CN107513601A - A kind of heat treatment method for effectively improving steel performance - Google Patents
A kind of heat treatment method for effectively improving steel performance Download PDFInfo
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- CN107513601A CN107513601A CN201711013212.3A CN201711013212A CN107513601A CN 107513601 A CN107513601 A CN 107513601A CN 201711013212 A CN201711013212 A CN 201711013212A CN 107513601 A CN107513601 A CN 107513601A
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- area
- heat treatment
- temperature
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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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
- C23C8/52—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions more than one element being applied in one step
- C23C8/54—Carbo-nitriding
- C23C8/56—Carbo-nitriding of ferrous surfaces
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses a kind of heat treatment method for effectively improving steel performance, comprise the following steps that：Charging, 1st area quenching preheating, 2 area's Quench heatings, 3 area's nitrocarburizings, air-dried de-oiling, washing oil, tempering, discharging；Feed first, raw material is sent into 1st area of quenching, 720 DEG C is pre-heated to, keeps 5min, it is subsequently sent to quench the heating of 2nd area, temperature is maintained at 950 DEG C, after continuing 1h, raw material is sent into 3rd area, and temperature is reduced to 570 DEG C, carries out nitrocarburizing processing, after keeping 3h, de-oiling, subsequent washing oil are air-dried, and tempering process processing is carried out, in link of annealing, annealing furnace furnace temperature is heated to 900 DEG C on the basis of 400 DEG C with 120 DEG C/h speed, after being kept for 2 hours, with 150 DEG C/h rate reduction to 600 DEG C, kept for 2 hours；Then cooling, discharging.By the above-mentioned means, the present invention, which can make the steel workpiece size after heat treatment change small and infiltration layer, has good wear-resisting, antifatigue and antifriction performance concurrently；It is anti-corrosion in the media such as water, seawater；The steel-iron components and cutlery, mould of any trade mark of the temperature higher than 520 DEG C can be handled.
Description
Technical field
The present invention relates to Technology for Heating Processing, more particularly to a kind of heat treatment method for effectively improving steel performance.
Background technology
Metal heat treatmet is one of important process in machine-building, and compared with other processing technologys, heat treatment is general not
Change the shape of workpiece and overall chemical composition, but by changing the microscopic structure of inside workpiece, or change workpiece surface
Chemical composition, assign or improve workpiece performance.It is characterized in improving the inherent quality of workpiece, and this is generally not meat
What eye can be seen.It is heat-treated to make metal works that there is required mechanical property, physical property and chemical property, except reasonable
Outside the selection of material and various forming technologies, Technology for Heating Processing is often essential.Steel is most widely used in mechanical industry
Material, microstructure of iron and steel is complicated, can be controlled by heat treatment, so the heat treatment of steel is metal heat treatmet
Main contents.In addition, aluminium, copper, magnesium, titanium etc. and its alloy also can change its mechanics, physics and chemically by being heat-treated
Can, to obtain different performances.
A kind of heat treatment method how is designed, wear-resisting, the antifatigue and antifriction performance of steel can be effectively improved, while again
The change of its physical dimension is not influenceed, is the problem of being worth research idea.
The content of the invention
The present invention solves the technical problem of a kind of heat treatment method for effectively improving steel performance is provided, can make
Steel workpiece size after heat treatment changes small and infiltration layer and has good wear-resisting, antifatigue and antifriction performance concurrently；In water, seawater
Deng anti-corrosion in medium；The steel-iron components and cutlery, mould of any trade mark of the temperature higher than 520 DEG C can be handled.
In order to solve the above technical problems, one aspect of the present invention is：One kind is provided and effectively improves steel
The heat treatment method of energy, is comprised the following steps that：Charging, 1st area quenching preheating, 2 area's Quench heatings, 3 area's nitrocarburizings, air-dry take off
Oil, washing oil, tempering, discharging；Feed first, raw material is sent into 1st area of quenching, 720 DEG C is pre-heated to, keeps 5min, be subsequently sent to
The heating of 2nd area is quenched, temperature is maintained at 950 DEG C, and after continuing 1h, raw material is sent into 3rd area, and temperature is reduced to 570 DEG C, carries out nitrocarburizing
Processing, after keeping 3h, de-oiling, subsequent washing oil are air-dried, and carry out tempering process processing, in link of annealing, annealing furnace furnace temperature is 400
900 DEG C are heated to 120 DEG C/h speed on the basis of DEG C, after being kept for 2 hours, with 150 DEG C/h rate reduction to 600 DEG C, is protected
Hold 2 hours；Then cooling, discharging.
In a preferred embodiment of the present invention, 3rd area nitrogen-carbon cocementing process is fused salt nitrocarburizing, and its medium is base
Salt, regenerant salt and saline oxide.
In a preferred embodiment of the present invention, the matter of the fused salt nitrocarburizing medium base salt, regenerant salt and saline oxide
Amount proportioning is 2:3:2.
The beneficial effects of the invention are as follows：It is simultaneous that the present invention can make the steel workpiece size after heat treatment change small and infiltration layer
There is good wear-resisting, antifatigue and antifriction performance；It is anti-corrosion in the media such as water, seawater；Temperature can be handled and be higher than 520 DEG C
Steel-iron components and cutlery, the mould of any trade mark.
Embodiment
Presently preferred embodiments of the present invention is described in detail below so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defined so as to be made to protection scope of the present invention.
The embodiment of the present invention includes：
A kind of heat treatment method for effectively improving steel performance, is comprised the following steps that：Charging, 1st area quenching preheating, the quenching of 2nd area
Heating, 3 area's nitrocarburizings, air-dry de-oiling, washing oil, tempering, discharging；Feed first, raw material is sent into 1st area of quenching, is pre-heated to
720 DEG C, 5min is kept, is subsequently sent to quench the heating of 2nd area, temperature is maintained at 950 DEG C, and after continuing 1h, raw material is sent into 3rd area, temperature
570 DEG C are reduced to, carries out nitrocarburizing processing, after keeping 3h, air-dries de-oiling, subsequent washing oil, and carries out tempering process processing, is moved back
In fire ring section, annealing furnace furnace temperature is heated to 900 DEG C on the basis of 400 DEG C with 120 DEG C/h speed, after being kept for 2 hours, with 150
DEG C/h rate reduction to 600 DEG C, kept for 2 hours；Then cooling, discharging.
Further illustrate, 3rd area nitrogen-carbon cocementing process is fused salt nitrocarburizing, and its medium is base salt, regenerant salt and oxygen
Salt dissolving.Medium produces reaction under the high temperature conditions, group cyanate radical is generated, because main active group cyanate radical can control
In optimum value ± 1.5%, and air-flow agitation promotes equalizing temperature, and not only process cycle is shorter 40%~50%, Er Qieqiang than gas method
Change excellent effect, stably.
Further illustrate, the quality proportioning of the fused salt nitrocarburizing medium base salt, regenerant salt and saline oxide is 2:3:
2.Under the conditions of mixture ratios, the reaction of base salt, regenerant salt and saline oxide is the most abundant, can control group cyanate radical in optimum value.
The present invention can make the steel workpiece size after heat treatment change small and infiltration layer have concurrently it is good wear-resisting, antifatigue
And antifriction performance；It is anti-corrosion in the media such as water, seawater；The steel-iron components of any trade mark of the temperature higher than 520 DEG C can be handled
And cutlery, mould.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, it is included within the scope of the present invention.
Claims (3)
1. a kind of heat treatment method for effectively improving steel performance, it is characterised in that comprise the following steps that：Charging, the quenching of 1st area are pre-
Heating, 2 area's Quench heatings, 3 area's nitrocarburizings, air-dry de-oiling, washing oil, tempering, discharging；Feed first, raw material is sent into quenching 1
Area, 720 DEG C are pre-heated to, keep 5min, be subsequently sent to quench the heating of 2nd area, temperature is maintained at 950 DEG C, and after continuing 1h, raw material is sent
Enter 3rd area, temperature is reduced to 570 DEG C, carries out nitrocarburizing processing, after keeping 3h, air-dries de-oiling, subsequent washing oil, and be tempered
PROCESS FOR TREATMENT, in link of annealing, annealing furnace furnace temperature is heated to 900 DEG C on the basis of 400 DEG C with 120 DEG C/h speed, keeps 2 small
Shi Hou, with 150 DEG C/h rate reduction to 600 DEG C, kept for 2 hours；Then cooling, discharging.
2. the heat treatment method according to claim 1 for effectively improving steel performance, it is characterised in that the 3rd area nitrogen carbon
Co-penetration technology is fused salt nitrocarburizing, and its medium is base salt, regenerant salt and saline oxide.
3. the heat treatment method according to claim 2 for effectively improving steel performance, it is characterised in that the fused salt nitrogen carbon
The quality proportioning of permeation medium base salt, regenerant salt and saline oxide is 2:3:2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711013212.3A CN107513601A (en) | 2017-10-25 | 2017-10-25 | A kind of heat treatment method for effectively improving steel performance |
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| CN201711013212.3A CN107513601A (en) | 2017-10-25 | 2017-10-25 | A kind of heat treatment method for effectively improving steel performance |
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| CN107513601A true CN107513601A (en) | 2017-12-26 |
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| CN201711013212.3A Pending CN107513601A (en) | 2017-10-25 | 2017-10-25 | A kind of heat treatment method for effectively improving steel performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387522A (en) * | 2019-08-16 | 2019-10-29 | 晋中开发区圣邦液压器件有限公司 | One kind being used for coal mine column cylinder corrosion-resistant QPQ salt bath composite heat treating process |
| CN112458248A (en) * | 2020-11-05 | 2021-03-09 | 马钢(合肥)板材有限责任公司 | Annealing regeneration method of low-alloy high-strength steel |
Citations (5)
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| CN102363866A (en) * | 2011-11-09 | 2012-02-29 | 胡国忠 | Method for preparing bobbin case in gripper shuttle loom |
| CN103710517A (en) * | 2012-10-05 | 2014-04-09 | 株式会社捷太格特 | Rolling sliding member, method of manufacturing the same, and rolling bearing |
| CN105154894A (en) * | 2015-09-29 | 2015-12-16 | 山东聊城德润机电科技发展有限公司 | Valve bush carbonitriding thermal treatment process for high-pressure common rail |
| CN105525230A (en) * | 2014-10-23 | 2016-04-27 | 无锡桥阳机械制造有限公司 | Method for manufacturing cutting tools from high-speed W18Cr4Nb material |
| CN105779852A (en) * | 2016-04-06 | 2016-07-20 | 郑邦宪 | High-voltage cable shaft disc |
-
2017
- 2017-10-25 CN CN201711013212.3A patent/CN107513601A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363866A (en) * | 2011-11-09 | 2012-02-29 | 胡国忠 | Method for preparing bobbin case in gripper shuttle loom |
| CN103710517A (en) * | 2012-10-05 | 2014-04-09 | 株式会社捷太格特 | Rolling sliding member, method of manufacturing the same, and rolling bearing |
| CN105525230A (en) * | 2014-10-23 | 2016-04-27 | 无锡桥阳机械制造有限公司 | Method for manufacturing cutting tools from high-speed W18Cr4Nb material |
| CN105154894A (en) * | 2015-09-29 | 2015-12-16 | 山东聊城德润机电科技发展有限公司 | Valve bush carbonitriding thermal treatment process for high-pressure common rail |
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| 张玉庭: "《简明热处理工手册》", 30 June 2013, 机械工业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110387522A (en) * | 2019-08-16 | 2019-10-29 | 晋中开发区圣邦液压器件有限公司 | One kind being used for coal mine column cylinder corrosion-resistant QPQ salt bath composite heat treating process |
| CN112458248A (en) * | 2020-11-05 | 2021-03-09 | 马钢(合肥)板材有限责任公司 | Annealing regeneration method of low-alloy high-strength steel |
| CN112458248B (en) * | 2020-11-05 | 2022-03-29 | 马钢(合肥)板材有限责任公司 | Annealing regeneration method of low-alloy high-strength steel |
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Application publication date: 20171226 |