CN201271664Y - Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die - Google Patents
Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die Download PDFInfo
- Publication number
- CN201271664Y CN201271664Y CNU2008200395824U CN200820039582U CN201271664Y CN 201271664 Y CN201271664 Y CN 201271664Y CN U2008200395824 U CNU2008200395824 U CN U2008200395824U CN 200820039582 U CN200820039582 U CN 200820039582U CN 201271664 Y CN201271664 Y CN 201271664Y
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- relief
- bridges
- hot extrusion
- circular tube
- aluminum
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Abstract
The utility model relates to an aluminum round pipe hot extrusion die with fan-shaped relief-holes and spiral bridges, which is mainly used for the hot extrusion of aluminum round pipe profile. The hot extrusion die is formed by overlapping an upper die (1) and a lower die (2) in fore-and-aft directions. Five relief-bridges (1.2) are uniformly and spirally distributed on the feed surface of the upper die (1) in the circumferential direction, and five relief-holes (1.1) are formed among the five relief-bridges (1.2); the cross-sections of the five relief-holes (1.1) are all in a fan shape, and the five relief-bridges (1.2) are chamfered towards the same edge. A welding chamber (2.1) is arranged on the feed surface of the lower die (2), and the cross-section of the welding chamber (2.1) is round; and the length of the line-cavity working belt of the welding chamber (2.1) ranges from 2.5 to 3.0 mm. The utility model can use a forward extruder to extrude the seamless round pipe aluminum profile.
Description
(1) technical field
The utility model relates to a kind of aluminium section hot-extrusion die.Be mainly used in the hot extrusion of aluminium pipe section bar.Belong to the mold machining technology field.
(2) background technology
Continuous development along with the aluminium section bar industry technology, the purposes of aluminium section bar also is more and more wider, particularly the aluminium section bar (see figure 7) purposes of pipe class is more extensive, there is most pipe class aluminium section bar to finish following process, with shape of product and the size that reaches regulation with bending, cold group and stretching technique.Traditional aluminium pipe mould tap hole is trapezoidal, and the shunting bridge is swung to two limits, and design can cause that extruding aluminium section bar has the seam seam, causes aluminium section bar to fold the crack easily when bending like this; In the time of cold group, pull into several half easily; When stretching, split easily.Trace it to its cause, be because: the patrix tap hole is square, and aluminum metal flings when extruding is flowed; The shunting bridge adopts straight bridge mode, a little less than the mobile dynamics of metal, makes metal can not finish rotation when extruding is flowed.As push seamless pipe aluminium section bar with indirect extrusion machine, then equipment input cost costliness, extruding cost are too high, and a lot of producers can't accept high investment, expensive production pressure.How to invent a kind of forward extrusion machine and satisfy the technology extrude aluminium pipe solderless joint close, most critical be exactly to be mould design invention, have only mould design invention just can overcome the above problems.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold that can push seamless pipe aluminium section bar with the forward extrusion machine is provided.
The purpose of this utility model is achieved in that a kind of aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold, is formed by stacking by before and after the upper die and lower die,
Described patrix charging face circumferentially in the shape of a spiral shape be evenly equipped with five shunting bridges, form five tap holes between five shunting bridges, described five tap hole cross sections are all made fan shape, described five shunting bridges all adopt to the shunting bridge of chamfering on one side,
Described counterdie charging face is provided with the seam chamber, and this seam chamber cross-section is rounded, and an actor's rendering of an operatic tune land length of this seam chamber is 2.5～3.0mm.
Compare with existing similar mould, the utlity model has following advantage:
Patrix of the present utility model utilizes five sector diffuence-holes, make aluminum metal when extruding is flowed, produce a kind of dynamics to rotation on one side, and five shunting bridges adopt the mode to one side chamfering, have accelerated the mobile rotation dynamics of metal more, make metal can finish rotation when extruding is flowed; Counterdie of the present utility model adopts circular seam chamber, and not hinder the rotation of barrier metal when the seam of seam chamber, an actor's rendering of an operatic tune land length is 2.5～3.0mm, to reduce high-drag, the high pressure that metal produces when extruding an actor's rendering of an operatic tune, avoids resistance to rotate dynamics slowly.
The present invention is in extrusion process, adopt the sector diffuence-hole of patrix to produce bigger revolving force, the rotation chamfering dynamics accelerating to rotate by the shunting bridge, counterdie then adopts the method that does not hinder rotational flow to realize extruding aluminium section bar to be in rotation status always, section bar also is a kind of rotation status on cold bed, thereby reached the seam seam and become a kind of spiral lines, well-regulated being distributed on the aluminium section bar.After finishing, extruding can stand follow-up bending test thereby reach aluminium section bar, and not separated when guaranteeing cold group, not crackable purpose when guaranteeing to stretch.
(4) description of drawings
Fig. 1 is the front view of the utility model mould.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is a patrix front view of the present utility model.
Fig. 4 is the B-B cut-away view of Fig. 3.
Fig. 5 is the front view of counterdie of the present utility model.
Fig. 6 is the C-C cut-away view of Fig. 5.
The end view drawing of the aluminium pipe section bar that Fig. 7 relates to for the utility model.
Among the figure: patrix 1, counterdie 2; Tap hole 1.1, shunting bridge 1.2, core rod 1.3, seam chamber 2.1, die cavity work zone 2.2.
(5) specific embodiment
Referring to Fig. 1～2, the aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold that the utility model relates to is formed by stacking by patrix 1 and counterdie 2 front and back, and is middle with two screws and two pin assemblings (close-fitting).
Referring to Fig. 3～4, described patrix 1 charging face circumferentially in the shape of a spiral shape be evenly equipped with five tap holes 1.1 and five shunting bridges 1.2, described five tap hole 1.1 cross sections are all made fan shape, described five shunting bridges 1.2 all adopt to chamfering on one side.
Referring to Fig. 5～6, described counterdie 2 charging faces are provided with seam chamber 2.1, and these seam chamber 2.1 cross sections are rounded, and an actor's rendering of an operatic tune land length of this seam chamber 2.1 is 2.5～3.0mm.
Claims (1)
1, a kind of aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold by being formed by stacking before and after patrix (1) and the counterdie (2), is characterized in that:
Described patrix (1) charging face circumferentially in the shape of a spiral shape be evenly equipped with five shunting bridges (1.2), form five tap holes (1.1) between five shunting bridges (1.2), described five tap holes (1.1) cross section is all made fan shape, described five shunting bridges (1.2) all adopt to the shunting bridge with one side chamfering
Described counterdie (2) charging face is provided with seam chamber (2.1), and this seam chamber (2.1) cross section is rounded, and an actor's rendering of an operatic tune land length of this seam chamber (2.1) is 2.5～3.0mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200395824U CN201271664Y (en) | 2008-09-01 | 2008-09-01 | Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200395824U CN201271664Y (en) | 2008-09-01 | 2008-09-01 | Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201271664Y true CN201271664Y (en) | 2009-07-15 |
Family
ID=40882017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200395824U Expired - Fee Related CN201271664Y (en) | 2008-09-01 | 2008-09-01 | Aluminum circular tube sectorial diffluent hole spiral bridge hot extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201271664Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008381A (en) * | 2012-12-11 | 2013-04-03 | 烟台大学 | Stirring split-flow die and method for extruding structural section by using same |
| CN103143584A (en) * | 2013-04-09 | 2013-06-12 | 河南理工大学 | Device for preparing alloy with uniform organization and performance |
| CN103375675A (en) * | 2012-04-26 | 2013-10-30 | 昆山市源丰铝业有限公司 | Flat and long aluminum profile and aluminum extrusion combination die for same |
| CN104550295A (en) * | 2013-10-16 | 2015-04-29 | 合肥神马科技集团有限公司 | Extrusion die for metal tube |
| CN104550294A (en) * | 2013-10-16 | 2015-04-29 | 合肥神马科技集团有限公司 | Extrusion die for metal tube |
-
2008
- 2008-09-01 CN CNU2008200395824U patent/CN201271664Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375675A (en) * | 2012-04-26 | 2013-10-30 | 昆山市源丰铝业有限公司 | Flat and long aluminum profile and aluminum extrusion combination die for same |
| CN103008381A (en) * | 2012-12-11 | 2013-04-03 | 烟台大学 | Stirring split-flow die and method for extruding structural section by using same |
| CN103008381B (en) * | 2012-12-11 | 2015-08-05 | 烟台大学 | A kind of method stirring shunting mould and application stirring shunting mould extrudate |
| CN103143584A (en) * | 2013-04-09 | 2013-06-12 | 河南理工大学 | Device for preparing alloy with uniform organization and performance |
| CN104550295A (en) * | 2013-10-16 | 2015-04-29 | 合肥神马科技集团有限公司 | Extrusion die for metal tube |
| CN104550294A (en) * | 2013-10-16 | 2015-04-29 | 合肥神马科技集团有限公司 | Extrusion die for metal tube |
| CN104550294B (en) * | 2013-10-16 | 2017-08-29 | 合肥神马科技集团有限公司 | A kind of extrusion die of metal tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20120901 |