CN101596559A - The forging backward extrusion technology of three-way pipe - Google Patents
The forging backward extrusion technology of three-way pipe Download PDFInfo
- Publication number
- CN101596559A CN101596559A CNA2009100544141A CN200910054414A CN101596559A CN 101596559 A CN101596559 A CN 101596559A CN A2009100544141 A CNA2009100544141 A CN A2009100544141A CN 200910054414 A CN200910054414 A CN 200910054414A CN 101596559 A CN101596559 A CN 101596559A
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- CN
- China
- Prior art keywords
- forging
- way pipe
- backward extrusion
- responsible
- perforation
- 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.)
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Classifications
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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
- 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
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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
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
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- 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
- B21K1/14—Making machine elements fittings
- B21K1/16—Making machine elements fittings parts of pipe or hose couplings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The present invention relates to the three-way pipe preparing technical field, relate in particular to a kind of forging backward extrusion technology of three-way pipe, it is characterized in that: (1) forges the rod extruding: be heated to forging temperature by forging bar matter, to forge rod again and lie in a horizontal plane in the corresponding position of being responsible in the three-way pipe die forging mould, adopt the Double Tops cylinder to push perforation synchronously at the two ends of forging rod, form when being responsible for, in forging die, be responsible for backward extrusion and form projection; (2) backward extrusion of taking blame for others on perforation: take blame for others in the employing from the perforation of backward extrusion downwards of projection top, form three-way pipe.The present invention has compared with prior art adopted solid forging die, guarantees a pyrogene type, has reduced process energy consumption, has greatly improved production efficiency, also can remove surface scale, guarantees that surface quality is level and smooth, the product shape moulding puts in place, size is good; The original technology of the aspect ratio of the arm of preparation increases by 30%～60%, makes welding, film making all convenient, and is not easy to cause expand tube, booster, has strengthened the security performance of equipment operation.
Description
[technical field]
The present invention relates to the three-way pipe preparing technical field, relate in particular to a kind of forging backward extrusion technology of three-way pipe.
[background technology]
The production method of the present large-scale threeway that relatively takes the lead in the world, be to be responsible at forging pipe two ends progressively to dwindle with particular manufacturing craft is unidirectional, general seven to eight fire that need heat the moulding of forging and pressing ability, its major defect: owing to add showing tremendous enthusiasm inferior many, inefficiency, required energy consumption is very high, and product surface quality is poor, because can produce oxide skin at product surface after each heating, and heating for the first time, promptly behind first fire, can also be than the oxide skin that is easier to remove the surface, but from the second fire beginning, owing to limited by mould, the oxide skin on surface just can't be removed, and causes oxide skin to pile up defective; The arm height that this technology of while is prepared is low, causes the difficulty of follow-up welding, film making; And two stress area distances of a weld seam and a tube neck are too short, cause expand tube, booster in this zone easily.
[summary of the invention]
The present invention cooperates special-purpose forging die to adopt and forges the backward extrusion technology for overcoming the deficiencies in the prior art, will forge rod one fiery extrusion molding.
For achieving the above object, the forging backward extrusion technology of a kind of three-way pipe of the present invention's design, it is characterized in that: (1) forges the rod extruding: be heated to forging temperature by forging bar matter, to forge rod again and lie in a horizontal plane in the corresponding position of being responsible in the three-way pipe die forging mould, adopt the Double Tops cylinder to push perforation synchronously at the two ends of forging rod, form when being responsible for, in forging die, be responsible for backward extrusion and form projection; (2) backward extrusion of taking blame for others on perforation: take blame for others in the employing from the perforation of backward extrusion downwards of projection top, form three-way pipe.
Described Double Tops cylinder and on take blame for others all and to adopt the forging and pressing oil cylinder.
The top of the threeway direction of described forging die correspondence is respectively equipped with regulates the adjusting briquetting of being responsible for length and arm height.
The present invention compared with prior art, adopted solid forging die, guarantee a pyrogene type, not only can remove surface scale, the assurance surface quality is level and smooth, more because the unitary mould size guarantees that the product shape moulding puts in place, size is good, a pyrogene type also greatly reduces process energy consumption, has greatly improved production efficiency; Use the outstanding feature of this technology to be simultaneously, the arm height that the comparable original technology of the height of arm is prepared increases by 30%～60%, owing to increased the height of arm, make welding, film making all convenient, and increase along with a length of tube, two stress area distances of a weld seam and a tube neck widen, and just are not easy to cause expand tube, booster, have strengthened the security performance of equipment operation.
[description of drawings]
Fig. 1 is the schematic flow sheet of preparation three-way pipe in the prior art.
Fig. 2 is the cut-away view of three-way pipe die forging mould in the embodiment of the invention.
Fig. 3 is preparation technology's schematic flow sheet of three-way pipe in the embodiment of the invention.
Referring to Fig. 1,1 for being responsible for; 2 is arm.
[specific embodiment]
The present invention will be further described below in conjunction with accompanying drawing.
Referring to Fig. 2 and Fig. 3, by the material of forging rod will forge rod routinely technology be heated to malleable temperature, be generally 1050 ℃～1200 ℃;
Forge the rod extruding: will forge rod and lie in a horizontal plane in the corresponding position of being responsible in the three-way pipe die forging mould, adopt the Double Tops cylinder to push perforation synchronously at the two ends of forging rod, form when being responsible for, under the effect of forging die, extruding forms projection on being responsible for, forging excellent two ends employing Double Tops cylinder extruding frock, guarantee that all titles of metal material flow like this by the synchronous extrusion modling of direction in opposite directions; Consider dimensional stability to heating in house simultaneously, the forging die inner chamber is bigger by 1.015% than product shape, three tops of three-way pipe die forging mould are respectively equipped with the adjusting briquetting, regulate the length of three-way pipe master, arm, highly by the position of adjusting briquetting, when needs control arm height, then establish the adjusting briquetting, forge excellent two ends then and exert pressure in the forging die direction of corresponding arm direction; In the time will controlling the length of being responsible for an end, then establish the adjusting briquetting in the arm direction of forging die and the person in charge's one end of required control length, exerting pressure at person in charge's other end of forging die correspondence then gets final product;
On the perforation of taking blame for others: take blame for others in the employing from the extruding downwards of projection top, under the constraint of mould, carry out the backward extrusion perforation, form three-way pipe.
The three-way pipe that forms can carry out fine finishining as required again, as groove, chamfering, edging etc.
Claims (3)
1, a kind of forging backward extrusion technology of three-way pipe, it is characterized in that: (1) forges the rod extruding: be heated to forging temperature by forging bar matter, to forge rod again and lie in a horizontal plane in the corresponding position of being responsible in the three-way pipe die forging mould, adopt the Double Tops cylinder to push perforation synchronously at the two ends of forging rod, form when being responsible for, in forging die, be responsible for backward extrusion and form projection; (2) backward extrusion of taking blame for others on perforation: take blame for others in the employing from the perforation of backward extrusion downwards of projection top, form three-way pipe.
2, the forging backward extrusion technology of a kind of three-way pipe as claimed in claim 1 is characterized in that: described Double Tops cylinder and on take blame for others all and to adopt the forging and pressing oil cylinder.
3, the forging backward extrusion technology of a kind of three-way pipe as claimed in claim 1 is characterized in that: the top of the threeway direction of described forging die correspondence is respectively equipped with regulates the adjusting briquetting of being responsible for length and arm height.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100544141A CN101596559A (en) | 2009-07-06 | 2009-07-06 | The forging backward extrusion technology of three-way pipe |
| PCT/CN2010/001025 WO2011003282A1 (en) | 2009-07-06 | 2010-07-09 | Forging backward-extrusion process for making tee-pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100544141A CN101596559A (en) | 2009-07-06 | 2009-07-06 | The forging backward extrusion technology of three-way pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101596559A true CN101596559A (en) | 2009-12-09 |
Family
ID=41418252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100544141A Pending CN101596559A (en) | 2009-07-06 | 2009-07-06 | The forging backward extrusion technology of three-way pipe |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101596559A (en) |
| WO (1) | WO2011003282A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101862949A (en) * | 2010-06-29 | 2010-10-20 | 赵伟星 | Backward extrusion forging method |
| WO2011003282A1 (en) * | 2009-07-06 | 2011-01-13 | 上海昌强电站配件有限公司 | Forging backward-extrusion process for making tee-pipe |
| CN108838229A (en) * | 2018-07-11 | 2018-11-20 | 上海核工程研究设计院有限公司 | A kind of main pipe hot leg integrated extrusion molding device |
| CN111054868A (en) * | 2019-12-27 | 2020-04-24 | 北京国电富通科技发展有限责任公司 | Device for manufacturing three-way pipe fitting and application thereof |
| CN111570696A (en) * | 2020-05-25 | 2020-08-25 | 上海电机学院 | A large-scale three-way die forging device with adjustable angle and its die forging method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107262650A (en) * | 2017-06-14 | 2017-10-20 | 江苏森威精锻有限公司 | A kind of mold design of suitable special-shaped shell body end face level compensating |
| CN108758142B (en) * | 2018-06-28 | 2024-03-19 | 江阴市天柠管道有限公司 | Main pipe reducing tee joint and production process thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB197119A (en) * | 1922-03-09 | 1923-05-10 | Joseph Howard Junior | Improvements in the manufacture of pipe fittings and the like |
| US2170853A (en) * | 1937-10-09 | 1939-08-29 | American Radiator & Standard | Method of making pipe fittings |
| GB1113048A (en) * | 1965-10-08 | 1968-05-08 | Alfred Clay Arbogast | Method and apparatus for making pipe fittings |
| GB2132125A (en) * | 1982-12-14 | 1984-07-04 | Vitkovice Zdarske Strojirny A | Tool for fluid-forming of workpieces |
| JPS62292223A (en) * | 1986-06-13 | 1987-12-18 | Nippon Baruji Kogyo Kk | Forming method for headed tee |
| CN2126120U (en) * | 1992-05-09 | 1992-12-30 | 山东工业大学 | Three-way pipe coupling axial extruding shaping device |
| US6029487A (en) * | 1998-08-24 | 2000-02-29 | Avmat Kydroforming Ltd. | System and method for manufacturing tubular products from tubular workpieces |
| CN2611065Y (en) * | 2003-03-28 | 2004-04-14 | 竭国忠 | Cold extrusion metal three-way die |
| CN101596559A (en) * | 2009-07-06 | 2009-12-09 | 上海昌强电站配件有限公司 | The forging backward extrusion technology of three-way pipe |
-
2009
- 2009-07-06 CN CNA2009100544141A patent/CN101596559A/en active Pending
-
2010
- 2010-07-09 WO PCT/CN2010/001025 patent/WO2011003282A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011003282A1 (en) * | 2009-07-06 | 2011-01-13 | 上海昌强电站配件有限公司 | Forging backward-extrusion process for making tee-pipe |
| CN101862949A (en) * | 2010-06-29 | 2010-10-20 | 赵伟星 | Backward extrusion forging method |
| CN108838229A (en) * | 2018-07-11 | 2018-11-20 | 上海核工程研究设计院有限公司 | A kind of main pipe hot leg integrated extrusion molding device |
| CN111054868A (en) * | 2019-12-27 | 2020-04-24 | 北京国电富通科技发展有限责任公司 | Device for manufacturing three-way pipe fitting and application thereof |
| CN111570696A (en) * | 2020-05-25 | 2020-08-25 | 上海电机学院 | A large-scale three-way die forging device with adjustable angle and its die forging method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011003282A1 (en) | 2011-01-13 |
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Open date: 20091209 |