CN202045184U - Die for extruding tube with large outer diameter and thin wall - Google Patents
Die for extruding tube with large outer diameter and thin wall Download PDFInfo
- Publication number
- CN202045184U CN202045184U CN2011201199090U CN201120119909U CN202045184U CN 202045184 U CN202045184 U CN 202045184U CN 2011201199090 U CN2011201199090 U CN 2011201199090U CN 201120119909 U CN201120119909 U CN 201120119909U CN 202045184 U CN202045184 U CN 202045184U
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- die
- upper die
- counterdie
- patrix
- lower die
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Abstract
The utility model discloses a die for extruding a tube with a large outer diameter and a thin wall. The die comprises an upper die and a lower die; the upper die and the lower die are in butt joint; a cavity is arranged on the upper die; a fusion chamber is arranged on the lower die; the fusion chamber and the cavity are in butt joint; an upper die core is arranged in the middle of the upper die; a radial expansion cavity is arranged between an inlet position of the upper die and the cavity; one end of the upper die core extends into the lower die; an upper die step is arranged on the outer circumferential surface of one side of the upper die core close to the lower die; a lower die step is arranged on the inner circumferential surface of one side of the lower die close to the upper die core; a pre-deformation area and a forming area are formed between the upper die step and the lower die step; and the thickness of the pre-deformation area is larger than that of the forming area. The expansion cavity is arranged at a feed inlet of the upper die so that the overall dimension of an extruded product can be increased, the steps and the pre-deformation area are arranged on the surfaces of working tapes of the upper die and the lower die to realize buffer of the flowing product in extrusion, the ellipticity of the product is decreased, dimensional stability is improved so that the tube can be gradually thinned, and the large outer diameter, the thin wall and the small ellipticity of the extruded product are ensured by the forming area.
Description
Technical field
The utility model relates to the hot-extrusion mold of a kind of aluminium and aluminium alloy.
Background technology
The aluminium alloy compound pipe-in-pipe has that external diameter is big, the characteristics of wall thickness, and by the hot-extrusion mold extrusion molding, the structure of mould directly has influence on Key Performance Indicators such as product external diameter, wall thickness, ovality and surface quality.The product external diameter that common hot extruding die is extruded under equal mould cylinder size is little, wall thickness is thick, ovality is big, subsequent treatment such as also need to machine, just can meet the demands, but smooth through the product surface of Vehicle Processing not as compressive surface, be difficult to satisfy user demand.
Summary of the invention
The technical problem that the utility model solved provide a kind of can be under the condition that does not increase mould tube internal diameter, produce that big external diameter, thin-walled are thick, the extrusion die of the tubing of little ovality.
The technical solution of the utility model is:
A kind of mould that is used to push the thick tubing of big external diameter thin-walled, comprise patrix, counterdie, the upper die and lower die butt joint, patrix is provided with die cavity, counterdie is provided with and merges the chamber, merging the chamber docks with die cavity, the centre of patrix is a upper mold core, be provided with the expansion die cavity that is radial arrangement between the import department of patrix and the die cavity, one end of upper mold core stretches into counterdie, and the side outer circumference surface near counterdie on the upper mold core is provided with the patrix step, and counterdie is provided with the counterdie step near a side inner peripheral surface of upper mold core, form the predeformation district and the district that is shaped between patrix step and the counterdie step, the thickness in predeformation district is greater than the thickness in the district that is shaped.
Beneficial effect: the utility model patrix charging aperture is provided with the expansion die cavity, can increase the appearance and size of extruded product, the buffering that surface, upper die and lower die work zone is provided with step and predeformation district when product flows when realizing pushing, reduce the ovality of product, improve size stability, make and be shaped tubing attenuation gradually and distinguish thick, the little ovality size of big external diameter, thin-walled that guarantees extruding back product.
Description of drawings
Fig. 1 is an extrusion die front view of the prior art;
Fig. 2 is that the B-B of Fig. 1 is to cutaway view;
Fig. 3 is an extrusion die front view of the present utility model;
Fig. 4 is that the A-A of Fig. 3 is to cutaway view.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of mould that is used to push the thick tubing of big external diameter thin-walled, comprise patrix 1, counterdie 2, patrix 1 and counterdie 2 butt joints, patrix 1 is provided with die cavity 10, counterdie 2 is provided with and merges chamber 4, merging chamber 4 docks with die cavity 10, the centre of patrix 1 is a upper mold core 9, be provided with the expansion die cavity 3 that is radial arrangement between the import department of patrix 1 and the die cavity 10, one end of upper mold core 9 stretches into counterdie 2, side outer circumference surface near counterdie 2 on the upper mold core 9 is provided with patrix step 7, counterdie 2 is provided with counterdie step 8 near a side inner peripheral surface of upper mold core 9, form the predeformation district 5 and the district 6 that is shaped between patrix step 7 and the counterdie step 8, the thickness in predeformation district 5 is greater than the thickness in the district 6 that is shaped.
The charging hole of patrix 1 is provided with expansion die cavity 3, the two wall buses and the axial line angle that spread die cavity are respectively the 5-40 degree, counterdie 2 is provided with and merges chamber 4, surface, counterdie 2 work zone has step 8, surface, patrix work zone has step 7, and patrix 1 is combined into predeformation district 5 and the district 6 that is shaped with counterdie 2 working face steps.
The course of work of the present utility model is: when extruder applies certain extruding force to extrusion axis, extrusion axis advances aluminium casting rod to advance and enters extrusion die expansion die cavity 3, realize the expansion of product external diameter, material is along with the propelling of extrusion axis enters fusion chamber 4 seam, buffering when product flows when being provided with predeformation district 5 that patrix step 7 is combined to form and realizing pushing because counterdie 2 work zones are provided with counterdie step 8 and patrix 1 work zone, reduce the ovality of product, improve size stability, guaranteed the multiple tube external diameter by the district 6 that is shaped at last, wall thickness, ovality and surface quality requirement.
When the mould cylinder size is 208mm, if employing common die, maximum outside diameter generally can only reach 180mm, the thick 5mm that generally can only arrive of thin-walled, ovality can only reach about 3mm, and adopts the mould of new construction, and maximum outside diameter then can reach 210mm, the thick 2.5mm that can reach of thin-walled, ovality can be controlled at below the 2mm.
Claims (1)
1. mould extrusion die that is used to push the thick tubing of big external diameter thin-walled, comprise patrix (1), counterdie (2), patrix (1) and counterdie (2) butt joint, described patrix (1) is provided with die cavity (10), counterdie (2) is provided with and merges chamber (4), dock with die cavity (10) described fusion chamber (4), the centre of patrix (1) is upper mold core (9), it is characterized in that: be provided with the expansion die cavity (3) that is radial arrangement between the import department of described patrix (1) and the die cavity (10), one end of upper mold core (9) stretches into counterdie (2), the side outer circumference surface that upper mold core (9) goes up near counterdie (2) is provided with patrix step (7), counterdie (2) is provided with counterdie step (8) near a side inner peripheral surface of upper mold core (9), form the predeformation district (5) and the district (6) that is shaped between patrix step (7) and the counterdie step (8), the thickness in described predeformation district (5) is greater than the thickness in the district (6) that is shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201199090U CN202045184U (en) | 2011-04-21 | 2011-04-21 | Die for extruding tube with large outer diameter and thin wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201199090U CN202045184U (en) | 2011-04-21 | 2011-04-21 | Die for extruding tube with large outer diameter and thin wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202045184U true CN202045184U (en) | 2011-11-23 |
Family
ID=44985509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201199090U Expired - Lifetime CN202045184U (en) | 2011-04-21 | 2011-04-21 | Die for extruding tube with large outer diameter and thin wall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202045184U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551414A (en) * | 2013-11-15 | 2014-02-05 | 肇庆亚洲铝厂有限公司 | Extrusion die |
| CN105170691A (en) * | 2015-08-21 | 2015-12-23 | 扬州瑞斯乐复合金属材料有限公司 | Manufacturing method of composite metal circular pipe |
| CN108994105A (en) * | 2018-07-19 | 2018-12-14 | 中铝萨帕特种铝材（重庆）有限公司 | A kind of flat extruding die for aluminum shaped material of ultra-wide |
| CN109821920A (en) * | 2019-01-07 | 2019-05-31 | 上海友升铝业有限公司 | A kind of extruding spread extrusion die applied to batteries of electric automobile pallet |
| CN114850242A (en) * | 2022-05-13 | 2022-08-05 | 安徽金铂新材料科技有限公司 | Precision extrusion forming die for complex special-shaped thin-wall aluminum alloy |
-
2011
- 2011-04-21 CN CN2011201199090U patent/CN202045184U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551414A (en) * | 2013-11-15 | 2014-02-05 | 肇庆亚洲铝厂有限公司 | Extrusion die |
| CN103551414B (en) * | 2013-11-15 | 2016-04-06 | 肇庆亚洲铝厂有限公司 | A kind of extrusion die |
| CN105170691A (en) * | 2015-08-21 | 2015-12-23 | 扬州瑞斯乐复合金属材料有限公司 | Manufacturing method of composite metal circular pipe |
| CN108994105A (en) * | 2018-07-19 | 2018-12-14 | 中铝萨帕特种铝材（重庆）有限公司 | A kind of flat extruding die for aluminum shaped material of ultra-wide |
| CN109821920A (en) * | 2019-01-07 | 2019-05-31 | 上海友升铝业有限公司 | A kind of extruding spread extrusion die applied to batteries of electric automobile pallet |
| CN114850242A (en) * | 2022-05-13 | 2022-08-05 | 安徽金铂新材料科技有限公司 | Precision extrusion forming die for complex special-shaped thin-wall aluminum alloy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111123 |