CN102990288B - Core secondary stainless steel body Forging Technology - Google Patents
Core secondary stainless steel body Forging Technology Download PDFInfo
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- CN102990288B CN102990288B CN201210293866.7A CN201210293866A CN102990288B CN 102990288 B CN102990288 B CN 102990288B CN 201210293866 A CN201210293866 A CN 201210293866A CN 102990288 B CN102990288 B CN 102990288B
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Abstract
The present invention relates to a kind of FMT of heavy caliber nuclear valve body, concretely, relate to a kind of core secondary stainless steel body Forging Technology.Concrete technology is as follows: choose Ф 630mm forged steel as blank; Use the recuperative heater through the harmonious test passes of furnace temperature, raw material are heated, overall process data record; Raw material are put into circle tire, riveting flange, fulling side; Heating; Put into V-block square for the raw material of riveting flange, fulling side one and carry out post bake; By punching cover stamping flange center blind hole; Carry out third time heating; The arc of body base is deducted with buckling die; Reconditioning, checks, shaping.The present invention carrys out forging molding by suitable frock, significantly improves stock utilization, improves valve overall performance, reduces processing capacity, reduces production cost significantly.
Description
Technical field
The present invention relates to a kind of FMT of heavy caliber nuclear valve body, concretely, relate to a kind of core secondary stainless steel body Forging Technology.
Background technology
Heavy caliber nuclear power high standard valve due to volume large, quality standard is high, and the general FMT of complete open die forging that adopts is produced, and profile meets by machining mode completely.Because raw material unit price is high, the stock utilization < 30% that this kind of mode is final, causes significant wastage.And forging flow lines is difficult to be retained, also there is certain influence to valve oeverall quality.
Summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of core secondary stainless steel body Forging Technology.
The technical solution used in the present invention is as follows:
1, the selection of blank: in order to better formed product, according to the analysis to product size cross section, chooses Ф 630mm forged steel;
2, use the recuperative heater through the harmonious test passes of furnace temperature, raw material are heated, overall process data record;
3, raw material are put into circle tire, riveting flange, fulling side;
4, the raw material behind riveting flange, fulling side are heated;
5, V-block is put into square for the raw material of riveting flange, fulling side one;
6, the raw material putting into V-block are carried out post bake;
7, by punching cover stamping flange center blind hole;
8, third time heating is carried out;
9, the arc of body base is deducted with buckling die;
10, reconditioning, checks, shaping.
Core secondary stainless steel body Forging Technology of the present invention is the one innovation in original FMT, meets the valve body blank part of final products dimensional performance demand.Carry out forging molding by suitable frock, significantly improve stock utilization, improve valve overall performance, reduce processing capacity, reduce production cost significantly.
Accompanying drawing explanation
Fig. 1 is core secondary stainless steel body Forging Technology raw material first time machining deformation side views;
Fig. 2 is core secondary stainless steel body Forging Technology raw material first time machining deformation top views;
Fig. 3 is core secondary stainless steel body Forging Technology raw material second time machining deformation figure;
Fig. 4 is core secondary stainless steel body Forging Technology raw material third time machining deformation figure;
Fig. 5 is core secondary stainless steel body Forging Technology instrument circle tire;
Fig. 6 is core secondary stainless steel body Forging Technology instrument V-block;
Fig. 7 is core secondary stainless steel body Forging Technology punch tool cover die;
Fig. 8 is core secondary stainless steel body Forging Technology punch tool cover die sectional view;
Fig. 9 is core secondary stainless steel body Forging Technology instrument buckling die;
Figure 10 is core secondary stainless steel body Forging Technology instrument buckling die sectional view;
Figure 11 is core secondary stainless steel body structural representation sketch.
Detailed description of the invention
The specific embodiments of core secondary stainless steel body Forging Technology of the present invention is as follows:
1, the selection of blank: in order to better formed product, according to the analysis to product size cross section, chooses Ф 630mm forged steel.
2, use the recuperative heater through the harmonious test passes of furnace temperature, raw material are heated, overall process data record.
3, raw material put into shown in Fig. 5 circle tire, riveting flange, fulling side, the state after distortion is shown in Fig. 1,2.
4, the raw material behind riveting flange, fulling side are heated.
5, put into the V-block shown in Fig. 6 square for the raw material of riveting flange, fulling side one, the state after distortion is shown in Fig. 3.
6, the raw material putting into V-block are carried out post bake.
7, by the punching cover stamping flange center blind hole shown in Fig. 7,8.
8, third time heating is carried out.
9, deduct the arc of body base with the buckling die shown in Fig. 8,9, Fig. 4 is shown in the state diagram after distortion.
10, reconditioning, check, shaping rear core secondary stainless steel valve body structure as shown in figure 11.
Claims (1)
1. core secondary stainless steel body Forging Technology, is characterized in that: specific embodiment,
(1) selection of blank: in order to better formed product, according to the analysis to product size cross section, chooses Ф 630mm forged steel;
(2) use the recuperative heater through the harmonious test passes of furnace temperature, heat raw material, overall process data are remembered
Record;
(3) raw material are put into circle tire, riveting flange, fulling side;
(4) raw material of heating behind riveting flange, fulling side;
(5) V type block is put into square for the raw material of riveting flange, fulling side one;
(6) raw material putting into V type block are carried out the 3rd heating;
(7) by punching cover stamping flange center blind hole;
(8) the 4th heating is carried out;
(9) arc of body base is deducted with buckling die;
(10) reconditioning, checks, shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293866.7A CN102990288B (en) | 2012-08-17 | 2012-08-17 | Core secondary stainless steel body Forging Technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210293866.7A CN102990288B (en) | 2012-08-17 | 2012-08-17 | Core secondary stainless steel body Forging Technology |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102990288A CN102990288A (en) | 2013-03-27 |
| CN102990288B true CN102990288B (en) | 2015-08-19 |
Family
ID=47919686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210293866.7A Active CN102990288B (en) | 2012-08-17 | 2012-08-17 | Core secondary stainless steel body Forging Technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN102990288B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105665608A (en) * | 2015-12-25 | 2016-06-15 | 大连大高阀门股份有限公司 | Forging technique for nuclear-grade F91 valve body |
| CN108458126A (en) * | 2018-02-05 | 2018-08-28 | 黄晓峰 | A kind of ball valve |
| CN113059103B (en) * | 2021-03-22 | 2022-06-28 | 无锡宏达重工股份有限公司 | Forming process of stainless steel pump body forge piece |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181932A (en) * | 1997-09-03 | 1999-03-26 | Honda Motor Co Ltd | Method of forming intake valve for engine |
| CN201306481Y (en) * | 2008-11-03 | 2009-09-09 | 大连大高阀门有限公司 | Nuclear grade one large-caliber forged steel full-flow swing type check valve |
| CN101737544A (en) * | 2010-01-12 | 2010-06-16 | 张轩 | Manufacturing method of ball valve body |
| CN102198481A (en) * | 2011-04-20 | 2011-09-28 | 大连大高阀门有限公司 | Technology for integrally forging valve with flange |
| RU2010123756A (en) * | 2010-06-10 | 2011-12-20 | Открытое акционерное общество "Тяжпрессмаш" (RU) | METHOD FOR MAKING HOLLOW FORGINGS FOR PRODUCT HOUSING TYPE BALL VALVES AND NUCLEAR REACTORS |
| CN102357646A (en) * | 2011-08-18 | 2012-02-22 | 贵州航天新力铸锻有限责任公司 | Method for forging nuclear-grade swing check valve body with high Cv value |
-
2012
- 2012-08-17 CN CN201210293866.7A patent/CN102990288B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1181932A (en) * | 1997-09-03 | 1999-03-26 | Honda Motor Co Ltd | Method of forming intake valve for engine |
| CN201306481Y (en) * | 2008-11-03 | 2009-09-09 | 大连大高阀门有限公司 | Nuclear grade one large-caliber forged steel full-flow swing type check valve |
| CN101737544A (en) * | 2010-01-12 | 2010-06-16 | 张轩 | Manufacturing method of ball valve body |
| RU2010123756A (en) * | 2010-06-10 | 2011-12-20 | Открытое акционерное общество "Тяжпрессмаш" (RU) | METHOD FOR MAKING HOLLOW FORGINGS FOR PRODUCT HOUSING TYPE BALL VALVES AND NUCLEAR REACTORS |
| CN102198481A (en) * | 2011-04-20 | 2011-09-28 | 大连大高阀门有限公司 | Technology for integrally forging valve with flange |
| CN102357646A (en) * | 2011-08-18 | 2012-02-22 | 贵州航天新力铸锻有限责任公司 | Method for forging nuclear-grade swing check valve body with high Cv value |
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| CN102990288A (en) | 2013-03-27 |
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| C14 | Grant of patent or utility model | ||
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Denomination of invention: Forging process of nuclear secondary stainless steel valve body Effective date of registration: 20230927 Granted publication date: 20150819 Pledgee: Dalian Branch of Shanghai Pudong Development Bank Co.,Ltd. Pledgor: DALIAN DV VALVE Co.,Ltd. Registration number: Y2023980059639 |