CN102773298A - Sector shunting hot extrusion die for aluminum alloy circular pipes - Google Patents
Sector shunting hot extrusion die for aluminum alloy circular pipes Download PDFInfo
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- CN102773298A CN102773298A CN2011101189479A CN201110118947A CN102773298A CN 102773298 A CN102773298 A CN 102773298A CN 2011101189479 A CN2011101189479 A CN 2011101189479A CN 201110118947 A CN201110118947 A CN 201110118947A CN 102773298 A CN102773298 A CN 102773298A
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- shunting
- die
- patrix
- sector
- aluminum alloy
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Abstract
The invention relates to a sector shunting hot extrusion die for aluminum alloy circular pipes. The die is mainly used for hot extrusion of aluminum alloy circular pipes and composed of an upper die and a lower die which are superposed. Three shunting bridges with chamfers at a same side are distributed on a feeding surface of the upper die, and three shunting holes are formed among the shunting bridges and are in the shape of a sector; a seaming chamber is arranged on a discharging surface of the upper die and is circular; a cylindrical mold core is arranged at the center of the seaming chamber; a fixed pin and a fixed hole are also arranged on the discharging surface of the upper die; and a feeding surface of the lower die is provided with a cavity work zone and with a fixed pin and a fixed hole symmetrical with the fixed pin and the fixed hole on the discharging surface of the upper die. The sector shunting hot extrusion die provided by the invention can employ a forward extruder for extrusion of seamless aluminum alloy circular pipes.
Description
One, technical field
The invention belongs to the hot-extrusion mold technical field, relate in particular to a kind of hot-extrusion mold of tube and pipe of aluminium alloy.
Two, 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 purposes of pipe class is more extensive, has most of pipe class aluminium section bar to accomplish following process with bending, cold-drawn and stretching technique, with shape of product and the size that reaches regulation.Traditional aluminum alloy round pipe mold tap hole is trapezoidal, shunting bridge guiding both sides, and design can cause that extruding aluminium section bar has the seam seam like this, causes aluminium section bar when bending, to fold the crack easily; When cold-drawn, pull into several half easily; When stretching, split easily.Trace it to its cause, be because: the patrix tap hole is square, and aluminium alloy flings when extruding is flowed; The shunting bridge adopts straight bridge mode, a little less than the mobile dynamics of metal, when making the tube and pipe of aluminium alloy moulding, can not well combine.If adopt indirect extrusion machine to push seamless tube and pipe of aluminium alloy, then the equipment input cost is expensive, the extruding cost is 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 tube and pipe of aluminium alloy solderless joint close, most critical be exactly to be mould design invention, have only mould design invention just can overcome the above problems.
Three, summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, a kind of sector diffuence hot-extrusion mold that can push seamless tube and pipe of aluminium alloy with the forward extrusion machine is provided.
Technical scheme of the present invention is following: a kind of tube and pipe of aluminium alloy sector diffuence hot-extrusion mold is to be formed by stacking before and after the upper die and lower die.Said patrix charging face is distributed with three shunting bridges, forms three tap holes between three shunting bridges; Go out charge level at patrix and be provided with the seam chamber, this seam chamber is rounded; Center in the seam chamber is provided with cylindrical core rod; Patrix goes out charge level and also is provided with steady pin and fixing hole.Said counterdie charging face is provided with a die cavity work zone, is provided with simultaneously and steady pin and the fixing hole of patrix discharging in the face of claiming.
Form three tap hole cross sections between above-mentioned three shunting bridges and all be fan-shaped, three shunting bridges all adopt to the shunting bridge with one side chamfering, strengthen the fluid ability of metal.
Above-mentioned upper and lower mould all is provided with steady pin and fixing hole, and symmetrically, can upper and lower mould better be fixed up.
Patrix of the present invention utilizes three sector diffuence-holes, and shunts bridge and adopt the mode to middle chamfering, makes aluminium alloy when extruding, can strengthen the fluid ability of metal.Simultaneously; The seam chamber is arranged on patrix to be gone out on the charge level; Directly extrude aluminium alloy pipe, make tubing solderless joint close, after extruding is accomplished, can stand follow-up bending test thereby reach aluminium alloy pipe through core rod and counterdie die cavity work zone; Not separated when guaranteeing cold-drawn, not crackable purpose when guaranteeing to stretch.
Four, description of drawings
Fig. 1 is the upper and lower mould sectional structure chart of the present invention.
Fig. 2 goes out the charge level sketch map for patrix of the present invention.
Fig. 3 is a patrix charging face sketch map of the present invention.
Fig. 4 is a counterdie charging face sketch map of the present invention.
Be labeled as among the figure: 1 patrix, 2 tap holes, 3 shunting bridges, 4 core rods, 5 patrix steady pins, 6 patrix fixing holes, seam chambers 7,8 counterdies, 9 die cavity work zones, 10 counterdie steady pins, 11 counterdie fixing holes.
Five, the specific embodiment
The specific embodiment of the invention is: this mould is formed by stacking patrix 1 and counterdie 8 front and back.Patrix charging face is distributed with and forms three tap holes 2 between 3, three shunting bridges 3 of three shunting bridges; Go out charge level at patrix and be provided with seam chamber 7, this seam chamber 7 is rounded; Center in seam chamber 7 is provided with cylindrical core rod 4; Patrix goes out charge level and also is provided with steady pin 5 and fixing hole 6.Counterdie charging face is provided with a die cavity work zone 9, is provided with simultaneously and the steady pin 10 and fixing hole 11 of patrix discharging in the face of claiming.
Form three tap hole 2 cross sections between three shunting bridges 3 and all be fan-shaped, three shunting bridges 3 all adopt to the shunting bridge 3 with one side chamfering.Upper and lower mould (1,8) all is provided with steady pin and fixing hole, and symmetrically, upper and lower mould (1,8) better is fixed up.
Claims (3)
1. a tube and pipe of aluminium alloy sector diffuence hot-extrusion mold is formed by stacking before and after the upper die and lower die, and it is characterized in that: patrix charging face is distributed with three shunting bridges, forms three tap holes between three shunting bridges; Go out charge level at patrix and be provided with the seam chamber, this seam chamber is rounded; Center in the seam chamber is provided with cylindrical core rod; Patrix goes out charge level and also is provided with steady pin and fixing hole.Said counterdie charging face is provided with a die cavity work zone, is provided with simultaneously and steady pin and the fixing hole of patrix discharging in the face of claiming.
2. all be fan-shaped according to forming three tap hole cross sections between said three the shunting bridges of claim 1, three shunting bridges all adopt to the shunting bridge with one side chamfering.
3. all be provided with steady pin and fixing hole according to the said upper and lower mould of claim 1, and symmetrically, upper and lower mould better be fixed up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101189479A CN102773298A (en) | 2011-05-10 | 2011-05-10 | Sector shunting hot extrusion die for aluminum alloy circular pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101189479A CN102773298A (en) | 2011-05-10 | 2011-05-10 | Sector shunting hot extrusion die for aluminum alloy circular pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102773298A true CN102773298A (en) | 2012-11-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101189479A Pending CN102773298A (en) | 2011-05-10 | 2011-05-10 | Sector shunting hot extrusion die for aluminum alloy circular pipes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102773298A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103143585A (en) * | 2013-04-02 | 2013-06-12 | 慈溪市宜美佳电器有限公司 | Circular tube forming fan-blade type divergent upper die and corresponding divergent die thereof |
| CN103846302A (en) * | 2012-11-28 | 2014-06-11 | 昆山捷安特轻合金科技有限公司 | Extrusion mold with improved structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748885A (en) * | 1969-12-08 | 1973-07-31 | R Creuzet | Extrusion machine |
| JPH02192817A (en) * | 1989-01-19 | 1990-07-30 | Showa Alum Corp | Extrusion die for hollow section |
| CN101357376A (en) * | 2008-09-01 | 2009-02-04 | 江阴市江顺模具有限公司 | Novel aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold |
| CN101648229A (en) * | 2009-07-09 | 2010-02-17 | 西南铝业（集团）有限责任公司 | Porthole extrusion die |
| CN101664770A (en) * | 2009-08-26 | 2010-03-10 | 江阴市江顺模具有限公司 | Multi-output thin-wall small circular tube type aluminium profile hot extrusion mould |
| US20100132430A1 (en) * | 2008-12-03 | 2010-06-03 | Ping-Hsun Tsai | Extrusion die device |
-
2011
- 2011-05-10 CN CN2011101189479A patent/CN102773298A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3748885A (en) * | 1969-12-08 | 1973-07-31 | R Creuzet | Extrusion machine |
| JPH02192817A (en) * | 1989-01-19 | 1990-07-30 | Showa Alum Corp | Extrusion die for hollow section |
| CN101357376A (en) * | 2008-09-01 | 2009-02-04 | 江阴市江顺模具有限公司 | Novel aluminum circular tube sector diffuence-hole spiral bridge hot-extrusion mold |
| US20100132430A1 (en) * | 2008-12-03 | 2010-06-03 | Ping-Hsun Tsai | Extrusion die device |
| CN101648229A (en) * | 2009-07-09 | 2010-02-17 | 西南铝业（集团）有限责任公司 | Porthole extrusion die |
| CN101664770A (en) * | 2009-08-26 | 2010-03-10 | 江阴市江顺模具有限公司 | Multi-output thin-wall small circular tube type aluminium profile hot extrusion mould |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846302A (en) * | 2012-11-28 | 2014-06-11 | 昆山捷安特轻合金科技有限公司 | Extrusion mold with improved structure |
| CN103143585A (en) * | 2013-04-02 | 2013-06-12 | 慈溪市宜美佳电器有限公司 | Circular tube forming fan-blade type divergent upper die and corresponding divergent die thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121114 |