CN110144441A - The heat treatment method of 0Cr13Ni5Mo stainless steel - Google Patents
The heat treatment method of 0Cr13Ni5Mo stainless steel Download PDFInfo
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- CN110144441A CN110144441A CN201910456528.2A CN201910456528A CN110144441A CN 110144441 A CN110144441 A CN 110144441A CN 201910456528 A CN201910456528 A CN 201910456528A CN 110144441 A CN110144441 A CN 110144441A
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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
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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
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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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/58—Oils
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Abstract
The invention discloses a kind of heat treatment methods of 0Cr13Ni5Mo stainless steel, this method is by pre-processing 0Cr13Ni5Mo stainless steel, solution treatment, ageing treatment, annealing, secondary solution treatment and tempering obtain the 0Cr13Ni5Mo stainless steel with high-intensity and high-tenacity, there is high-intensitive and high tenacity, workpiece long service life and the requirement that can satisfy different operating conditions by the processed 0Cr13Ni5Mo stainless steel of heat treatment method of the present invention.
Description
Technical field
The invention belongs to stainless steel alloy technical field of heat treatment, are related to the heat treatment method of 0Cr13Ni5Mo stainless steel.
Background technique
0Cr13Ni5Mo is the steel grade to grow up the 1960s, is a kind of Low Carbon Martensite Stainless Steel containing molybdenum,
Phosphorus content is lower, and containing 5% nickel, corrosion resistance is preferable, is the steel that corrosion resistance is best in Cr13 type stainless steel, formability
Excellent, weldability is good.0Cr13Ni5Mo stainless steel is in fields such as water power, thermoelectricity, nuclear powers in application, being chiefly used in manufacturing blower leaf
It takes turns, the connection between draught fan impeller components needs to be attached by welding procedure, and operating condition is more complicated, this requires
The toughness that 0Cr13Ni5Mo stainless steel has had again while having high-intensitive, therefore to the stainless Heat-Treatment of Steel of 0Cr13Ni5Mo
More stringent requirements are proposed for technique.
Summary of the invention
The object of the present invention is to provide a kind of heat treatment methods of 0Cr13Ni5Mo stainless steel, solve and deposit in the prior art
The stainless hardness of steel of 0Cr13Ni5Mo and toughness deficiency problem.
The technical scheme adopted by the invention is that the heat treatment method of 0Cr13Ni5Mo stainless steel, specifically according to following step
It is rapid to implement:
Step 1 checks workpiece and is pre-processed；
Step 2, solution treatment: pretreated workpiece is put into annealing device, is heated to 1020-1050 DEG C, is protected
Warm 1.5-2.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, and be heated to 560-600
DEG C, keep the temperature 1.5-2.5h；
Step 4, annealing: will be heated to 850-870 DEG C through the processed workpiece of step 3, keep the temperature 1.5-2.5h, then
It is placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: will be heated to 980-1080 DEG C through the processed workpiece of step 4, keep the temperature 1-1.5h, cooling
To room temperature；
Step 6, tempering: will be heated to 640-700 DEG C through the processed workpiece of step 5, keep the temperature 1.5-2.5h, then
It is placed in air and is cooled to room temperature.
The features of the present invention also characterized in that:
Pretreatment is specially to remove greasy dirt with acetone cleaning workpiece in step 1.
In step 5 it is cooling be specially using oil it is cold by the way of cooled down, after the cold mode cooling of oil, then with acetone pair
Workpiece is cleaned.
The rate of heat addition is 25 DEG C/min in all steps.
Heating temperature is 860 DEG C in step 4.
The beneficial effects of the present invention are: the heat treatment method of 0Cr13Ni5Mo stainless steel of the present invention, by being carried out to workpiece
Pretreatment, solution treatment, ageing treatment, annealing, secondary solution treatment and tempering, it is more uniform to obtain tissue
0Cr13Ni5Mo stainless steel improves the mechanical property of workpiece, so that workpiece has high-intensitive and good toughness.
Detailed description of the invention
Fig. 1 is the aobvious of the processed 0Cr13Ni5Mo stainless steel of heat treatment method through 0Cr13Ni5Mo stainless steel of the present invention
Micro-assembly robot figure；
Fig. 2 is the micro-organization chart through the processed 0Cr13Ni5Mo stainless steel of existing heat treatment method.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The heat treatment method of 0Cr13Ni5Mo stainless steel of the present invention, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1020-1050 DEG C, keeps the temperature 1.5-2.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 560-600 DEG C, keep the temperature 1.5-2.5h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 1.5-2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 980-1080 DEG C, 1-1.5h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 640-700 DEG C, 1.5-2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
In the heat treatment method of 0Cr13Ni5Mo stainless steel of the present invention:
The effect of step 1 is the mechanical property for preventing the obvious shortcoming of workpiece itself from influencing final workpiece；
The effect of step 2 is to obtain uniform supersaturated solid solution so that γ phase and the intracorporal carbide of base sufficiently dissolve；
The effect of step 3 is to be not susceptible to intercrystalline corrosion so that the carbide of Cr can be completely dissolved, and it is tiny to be precipitated particle,
The γ hardening constituent being evenly distributed；
860 DEG C of annealing purpose is to eliminate extra stress in step 4, due to adding in 0Cr13Ni5Mo stainless steel
The Mo element added is carbide, thus caused by post-curing clearly, heat preservation can make carbon in 1.5-2.5 hours
Compound is precipitated to the greatest extent, and the stainless hardness of steel of 0Cr13Ni5Mo greatly improves.
The cementite in tempered martensite generated after tempering in step 5 is in granular form, granular cementite pair
It prevents the extension of crackle in fracture process highly advantageous, and organizes more uniformization, improve the toughness of 0Cr13Ni5Mo stainless steel.
All heating process carries out in STM series chamber type electric resistance furnace, and heating rate control rises in 25 DEG C/min of <
Warm speed at the uniform velocity heats up always, prevent due to heating rate is uneven or heating it is too fast caused by workpiece center portion and external form temperature
Difference generates Stress superposition and causes workpiece cracking.
The existing heat treatment method of table 1 and heat treatment method of the present invention treated the stainless steel mechanical property pair of 0Cr13Ni5Mo
Than
| 0Cr13Ni5Mo | Yield strength | Tensile strength | Elongation after fracture | The contraction percentage of area |
| Existing heat treatment method | 620MPa | 795MPa | 15% | 46% |
| Heat treatment method of the present invention | 740.5MPA | 947.84MPA | 17% | 59% |
Table 1 is the stainless steel mechanical property of 0Cr13Ni5Mo after existing heat treatment method and heat treatment method of the present invention processing
Correlation data, as it can be seen from table 1 passing through the processed 0Cr13Ni5Mo of 0Cr13Ni5Mo stainless steel hot processing method of the present invention
Yield strength, tensile strength, elongation after fracture and the contraction percentage of area of stainless steel have different degrees of raising.
It can be seen that the heat by existing heat treatment method and 0Cr13Ni5Mo stainless steel of the present invention by Fig. 1 and Fig. 2 comparison
Treated that the stainless structure of steel of 0Cr13Ni5Mo is lath-shaped tempered martensite, reversed austenite and graininess for processing method
Carbide, but treated that the stainless structure of steel middle plate strip shape more crypto set of 0Cr13Ni5Mo is thin through heat treatment method of the present invention
It is long, and global tissue is carefully dense and uniform, therefore intensity is higher, toughness is more preferable.
To sum up, the heat treatment method of 0Cr13Ni5Mo stainless steel of the present invention, enhances the intensity of 0Cr13Ni5Mo stainless steel
And toughness, the service life of workpiece is extended, and can satisfy the needs of different operating conditions.
Embodiment 1
The heat treatment method of 0Cr13Ni5Mo stainless steel, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1020 DEG C, keeps the temperature 1.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 560 DEG C, keep the temperature 1.5h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 1.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 980 DEG C, 1h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 640 DEG C, 1.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
Embodiment 2
The heat treatment method of 0Cr13Ni5Mo stainless steel, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1030 DEG C, keeps the temperature 1.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 570 DEG C, keep the temperature 1.5h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 1.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 1000 DEG C, 1h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 660 DEG C, 1.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
Embodiment 3
The heat treatment method of 0Cr13Ni5Mo stainless steel, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1040 DEG C, keeps the temperature 2h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 580 DEG C, keep the temperature 2h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 2h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 1040 DEG C, 1.5h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 660 DEG C, 2h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
Embodiment 4
The heat treatment method of 0Cr13Ni5Mo stainless steel, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1040 DEG C, keeps the temperature 2.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 590 DEG C, keep the temperature 2.5h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 1060 DEG C, 1.5h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 680 DEG C, 2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
Embodiment 5
The heat treatment method of 0Cr13Ni5Mo stainless steel, is specifically implemented according to the following steps:
Step 1 is checked workpiece and is pre-processed check whether hole or crackle etc. obviously lack workpiece surface
It falls into, workpiece surface is cleaned with acetone, remove surface and oil contaminant；
Step 2, solution treatment: pretreated workpiece is put into annealing device, and the rate of heat addition is 25 DEG C/min's
Speed average rate is heated to 1050 DEG C, keeps the temperature 2.5h, is subsequently placed in air and is cooled to room temperature；
Step 3, ageing treatment: it will be placed in annealing device through the processed workpiece of step 2, the rate of heat addition 25
DEG C/the speed average rate of min is heated to 600 DEG C, keep the temperature 2.5h；
Step 4, annealing: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 3 is 25 DEG C/min
To 860 DEG C, 2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature；
Step 5, secondary solution treatment: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 4 is 25 DEG C/min
To 1080 DEG C, 1.5h is kept the temperature, is then cooled to room temperature in such a way that oil is cold, and workpiece is cleaned with acetone；
Step 6, tempering: it will be heated through the speed average rate that the processed workpiece rate of heat addition of step 5 is 25 DEG C/min
To 700 DEG C, 2.5h is kept the temperature, is subsequently placed in air and is cooled to room temperature.
Claims (6)
- The heat treatment method of 1.0Cr13Ni5Mo stainless steel, which is characterized in that be specifically implemented according to the following steps:Step 1 checks workpiece and is pre-processed；Step 2, solution treatment: pretreated workpiece is put into annealing device, is heated to 1020-1050 DEG C, heat preservation It is cooled to room temperature 1.5-2.5h being subsequently placed in air；Step 3, ageing treatment: will be placed in annealing device through the processed workpiece of step 2, be heated to 560-600 DEG C, protect Warm 1.5-2.5h；Step 4, annealing: will be heated to 850-870 DEG C through the processed workpiece of step 3, keep the temperature 1.5-2.5h, be subsequently placed in It is cooled to room temperature in air；Step 5, secondary solution treatment: will be heated to 980-1080 DEG C through the processed workpiece of step 4, keep the temperature 1-1.5h, be cooled to room Temperature；Step 6, tempering: will be heated to 640-700 DEG C through the processed workpiece of step 5, keep the temperature 1.5-2.5h, be subsequently placed in It is cooled to room temperature in air.
- 2. the heat treatment method of 0Cr13Ni5Mo stainless steel according to claim 1, which is characterized in that in the step 1 Pretreatment is specially to remove greasy dirt with acetone cleaning workpiece.
- 3. the heat treatment method of 0Cr13Ni5Mo stainless steel according to claim 1, which is characterized in that in the step 5 Cooling is specially to be cooled down in such a way that oil is cold.
- 4. the heat treatment method of 0Cr13Ni5Mo stainless steel according to claim 3, which is characterized in that cold by the oil After mode is cooling, workpiece is cleaned with acetone.
- 5. the heat treatment method of 0Cr13Ni5Mo stainless steel according to claim 1, which is characterized in that all steps The middle rate of heat addition is 25 DEG C/min.
- 6. the heat treatment method of 0Cr13Ni5Mo stainless steel according to claim 1, which is characterized in that in the step 4 Heating temperature is 860 DEG C.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1373590A1 (en) * | 2001-03-27 | 2004-01-02 | Crs Holdings, Inc. | Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom |
| CN102251084A (en) * | 2011-07-04 | 2011-11-23 | 南京迪威尔重型锻造股份有限公司 | Heat treatment process of steel forging for hydraulic cylinder of deep-sea oil recovery equipment |
| CN103014551A (en) * | 2011-09-22 | 2013-04-03 | 兴化市新迅达不锈钢标准件有限公司 | Novel high-temperature alloy heat-resistant stainless steel bolt and production process thereof |
| CN103740913A (en) * | 2014-01-10 | 2014-04-23 | 隆英（上海）企业有限公司 | High-temperature forged martensitic stainless steel heat treatment method |
| CN104372276A (en) * | 2014-11-04 | 2015-02-25 | 哈尔滨汽轮机厂有限责任公司 | Method for improving high-temperature properties of GH4698 alloy |
| CN106048158A (en) * | 2016-07-28 | 2016-10-26 | 北京动力机械研究所 | Heat treatment process for OCr17Ni4Cu4Nb stainless steel material |
| WO2018103090A1 (en) * | 2016-12-09 | 2018-06-14 | 张康 | High-nitrogen stainless bearing steel heat treatment process |
-
2019
- 2019-05-29 CN CN201910456528.2A patent/CN110144441B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1373590A1 (en) * | 2001-03-27 | 2004-01-02 | Crs Holdings, Inc. | Ultra-high-strength precipitation-hardenable stainless steel and elongated strip made therefrom |
| CN102251084A (en) * | 2011-07-04 | 2011-11-23 | 南京迪威尔重型锻造股份有限公司 | Heat treatment process of steel forging for hydraulic cylinder of deep-sea oil recovery equipment |
| CN103014551A (en) * | 2011-09-22 | 2013-04-03 | 兴化市新迅达不锈钢标准件有限公司 | Novel high-temperature alloy heat-resistant stainless steel bolt and production process thereof |
| CN103740913A (en) * | 2014-01-10 | 2014-04-23 | 隆英（上海）企业有限公司 | High-temperature forged martensitic stainless steel heat treatment method |
| CN104372276A (en) * | 2014-11-04 | 2015-02-25 | 哈尔滨汽轮机厂有限责任公司 | Method for improving high-temperature properties of GH4698 alloy |
| CN106048158A (en) * | 2016-07-28 | 2016-10-26 | 北京动力机械研究所 | Heat treatment process for OCr17Ni4Cu4Nb stainless steel material |
| WO2018103090A1 (en) * | 2016-12-09 | 2018-06-14 | 张康 | High-nitrogen stainless bearing steel heat treatment process |
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Effective date of registration: 20211118 Address after: 710032 Room 101, unit 2, building 9, Qinshui new town, Changle East Road, Chanba Ecological District, Xi'an City, Shaanxi Province Patentee after: Shaanxi Wantong pipe fittings manufacturing Co.,Ltd. Address before: 710048 Shaanxi province Xi'an Beilin District Jinhua Road No. 5 Patentee before: XI'AN University OF TECHNOLOGY |
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