CN109128000A - Forging method with main flange valve body forging - Google Patents

Forging method with main flange valve body forging Download PDF

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Publication number
CN109128000A
CN109128000A CN201810922231.6A CN201810922231A CN109128000A CN 109128000 A CN109128000 A CN 109128000A CN 201810922231 A CN201810922231 A CN 201810922231A CN 109128000 A CN109128000 A CN 109128000A
Authority
CN
China
Prior art keywords
forging
blank
die
mold
finish
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
Application number
CN201810922231.6A
Other languages
Chinese (zh)
Inventor
赵文成
张家伟
王金业
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhongye Heavy Industry (tangshan) Co Ltd
Original Assignee
Zhongye Heavy Industry (tangshan) Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhongye Heavy Industry (tangshan) Co Ltd filed Critical Zhongye Heavy Industry (tangshan) Co Ltd
Priority to CN201810922231.6A priority Critical patent/CN109128000A/en
Publication of CN109128000A publication Critical patent/CN109128000A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/20Making machine elements valve parts
    • B21K1/24Making machine elements valve parts valve bodies; valve seats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/025Closed die forging

Abstract

The present invention relates to the forging of the valve body of valve, the forging method of specifically a kind of main flange valve body forging of band.Include the following steps: A, blank heating: blank heating is kept the temperature at such a temperature to 1200 DEG C ± 20 DEG C of initial forging temperature;B, mold preheats;C, blank preparation is come out of the stove;D blocking: after blank is come out of the stove, blank is placed into that Preform Die type is intracavitary, and Preform Die upper mold starts to mold, and blank fills full mold cavity and forms pre- forging stock;E finish-forging: pre- forging stock is put into finish-forging die type chamber, the molding of finish-forging die upper mold from the taking-up of pre- forge chamber, and formed punch squeezes, until pre- forging stock is fully filled with mold cavity, two sheet body ball valve body forging formings.Forging non-trimming of the present invention can forge the interstitial hole of valve body forging, reduce forge weight, save material, provide efficiency.

Description

Forging method with main flange valve body forging
Technical field
The present invention relates to the forging of the valve body of valve, the forging method of specifically a kind of main flange valve body forging of band.
Background technique
Valve is the element for controlling fluid, for controlling water, air, vapor, various corrosive medias, various oils Deng.The valve body material of valve must have and have enough heat resistances, elevated temperature corrosion resistant, anti-oxidant under maximum operating temperature Property, wearability and impact resistance, therefore valve is formed using forging technology.Currently, valve body forging mostly uses two kinds of forming modes, The multi-ram forging of i.e. common die forging and horizontal parting.When common die forging, there are overlaps on die joint, while can not forge lateral aperture And vertical hole, forge weight is big, and waste of material is more.Although the multi-ram forging of horizontal parting mode can forge lateral aperture and hang down Straight hole, but main flange can not be forged, pts wt is big after causing forging to machine, and installation is more difficult.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of forging method of the main flange valve body forging of band, can forging go out Main flange and vertical hole reduce forge weight.
The technical solution used to solve the technical problems of the present invention is that:
A kind of forging method of the main flange valve body forging of band, includes the following steps:
A, blank heating: blank heating is kept the temperature at such a temperature to 1200 DEG C ± 20 DEG C of initial forging temperature, and soaking time is 0.5 hour;
B, mold preheats: while blank heating, preheating to Preform Die and finish-forging die, preheating temperature is 200 DEG C -300 DEG C;
C, blank preparation is come out of the stove: after blank heat preservation and mold preheating, blank preparation is come out of the stove;
D, blocking
1) blank is come out of the stove, and it is intracavitary that blank is placed into Preform Die type;
2) Preform Die upper mold starts to mold, and blank fills full Preform Die type chamber and forms pre- forging stock;
E, finish-forging
1) pre- forging stock is put into finish-forging die type chamber from the taking-up of pre- forge chamber,
2) finish-forging die upper mold starts to mold, until contacting with finish-forging die lower die;
3) formed punch of finish-forging die squeezes, until pre- forging stock is fully filled with mold cavity, two sheet body ball valve body forging formings.
By adopting the above technical scheme compared with prior art, the present invention beneficial effect is:
Forging goes out main flange and vertical hole, reduces forge weight and production cost.
Further, prioritization scheme of the invention is:
The clamping pressure of the Preform Die of step D is 13.2MN.
The finish-forging die punch pressure of step E is 15.3MN.
Detailed description of the invention
Fig. 1 is the forging main view of the embodiment of the present invention;
Fig. 2 is the pre- forging stock main view of the embodiment of the present invention;
Fig. 3 is the Preform Die main view of the embodiment of the present invention;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the A-A view of Fig. 4;
Fig. 6 is the finish-forging die main view of the embodiment of the present invention;
Fig. 7 is the B-B view of Fig. 6;
Fig. 8 is the left view of Fig. 7;
Fig. 9 is blank structure schematic diagram;
In figure: the first lower die of Preform Die 1;The second lower die of Preform Die 2;Preform Die upper mold 3;Pre- forging stock 4;Under finish-forging die Mould 5;Finish-forging die upper mold 6;Finish-forging die formed punch 7;Blank 8;With main flange valve body forging 9.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
The present embodiment is 4 inch valve body forging, and material is A105, is included the following steps:
A, blank heating: shown in blank 8(Fig. 9) 1200 DEG C ± 20 DEG C of initial forging temperature are heated to, and keep the temperature at such a temperature, it protects The warm time is 0.5 hour, and total heating time is no more than 2 hours, it is ensured that the internal and external temperature of blank 8 is consistent;
B, mold preheats: while blank 8 heats, to Preform Die (shown in Fig. 3, Fig. 4) and finish-forging die (shown in Fig. 6, Fig. 8) Preheating, preheating temperature are 200 DEG C -300 DEG C;
C, blank preparation is come out of the stove: after the heat preservation of blank 8 and Preform Die preheating, the preparation of blank 8 is come out of the stove;
D, blocking
1) blank 8 is come out of the stove, and blank 8 is placed into Preform Die type chamber;
2) Preform Die upper mold 3 starts to mold, and Preform Die upper mold 3 squeezes, and Preform Die upper mold 3 is controlled using pressure, pressure It is 13.2MN, blank 8 fills full mold cavity and forms pre- forging stock 4;
E, finish-forging
1) pre- forging stock 4 is put into finish-forging die type chamber from the taking-up of pre- forge chamber;
2) finish-forging die upper mold 6 starts to mold, until contacting with finish-forging die lower die 5;
3) finish-forging die formed punch 7 squeezes, and finish-forging die formed punch is controlled using pressure, and 7 pressure of finish-forging die formed punch reaches setting value, Pressure is 15.3MN, until pre- forging stock 4 is fully filled with mold cavity, the forming of two sheet body ball valve body forging 9.
The foregoing is merely preferably feasible embodiment of the invention, not thereby limiting the scope of the invention, It is all to change with equivalent structure made by description of the invention and accompanying drawing content, it is intended to be included within the scope of the present invention.

Claims (3)

1. a kind of forging method of the main flange valve body forging of band, characterized by the following steps:
A, blank heating: blank heating is kept the temperature at such a temperature to 1200 DEG C ± 20 DEG C of initial forging temperature, and soaking time is 0.5 hour;
B, mold preheats: while blank heating, preheating to Preform Die and finish-forging die, preheating temperature is 200 DEG C -300 DEG C;
C, blank preparation is come out of the stove: after blank heat preservation and Preform Die preheating, blank preparation is come out of the stove;
D, blocking
1) blank is come out of the stove, and it is intracavitary that blank is placed into Preform Die type;
2) Preform Die upper mold starts to mold, and blank fills full Preform Die type chamber and forms pre- forging stock;
E, finish-forging
1) it is intracavitary from the taking-up of Preform Die type chamber to be put into finish-forging die type for pre- forging stock,
2) finish-forging die upper mold starts to mold, until contacting with finish-forging die lower die;
3) formed punch of finish-forging die squeezes, until pre- forging stock is fully filled with mold cavity, two sheet body ball valve body forging formings.
2. the forging method of the main flange valve body forging of band according to claim 1, it is characterised in that: the molding pressure of step D Power is 13.2MN.
3. the forging method of the main flange valve body forging of band according to claim 1, it is characterised in that: the finisher of step E Tool punch pressure is 15.3MN.
CN201810922231.6A 2018-09-13 2018-09-13 Forging method with main flange valve body forging Pending CN109128000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810922231.6A CN109128000A (en) 2018-09-13 2018-09-13 Forging method with main flange valve body forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810922231.6A CN109128000A (en) 2018-09-13 2018-09-13 Forging method with main flange valve body forging

Publications (1)

Publication Number Publication Date
CN109128000A true CN109128000A (en) 2019-01-04

Family

ID=64793349

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810922231.6A Pending CN109128000A (en) 2018-09-13 2018-09-13 Forging method with main flange valve body forging

Country Status (1)

Country Link
CN (1) CN109128000A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479938A (en) * 2019-08-01 2019-11-22 中冶重工(唐山)有限公司 The forging and molding mold and manufacturing process of flanged ball valve forging

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103264137A (en) * 2012-08-17 2013-08-28 大连大高阀门股份有限公司 Flange ball valve body forging technology
CN203265502U (en) * 2013-03-07 2013-11-06 上海交通大学 Hot forging device for transmission shaft joint fork with horizontal fork part
CN104972045A (en) * 2015-07-09 2015-10-14 天津天海精密锻造有限公司 Dual gear forging die and dual gear forging method using same
CN105382168A (en) * 2015-12-01 2016-03-09 二十二冶集团精密锻造有限公司 Multidirectional die-forging forming die and forming method of valve forge part with main flange
CN105397416A (en) * 2015-12-01 2016-03-16 温州市研制阀门厂 Forging method of valve
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
CN207154643U (en) * 2017-07-31 2018-03-30 四川凯茨实业集团有限公司 A kind of forging and molding module with handle flanged ball valve valve body forging
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN103264137A (en) * 2012-08-17 2013-08-28 大连大高阀门股份有限公司 Flange ball valve body forging technology
CN203265502U (en) * 2013-03-07 2013-11-06 上海交通大学 Hot forging device for transmission shaft joint fork with horizontal fork part
CN104972045A (en) * 2015-07-09 2015-10-14 天津天海精密锻造有限公司 Dual gear forging die and dual gear forging method using same
CN105382168A (en) * 2015-12-01 2016-03-09 二十二冶集团精密锻造有限公司 Multidirectional die-forging forming die and forming method of valve forge part with main flange
CN105397416A (en) * 2015-12-01 2016-03-16 温州市研制阀门厂 Forging method of valve
CN207154643U (en) * 2017-07-31 2018-03-30 四川凯茨实业集团有限公司 A kind of 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
中国锻压协会: "《特种合金及其锻造》", 31 October 2009, 国防工业出版社 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479938A (en) * 2019-08-01 2019-11-22 中冶重工(唐山)有限公司 The forging and molding mold and manufacturing process of flanged ball valve forging

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Application publication date: 20190104

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