CN102732706B - Spot annealing unit for large swaging weldment and annealing method thereof - Google Patents
Spot annealing unit for large swaging weldment and annealing method thereof Download PDFInfo
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- CN102732706B CN102732706B CN201210192996.1A CN201210192996A CN102732706B CN 102732706 B CN102732706 B CN 102732706B CN 201210192996 A CN201210192996 A CN 201210192996A CN 102732706 B CN102732706 B CN 102732706B
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- 238000000137 annealing Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005242 forging Methods 0.000 claims description 34
- 239000003034 coal gas Substances 0.000 claims description 13
- 239000011449 brick Substances 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 11
- 239000004927 clay Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000004513 sizing Methods 0.000 abstract 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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Abstract
The invention discloses a spot annealing unit for a large swaging weldment and an annealing method thereof. The spot annealing unit comprises a furnace body, wherein the two ends of the furnace body are respectively provided with a flue and a gas burner, the gas burner is arranged on the furnace body through a burner block, the interior of the furnace body is provided with an area to be annealed, a workpiece of the part to be annealed in the area to be annealed is arranged on a sizing block, and the sizing block is fixed on the inner bottom of the furnace body, a non-annealed area is positioned at the top end of the furnace body and above the area to be annealed, the part with no need of annealing of the workpiece is arranged in the non-annealed area, and a first furnace lid and a second furnace lid are arranged above the furnace body and at the two sides of non-annealed area. According to the invention, practical application shows that the spot annealing unit of the invention has good effect, no influence on the swaging shaft portion; actual measurement shows that weld parts meet the stress annealing temperature requirement, simultaneously the processing problem of ultra-large parts is solved, and the cost of processing parts is greatly reduced.
Description
Technical field
The present invention relates to metallurgical equipment and manufacture field, especially relate to a kind of local annealing device for Large-scale Forging weldment and method for annealing thereof.
Background technology
For the local destressing annealing of large-scale soldering part, the methods that adopt the heating of ceramic heat band parcel at present more, although this kind of method is easy to use, but exist, heats is affected by environment greatly, ceramic heat piece element is fragile, equipment and spare part cost is high, destressing effect can not show a candle to the shortcomings such as annealing, is not therefore widely adopted.The heavy parts that is particularly smithwelding part for some, according to normal process requirement, need will carry out integrally annealed reprocessing after forging axle and Plate Welding, but after welding, one-piece parts is bulky, and processing units is very limited, and is more difficult to the annealing of this kind of heavy parts.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of local annealing device for Large-scale Forging weldment and method for annealing thereof for problems of the prior art, its objective is by the adjustment of heavy parts technique and the application of local destressing annealing device to for smithwelding part, make weld reach the requirement of stress relief annealing temperature, guarantee to forge axial region and can not be affected.
Technical scheme of the present invention is that this kind comprises body of heater for the local annealing device of Large-scale Forging weldment, the two ends of described body of heater are respectively equipped with flue, coal gas burner, and described coal gas burner is arranged on body of heater by burner block, the inside of described body of heater is provided with treats annealing region, the described workpiece for the treatment of annealing portion in annealing region for the treatment of is arranged on parallels, and described parallels is fixed in the inner bottom surface of body of heater, be positioned at the top of body of heater and be positioned at and treat that the top of annealing region is unannealed region, do not need the workpiece of annealing portion to be placed in unannealed region; The both sides that are positioned at the top of body of heater and are positioned at unannealed region are provided with the first bell, the second bell.
In described He Dai annealing region, unannealed region, be equipped with the temperature measuring equipment of temperature in control area.
The inside of described body of heater is provided with the firebreak of avoiding flame directly to burn temperature in workpiece and even stove, and firebreak is distributed in the bottom of body of heater and body of heater is interior and bottom vertical setting.
Stand on the clay brick that the firebreak in body of heater is individual layer, being positioned at bottom of furnace body has double-layer structure, is followed successively by light weight fireclay brick, clay brick.
Be positioned on the surrounding inwall of body of heater and top inwall and be equipped with refractory fibre, refractory fibre fills up the gap between the first bell and the second bell and Large-scale Forging weldment.
Utilize above-mentioned method of annealing for the local annealing device of Large-scale Forging weldment to comprise:
1) first forging shaft portion is machined, then welding steel part, the making of Large-scale Forging weldment completed;
2) the first bell and the second bell are pulled down, packed into the Large-scale Forging weldment for the treatment of spot anneling, and will need spot anneling part workpiece to be placed on the parallels for the treatment of in annealing region;
3) close the first bell and the second bell, the gap refractory fibre jam-pack between the first bell and the second bell and Large-scale Forging weldment;
4) in He Dai annealing region, unannealed region, point for measuring temperature is set respectively, needs annealing region temperature to control, the temperature of grasping simultaneously and controlling in unannealed region can not be too high;
5) open coal gas burner, can carry out the spot anneling of welding region.
In heating and insulating process, the temperature showing by point for measuring temperature can be adjusted coal gas burner in good time, to guarantee that the temperature in annealing region to be treated meets annealing requirement, guarantees that the temperature in unannealed region can not be too high simultaneously.
This kind with said structure has the following advantages for local annealing device and the method for annealing thereof of Large-scale Forging weldment:
1. this kind is good through practical application effect for the local annealing device of Large-scale Forging weldment, forges axial region and is not affected, and through actual measurement, weld reaches stress relief annealing temperature requirement.
2. this kind passes through the adjustment of this part process and the application of local destressing annealing device for the local annealing device of Large-scale Forging weldment, general conventional machining equipment can complete the making of this type of ultra-large type smithwelding class (welded construction class) part, solve a processing difficult problem for super spare parts, greatly reduced the cost of part processing and fabricating.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is structural representation of the present invention.
Fig. 2 is the plan structure schematic diagram of structure shown in Fig. 1.
In Fig. 1-2,1: flue; 2: body of heater; 3: light weight fireclay brick; 4: parallels; 5: clay brick; 6: burner block; 7: refractory fibre; 8: coal gas burner; 9: the first bells; 10: the second bells; 11: unannealed region; 12: treat annealing region.
Embodiment
From structure shown in Fig. 1 and Fig. 2 in conjunction with, this kind comprises body of heater 2 for the local annealing device of Large-scale Forging weldment, the two ends of body of heater 2 are respectively equipped with flue 1, coal gas burner 8, and coal gas burner 8 is arranged on body of heater 2 by burner block 6, the inside of body of heater 2 is provided with treats annealing region 12, treat that the workpiece for the treatment of annealing portion in annealing region 12 is arranged on parallels 4, and parallels 4 is fixed in the inner bottom surface of body of heater 2, be positioned at the top of body of heater 2 and be positioned at and treat that the top of annealing region 12 is unannealed region 11, workpiece does not need the part of annealing to be placed in unannealed region 11; The both sides that are positioned at the top of body of heater 2 and are positioned at unannealed region 11 are provided with the first bell 9, the second bell 10.
In 11He Dai annealing region, unannealed region 12, be equipped with the temperature measuring equipment of temperature in control area.In heating and insulating process, the temperature showing by point for measuring temperature can be adjusted coal gas burner 8 in good time, to guarantee that the temperature in annealing region 12 to be treated meets annealing requirement, guarantees that the temperature in unannealed region 11 can not be too high simultaneously.
The inside of body of heater 2 is provided with the firebreak of avoiding flame directly to burn temperature in workpiece and even stove, and firebreak is distributed in the bottom of body of heater 2 and body of heater 2 is interior and bottom vertical setting.Stand on the clay brick that the firebreak in body of heater 2 is individual layer, being positioned at body of heater 2 bottoms has double-layer structure, is followed successively by light weight fireclay brick 3, clay brick 5.
Be positioned on the surrounding inwall of body of heater 2 and top inwall and be equipped with refractory fibre 7.
Utilize above-mentioned method of annealing for the local annealing device of Large-scale Forging weldment to comprise:
1) first forging shaft portion is machined, then welding steel part, the making of Large-scale Forging weldment completed;
2) the first bell 9 and the second bell 10 are pulled down, packed into the Large-scale Forging weldment for the treatment of spot anneling, and by the parallels 4 that needs spot anneling part workpiece to be placed in to treat in annealing region 12;
3) refractory fibre 7 jam-packs for the gap of closing between the first bell 9 and the second bell 10, the first bells 9 and the second bell 10 and Large-scale Forging weldment;
4) in 11He Dai annealing region, unannealed region 12, point for measuring temperature is set respectively, needs annealing region temperature to control, the temperature of grasping simultaneously and controlling in unannealed region 11 can not be too high;
5) open coal gas burner 8, can carry out the spot anneling of welding region.
This kind is good through practical application effect for the local annealing device of Large-scale Forging weldment, forges axial region and is not affected, and through actual measurement, weld reaches stress relief annealing temperature requirement; Simultaneously, by the adjustment of this part process and the application of local destressing annealing device, general conventional machining equipment can complete the making of this type of ultra-large type smithwelding class (welded construction class) part, has solved a processing difficult problem for super spare parts, has greatly reduced the cost of part processing and fabricating.
Claims (8)
1. the local annealing device for Large-scale Forging weldment, it is characterized in that: described local annealing device comprises body of heater (2), the two ends of described body of heater (2) are respectively equipped with flue (1), coal gas burner (8), and described coal gas burner (8) is arranged on body of heater (2) by burner block (6), the inside of described body of heater (2) is provided with treats annealing region (12), the described workpiece for the treatment of annealing portion in annealing region (12) for the treatment of is arranged on parallels (4), and described parallels (4) is fixed in the inner bottom surface of body of heater (2), be positioned at the top of body of heater (2) and be positioned at and treat that the top of annealing region (12) is unannealed region (11), workpiece does not need the part of annealing to be placed in unannealed region (11), the both sides that are positioned at the top of body of heater (2) and are positioned at unannealed region (11) are provided with the first bell (9), the second bell (10).
2. a kind of local annealing device for Large-scale Forging weldment according to claim 1, is characterized in that: described unannealed region (11) and treat to be equipped with in annealing region (12) temperature measuring equipment of temperature in control area.
3. a kind of local annealing device for Large-scale Forging weldment according to claim 1 and 2, it is characterized in that: the inside of described body of heater (2) is provided with the firebreak of avoiding flame directly to burn temperature in workpiece and even stove, and firebreak is distributed in the bottom of body of heater (2) and body of heater (2) is interior and bottom vertical setting.
4. a kind of local annealing device for Large-scale Forging weldment according to claim 3, it is characterized in that: stand on the clay brick that the firebreak in body of heater (2) is individual layer, being positioned at body of heater (2) bottom has double-layer structure, is followed successively by light weight fireclay brick (3), clay brick (5).
5. according to a kind of local annealing device for Large-scale Forging weldment described in claim 1,2,4 any one claims, it is characterized in that: be positioned on the surrounding inwall of body of heater (2) and top inwall and be equipped with refractory fibre (7), refractory fibre (7) fills up the gap between the first bell (9) and the second bell (10) and Large-scale Forging weldment.
6. a kind of local annealing device for Large-scale Forging weldment according to claim 3, it is characterized in that: be positioned on the surrounding inwall of body of heater (2) and top inwall and be equipped with refractory fibre (7), refractory fibre (7) fills up the gap between the first bell (9) and the second bell (10) and Large-scale Forging weldment.
7. the method for utilizing the local annealing device for Large-scale Forging weldment described in claim 1-6 any one claim to anneal, is characterized in that: described method for annealing comprises,
1) first forging shaft portion is machined, then welding steel part, the making of Large-scale Forging weldment completed;
2) the first bell (9) and the second bell (10) are pulled down, packed into the Large-scale Forging weldment for the treatment of spot anneling, and treat on the parallels (4) in annealing region (12) needing spot anneling part workpiece to be placed in;
3) close the first bell (9) and the second bell (10), refractory fibre for gap (7) jam-pack between the first bell (9) and the second bell (10) and Large-scale Forging weldment;
4) in unannealed region (11) with treat that annealing region (12) arranges respectively point for measuring temperature, need annealing region temperature to control, the temperature of grasping simultaneously and controlling in unannealed region (11) can not be too high;
5) open coal gas burner (8), can carry out the spot anneling of welding region.
8. method for annealing according to claim 7, it is characterized in that: in heating and insulating process, the temperature showing by point for measuring temperature, can adjust coal gas burner (8) in good time, to guarantee treating that the temperature in annealing region (12) meets annealing requirement, guarantee that the temperature in unannealed region (11) can not be too high simultaneously.
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| CN201210192996.1A CN102732706B (en) | 2012-06-12 | 2012-06-12 | Spot annealing unit for large swaging weldment and annealing method thereof |
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| CN201210192996.1A CN102732706B (en) | 2012-06-12 | 2012-06-12 | Spot annealing unit for large swaging weldment and annealing method thereof |
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| CN102732706B true CN102732706B (en) | 2014-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864296A (en) * | 2012-10-19 | 2013-01-09 | 哈尔滨工业大学 | Gradient heat treatment device |
| CN105274307A (en) * | 2015-11-13 | 2016-01-27 | 兰州飞行控制有限责任公司 | Local annealing heat treatment method for small part |
| CN109652629A (en) * | 2019-01-28 | 2019-04-19 | 山东钢铁股份有限公司 | A kind of annealing device and method for annealing for steel alloy large round billet |
| CN110396590B (en) * | 2019-08-29 | 2020-12-08 | 中国石油大学(华东) | Local heat treatment method for large pressure container |
| CN116356224A (en) * | 2023-04-04 | 2023-06-30 | 湖南云箭集团有限公司 | Nonferrous metal local annealing equipment and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886479Y (en) * | 2006-02-21 | 2007-04-04 | 李巍 | Heating furnace for partial annealing |
| CN202705419U (en) * | 2012-06-12 | 2013-01-30 | 马钢(集团)控股有限公司 | Local annealing device used for large forge welding piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2886479Y (en) * | 2006-02-21 | 2007-04-04 | 李巍 | Heating furnace for partial annealing |
| CN202705419U (en) * | 2012-06-12 | 2013-01-30 | 马钢(集团)控股有限公司 | Local annealing device used for large forge welding piece |
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Inventor after: Xu Dean Inventor after: Gao Anyang Inventor after: Wu Yundong Inventor after: Wei Tingzhi Inventor after: Pan Longbo Inventor after: Li Shuang Inventor before: Xu Dean Inventor before: Gao Anyang Inventor before: Wu Yundong Inventor before: Wei Tingzhi Inventor before: Chen Kaizhi Inventor before: Pan Longbo Inventor before: Li Shuang |
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Free format text: CORRECT: INVENTOR; FROM: XU DEAN GAO ANYANG WU YUNDONG WEI TINGZHI CHEN KAIZHI PAN LONGBO LI SHUANG TO: XU DEAN GAO ANYANG WU YUNDONG WEI TINGZHI PAN LONGBO LI SHUANG |
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Effective date of registration: 20170612 Address after: 243000 Ma'anshan economic and Technological Development Zone, Anhui, Lake Road, No. 499 Patentee after: THE MASTEEL HEAVY MACHINERY MANUFACTURING COMPANY OF ANHUI Address before: 243003 Anhui city of Ma'anshan province Jiuhua Mountain Rain Road No. 8 Co-patentee before: Ma'anshan Iron and Steel Co., Ltd. Patentee before: Magang (Group) Holding Company Ltd. |
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Address after: 243000 Department of intellectual property right of Hunan West Road No. 8 technology center, Ma'anshan City, Anhui Province Patentee after: THE MASTEEL HEAVY MACHINERY MANUFACTURING COMPANY OF ANHUI Address before: 243000 Ma'anshan economic and Technological Development Zone, Anhui, Lake Road, No. 499 Patentee before: THE MASTEEL HEAVY MACHINERY MANUFACTURING COMPANY OF ANHUI |