CN110484826A - 05Cr17Ni4Cu4Nb martensitic stain less steel and its heat-treatment technology method - Google Patents
05Cr17Ni4Cu4Nb martensitic stain less steel and its heat-treatment technology method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 238000010438 heat treatment Methods 0.000 title claims abstract description 44
- 229910001105 martensitic stainless steel Inorganic materials 0.000 title claims abstract description 24
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 238000011282 treatment Methods 0.000 claims abstract description 31
- 230000032683 aging Effects 0.000 claims abstract description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 16
- 238000005728 strengthening Methods 0.000 claims abstract description 14
- 238000005242 forging Methods 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 4
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 239000006104 solid solution Substances 0.000 claims description 21
- 238000004321 preservation Methods 0.000 claims description 20
- 239000000243 solution Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 238000010791 quenching Methods 0.000 claims description 16
- 230000000171 quenching effect Effects 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000005275 alloying Methods 0.000 claims description 15
- 238000004090 dissolution Methods 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000002791 soaking Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 8
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000010949 copper Substances 0.000 description 5
- 239000004744 fabric Substances 0.000 description 4
- 229910000734 martensite Inorganic materials 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 238000004881 precipitation hardening Methods 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229960002050 hydrofluoric acid Drugs 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- 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
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
-
- 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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C21D2211/008—Martensite
Abstract
The invention discloses a kind of 05Cr17Ni4Cu4Nb martensitic stain less steel and its hot science and engineering process, belong to metallurgical production material and technology field.There is provided it is a kind of meet user to the technical need of the forging of different size or the mechanical property of rolling stock, prevent from generating the 05Cr17Ni4Cu4Nb martensitic stain less steel and its hot science and engineering process of cracking phenomena because heat treatment process is improper.The martensitic stain less steel is the fixation rates stainless steel plate for including following weight parts component, the parts by weight of component is C 0.040~0.055%, Si 0.20~0.40%, Mn 0.20~0.40%, Cr 15.1~15.45%, Ni 4.10~4.45%, Cu 3.10~3.40%, surplus is Fe and inevitable impurity, the σ b of stainless steel plate after molten ageing treatment is 1431~1460MPa, σ 0.2 is 1235~1265MPa, A is 14~19%, Z is 60~75%, Ak is 34.35~37.47J, HBW is 426~435, comprehensive mechanical property is good, the process includes being sequentially arranged Solution heat treatment and aging strengthening model.
Description
Technical field
The present invention relates to a kind of stainless steels to belong to smelting more particularly, to a kind of 05Cr17Ni4Cu4Nb martensitic stain less steel
Golden production material and technology field.The invention further relates to one kind for the 05Cr17Ni4Cu4Nb martensitic stain less steel
Carry out the process of hot reason.
Background technique
05Cr17NiCu4Nb is a kind of novel martensitic precipitation-hardening superhigh strength stainless steel, with external 17-4PH (beauty),
X5CrNiCuNb174 (moral), Z5CNU17.04 (method), SUS630 (day) trade mark are close, for it is typical it is martensitic precipitation hardening not
Become rusty steel；The steel is softer in solid solution condition, is readily formed and processes；The steel contains ageing strengthening element Cu, Nb, main hardening constituent
For copper-rich phase and a small amount of B2A type metallic compound (such as Fe2Nb), mutually realized by Precipitation carbide and ε-Cu
Strengthen；It can get high-intensitive, hardness and toughness after the steel heat treatment, the compressive resistance of 1100~1300MPa can be reached, had
Higher intensity, corrosion resistance, inoxidizability, weldability, the high-strength corrosion-resistant part to work suitable for 400 DEG C or less.Meanwhile
The steel grade is widely used to the final stage of steam turbine, second last stage blade, the front and back installation side of engine turbine and valve part,
Aircraft, military product manufacture in guided missile fastener；It is more to be also used to chemical industry equipment, pump shaft, helicopter deck, offshore platform etc.
Weak acid resistant, alkali and the high-strength parts of salt corrosion in kind field, and it is applied to the Turning of Slender Shaft in oil well logging field；Meanwhile
Applied to aerospace industry, space flight turbine blade, structural member important in reactor is applied in nuclear industry, in reactor
Lead screw in control rod drive mechanism (CRDM)；Especially have preferable resistant to hydrogen fluoric acid corrosive power, be China 300~
1000MW supercritical thermal power unit and the main of nuclear power unit steam turbine low-pressure final stage moving blade use one of material.
Solution heat treatment is to improve to carry out following process essential one to 05Cr17NiCu4Nb stainless steel optimization performance
Road heat treatment process eliminates uneven components, and after the cooling period its purpose is to be fully dissolved in alloying element in austenite
Supersaturated martensite is obtained, δ-ferrite content is inhibited, while playing the role of refining crystal grain and improving δ-ferrite form.When
The purpose of effect heat treatment is that precipitation-hardening phase is precipitated by precipitation, i.e. compound phase of the precipitation containing alloying element, to improve material
The intensity and hardness of material, and the control by the way that quantity and chemical combination compound type is precipitated, strength grade required for obtaining, especially
Mold 05Cr17NiCu4Nb stainless steel, user require solid solution and aging strengthening model delivery.But the 05Cr17NiCu4Nb is stainless
If steel solid solution and aging thermal treating process it is improper, frequently can lead to heat treatment steel billet solution treatment after there is a phenomenon where cracking,
Therefore to 05Cr17NiCu4Nb stainless steel carry out solid solution and aging strengthening model research be even more important.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of forging for being able to satisfy user to different size or rolled stock
The technical need of the mechanical property of material prevents from generating the 05Cr17Ni4Cu4Nb geneva of cracking phenomena because heat treatment process is improper
Body stainless steel.The present invention also provides a kind of techniques for carrying out hot reason to the 05Cr17Ni4Cu4Nb martensitic stain less steel
Method.
Used technical solution is to solve above-mentioned technical problem: 05Cr17Ni4Cu4Nb martensitic stain less steel, described
Martensitic stain less steel be the fixation rates stainless steel plate for including following weight parts component,
The parts by weight of component is C 0.040~0.055%, Si 0.20~0.40%, Mn 0.20~0.40%, Cr
15.1~15.45%, Ni 4.10~4.45%, Cu 3.10~3.40%, surplus be Fe and inevitable impurity,
The σ b of stainless steel plate after molten ageing treatment be 1431~1460MPa, σ 0.2 be 1235~1265MPa, A be 14~
19%, Z are that 60~75%, Ak is 34.35~37.47J, and HBW is 426~435, and comprehensive mechanical property is good.
Further, the inevitable impurity includes P and S,
Wherein, P≤0.025% by weight percentage, S≤0.005%.
It is a kind of for carrying out the process of hot reason, the technique to the 05Cr17Ni4Cu4Nb martensitic stain less steel
Method includes the solution heat treatment being sequentially arranged and aging strengthening model,
Wherein, the solution heat treatment includes at least solid solution the pre-heat treatment process, alloying element dissolution and metallographic structure
Adjust treatment process and the quenching treatment several steps of process.
Further, the aging strengthening model is artificial aging processing, detailed process is the base of processing to be quenched
Material be cooled to room temperature after, continued to be put into gas-fired car bottom furnace, and by 60 DEG C/the h rate of heat addition be heated to 520~540
DEG C, heat preservation comes out of the stove and is air-cooled to the room temperature completion artificial aging processing,
When wherein being kept the temperature in gas-fired car bottom furnace, heat preservation when 2.3~2.5 times of long-pressing blank outer diameter controlled,
Unit is minute.
The preferred mode of the above solution is that the solid solution the pre-heat treatment process carries out in the steps below,
Forging or rolling steel billet are put into gas-fired car bottom furnace and are heated to 700~760 DEG C by the rate of heat addition of 50 DEG C/h,
And the solid solution the pre-heat treatment process is completed to heat preservation in soaking 15 minutes after temperature,
Wherein, when the heat preservation of the heat preservation when long-pressing blank outer diameter Φ≤200mm, 40~60 minutes are kept the temperature；Blank outer diameter
When Φ > 200mm, keeps the temperature 80~100 minutes and control.
Further, it is to carry out in the steps below that the alloying element dissolution, which adjusts treatment process with metallographic structure,
,
Blank after solid solution the pre-heat treatment is heated to 1030~1050 DEG C by the rate of heat addition of 80 DEG C/h, arrives soaking after temperature
After 15 minutes and keeps the temperature and completes the alloying element dissolution and adjust treatment process with metallographic structure,
Wherein, the sectional area minute of 0.71~0.75 × blank of long-pressing controls when the heat preservation of the heat preservation.
The preferred mode of the above solution is that the quenching treatment process carries out in the steps below, by alloying element
Dissolution adjusts after the blank after treatment process is come out of the stove with metallographic structure and carries out water quenching immediately, and blank temperature reach 100 DEG C with
Water outlet is air-cooled to room temperature and completes the quenching treatment process after lower.
The beneficial effects of the present invention are: group of the application by effectively control 05Cr17Ni4Cu4Nb martensitic stain less steel
Point, and solution heat treatment and timeliness are sequentially carried out respectively by the stainless steel steel billet cloth obtained is smelted by above-mentioned control component
Heat treatment, and solid solution the pre-heat treatment process, alloying element dissolution and metallographic structure are being included at least in the solution heat treatment
Treatment process and the quenching treatment several steps of process are adjusted, not only meet forging or rolling of the user to different size in this way
The technical need of the mechanical property of material, moreover, because being had to the component of 05Cr17Ni4Cu4Nb martensitic stain less steel
Effect control, can also effectively prevent from generating cracking phenomena because heat treatment process is improper.
Specific embodiment
In order to solve the above technical problems existing in the prior art, provided by the invention a kind of to meet user to different rule
The technical need of the mechanical property of the forging or rolling stock of lattice prevents from generating cracking phenomena because heat treatment process is improper
05Cr17Ni4Cu4Nb martensitic stain less steel, and to the technique that the 05Cr17Ni4Cu4Nb martensitic stain less steel carries out hot reason
Method.The martensitic stain less steel is the fixation rates stainless steel plate for including following weight parts component,
The parts by weight of component is C 0.040~0.055%, Si 0.20~0.40%, Mn 0.20~0.40%, Cr
15.1~15.45%, Ni 4.10~4.45%, Cu 3.10~3.40%, surplus be Fe and inevitable impurity,
The σ b of stainless steel plate after molten ageing treatment be 1431~1460MPa, σ 0.2 be 1235~1265MPa, A be 14~
19%, Z are that 60~75%, Ak is 34.35~37.47J, and HBW is 426~435, and comprehensive mechanical property is good.The technique
Method includes the solution heat treatment being sequentially arranged and aging strengthening model,
Wherein, the solution heat treatment includes at least solid solution the pre-heat treatment process, alloying element dissolution and metallographic structure
Adjust treatment process and the quenching treatment several steps of process.The application is by effectively controlling 05Cr17Ni4Cu4Nb martensite not
The component of rust steel, and sequentially carried out the stainless steel steel billet cloth obtained is smelted at solution heat treatment and timeliness heat respectively
Reason, and adjusted including at least solid solution the pre-heat treatment process, alloying element dissolution in the solution heat treatment with metallographic structure
Treatment process and the quenching treatment several steps of process, not only meet forging or rolling stock of the user to different size in this way
Mechanical property technical need, moreover, because the component to 05Cr17Ni4Cu4Nb martensitic stain less steel has carried out effective control
System, can also effectively prevent from generating cracking phenomena because heat treatment process is improper.
In above embodiment, to avoid generating cracking phenomena when solution heat treatment and aging strengthening model as far as possible, this
Application has also carried out further control to inevitable impurity, i.e., the inevitable impurity includes P and S, wherein
P≤0.025% by weight percentage, S≤0.005%.Correspondingly, in order to improve efficiency described this Shen of aging strengthening model
It is please handled using artificial aging, detailed process is, after the blank of processing to be quenched is cooled to room temperature, is continued to be put into
In gas-fired car bottom furnace, and by 60 DEG C/the h rate of heat addition be heated to 520~540 DEG C, heat preservation, coming out of the stove is air-cooled to room temperature and completes institute
The artificial aging processing stated, wherein when being kept the temperature in gas-fired car bottom furnace, heat preservation when 2.3~2.5 times of long-pressing blank outer diameter
It is controlled, unit is minute.And the solid solution the pre-heat treatment process carries out in the steps below, by forging or rolled steel
Base is put into gas-fired car bottom furnace and is heated to 700~760 DEG C by the rate of heat addition of 50 DEG C/h, and it is pre- to keep the temperature the solid solution described in completing
Heat treatment procedure, wherein when the heat preservation of the heat preservation when long-pressing blank outer diameter Φ≤200mm, keep the temperature 40~60 minutes；Outside blank
When diameter Φ > 200mm, keeps the temperature 80~100 minutes and control.The alloying element dissolution, which adjusts treatment process with metallographic structure, is
It carries out in the steps below, the blank after solid solution the pre-heat treatment is heated to 1030~1050 DEG C by the rate of heat addition of 80 DEG C/h,
And keep the temperature and complete the alloying element dissolution and metallographic structure adjusting treatment process, wherein the long-pressing when heat preservation of the heat preservation
The sectional area minute of 0.71~0.75 × blank controls.The quenching treatment process carries out in the steps below, by alloy
Element dissolution carries out water quenching after coming out of the stove with the blank after metallographic structure adjusting treatment process immediately, and reaches 100 in blank temperature
DEG C or less after water outlet be air-cooled to room temperature and complete the quenching treatment process.
In conclusion using the 05Cr17Ni4Cu4Nb martensitic stain less steel of the application component, and by above-mentioned solid solution heat
After processing and aging strengthening model handle stainless steel, mechanical property fully meets requirement of the die steel to the blank.
Blank mechanical property after heat treatment are as follows: σ b:1431~1460MPa, σ 0.2:1235~1265MPa, A:14~19%, Z:60
~75%, Ak:34.35~37.47J, HBW:426~435, comprehensive mechanical property are preferable.
Embodiment 1
Table 1 is product technology requirement in embodiment 1
The requirement of 1 product technology of table
The present embodiment provides a kind of martensitic stain less steel 05Cr17Ni4Cu4Nb solid solution and ageing hot processing method, techniques
Process is equal are as follows: gas-fired car bottom furnace carry out 700~760 DEG C preheat and keep the temperature → continue be heated to 1030~1050 DEG C and keeping the temperature →
Water quenching of coming out of the stove to 100 DEG C → gas-fired car bottom furnace is lower than carries out 520~540 DEG C of timeliness, and keeps the temperature → comes out of the stove and be air-cooled to room temperature.
Specifically, by taking specification is the steel billet of Φ 200mm as an example, heat treatment process is as follows:
(1) solution heat treatment: blank, by branch cloth, should there is certain interval in gas-fired car bottom furnace between blank and blank,
No more than 3 layers of cloth.Blank is heated to 750 ± 10 DEG C of progress soaking heat treatments by 50 DEG C/h first, keeps the temperature 50 minutes；
Then, blank is heated to 1035 ± 10 DEG C by 95 DEG C/h, soaking 15 minutes, and keep the temperature 12 hours；Finally, by blank come out of the stove into
Row water quenching, water outlet is air-cooled to room temperature after blank temperature is lower than 100 DEG C.
(2) aging strengthening model: being put into gas-fired car bottom furnace for the blank for being air-cooled to room temperature and carry out ageing treatment, firstly, will
Blank is heated to 530 ± 10 DEG C by 60 DEG C/h, keeps the temperature 8 hours, then comes out of the stove and be air-cooled to room temperature.
Mechanical performance data according to the present embodiment product obtained is as shown in table 2:
Mechanical property after the solid solution of 2 product of table and aging strengthening model
By Tables 1 and 2 it is found that can satisfy the skill of product according to the mechanical property of the present embodiment method product obtained
Art requirement, and performance is stablized.
The martensitic stain less steel 05Cr17Ni4Cu4Nb produced using this heat treatment method, mechanics meet die steel work
Requirement in condition environment.
Claims (7)
1.05Cr17Ni4Cu4Nb martensitic stain less steel, it is characterised in that: the martensitic stain less steel be include following heavy
The fixation rates stainless steel plate of part component is measured,
The parts by weight of component is C 0.040~0.055%, Si 0.20~0.40%, Mn 0.20~0.40%, Cr
15.1~15.45%, Ni 4.10~4.45%, Cu 3.10~3.40%, surplus be Fe and inevitable impurity,
The σ b of stainless steel plate after molten ageing treatment be 1431~1460MPa, σ 0.2 be 1235~1265MPa, A be 14~
19%, Z are that 60~75%, Ak is 34.35~37.47J, and HBW is 426~435, and comprehensive mechanical property is good.
2. 05Cr17Ni4Cu4Nb martensitic stain less steel according to claim 1, it is characterised in that: described is inevitable
Impurity include P and S,
Wherein, P≤0.025% by weight percentage, S≤0.005%.
3. it is a kind of for carrying out the process of hot reason to 05Cr17Ni4Cu4Nb martensitic stain less steel described in claim 2,
Be characterized in that: the process includes the solution heat treatment being sequentially arranged and aging strengthening model,
Wherein, the solution heat treatment includes at least solid solution the pre-heat treatment process, alloying element dissolution is adjusted with metallographic structure
Treatment process and the quenching treatment several steps of process.
4. process according to claim 3, it is characterised in that: the aging strengthening model is artificial aging processing,
Its detailed process is, after the blank of processing to be quenched is cooled to room temperature, is continued to be put into gas-fired car bottom furnace, and presses 60
DEG C/the h rate of heat addition be heated to 520~540 DEG C, heat preservation, coming out of the stove is air-cooled to room temperature and completes the artificial aging processing,
When wherein being kept the temperature in gas-fired car bottom furnace, heat preservation when 2.3~2.5 times of long-pressing blank outer diameter controlled, unit
For minute.
5. process according to claim 3 or 4, it is characterised in that: the solid solution the pre-heat treatment process is to press
Step progress is stated,
Forging or rolling steel billet are put into gas-fired car bottom furnace and are heated to 700~760 DEG C by the rate of heat addition of 50 DEG C/h, to temperature
The solid solution the pre-heat treatment process is completed in heat preservation after soaking 15 minutes afterwards,
Wherein, when the heat preservation of the heat preservation when long-pressing blank outer diameter Φ≤200mm, 40~60 minutes are kept the temperature；Blank outer diameter Φ >
When 200mm, keeps the temperature 80~100 minutes and control.
6. process according to claim 5, it is characterised in that: the alloying element dissolution is adjusted with metallographic structure
Treatment process carries out in the steps below,
Blank after solid solution the pre-heat treatment is heated to 1030~1050 DEG C by the rate of heat addition of 80 DEG C/h, and is kept the temperature described in completion
Alloying element dissolution with metallographic structure adjust treatment process,
Wherein, the sectional area minute of 0.71~0.75 × blank of long-pressing controls when the heat preservation of the heat preservation.
7. process according to claim 6, it is characterised in that: the quenching treatment process be in the steps below into
Capable, water quenching is carried out immediately after alloying element dissolution is come out of the stove with the blank after metallographic structure adjusting treatment process, and in blank
Water outlet is air-cooled to room temperature and completes the quenching treatment process after temperature reaches 100 DEG C or less.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964889A (en) * | 2019-12-19 | 2020-04-07 | 陕西宏远航空锻造有限责任公司 | Method for heat treatment of 05Cr17Ni4Cu4Nb steam turbine low-pressure final stage blade blank |
| CN111118258A (en) * | 2020-01-20 | 2020-05-08 | 中国科学院金属研究所 | Heat treatment method for improving low-temperature impact toughness of 00Cr12Ni10MoTi maraging stainless steel |
| CN112430721A (en) * | 2020-11-03 | 2021-03-02 | 成都先进金属材料产业技术研究院有限公司 | Solution heat treatment method for preventing blade steel 0Cr17Ni4Cu4Nb from cracking |
| CN113510340A (en) * | 2021-08-10 | 2021-10-19 | 哈尔滨电气动力装备有限公司 | Welding and postweld heat treatment process method for martensite precipitation hardening stainless steel material |
| CN116875905A (en) * | 2023-08-15 | 2023-10-13 | 北京科技大学 | Antimicrobial and microbial corrosion resistant 17-4PH stainless steel and heat treatment method thereof |
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| CN110964889A (en) * | 2019-12-19 | 2020-04-07 | 陕西宏远航空锻造有限责任公司 | Method for heat treatment of 05Cr17Ni4Cu4Nb steam turbine low-pressure final stage blade blank |
| CN110964889B (en) * | 2019-12-19 | 2021-09-14 | 陕西宏远航空锻造有限责任公司 | Method for heat treatment of 05Cr17Ni4Cu4Nb steam turbine low-pressure final stage blade blank |
| CN111118258A (en) * | 2020-01-20 | 2020-05-08 | 中国科学院金属研究所 | Heat treatment method for improving low-temperature impact toughness of 00Cr12Ni10MoTi maraging stainless steel |
| CN111118258B (en) * | 2020-01-20 | 2021-09-24 | 中国科学院金属研究所 | Heat treatment method for improving low-temperature impact toughness of 00Cr12Ni10MoTi maraging stainless steel |
| CN112430721A (en) * | 2020-11-03 | 2021-03-02 | 成都先进金属材料产业技术研究院有限公司 | Solution heat treatment method for preventing blade steel 0Cr17Ni4Cu4Nb from cracking |
| CN113510340A (en) * | 2021-08-10 | 2021-10-19 | 哈尔滨电气动力装备有限公司 | Welding and postweld heat treatment process method for martensite precipitation hardening stainless steel material |
| CN116875905A (en) * | 2023-08-15 | 2023-10-13 | 北京科技大学 | Antimicrobial and microbial corrosion resistant 17-4PH stainless steel and heat treatment method thereof |
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