CN201511050U - Distribution extrusion die - Google Patents
Distribution extrusion die Download PDFInfo
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- CN201511050U CN201511050U CN2009200466010U CN200920046601U CN201511050U CN 201511050 U CN201511050 U CN 201511050U CN 2009200466010 U CN2009200466010 U CN 2009200466010U CN 200920046601 U CN200920046601 U CN 200920046601U CN 201511050 U CN201511050 U CN 201511050U
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- extrusion
- extruding head
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Abstract
The utility model discloses a distribution extrusion die, which comprises an extrusion shaft, an impact extrusion head and a prestressing extrusion chamber. With the operating direction as a reference, the upper end of the impact extrusion head is fixedly arranged at the lower end of the extrusion shaft, the cross-sectional area of the impact extrusion head is smaller than the cross-sectional area of the extrusion shaft, the centers of the prestressing extrusion chamber, the extrusion shaft and the impact extrusion head are collinear, and the prestressing extrusion chamber is a barrel-shaped cylinder with the inner diameter of the upper end opening thereof larger than the outer diameters of the extrusion shaft and the impact extrusion head. The casing fabricated using the distribution extrusion die provided by the utility mode has uniform wall thickness, no crack or other defect, and high reliability and strength.
Description
Technical field
The utility model relates to a kind of metal processing mold, particularly a kind of distributed extrusion die.
Background technology
The development of nuclear power has been brought up to first of national strategic aim and the national development ten big support tasks, the autonomy-oriented of the pressure vessel of reactor (production domesticization) has been mentioned unprecedented height in the nuclear power nuclear island, China's Qinshan and Daya Bay nuclear power plant are logical and Nippon Steel import from French avens, cost an arm and a leg.Be the development clean energy resource, reduce the CO2 discharging, China's planning increases by the nuclear power installed capacity of 8,000 ten thousand KW again at the year two thousand twenty, needs 80 of the pressure vessels of 1,000,000 KW levels approximately, and just by 400,000 KW housing calculation of price, its total price is at 400～48,000,000,000 yuan.This complex engineering of autonomous manufacturing and the technical problem of nuclear pressure housing is badly in need of solving rapidly in China.
The nuclear-power reactor pressure vessel adopts saddle ring expansion, the reaming of hollow steel ingot mandrel and the compacting of slab end socket to form through the manufacturing of girth welding technology more at present, and after Soviet Union's Chernobyl nuclear power accident, longitudinal seam welding is unallowed on the nuclear pressure shell.Present nuclear pressure housing has adopted saddle ring expansion technology, makes earlier five rings, and the circumferential weld that these rings the are become straight drum part of welding the formation housing is made end socket by thick plate stretching or compacting more then, then straight drum part and end socket is welded.The best technology yet this technology still can not be said so, clearly, no matter be that saddle forging or end socket slab are suppressed or drawn, not the shaping under the three-dimensional compressive stress state, forming process is accompanied by local tension, thereby there is hidden danger in the closed and reparation of crackle and defective.
Present this processing technology is the forming manufacturing technology of the long flow process that is formed separately of a kind of thimble body and end socket, steel ingot is made the annular element of band circular hole through special open die forging blank-making technology, could use above-mentioned saddle forging then, a plurality of heavy annulus that are shaped, to after its processing, the heat treatment more one by one weldering get up to form straight barrier part; Suppress or draw the heavy end socket of manufacturing with thick metal plate, again with low head and straight barrel welding, and carry out corresponding heat treatment and processing, make the pressure vessel body, cover again upper cover a complete reactor nuclear pressure housing, this manufacturing process is long, link is many, cycle is long, and efficient is low, and reliability is low.
The utility model content
In order to remedy above deficiency, the utility model provides a kind of distributed extrusion die, the housing wall thickness that this distributed extrusion die is produced evenly, flawless etc., the reliability of housing and intensity height.
The utility model for the technical scheme that solves its technical problem and adopt is: a kind of distributed extrusion die, comprise extrusion axis, extruding head and prestressing force recipient, to use direction to be benchmark, the extruding head upper end is fixedly arranged on the extrusion axis lower end, the cross-sectional area of extruding head is less than the cross-sectional area of extrusion axis, can effectively reduce extruding force like this and improve forming efficiency, the ratio of the cross-sectional area of extruding head and the cross-sectional area of extrusion axis promptly concerns with the extruding force formation function, extruding head cross section commonly used is a rectangular surfaces, make its long limit equal the diameter of extrusion axis, minor face is the ratio and the extruding force formation function relation of the width and the extrusion axis diameter of extruding head, the prestressing force recipient, extrusion axis and extruding head center conllinear, the prestressing force recipient is the tubbiness cylinder of upper end open inside diameter greater than extrusion axis and extruding head outside diameter, during use, the extrusion axis upper end detachably is fixedly arranged on the hold-down devices, prestressing force recipient lower end detachably is fixedly arranged on the forging press workbench, because extruding head, the extrusion axis band in the enclosed die cavity of prestressing force recipient, passes through huge three-dimensional compressive stress subregion, extrusion metal in batches, its formation housing bottom hemispherical portion and metal are risen along bus simultaneously form the straight drum part of housing, the housing of this extrusion modling is end socket and the cylindrical shell structure that is formed in one like this, again because its extrusion modling under the three-dimensional compressive stress effect is guaranteed the intensity of this housing.
As the further improvement of distributed extrusion die of the present utility model, extrusion axis and extruding head are overall structure.
As the further improvement of distributed extrusion die of the present utility model, the ratio of the cross-sectional area of extruding head and the cross-sectional area of extrusion axis is between 0.1～0.9.
As the further improvement of distributed extrusion die of the present utility model, the inboard die cavity of prestressing force recipient is a kind of of circular cavity, rectangular cavity and oval chamber, and the extrusion axis cross section is rectangle, polygon and oval-shaped a kind of.
As the further improvement of distributed extrusion die of the present utility model, the extruding head cross section is a rectangular configuration, and its long limit equals the diameter of extrusion axis, and minor face is the width of extruding head, and the extruding head width is 0.05 to 0.95 with the ratio on long limit.
Useful technique effect of the present utility model is: the steel ingot fixed placement that when the utility model uses high temperature is heated is in the prestressing force recipient of sealing, the extrusion axis band extruding head carries out subregion, branch time domain to steel ingot distribution extruding, make the radially mobile straight drum part that forms the bottom of housing and form housing along the rising of housing bus of metal, need not girth welding like this and just finish the one-shot forming of cylindrical shell and end socket, thereby technological process is short, link is few, and the cycle is short, the efficient height; Because extruding head is to carry out in the prestressing force recipient of sealing to the extruding of metal, thereby be basically at three-dimensional compressive stress state compacted under, tension in the forming process is dropped to minimum level, even there is not tension fully, thereby the wall thickness of housing is even, it is thorough that the closure of crackle and defective is repaired, the reliability of housing and intensity height;
The utility model can also be used for high pressure and super-pressure, high-reliabilities such as nuclear power evaporator, hydrogenation reactor, big volume natural gas high-pressure bottle, the shaping of the container of volume is made greatly.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model extrusion axis front view;
Fig. 3 is the utility model extrusion axis left view;
Fig. 4 is the utility model user mode schematic diagram.
The specific embodiment
Embodiment: a kind of distributed extrusion die, comprise extrusion axis 92, extruding head 93 and prestressing force recipient 6, to use direction to be benchmark, extruding head 93 upper ends are fixedly arranged on extrusion axis 92 lower ends, the cross-sectional area A 1 of extruding head is less than the cross-sectional area A 2 of extrusion axis, can effectively reduce extruding force P like this and improve forming efficiency, the cross-sectional area A 1 of extruding head and the ratio A1/A2 of the cross-sectional area A 2 of extrusion axis and extruding force P formation function relation, extruding head 93 cross sections commonly used are a rectangular surfaces, make its long limit equal the diameter D1 of extrusion axis, minor face is the width B of extruding head and ratio B/D1 and the extruding force P formation function relation of extrusion axis diameter D1, prestressing force recipient 6, extrusion axis 92 and extruding head 93 center conllinear, prestressing force recipient 6 is the tubbiness cylinder of upper end open inside diameter greater than extrusion axis 92 and extruding head 93 outside diameter, extrusion axis 92 upper ends detachably are fixedly arranged on the hold-down devices of forging press during use, prestressing force recipient 6 lower ends detachably are fixedly arranged on the forging press workbench, because extrusion axis 92 passes through huge three-dimensional compressive stress with extruding head 93 in the enclosed die cavity of prestressing force recipient 6, the subregion, extrusion metal in batches, its formation housing bottom hemispherical portion and metal are risen along bus simultaneously form the straight drum part of housing, the housing of this extrusion modling is end socket and the cylindrical shell structure that is formed in one like this, again because its extrusion modling under the three-dimensional compressive stress effect is guaranteed the intensity of this housing.
The extrusion axis 92 and the extruding head 93 of described distributed extrusion die are overall structure.
The ratio A1/A2 of the cross-sectional area A 1 of the extruding head of described distributed extrusion die and the cross-sectional area A 2 of extrusion axis is between 0.1～0.9.
The prestressing force recipient 6 inboard die cavities of described distributed extrusion die are a kind of of circular cavity, rectangular cavity and oval chamber, and extrusion axis 92 cross sections are rectangle, polygon and oval-shaped a kind of.
Extruding head 93 cross sections of described distributed extrusion die are rectangular configuration, and its long limit equals the diameter D1 of extrusion axis, and minor face is the width B of extruding head, and the extruding head width is 0.05-0.95 with long limit ratio B/D1.
Claims (5)
1. distributed extrusion die, it is characterized in that: comprise extrusion axis (92), extruding head (93) and prestressing force recipient (6), to use direction to be benchmark, extruding head (93) upper end is fixedly arranged on extrusion axis (92) lower end, the cross-sectional area of extruding head (A1) is less than the cross-sectional area (A2) of extrusion axis, prestressing force recipient (6), extrusion axis (92) and extruding head (93) center conllinear, prestressing force recipient (6) are the tubbiness cylinder of upper end open inside diameter greater than extrusion axis (92) and extruding head (93) outside diameter.
2. distributed extrusion die according to claim 1 is characterized in that: extrusion axis and extruding head are overall structure.
3. distributed extrusion die according to claim 1 is characterized in that: the ratio of the cross-sectional area of extruding head and the cross-sectional area of extrusion axis is between 0.1～0.9.
4. distributed extrusion die according to claim 1 is characterized in that: the inboard die cavity of prestressing force recipient is a kind of in circular cavity, rectangular cavity and the oval chamber, and the extrusion axis cross section is a kind of in rectangle, polygon and the ellipse.
5. distributed extrusion die according to claim 1 is characterized in that: the extruding head cross section is a rectangular configuration, and its long limit equals the diameter (D1) of extrusion axis, and minor face is the width (B) of extruding head, and the extruding head width is 0.05 to 0.95 with the ratio on long limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200466010U CN201511050U (en) | 2009-06-17 | 2009-06-17 | Distribution extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200466010U CN201511050U (en) | 2009-06-17 | 2009-06-17 | Distribution extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201511050U true CN201511050U (en) | 2010-06-23 |
Family
ID=42482447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200466010U Expired - Lifetime CN201511050U (en) | 2009-06-17 | 2009-06-17 | Distribution extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201511050U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145551A1 (en) * | 2009-06-17 | 2010-12-23 | 苏州昆仑先进制造技术装备有限公司 | Distribution extruding forming device and distribution extruding forming method |
| CN101912889B (en) * | 2009-06-17 | 2013-07-31 | 苏州昆仑先进制造技术装备有限公司 | Distributive extrusion process method and distributive extrusion mold thereof |
-
2009
- 2009-06-17 CN CN2009200466010U patent/CN201511050U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010145551A1 (en) * | 2009-06-17 | 2010-12-23 | 苏州昆仑先进制造技术装备有限公司 | Distribution extruding forming device and distribution extruding forming method |
| CN101912889B (en) * | 2009-06-17 | 2013-07-31 | 苏州昆仑先进制造技术装备有限公司 | Distributive extrusion process method and distributive extrusion mold thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100623 Effective date of abandoning: 20090617 |
|
| RGAV | Abandon patent right to avoid regrant |