CN107828944A - A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component - Google Patents
A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component Download PDFInfo
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- CN107828944A CN107828944A CN201711218864.0A CN201711218864A CN107828944A CN 107828944 A CN107828944 A CN 107828944A CN 201711218864 A CN201711218864 A CN 201711218864A CN 107828944 A CN107828944 A CN 107828944A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/002—Heat treatment of ferrous alloys containing Cr
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- Engineering & Computer Science (AREA)
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- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component, and (1) is put the workpiece in is preheated to 150 DEG C at twice in glowing furnace；(2) a point two level is heated to 968 DEG C of hardening heat and is incubated in glowing furnace；(3) workpiece is come out of the stove into air-blast quenching to 55 DEG C；(4) workpiece is entered to 175 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove twice.A described point two level in glowing furnace is heated to hardening heat and is incubated, and continues to be heated to 760 DEG C after workpiece preheating and is incubated 70min, is heated to 968 DEG C of hardening heat and is incubated 52min.The present invention significantly improves the service life and mechanical property of two edge of a knife parts (punch-pin, cavity plate), working parts of dies is obtained high rigidity, higher impact flexibility, wearability, prevents the initial failures such as excessive wear, deformation, brittle cracking.
Description
【Technical field】
The present invention relates to steel technical field of heat treatment, more particularly to a kind of heat treatment of chrome molybdenum bubbing steel precision component is quenched
Ignition technique.
【Background technology】
With the upgrading of China's manufacturing industry, requirement of some precision equipments to parts is more and more harsher, and home made materials exists
Some aspect of performances can not meet its requirement, have to using related advanced imported material, the particularly country such as Germany, Sweden
High purity steel, there is the fine qualities such as pure high crystal grain refinement even tissue, import volume is constantly increasing in recent years, but is heat-treated
It is horizontal incompatible therewith, it is difficult to play its performance, cause huge waste, some supply producers have to set special heat at home
Service Factory is handled, it is not only difficult to meet its personalized requirement, and cause cost greatly to rise.
ASSAB XW-10 are Sweden's trade mark, and its major alloy composition is 1.0%C 5.3%Cr 0.8%Mo0.8%V, class
U.S. AISI A2 are similar to, are a kind of high-toughness wear-resistant tool steel, its pure height, crystal grain refinement, even tissue, quenching degree is good,
Carbide is tiny to be evenly distributed, and quenching size distortion is small, has certain impact internal organs and preferable wearability, excellent anti-corrosion
Property, extremely strong ductility, the invulnerability of die point are preferable；Conventional hardness HRC56-HRC61, applied to abrasiveness plastic shaping
Mould, integral quenching gravity die mould, high speed blanking drift and stainless steel plate drift etc..
Some precision components use ASSAB XW-10 chrome molybdenum bubbing steels in semiconductor packaging device, except require hardness it is high,
Wearability is good, quenching size distortion is small, long lifespan reliability is high, it is also desirable to have certain impact internal organs and preferable wearability；
But chrome molybdenum bubbing steel alloy composition has a great influence to Technology for Heating Processing, cause Technology for Heating Processing complicated, be such as heat-treated it is improper not only
Hardly possible plays its premium properties, and quality is also difficult to control, easily scrapped in batches.
【The content of the invention】
In view of this, it is overcome the deficiencies in the prior art, the present invention is provided at a kind of heat of chrome molybdenum bubbing steel precision component
Manage quenching technical,
To achieve the above object, technical scheme is as follows：
A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component, comprises the following steps：(1) quenching is put the workpiece in
150 DEG C are preheated in stove at twice；(2) a point two level is heated to 968 DEG C of hardening heat and is incubated in glowing furnace；(3) by workpiece
Air-blast quenching come out of the stove to 55 DEG C；(4) workpiece is entered to 175 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove twice.
Further, point two level in glowing furnace is heated to hardening heat and is incubated, and continues to heat after workpiece preheating
To 760 DEG C and 70min is incubated, 968 DEG C of hardening heat is heated to and is incubated 52min.
Workpiece is come out of the stove and placed on support to 55 DEG C by described air-blast quenching that workpiece is come out of the stove, and air blower is opened, by workpiece
It is air-cooled to 55 DEG C.
It is described that workpiece enters to 175 DEG C of insulation tempering of tempering furnace twice, air cooling of coming out of the stove, when workpiece it is air-cooled to 55 DEG C when immediately
Enter tempering furnace and be heated to 175 DEG C to be tempered and be incubated 135min, natural air cooling of coming out of the stove；When workpiece is air-cooled to 55 DEG C second immediately
Enter tempering furnace and be heated to 175 DEG C to be tempered and be incubated 135min, natural air cooling of coming out of the stove is to room temperature.
The invention has the advantages that good quenching degree can be obtained, retained austenite almost all is decomposed, and carbide is thin
It is small and be evenly distributed, to quench size distortion small.Significantly improve the service life and mechanical property of two edge of a knife parts (punch-pin, cavity plate)
Can, working parts of dies is obtained high rigidity, higher impact flexibility, wearability, prevent excessive wear, deformation, brittle cracking
Etc. initial failure.The present invention it is simple to operate practical, there is higher engineering application value, its put goods on the market will produce it is aobvious
Write ground Social benefit and economic benefit.
【Brief description of the drawings】
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the quenching technical schematic flow sheet of the present invention.
Wherein, abscissa represents the time, and ordinate represents temperature.
【Embodiment】
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component, comprises the following steps：(1) quenching is put the workpiece in
150 DEG C are preheated in stove at twice；(2) a point two level is heated to 968 DEG C of hardening heat and is incubated in glowing furnace；(3) by workpiece
Air-blast quenching come out of the stove to 55 DEG C；(4) workpiece is entered to 175 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove twice.
Specific embodiment is as described below：
Referring to Fig. 1, average thickness be 32mm common chrome molybdenum bubbing steel precision punch-pin, hardness requirement HRC61
(1) a collection of thickness about 32mm workpiece is put into glowing furnace and preheated at twice, for the first time with less than 75 DEG C/h
Firing rate to 100 DEG C, second with the firing rate less than 115 DEG C/h to 150 DEG C；
(2) continue to be heated to 760 DEG C after workpiece preheating and be incubated 70min, be heated to 968 DEG C of hardening heat and be incubated
52min；
(3) workpiece is come out of the stove and placed on support, open air blower, workpiece is air-cooled to 55 DEG C；
(4) when workpiece it is air-cooled to 55 DEG C when enter tempering furnace immediately and be heated to 175 DEG C to be tempered and be incubated 135min, nature of coming out of the stove
Air cooling；
(5) enter tempering furnace for the second time immediately when workpiece is air-cooled to 50 DEG C -70 DEG C to be heated to 175 DEG C of tempering and be incubated
135min, natural air cooling of coming out of the stove is to room temperature；
(6) workpiece hardness is surveyed sample with hardometer, and splits workpiece polishing section, with crystalline phase group inside microexamination
Knit.
Technology for Heating Processing of the present invention using progressive solution, using double tempering, make to be uniformly heated, can obtain
Good quenching degree, retained austenite almost all are decomposed, carbide is tiny and is evenly distributed, to quench size distortion small；It is aobvious
Writing improves the service life and mechanical property of two edge of a knife parts (punch-pin, cavity plate), working parts of dies is obtained high rigidity, higher
Impact flexibility, wearability, prevent the initial failures such as excessive wear, deformation, brittle cracking.The present invention it is simple and easy, have compared with
High engineering application value, it, which puts goods on the market, will produce significantly Social benefit and economic benefit.It is described above, it is only this hair
Bright preferable embodiment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (3)
1. a kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component, it is characterised in that comprise the following steps：(1) by work
Part is put into glowing furnace is preheated to 150 DEG C at twice；(2) a point two level is heated to 968 DEG C of hardening heat and is incubated in glowing furnace；
(3) workpiece is come out of the stove into air-blast quenching to 55 DEG C；(4) workpiece is entered to 175 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove twice.
2. a kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component as claimed in claim 1, it is characterised in that described
A point two level in glowing furnace be heated to hardening heat and be incubated, continue to be heated to 760 DEG C and be incubated 70min after workpiece preheating,
It is heated to 968 DEG C of hardening heat and is incubated 52min.
3. a kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component as claimed in claim 1, it is characterised in that described
Workpiece enters to the insulation tempering of 175 DEG C of tempering furnace twice, air cooling of coming out of the stove, when workpiece it is air-cooled to 55 DEG C when immediately enter to be tempered stove heat
It is tempered to 175 DEG C and is incubated 135min, natural air cooling of coming out of the stove；Enter to be tempered stove heat for the second time immediately when workpiece is air-cooled to 55 DEG C
It is tempered to 175 DEG C and is incubated 135min, natural air cooling of coming out of the stove is to room temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711218864.0A CN107828944A (en) | 2017-11-28 | 2017-11-28 | A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711218864.0A CN107828944A (en) | 2017-11-28 | 2017-11-28 | A kind of heat treatment quenching process of chrome molybdenum bubbing steel precision component |
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| CN107828944A true CN107828944A (en) | 2018-03-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588371A (en) * | 2018-05-06 | 2018-09-28 | 黄石高校智源技术咨询服务有限公司 | A kind of accurate heat treatment quenching process of common chrome molybdenum bubbing steel precision component |
Citations (5)
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| CN1827825A (en) * | 2006-01-25 | 2006-09-06 | 周向儒 | Novel chrome steel high speed steel and heat treatment process thereof |
| CN101302599A (en) * | 2008-07-01 | 2008-11-12 | 上海大学 | Niobium microalloyed high strength hot work die steel and preparation thereof |
| CN103131929A (en) * | 2013-03-07 | 2013-06-05 | 江苏大学 | Preparation method of powder high-speed steel material |
| CN104099528A (en) * | 2014-07-08 | 2014-10-15 | 宁波市鄞州文昌金属制品有限公司 | Special-shaped roller and preparation method thereof |
| CN104498829A (en) * | 2014-12-12 | 2015-04-08 | 中国第一汽车股份有限公司 | Casting medium alloy steel for cold stamping mould of automobile |
-
2017
- 2017-11-28 CN CN201711218864.0A patent/CN107828944A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1827825A (en) * | 2006-01-25 | 2006-09-06 | 周向儒 | Novel chrome steel high speed steel and heat treatment process thereof |
| CN101302599A (en) * | 2008-07-01 | 2008-11-12 | 上海大学 | Niobium microalloyed high strength hot work die steel and preparation thereof |
| CN103131929A (en) * | 2013-03-07 | 2013-06-05 | 江苏大学 | Preparation method of powder high-speed steel material |
| CN104099528A (en) * | 2014-07-08 | 2014-10-15 | 宁波市鄞州文昌金属制品有限公司 | Special-shaped roller and preparation method thereof |
| CN104498829A (en) * | 2014-12-12 | 2015-04-08 | 中国第一汽车股份有限公司 | Casting medium alloy steel for cold stamping mould of automobile |
Non-Patent Citations (2)
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| 姚艳书 等: "《热处理实用技术丛书-工具钢及其热处理》", 31 March 2009, 辽宁科学技术出版社 * |
| 朱宗元 等: "热处理对Cr5Mo1V和ER53冷模钢性能影响的研究", 《上海金属》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588371A (en) * | 2018-05-06 | 2018-09-28 | 黄石高校智源技术咨询服务有限公司 | A kind of accurate heat treatment quenching process of common chrome molybdenum bubbing steel precision component |
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