CN107723420A - A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component - Google Patents
A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component Download PDFInfo
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- CN107723420A CN107723420A CN201711215666.9A CN201711215666A CN107723420A CN 107723420 A CN107723420 A CN 107723420A CN 201711215666 A CN201711215666 A CN 201711215666A CN 107723420 A CN107723420 A CN 107723420A
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- cooled
- room temperature
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- workpiece
- stove
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Classifications
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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
-
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- 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
- C21D2211/00—Microstructure comprising significant phases
Abstract
The invention discloses a kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component, realized by following steps：(1) put the workpiece in glowing furnace and be preheated to 150 DEG C；(2) a point two level is heated to 1085 DEG C of hardening heat and is incubated in glowing furnace.(3) workpiece is come out of the stove into oil quenchinng to 60 DEG C.(4) workpiece is entered to 500 DEG C of insulation tempering of tempering furnace for the first time, comes out of the stove and is air-cooled to room temperature；(5) it is air-cooled to first time cold treatment immediately after room temperature.(6) enter 500 DEG C of insulation tempering of tempering furnace for the second time, come out of the stove and be air-cooled to room temperature.(7) it is air-cooled to second of cold treatment immediately after room temperature.(8) enter 500 DEG C of insulation tempering of tempering furnace for the third time, come out of the stove and be air-cooled to room temperature.The present invention reliably ensures its quenching degree and accurately controls that material internal crystalline substance thinning microstructure is uniform and stable, effective to improve corrosion resistance and the intensity of material.
Description
【Technical field】
The present invention relates to stainless steel material technical field of heat treatment, more particularly to a kind of high carbon and chromium martensitic stainless steel essence
The heat treatment quenching process of close part.
【Background technology】
In recent years, import special steel material is constantly increasing, particularly the high purity steel of the country such as the U.S., Germany, has pure
The fine qualities such as clear height, crystal grain refinement, even tissue；But China is heat-treated horizontal incompatible therewith at present, it is difficult to plays it
Performance, huge waste is caused, some supply producers have to set special heat treatment service Factory at home, cause cost great
Rise.
ASSAB ELMAX are Sweden's trade mark, are a kind of high cleanliness, the heat-resisting acidproof horse of the uniform high carbon and chromium of crystal grain refinement
Family name's body stainless steel, major alloy composition are 1.70%C 18%Cr 0.8%Si 1.0%Mo 3.0%V0.3%Mn, have height
Wearability and corrosion resistance, can pass through quench realize hardening；It is mainly used in the addition of the engineering plastic product, IC, connection of fiber
The precision die of the electronic components such as device, switch, resistance processing, has taken into account wearability and corrosion resistance, in corrosive environment and unlubricated
Work precision component in strong oxidizing atmosphere, conventional hardness HRC58-HRC60.
The punch-pin in chip IC package mould, cavity plate in semiconductor packaging device, using ASSAB ELMAX high carbon and chromiums
Heat-resisting acidproof martensitic stain less steel, except requiring that hardness height, wearability height, good corrosion resistance, long lifespan, reliability are high；But because of it
High carbon and chromium and poor thermal conductivity, thickness of workpiece, alloy composition also have a great influence to Technology for Heating Processing, cause Technology for Heating Processing to be answered
It is miscellaneous, improper not only difficult its premium properties of performance is such as heat-treated, quality is also difficult to control, easily scrapped in batches；General high-carbon is high
Chromium Technology for Heating Processing, it is difficult to reliably ensure its quenching degree and accurately control the uniformity of material internal crystalline phase tissue, its phase
Group is internal there is also 10-20% retained austenite, is produced creep to martensite transfor mation by thermally labile, causes part in work
Size is unstable during work, and the tendency of its intercrystalline corrosion fracture also reduces the corrosion resistance of material and the intensity of material.
【The content of the invention】
In view of this, it is overcome the deficiencies in the prior art, the present invention provides a kind of high carbon and chromium martensitic stainless steel
The heat treatment quenching process of precision component, reliably ensure its quenching degree and to accurately control material internal crystalline substance thinning microstructure uniform
It is stable；Tempering, cold treatment twice three times, retained austenite continued to martensite transfor mation, reached elimination retained austenite, eliminate
Creep, stable dimensions and the tendency for reducing intercrystalline corrosion fracture, improve corrosion resistance and the intensity of material.
To achieve the above object, technical scheme is as follows：
A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component, is realized by following steps：(1)
Put the workpiece in glowing furnace and be preheated to 150 DEG C；(2) a point two level is heated to 1085 DEG C of hardening heat and is incubated in glowing furnace；
(3) workpiece is come out of the stove into oil quenchinng to 60 DEG C；(4) workpiece is entered to 500 DEG C of insulation tempering of tempering furnace for the first time, comes out of the stove and is air-cooled to room
Temperature；(5) it is air-cooled to first time cold treatment immediately after room temperature；(6) enter 500 DEG C of insulation tempering of tempering furnace for the second time, come out of the stove and be air-cooled to
Room temperature；(7) it is air-cooled to second of cold treatment immediately after room temperature；(8) 500 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove are entered for the third time
To room temperature.
Further, it is described to put the workpiece in point preheating in glowing furnace, with the firing rate less than 75 DEG C/h to 150
℃。
A described point two level in glowing furnace is heated to hardening heat and is incubated, and continues to be heated to 800 DEG C after workpiece preheating
And 60min is incubated, continue to be heated to 1085 DEG C of hardening heat and be incubated 45min.
Workpiece is come out of the stove to 60 DEG C and is put into 60-70 DEG C of quenching oil and starts by described oil quenchinng that workpiece is come out of the stove
Mixer, it is fuel-displaced when being cooled to 140 DEG C to be air-cooled to 60 DEG C.
Further, it is described that workpiece is entered to 500 DEG C of insulation tempering of tempering furnace for the first time, come out of the stove and be air-cooled to room temperature, work as workpiece
After oil quenching it is air-cooled to 60 DEG C when enter tempering furnace immediately and be heated to 500 DEG C and be incubated 150min, natural air cooling room temperature of coming out of the stove, tempering
500 DEG C have post-curing effect.
The described first time cold treatment immediately after workpiece is air-cooled to room temperature, it is cold to enter liquid nitrogen immediately when workpiece is air-cooled to room temperature
Cabinet is handled, liquid nitrogen is passed through and is cooled to -85 DEG C and is incubated 90min, cabinet door is opened and workpiece naturally uniform liter indoors is taken out after 15 minutes
Temperature.
Described enters 500 DEG C of insulation tempering of tempering furnace for the second time, comes out of the stove and is air-cooled to room temperature, temperature rises to after workpiece cold treatment
Enter tempering furnace during room temperature for the second time immediately to be heated to 500 DEG C and be incubated 150min, natural air cooling of coming out of the stove is tempered 500 DEG C to room temperature
There is post-curing effect.
Described second of cold treatment immediately after workpiece is air-cooled to room temperature, it is cold to enter liquid nitrogen immediately when workpiece is air-cooled to room temperature
Cabinet is handled, liquid nitrogen is passed through and is cooled to -85 DEG C and is incubated 90min, cabinet door is opened and workpiece naturally uniform liter indoors is taken out after 15 minutes
Temperature.
Described third time enters 500 DEG C of insulation tempering of tempering furnace, comes out of the stove and is air-cooled to room temperature, temperature rises to after workpiece cold treatment
Enter tempering furnace during room temperature for the third time immediately to be heated to 500 DEG C and be incubated 150min, natural air cooling of coming out of the stove is tempered 500 DEG C to room temperature
There is post-curing effect.
The invention has the advantages that tempering, the cold treatment twice three times in heat treatment process, can finely control workpiece
Internal crystalline phase tissue, crystal grain refinement, uniformly, stably, reliably is allowed to, cold treatment is carried out after tempering, be allowed to retained austenite continuation
To martensite transfor mation, reach elimination retained austenite, elimination creep, stable dimensions simultaneously reduce the tendency of intercrystalline corrosion fracture, carried
The intensity of high corrosion-resistant and material, make good part wearability, long lifespan, reliability height, Temperature Size stable.Present invention operation letter
It is single practical, there is higher engineering application value, it, which puts goods on the market, will produce significantly 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 Technology for Heating Processing 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 high carbon and chromium martensitic stainless steel precision component, is realized by following steps：(1)
Put the workpiece in glowing furnace and be preheated to 150 DEG C；(2) a point two level is heated to 1085 DEG C of hardening heat and is incubated in glowing furnace；
(3) workpiece is come out of the stove into oil quenchinng to 60 DEG C；(4) workpiece is entered to 500 DEG C of insulation tempering of tempering furnace for the first time, comes out of the stove and is air-cooled to room
Temperature；(5) it is air-cooled to first time cold treatment immediately after room temperature；(6) enter 500 DEG C of insulation tempering of tempering furnace for the second time, come out of the stove and be air-cooled to
Room temperature；(7) it is air-cooled to second of cold treatment immediately after room temperature；(8) 500 DEG C of insulation tempering of tempering furnace, air cooling of coming out of the stove are entered for the third time
To room temperature.
Referring to Fig. 1, thickness is less than the 30mm heat-resisting acidproof martensitic stain less steel precision zero of ASSAB ELMAX high carbon and chromiums
Part, hardness requirement HRC58-60.
(1) a collection of thickness about 30mm workpiece is put into glowing furnace and divided, with the firing rate less than 75 DEG C/h extremely
150 DEG C of preheatings；
(2) workpiece continues to be heated to 800 DEG C in glowing furnace and is incubated 60min, is further continued for being heated to hardening heat 1085
DEG C and be incubated 45min；
(3) workpiece is come out of the stove and is put into 60-80 DEG C of quenching oil and starts mixer, it is fuel-displaced when being cooled to 140 DEG C to be air-cooled to
60℃。
(4) enter tempering furnace for the first time immediately when being air-cooled to 60 DEG C after workpiece oil quenching to be heated to 500 DEG C and be incubated 150min,
Come out of the stove natural air cooling room temperature；
(5) enter liquid nitrogen cold treatment cabinet when workpiece is air-cooled to room temperature for the first time immediately, be passed through liquid nitrogen and be cooled to -85 DEG C and be incubated
90min, workpiece uniformly heating naturally indoors is taken out after opening cabinet door 15min；
(6) enter tempering furnace when temperature is warmed to room temperature after workpiece cold treatment for the second time immediately to be heated to 500 DEG C and be incubated
150min, natural air cooling of coming out of the stove is to room temperature；
(7) enter liquid nitrogen cold treatment cabinet when workpiece is air-cooled to room temperature for the second time immediately, be passed through liquid nitrogen and be cooled to -85 DEG C and be incubated
90min, open cabinet door and workpiece uniformly heating naturally indoors is taken out after 15 minutes；
(8) enter tempering furnace when temperature is warmed to room temperature after workpiece cold treatment for the third time immediately to be heated to 500 DEG C and be incubated
150min, natural air cooling of coming out of the stove is to room temperature；
(9) 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 uses progressive solution, makes to be uniformly heated；It is different using being tempered three times
The different soaking times of thickness, the internal crystalline phase tissue of workpiece can be finely controlled, be allowed to crystal grain refinement, uniformly, stably, reliably,
Cold treatment twice is carried out after tempering, retained austenite is allowed to and continues to martensite transfor mation, reaches elimination retained austenite, eliminate compacted
Become, stable dimensions simultaneously reduce the tendency of intercrystalline corrosion fracture, improve the intensity of corrosion resistance and material, make that part wearability is good, the longevity
Life is long, reliability is high, Temperature Size is stable.The present invention is simple and easy, has higher engineering application value, it puts goods on the market must
Significantly Social benefit and economic benefit will be produced.The foregoing is intended to be a preferred embodiment of the present invention.
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 (4)
1. a kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component, it is characterised in that mainly pass through
Following step and technical scheme are addressed：(1) put the workpiece in glowing furnace and be preheated to 150 DEG C；(2) two are divided in glowing furnace
Level is heated to 1085 DEG C of hardening heat and is incubated；(3) workpiece is come out of the stove into oil quenchinng to 60 DEG C；(4) workpiece is entered back for the first time
500 DEG C of insulation tempering of stove, come out of the stove and are air-cooled to room temperature；(5) it is air-cooled to first time cold treatment immediately after room temperature；(6) enter for the second time
500 DEG C of insulation tempering of tempering furnace, come out of the stove and are air-cooled to room temperature；(7) it is air-cooled to second of cold treatment immediately after room temperature；(8) third time
Enter 500 DEG C of insulation tempering of tempering furnace, come out of the stove and be air-cooled to room temperature.
2. a kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component, described to divide two level in glowing furnace
It is heated to hardening heat and is incubated, it is characterised in that continues to be heated to 800 DEG C after workpiece preheating and be incubated 60min, continue to heat
To being heated to 1085 DEG C of hardening heat and be incubated 45min.
3. a kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component, described to enter back workpiece for the first time
The insulation tempering of 500 DEG C of stove, comes out of the stove and is air-cooled to room temperature, it is characterised in that when after workpiece oil quenching it is air-cooled to 60 DEG C when enter back immediately
Stove is heated to 500 DEG C and is incubated 150min, natural air cooling room temperature of coming out of the stove.
It is described when workpiece is air-cooled to room temperature 4. a kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component
First time cold treatment immediately afterwards, it is characterised in that enter liquid nitrogen cold treatment cabinet when workpiece is air-cooled to room temperature immediately, it is cold to be passed through liquid nitrogen
To -85 DEG C and 90min is incubated, cabinet door is opened and workpiece uniformly heating naturally indoors is taken out after 15 minutes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711215666.9A CN107723420A (en) | 2017-11-28 | 2017-11-28 | A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component |
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| CN201711215666.9A CN107723420A (en) | 2017-11-28 | 2017-11-28 | A kind of heat treatment quenching process of high carbon and chromium martensitic stainless steel precision component |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108411072A (en) * | 2018-04-23 | 2018-08-17 | 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 high carbon martensite acid-resistant stainless steel precision component |
| CN108588369A (en) * | 2018-04-22 | 2018-09-28 | 黄石高校智源技术咨询服务有限公司 | A kind of heat-resisting accurate heat treatment quenching process of acid-resistant stainless steel precision component of high carbon and chromium |
| CN108754100A (en) * | 2018-06-13 | 2018-11-06 | 武汉科技大学 | A kind of high chrome heat treatment method for inhibiting martensite back to increase dislocation density |
| CN109280753A (en) * | 2018-10-16 | 2019-01-29 | 曾令炎 | A kind of processing technology of rock wool centrifuge roller |
| CN113444859A (en) * | 2021-06-22 | 2021-09-28 | 北京航空航天大学 | Double tempering treatment process method for 10Cr13Co13Mo5Ni3W1VE ultrahigh-strength stainless steel product |
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| CN1664153A (en) * | 2005-03-17 | 2005-09-07 | 上海材料研究所 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
| CN103589839A (en) * | 2013-10-21 | 2014-02-19 | 航天精工股份有限公司 | Heat treatment technique of high-carbon high-chromium stainless steel |
| CN106440987A (en) * | 2016-11-25 | 2017-02-22 | 东莞市镒凯模具科技有限公司 | Precision stainless steel needle gauge and processing technology |
-
2017
- 2017-11-28 CN CN201711215666.9A patent/CN107723420A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1664153A (en) * | 2005-03-17 | 2005-09-07 | 上海材料研究所 | Anticorrosion and antiwear martensitic stainless steel and its production method and use |
| CN103589839A (en) * | 2013-10-21 | 2014-02-19 | 航天精工股份有限公司 | Heat treatment technique of high-carbon high-chromium stainless steel |
| CN106440987A (en) * | 2016-11-25 | 2017-02-22 | 东莞市镒凯模具科技有限公司 | Precision stainless steel needle gauge and processing technology |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108588369A (en) * | 2018-04-22 | 2018-09-28 | 黄石高校智源技术咨询服务有限公司 | A kind of heat-resisting accurate heat treatment quenching process of acid-resistant stainless steel precision component of high carbon and chromium |
| CN108411072A (en) * | 2018-04-23 | 2018-08-17 | 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 high carbon martensite acid-resistant stainless steel precision component |
| CN108754100A (en) * | 2018-06-13 | 2018-11-06 | 武汉科技大学 | A kind of high chrome heat treatment method for inhibiting martensite back to increase dislocation density |
| CN109280753A (en) * | 2018-10-16 | 2019-01-29 | 曾令炎 | A kind of processing technology of rock wool centrifuge roller |
| CN113444859A (en) * | 2021-06-22 | 2021-09-28 | 北京航空航天大学 | Double tempering treatment process method for 10Cr13Co13Mo5Ni3W1VE ultrahigh-strength stainless steel product |
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