CN105665609A - Forming technology of valve body - Google Patents
Forming technology of valve body Download PDFInfo
- Publication number
- CN105665609A CN105665609A CN201610113866.2A CN201610113866A CN105665609A CN 105665609 A CN105665609 A CN 105665609A CN 201610113866 A CN201610113866 A CN 201610113866A CN 105665609 A CN105665609 A CN 105665609A
- Authority
- CN
- China
- Prior art keywords
- blank
- valve body
- moulding process
- forging
- body according
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/20—Making machine elements valve parts
- B21K1/24—Making machine elements valve parts valve bodies; valve seats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
- B21J1/02—Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
Abstract
The invention relates to a forming technology of a valve body. The forming technology comprises the following technical steps: (1), heating a blank to a temperature between 1120 DEG C and 1180 DEG C; (2), placing the blank heated in step (1) into a primary blank die cavity, and then, carrying out die clamping and pressing processing so as to form a primary blank; (3), placing the primary blank obtained in step (2) into a final forging die cavity, and further carrying out forging processing until appearance and size meet design requirements; and (4), trimming and cooling the blank forged in step (3) so as to finish the forming of the valve body. Production cycle can be effectively shortened, and material losses are reduced. At the same time, secondary heating is not required, cost is saved, and efficiency is improved.
Description
Technical field
The present invention relates to the moulding process of a kind of valve body.
Background technology
It is known that, for difform valve body (shape matching is complicated), the process of its forging molding also very loaded down with trivial details, existing technique is: adopt twice forging molding (heating-open die forging-ejection-heating-die forging-trimming), and wherein first time forging is open die forging; Second time forging is die forging, and what two operating process were independent from, and after the blank of the direct outsourcing first time open die forging molding of most of producer, carrying out die forging.
Obviously, there is following defect in above-mentioned forming operation:
1), the blank shape of outsourcing cavity dimension when being difficult to molding be close, cause second time to forge processing work, inconvenience very;
2), needing twice blank to be heated, not only energy consumption is relatively big, and the production cycle is long, and production efficiency is low, and production cost is higher;
3), produced waste material more, cause the waste of material.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide the moulding process of a kind of brand-new valve body.
For reaching above-mentioned purpose, the invention provides the moulding process of a kind of valve body, this moulding process step is as follows:
(1), blank is heated so that it is temperature is 1150 DEG C ± 30 DEG C;
(2), the blank after heating in step (1) is put into just mold chamber, then mould is carried out card pressure process so that form just base;
(3), by the first base in step (2) in putting into finish-forging die cavity, conducting forging processing is further carried out so that profile and size meet designing requirement;
(4), the blank of forging molding in step (3) is carried out trimming, cooling, complete the molding of valve body.
Preferably, in step (1), the temperature after blank heating is 1150 DEG C.
One according to the present invention is embodied as and preferred aspect, after step (2), first puts in blocking die cavity by first base, carry out blocking, the profile making blank is identical with the shape of designing requirement, then places in finish-forging die cavity, further carries out conducting forging processing.
Preferably, in the trimming process of step (4), the temperature of its blank is 850 DEG C ± 50 DEG C, and wherein 850 DEG C is best, trimming now, it is possible to effectively prevent raw-material drawing crack in trimming process.
One according to the present invention is embodied as and preferred aspect, after step (1), first the oxide layer of blank periphery is removed, and is then placed in just mold chamber.Guarantee the quality of product.
Preferably, by beaing blank surface so that the oxide layer sticking to blank surface comes off naturally.
Compared to prior art, present invention have the advantage that
The present invention can effectively reduce the production cycle, reduces the loss of material, simultaneously, it is not necessary to post bake, saves cost, improves efficiency.
Detailed description of the invention
Present embodiments provide the moulding process of valve body. Concrete moulding process step is as follows:
(1), blank is heated so that it is temperature is 1150 DEG C ± 30 DEG C;
(2), the blank after heating in step (1) is put into just mold chamber, then mould is carried out card pressure process so that form just base;
(3), by the first base in step (2) in putting into finish-forging die cavity, conducting forging processing is further carried out so that profile and size meet designing requirement;
(4), the blank of forging molding in step (3) is carried out trimming, cooling, complete the molding of valve body.
In this example, the material of blank is structural alloy steel, and in step (1), the temperature after blank heating is 1150 DEG C. Meet blank brake forming, reduce the stress of blank resistance to deformation, it is simple to blank is put in first mold chamber.
Further, owing to, in the heating process of blank, surface can form oxide layer, if not removing, the quality of product will be directly affects.
Therefore, in this example, by card pressed compact material so that the oxide layer sticking to blank surface comes off naturally, reduce the oxide skin impact on product surface quality.
Meanwhile, for ease of the accuracy of the shaping efficiency of product and compact dimensions, in this example, after step (2), first first base is put in blocking die cavity, carry out blocking, the profile making blank is identical with the shape of designing requirement, then places in finish-forging die cavity, further carries out conducting forging processing.
Additionally, in the trimming process of step (4), the temperature of its blank is 850 DEG C, it is prevented that by raw-material drawing crack in trimming process.
After trimming completes, product being cooled down, select the type of cooling according to unlike material, the general material type of cooling is air cooling.
In sum, after adopting the moulding process of the application, it is present in following advantage:
1), the molding of valve body do not need post bake, reduce energy consumption, reduce the production cycle simultaneously, improve production efficiency;
2), the course of processing is simplified so that the molding of valve body is relatively easy, convenient;
3), save material loss, reduce cost.
Above-described embodiment is only for illustrating technology design and the feature of the present invention; its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this; can not limit the scope of the invention with this; all equivalences made according to spirit of the invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (7)
1. the moulding process of a valve body, it is characterised in that: described moulding process step is as follows:
(1), blank is heated so that it is temperature is 1150 DEG C ± 30 DEG C;
(2), the blank after heating in step (1) is put into just mold chamber, then mould is carried out card pressure process so that form just base;
(3), by the first base in step (2) in putting into finish-forging die cavity, conducting forging processing is further carried out so that profile and size meet designing requirement;
(4), the blank of forging molding in step (3) is carried out trimming, cooling, complete the molding of valve body.
2. the moulding process of valve body according to claim 1, it is characterised in that: the material of described blank is structural alloy steel.
3. the moulding process of valve body according to claim 1, it is characterised in that: in step (1), the temperature after blank heating is 1150 DEG C.
4. the moulding process of valve body according to claim 1, it is characterised in that: after step (2), first first base is put in blocking die cavity, carry out blocking, the profile making blank is identical with the shape of designing requirement, then places in finish-forging die cavity, further carries out conducting forging processing.
5. the moulding process of valve body according to claim 1, it is characterised in that: in the trimming process of step (4), the temperature of its blank is≤850 DEG C ± 50 DEG C.
6. the moulding process of valve body according to claim 1, it is characterised in that: after step (1), first the oxide layer of blank periphery is removed, be then placed in just mold chamber.
7. the moulding process of valve body according to claim 6, it is characterised in that: by beaing blank surface so that the oxide layer sticking to blank surface comes off naturally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113866.2A CN105665609A (en) | 2016-03-01 | 2016-03-01 | Forming technology of valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610113866.2A CN105665609A (en) | 2016-03-01 | 2016-03-01 | Forming technology of valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105665609A true CN105665609A (en) | 2016-06-15 |
Family
ID=56306285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610113866.2A Pending CN105665609A (en) | 2016-03-01 | 2016-03-01 | Forming technology of valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105665609A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363205A (en) * | 2017-07-31 | 2017-11-21 | 四川凯茨实业集团有限公司 | Forging and molding module with handle flanged ball valve valve body forging |
| CN107671217A (en) * | 2017-11-21 | 2018-02-09 | 四川凯茨阀门制造有限公司 | A kind of flanged ball valve valve body forging forming method and its base mould of use |
| CN107876675A (en) * | 2017-11-21 | 2018-04-06 | 四川凯茨阀门制造有限公司 | A kind of flanged ball valve manufacture method |
| CN109518087A (en) * | 2018-12-17 | 2019-03-26 | 苏州孚杰机械有限公司 | For the corrosion resistant oil field valve body of low temperature low-alloy high-strength and its forging technology |
| CN110076272A (en) * | 2019-05-06 | 2019-08-02 | 昆山众诚精密锻造有限公司 | A kind of 1215 material forging technologies |
| CN115945621A (en) * | 2022-12-27 | 2023-04-11 | 无锡派鑫航空科技有限公司 | Die forging forming die for aluminum alloy petroleum pipeline valve body and forming method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343738A (en) * | 1986-08-08 | 1988-02-24 | Kobe Steel Ltd | Precision die forging method for annular part |
| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN104607881A (en) * | 2015-01-22 | 2015-05-13 | 江苏恒昊石油机械有限公司 | Forging technology for novel anti-cracking valve at low temperature |
| CN105081693A (en) * | 2015-08-03 | 2015-11-25 | 天长市众鑫精密锻造科技有限公司 | Integral hot punching technology for inner hole and peripheral small holes of forged component |
| CN105344900A (en) * | 2015-11-19 | 2016-02-24 | 江苏利普机械有限公司 | Forging process for lock case |
-
2016
- 2016-03-01 CN CN201610113866.2A patent/CN105665609A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343738A (en) * | 1986-08-08 | 1988-02-24 | Kobe Steel Ltd | Precision die forging method for annular part |
| CN102773387A (en) * | 2012-08-16 | 2012-11-14 | 大连大高阀门股份有限公司 | Forging method for flange type ball valve cover |
| CN104607881A (en) * | 2015-01-22 | 2015-05-13 | 江苏恒昊石油机械有限公司 | Forging technology for novel anti-cracking valve at low temperature |
| CN105081693A (en) * | 2015-08-03 | 2015-11-25 | 天长市众鑫精密锻造科技有限公司 | Integral hot punching technology for inner hole and peripheral small holes of forged component |
| CN105344900A (en) * | 2015-11-19 | 2016-02-24 | 江苏利普机械有限公司 | Forging process for lock case |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363205A (en) * | 2017-07-31 | 2017-11-21 | 四川凯茨实业集团有限公司 | Forging and molding module with handle flanged ball valve valve body forging |
| CN107363205B (en) * | 2017-07-31 | 2024-03-15 | 四川凯茨阀门制造有限公司 | Forging forming die set of valve body forging piece of flange ball valve with handle |
| CN107671217A (en) * | 2017-11-21 | 2018-02-09 | 四川凯茨阀门制造有限公司 | A kind of flanged ball valve valve body forging forming method and its base mould of use |
| CN107876675A (en) * | 2017-11-21 | 2018-04-06 | 四川凯茨阀门制造有限公司 | A kind of flanged ball valve manufacture method |
| CN109518087A (en) * | 2018-12-17 | 2019-03-26 | 苏州孚杰机械有限公司 | For the corrosion resistant oil field valve body of low temperature low-alloy high-strength and its forging technology |
| CN110076272A (en) * | 2019-05-06 | 2019-08-02 | 昆山众诚精密锻造有限公司 | A kind of 1215 material forging technologies |
| CN115945621A (en) * | 2022-12-27 | 2023-04-11 | 无锡派鑫航空科技有限公司 | Die forging forming die for aluminum alloy petroleum pipeline valve body and forming method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160615 |
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| RJ01 | Rejection of invention patent application after publication |