CN107641765A - A kind of nuclear power station integration heap top component forging and its manufacturing process - Google Patents
A kind of nuclear power station integration heap top component forging and its manufacturing process Download PDFInfo
- Publication number
- CN107641765A CN107641765A CN201610575516.8A CN201610575516A CN107641765A CN 107641765 A CN107641765 A CN 107641765A CN 201610575516 A CN201610575516 A CN 201610575516A CN 107641765 A CN107641765 A CN 107641765A
- Authority
- CN
- China
- Prior art keywords
- nuclear power
- power station
- forging
- top component
- manufacturing process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Forging (AREA)
Abstract
The present invention provides a kind of nuclear power station integration heap top component forging and its manufacturing process, and each chemical composition proportion is in its material：Cr：0.80% ~ 0.90%, Mo：0.20% ~ 0.25%, C：0.43, Si：0.31, Mn：0.67, P：0.014, S：0.007, Ni：1.65% ~ 2.00%, the flange forge piece of resistant to hydrogen steel material provided by the invention, adjustment Ni content, lifts material quenching degree, can be effectively improved low temperature impact properties in terms of chemical composition, in forging process, technique is pulled out using multiple Upsetting, the impact property of material is improved, is initially heat-treated using normalizing in heat treatment process, improve subsequent thermal effectiveness, and improve the quenching degree of material after being heat-treated using liquid cooling.
Description
Technical field
The invention mainly relates to metal forging field, more particularly to a kind of nuclear power station integration heap top component forging and its
Manufacturing process.
Background technology
Three of China, Haiyang and Lufeng nuclear power station are built using the AP1000 nuclear power technologies of US Westinghouse company,
Belong to generation Ⅲ nuclear power station, wherein nuclear power station integration uses 42CrMo materials to forging used in top component, has preferable through hardening
Property, but it is more than 200mm forging for thickness, and the performance of forging center portion and 1/4T thickness sampling points, especially low-temperature impact
Work(is difficult to reach standard requirement, but nuclear power station integration is much larger than 200mm to top component size, while technical conditions are to material clip
Debris is it is also proposed that require, it is desirable to C classes and D classes non-metallic inclusion≤1.0 grade.
The content of the invention
The present invention provides a kind of nuclear power station integration heap top component forging, and each chemical composition proportion is in its material：Cr：
0.80% ~ 0.90%, Mo：0.20% ~ 0.25%, C：0.43, Si：0.31, Mn：0.67, P：0.014, S：0.007, Ni：
1.65% ~ 2.00%.
Present invention also offers the manufacturing process for producing above-mentioned nuclear power station integration heap top component forging, including smelting
Refining, forging, heat treatment.Including smelting, forging, being heat-treated.
Preferably, the heat treatment uses：Normalizing is initially heat-treated, quenches and temper, initial normalizing heat treatment plus
Hot temperature is 840 DEG C ~ 880 DEG C, and hardening heat is 840 DEG C ~ 870 DEG C, and temperature is 520 DEG C ~ 710 DEG C.
Preferably, taken in forging process at least twice Upsetting pull out technique.
Preferably, liquid cooling is used after quenching.
Beneficial effects of the present invention：The flange forge piece of resistant to hydrogen steel material provided by the invention, chemical composition aspect adjustment Ni
Content, lifted material quenching degree, low temperature impact properties can be effectively improved, in forging process, technique is pulled out using multiple Upsetting,
The impact property of material is improved, is initially heat-treated using normalizing in heat treatment process, improves subsequent thermal effectiveness, and at heat
The quenching degree of material is improved after reason using liquid cooling.
Embodiment
In technical scheme provided by the invention, steel ingot raw material should use aluminium deoxidation inherent fine grain
Steel, small grains is obtained as far as possible in manufacturing process, each chemical composition proportion is in material：
Cr：0.80% ~ 0.90%, Mo：0.20% ~ 0.25%, C：0.43, Si：0.31, Mn：0.67, P：0.014, S：
0.007, Ni：1.65% ~ 2.00%, Ni can lift material quenching degree, can be effectively improved low temperature impact properties.
Present invention also offers the manufacturing process for producing above-mentioned nuclear power station integration heap top component forging, including smelting
Refining, forging, it is heat-treated, in smelting process, Fruit storage should be carried out, electroslag remelting twice is carried out after steel ingot cooling, improve
Raw material degree of purity.
Preferably, in forging technology, steel ingot is fully forged, eliminates as-cast structure, tiny flaw is closed in forging, and increase material causes
Density, these measures can greatly improve the impact property of material, and taken in forging process at least twice Upsetting pull out technique, total forging
Making not less than 6, increases the deflection of last fire time, it is desirable to which last fiery deflection is not less than the 20% of total deformation.
Preferably, the heat treatment is initially heat-treated using a normalizing first, for improving subsequent thermal effectiveness,
Then being quenched again and temper, initial normalizing heat treatment heating-up temperature is 840 DEG C ~ 880 DEG C, hardening heat is 840 DEG C ~
870 DEG C, temperature is 520 DEG C ~ 710 DEG C, and normalizing and Quenching Soaking Time are calculated by 1.2 ~ 1.5min/mm, and tempering time is pressed
2.5 ~ 3.0min/mm is calculated, minimum to be no less than 2 hours.
Preferably, liquid cooling is used after heat treatment, for improving material quenching degree while avoiding temper brittleness, and is quenched
Cooling bay is sufficiently large for improving quenching cooling velocity.
The principle and its effect of above-described embodiment only illustrative present patent application, not for limitation this patent Shen
Please.Any person skilled in the art can all be carried out under the spirit and scope without prejudice to present patent application to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in present patent application
God is covered with all equivalent modifications or change, the claim that should be asked by this patent completed under technological thought.
Claims (5)
- A kind of 1. nuclear power station integration heap top component forging, it is characterised in that：Each chemical composition proportion is in its material：Cr： 0.80% ~ 0.90%, Mo：0.20% ~ 0.25%, C：0.43, Si：0.31, Mn：0.67, P：0.014, S：0.007, Ni： 1.65% ~ 2.00%.
- 2. a kind of manufacturing process of nuclear power station integration heap top component forging for described in claim 1, including smelt, forge Make, be heat-treated.
- 3. the manufacturing process of nuclear power station integration heap top component forging according to claim 2, it is characterised in that：At the heat Reason uses：Normalizing is initially heat-treated, quenches and temper, and initial normalizing heat treatment heating-up temperature is 840 DEG C ~ 880 DEG C, quenching Temperature is 840 DEG C ~ 870 DEG C, and temperature is 520 DEG C ~ 710 DEG C.
- 4. the manufacturing process of nuclear power station integration heap top component forging according to claim 2, it is characterised in that：Forging During take at least twice Upsetting pull out technique.
- 5. the manufacturing process of nuclear power station integration heap top component forging according to claim 3, it is characterised in that：Quenching Liquid cooling is used afterwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610575516.8A CN107641765A (en) | 2016-07-21 | 2016-07-21 | A kind of nuclear power station integration heap top component forging and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610575516.8A CN107641765A (en) | 2016-07-21 | 2016-07-21 | A kind of nuclear power station integration heap top component forging and its manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107641765A true CN107641765A (en) | 2018-01-30 |
Family
ID=61109652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610575516.8A Pending CN107641765A (en) | 2016-07-21 | 2016-07-21 | A kind of nuclear power station integration heap top component forging and its manufacturing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107641765A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359902A (en) * | 2018-04-08 | 2018-08-03 | 无锡市法兰锻造有限公司 | A kind of high performance alloys steel flange and forging and its manufacturing method |
| CN110306113A (en) * | 2019-07-24 | 2019-10-08 | 郑州煤机智能工作面科技有限公司 | A kind of piston shoes cast steel material and casting method |
| CN110408856A (en) * | 2019-09-09 | 2019-11-05 | 郑州煤机智能工作面科技有限公司 | A kind of founding materials and its casting method for coalcutter torque axis |
| CN110605352A (en) * | 2019-11-04 | 2019-12-24 | 贵州航天新力铸锻有限责任公司 | Manufacturing method of lower spring end plate of annular forging |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812645A (en) * | 2010-04-02 | 2010-08-25 | 张家港海陆环形锻件有限公司 | Ring forge piece material of wind power rotary supporting ring and ring forge piece manufacturing technology thereof |
| CN102029347A (en) * | 2010-12-29 | 2011-04-27 | 中原特钢股份有限公司 | Manufacturing method of gear shaft forge piece for offshore drilling platform |
-
2016
- 2016-07-21 CN CN201610575516.8A patent/CN107641765A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812645A (en) * | 2010-04-02 | 2010-08-25 | 张家港海陆环形锻件有限公司 | Ring forge piece material of wind power rotary supporting ring and ring forge piece manufacturing technology thereof |
| CN102029347A (en) * | 2010-12-29 | 2011-04-27 | 中原特钢股份有限公司 | Manufacturing method of gear shaft forge piece for offshore drilling platform |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359902A (en) * | 2018-04-08 | 2018-08-03 | 无锡市法兰锻造有限公司 | A kind of high performance alloys steel flange and forging and its manufacturing method |
| CN110306113A (en) * | 2019-07-24 | 2019-10-08 | 郑州煤机智能工作面科技有限公司 | A kind of piston shoes cast steel material and casting method |
| CN110306113B (en) * | 2019-07-24 | 2020-09-18 | 郑州煤机智能工作面科技有限公司 | Cast steel material for sliding shoe and casting method |
| CN110408856A (en) * | 2019-09-09 | 2019-11-05 | 郑州煤机智能工作面科技有限公司 | A kind of founding materials and its casting method for coalcutter torque axis |
| CN110605352A (en) * | 2019-11-04 | 2019-12-24 | 贵州航天新力铸锻有限责任公司 | Manufacturing method of lower spring end plate of annular forging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6574307B2 (en) | High toughness seamless steel pipe and manufacturing method thereof | |
| CN105506494B (en) | A kind of yield strength 800MPa grade high ductilities hot-rolling high-strength steel and its manufacture method | |
| CN106917032B (en) | The method that reactor pressure vessel steels large thick-wall forging promotes low-temperature impact work | |
| CN102719761B (en) | Wheel disc forging and manufacturing method thereof | |
| WO2018090682A1 (en) | High hardenability, medium carbon, low alloy round steel for fasteners and manufacturing method therefor | |
| CN101713054B (en) | Large thickness steel plate for hydrogenation reaction chamber reeling equipment and production method thereof | |
| CN102146547B (en) | Alloy steel roller and manufacturing process thereof | |
| CN106756509B (en) | A kind of high-temperature alloy structural steel and its Technology for Heating Processing | |
| CN109112423B (en) | Super-thick alloy steel plate with excellent low-temperature toughness and preparation method thereof | |
| CN109423577B (en) | High-strength multi-phase steel tinning raw plate and manufacturing method thereof | |
| CN107747032A (en) | Aviation high-toughness long-life large rotor forged shaft manufacturing process | |
| CN103014510B (en) | High-strength cold-extrusion die steel and processing technology thereof | |
| CN103205645A (en) | Superlarge thickness hydrogen chromium molybdenum steel plate for hydrogenation equipment and manufacture method thereof | |
| CN101333624B (en) | Anti-H2S stress corrosion high pressure resistant forgings and method for manufacturing same | |
| CN107641765A (en) | A kind of nuclear power station integration heap top component forging and its manufacturing process | |
| CN103361567A (en) | Steel for pressurized water reactor nuclear power station voltage stabilizer and manufacturing method thereof | |
| CN105063291A (en) | Thermal processing method improving impact resistance of 13Cr9Mo2Co1NiVNbNB forged piece | |
| CN102864379A (en) | Fe-Cr-Co-W-Mo martensitic heat resistant steel and method for manufacturing same | |
| CN104694832A (en) | Martensitic stainless steel for nuclear reactor and preparation method of stainless steel | |
| CN102191437B (en) | Seamless steel tube for petroleum cracking and heat treatment method thereof | |
| CN105018862A (en) | High-toughness steel plate 140 mm thick and manufacturing method thereof | |
| CN115181913B (en) | Preparation method of low-manganese-content medium-manganese steel | |
| CN103334064B (en) | Low yield ratio chromium-molybdenum steel plate and production method thereof | |
| CN107641755A (en) | A kind of forging and its manufacturing process with high/low-temperature impact performance | |
| CN109518079A (en) | A kind of production method of hydrogen-contacting equipment 15CrMoR steel plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180130 |