CN106854688B - A kind of heat treatment process controlling 410 stainless steel band mechanical property of cold rolling - Google Patents
A kind of heat treatment process controlling 410 stainless steel band mechanical property of cold rolling Download PDFInfo
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- CN106854688B CN106854688B CN201710144853.6A CN201710144853A CN106854688B CN 106854688 B CN106854688 B CN 106854688B CN 201710144853 A CN201710144853 A CN 201710144853A CN 106854688 B CN106854688 B CN 106854688B
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- stainless steel
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- degreasing
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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
- C21D1/26—Methods of annealing
-
- 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
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Abstract
It is related to the heat treatment process of cold rolled stainless steel band the present invention provides a kind of, the stainless steel is 410 stainless steels.Specific heat treatment step includes: (1) degreasing, and the stainless steel band after cold rolling is carried out degreasing；(2) it cleans, dry, the stainless steel band after degreasing is washed with water completely, and is dried in heating furnace；(3) stainless steel band after drying is sent into vacuum annealing furnace and anneals by vacuum continuous annealing；(4) cooling, the stainless steel band after annealing is fed and is cooled to certain temperature into cooling chamber, is then come out of the stove air-cooled.Heat treatment method simple process of the invention, and the stainless steel comprehensive mechanical property obtained is good, improves product lumber recovery and product quality.
Description
Technical field
The present invention relates to cold rolled stainless steel band technical field of heat treatment technology, and in particular to 410 stainless steels after a kind of cold rolling
The heat treatment process of band.
Background technique
410 stainless steels are preferably a kind of as intensity, toughness in martensitic stain less steel, because its good machining property,
Excellent corrosion resistance, preferable intensity and cheap, are widely used in household electrical appliances, kitchen utensils.But current 410 stainless steel is big
It produces continuous annealing heat treatment process to formulate based on experience, ununified codes and standards causes the strip quality of production
Unstable, production efficiency is not high, while making the competitiveness of product in market not high.The stainless steel produced under existing process system
Product lumber recovery is low.
Summary of the invention
The heat treatment process of 410 stainless steel of one kind provided it is an object of the invention to overcome the deficiencies in the prior art,
This is simple for process, is being guaranteed outside the good comprehensive mechanical property of material acquisition using the technique, while can effectively improve production
The quality and lumber recovery of product.
To achieve the above object, the present invention provides a kind of heat treatment works for controlling 410 stainless steel band mechanical property of cold rolling
Skill, which comprises the steps of:
(1) degreasing: 410 stainless steel bands after cold rolling to be annealed are deoiled, until surface complete wetting, no greasy dirt；
(2) it cleans, dry: 410 stainless steel bands after degreasing being cleaned, are dried.
(3) 410 stainless steel bands after drying vacuum continuous annealing: are sent into vacuum annealing furnace.The vacuum of 410 stainless steel bands
Annealing is carried out in strip simulated annealing testing machine, and heating speed, heating temperature, soaking time, cooling velocity are controllable, annealing temperature
Between 800~925 DEG C；870~880 DEG C should be particularly avoided, optimum annealing temperature is 850 ± 10 DEG C；
(4) cooling: to cool down 410 stainless steel bands feeding cooling chamber after annealing.
Degreasing agent used in further step (1) is the NaOH solution that mass fraction is 25%.
Cleaning agent is water in further step (2), is dried in heating furnace, and furnace temperature is 100 DEG C.
Further step (3) used is vacuum continuous annealing furnace, and heating method is infrared radiation heating, and vacuum degree is
1.5Pa, heating speed maximum can be 30 DEG C/s.Soaking time 60s.
Further step (4) cooling velocity is up to 10 DEG C/s, cooling medium N2。
Present invention process is simple and easy, can effectively improve the mechanical property, quality and production efficiency of product.
Detailed description of the invention
Fig. 1 is heat treatment process figure of the invention.
Fig. 2 is vacuum annealing process figure of the invention.
Specific embodiment
The present invention meets the product of market demands, in difference when carrying out annealing operation to 410 stainless steel bands in order to obtain
Annealing temperature has carried out a series of experiments and process modification, annealing temperature be 800 DEG C, 825 DEG C, 850 DEG C, 875 DEG C, 900 DEG C,
925 DEG C are tested respectively, and discovery products obtained therefrom comprehensive mechanical property in 875 DEG C of annealing is poor, anisotropy is big.In reality
875 DEG C should be avoided in annealing process.Comprehensively consider its cost and elongation percentage situation, annealing temperature is in 850 DEG C of ± 10 DEG C of annealing
Products obtained therefrom comprehensive mechanical property is good, and anisotropy is small.It is situated between below with reference to specific case study on implementation is further to the present invention
It continues.
Case study on implementation 1
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 800 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 349MPa, transverse direction σ0.2For 312MPa；Tensile strength longitudinal direction σbFor
494MPa, transverse direction σbFor 511MPa；Elongation percentage is 21%；Hardness HV 189；
Case study on implementation 2
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 825 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 288MPa, transverse direction σ0.2For 295MPa；Tensile strength longitudinal direction σbFor
482MPa, transverse direction σbFor 499MPa；Elongation percentage is 23.6%；Hardness HV 151；
Case study on implementation 3
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 850 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 275MPa, transverse direction σ0.2For 294MPa；Tensile strength longitudinal direction σbFor
492MPa, transverse direction σbFor 487MPa；Elongation percentage is 23.3%；Hardness HV 169；
Case study on implementation 4
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 875 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 276MPa, transverse direction σ0.2For 375MPa；Tensile strength longitudinal direction σbFor
478MPa, transverse direction σbFor 610MPa；Elongation percentage is 21.4%；Hardness HV 208；
Case study on implementation 5
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 900 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 349MPa, transverse direction σ0.2For 372MPa；Tensile strength longitudinal direction σbFor
564MPa, transverse direction σbFor 604MPa；Elongation percentage is 10.5%；Hardness HV 202；
Case study on implementation 6
Material prepares: 410 stainless steel bands after selecting cold rolling, thickness specification 0.375mm, width specifications 880mm；
Degreasing: the degreasing agent of selection is the NaOH solution that mass fraction is 25%, stainless steel band is carried out ungrease treatment, directly
To surface complete wetting, no greasy dirt；
Cleaning, drying: cleaning agent is water, is dried in heating furnace, and furnace temperature is 100 DEG C；
Annealing: the stainless steel after drying is sent into annealing furnace, is heated to 925 DEG C of annealing, heat preservation with the speed of 25 DEG C/s
60s, then with the speed of 10 DEG C/s in N2It is cooled to 200 DEG C under protection, comes out of the stove later air-cooled.
Final products performance: yield strength longitudinal direction σ0.2For 424MPa, transverse direction σ0.2For 444MPa；Tensile strength longitudinal direction σbFor
645MPa, transverse direction σbFor 670MPa；Elongation percentage is 16.3%；Hardness HV 210；
The considerations of combination product demand and comprehensive mechanical property, in 875 DEG C of annealing, products obtained therefrom comprehensive mechanical property is poor,
Anisotropy is big, and reality avoid this temperature when annealing.The comprehensive mechanical property of the product obtained in 850 ± 10 DEG C of annealing temperatures
It can be best with quality.
The above case study on implementation is the processing case that the present invention is directed to 410 stainless steels.It is especially 850 ± 10 in annealing temperature
DEG C when, resulting product comprehensive mechanical property is good, anisotropy is small, yield strength σ0.2For 285MPa, tensile strength sigmabFor
490MPa, elongation percentage 23.3%, hardness HV 169；Meet general standard yield strength σ0.2For 260MPa, tensile strength sigmabFor
470MPa, elongation percentage 20%, hardness HV 145；Particularly 875 DEG C should be avoided in actually annealing.The present invention simultaneously not only limits
It is all in scope of design of the invention for related amendments and variation of the invention in the above, in guarantor of the invention
Within shield.
Claims (1)
1. a kind of heat treatment process for controlling 410 stainless steel band mechanical property of cold rolling, which is characterized in that specific step is as follows:
(1) degreasing: 410 stainless steel bands to be annealed are deoiled, until surface complete wetting, no greasy dirt；
(2) it cleans, dry: 410 stainless steel bands after degreasing being cleaned, are dried；
(3) 410 stainless steel bands after drying vacuum continuous annealing: are sent into vacuum annealing furnace；The vacuum annealing of 410 stainless steel bands
It is carried out in strip simulated annealing testing machine, heating speed can be controlled, heating temperature, soaking time, cooling velocity are controllable；
(4) cooling: to cool down 410 stainless steel bands feeding cooling chamber after annealing；
Degreasing agent used in step (1) is the NaOH solution that mass fraction is 25%, and 410 stainless steel bands are the stainless steel after cold rolling
Band, the thickness specification of 410 stainless steel bands are 0.375mm, width specifications 880mm；
Cleaning agent is water in step (2), is dried in heating furnace, and furnace temperature is 100 DEG C；
Step (3) used is vacuum continuous annealing furnace, and heating method is infrared radiation heating, vacuum degree 1.5Pa, heating speed
It is up to 30 DEG C/s, minimum 25 DEG C/s, soaking time 60s, annealing temperature is 850 ± 10 DEG C；
Cooling velocity is 10 DEG C/s, cooling medium N in step (4)2。
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| CN201710144853.6A CN106854688B (en) | 2017-03-13 | 2017-03-13 | A kind of heat treatment process controlling 410 stainless steel band mechanical property of cold rolling |
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| CN106854688A CN106854688A (en) | 2017-06-16 |
| CN106854688B true CN106854688B (en) | 2019-07-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110964893B (en) * | 2019-11-18 | 2021-08-03 | 江苏延汉材料科技有限公司 | Controlled rolling annealing method for stainless steel for cutter |
| CN112475783A (en) * | 2020-10-19 | 2021-03-12 | 江苏苏讯新材料科技股份有限公司 | Novel stainless iron screw cap and manufacturing process thereof |
| CN115341074B (en) * | 2022-09-05 | 2024-01-09 | 江苏圣珀新材料科技有限公司 | Annealing process of dual-phase steel |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52131920A (en) * | 1976-04-28 | 1977-11-05 | Nippon Steel Corp | Production of ferritic stainless steel plate with excellent ridging property |
| JPS60118396A (en) * | 1983-12-01 | 1985-06-25 | Mitsubishi Metal Corp | Production of thin clad sheet material consisting of au or au alloy and stainless steel having high work hardenability |
| CN103173594A (en) * | 2013-04-09 | 2013-06-26 | 江苏呈飞精密合金股份有限公司 | Process for performing complete stress relief annealing on cold-rolled stainless steel coil by means of continuous annealing furnace |
| CN103484639A (en) * | 2013-09-11 | 2014-01-01 | 山东能源机械集团乾元不锈钢制造有限公司 | Production technology of cold-rolled hard stainless steel bands |
| CN105483342A (en) * | 2014-10-08 | 2016-04-13 | 王美 | Annealing process for improving performance of 410 stainless steel |
-
2017
- 2017-03-13 CN CN201710144853.6A patent/CN106854688B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52131920A (en) * | 1976-04-28 | 1977-11-05 | Nippon Steel Corp | Production of ferritic stainless steel plate with excellent ridging property |
| JPS60118396A (en) * | 1983-12-01 | 1985-06-25 | Mitsubishi Metal Corp | Production of thin clad sheet material consisting of au or au alloy and stainless steel having high work hardenability |
| CN103173594A (en) * | 2013-04-09 | 2013-06-26 | 江苏呈飞精密合金股份有限公司 | Process for performing complete stress relief annealing on cold-rolled stainless steel coil by means of continuous annealing furnace |
| CN103484639A (en) * | 2013-09-11 | 2014-01-01 | 山东能源机械集团乾元不锈钢制造有限公司 | Production technology of cold-rolled hard stainless steel bands |
| CN105483342A (en) * | 2014-10-08 | 2016-04-13 | 王美 | Annealing process for improving performance of 410 stainless steel |
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