of a kind of wireline in the time quenching.
Background technology:
At present, when wireline heating, often there will be decarburization phenomenon, the carbon in wireline is burnt the phenomenon that wireline surface carbon content is reduced.Follow the normal generation of oxidation decarburization, oxidizing atmosphere is also the atmosphere of decarburization, H
2though be that reducing atmosphere is also decarburizing atmosphere.In general steel, carbon content is higher, and decarburization is more serious.Decline because decarburization makes steel piece surface carbon content, cause wireline physical strength to decline, particularly the decrease of fatigue strength of wireline, abrasion resistance properties reduce, the fragility of quenching reduces, cause after quenching firmly anti-not soft, just as the phenomenon of deep-fried twisted dough sticks.
Summary of the invention:
The object of this invention is to provide the anti-decarbonization process of a kind of wireline in the time quenching, this technique can effectively improve the carbon of wireline in quenching process and run off, and improves the hardness of wireline and the fragility of quenching.
As above design, technical scheme of the present invention is: the anti-decarbonization process of a kind of wireline in the time quenching, it is characterized in that: at wireline in quenching process, in the time that quenching furnance instrument is indicated 750-900 ℃, in stove, discharge nitrogen or carbon dioxide gas immediately, discharge time 25-40 minute, wireline just can keep quenching hardness and the hardening capacity of wireline after coming out of the stove and quenching.
The present invention is applied to nitrogen or carbon dioxide gas in quenching furnance, can expand the austenitic area of steel, after wireline being come out of the stove quench, just can keep quenching hardness and the hardening capacity of wireline, just can be easy to fragmentation on steel wire pulverizer.
Embodiment:
The anti-decarbonization process of a kind of wireline in the time quenching, at wireline in quenching process, in the time that quenching furnance instrument is indicated 750 ℃, in stove, discharge nitrogen or carbon dioxide gas immediately, discharge time 25-40 minute, wireline just can keep quenching hardness and the hardening capacity of wireline after coming out of the stove and quenching, just can be easy to fragmentation on steel wire pulverizer.
Claims (1)
1. a wireline anti-decarbonization process in the time quenching, it is characterized in that: wireline is in quenching process, in the time that quenching furnance instrument is indicated 750-900 ℃, in stove, discharge nitrogen or carbon dioxide gas immediately, discharge time 25-40 minute, wireline just can keep quenching hardness and the hardening capacity of wireline after coming out of the stove and quenching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429524.3A CN103789518A (en) | 2012-11-01 | 2012-11-01 | Decarburization preventing process of steel wire ropes in quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210429524.3A CN103789518A (en) | 2012-11-01 | 2012-11-01 | Decarburization preventing process of steel wire ropes in quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103789518A true CN103789518A (en) | 2014-05-14 |
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ID=50665569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210429524.3A Pending CN103789518A (en) | 2012-11-01 | 2012-11-01 | Decarburization preventing process of steel wire ropes in quenching |
Country Status (1)
| Country | Link |
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| CN (1) | CN103789518A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760653A (en) * | 2019-11-26 | 2020-02-07 | 宝钢特钢韶关有限公司 | Control method for preventing bearing steel from decarbonizing |
-
2012
- 2012-11-01 CN CN201210429524.3A patent/CN103789518A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110760653A (en) * | 2019-11-26 | 2020-02-07 | 宝钢特钢韶关有限公司 | Control method for preventing bearing steel from decarbonizing |
| CN110760653B (en) * | 2019-11-26 | 2021-04-16 | 宝钢特钢韶关有限公司 | Control method for preventing bearing steel from decarbonizing |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |