CN104826887B - A kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe - Google Patents
A kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe Download PDFInfo
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- CN104826887B CN104826887B CN201510249158.7A CN201510249158A CN104826887B CN 104826887 B CN104826887 B CN 104826887B CN 201510249158 A CN201510249158 A CN 201510249158A CN 104826887 B CN104826887 B CN 104826887B
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- Prior art keywords
- core rod
- aluminum
- die sleeve
- die
- mandrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/085—Making tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention discloses a kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe, mould includes core rod, die sleeve and offers the mandrel of endoporus, and mandrel is connected by die sleeve support ring with die sleeve；One end of core rod is arranged in endoporus, and the other end of core rod is connected with die sleeve；It is 7.5mm 16mm steps that core rod, which is provided with height in one end that pattern covers,；The step is located at the junction of die sleeve and core rod；The length of the calibrating strap of core rod is 2.3mm 3mm；Core rod pad is provided between mandrel and core rod；The thickness of core rod pad is 3mm 4mm.When aluminum pipe goes out crowded aluminum die, the transit time from hot to cold conditions is long, is more uniformly stressed, be effectively prevented aluminum pipe from crowded aluminum die come out when corrugated situation occur.
Description
Technical field
The present invention relates to a kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe.
Background technology
Because the seamless aluminum-sheathed cable of the aluminum pipe solderless seam that aluminum-extruding machine is produced, therefore aluminum-extruding machine extrusion becomes market
To the first choice of high-tension cable.And when producing electric cable with large cross-section, because aluminium sheath external diameter is bigger than normal and needs thickness also larger aluminium shield
Set, which carrys out two reasons of conduct leakage current, causes the extrusion aluminum amount of aluminum-extruding machine to increase.And production of the aluminum-extruding machine in production extrusion aluminum amount greatly
It is easy for aluminum pipe corrugated situation occur during product.Due to the active demand that economic development increases to electric power, aluminium shield that heavy in section is seamless
Set cabling requirements increasingly increase, to meet the market demand, the existing necessary stability for improving aluminum-extruding machine extrusion.
Therefore those skilled in the art are directed to developing a kind of improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe.
The content of the invention
In view of the drawbacks described above of prior art, the technical problems to be solved by the invention are to provide a kind of improvement aluminum-extruding machine
Extrude the corrugated method of aluminum pipe.
To achieve the above object, the present invention provides a kind of crowded aluminum die, including core rod, die sleeve and the core for offering endoporus
Axle, is provided with die sleeve support ring between mandrel and die sleeve；
One end of core rod is arranged in endoporus, and the other end of mandrel is stretched into die sleeve；Squeeze aluminum die sizing strip length be
2.3mm-3mm。
In order that the effect of the present invention reaches most preferably, step corresponding with calibrating strap, the height of the step are provided with core rod
Spend for 7.5mm-16mm.
In order to prevent pad blocked up, there is gap between pad and mandrel, HTHP lower mold core may be rocked during production
Situation occur, core rod pad is provided between mandrel and core rod；The thickness of core rod pad is 3mm-4mm.
Preferably, the height of step is 7.7mm；Sizing strip length is 2.7mm；The thickness of core rod pad is 3.5mm；Core rod
Height be 38.5mm.
One kind improves the aluminum-extruding machine extrusion corrugated method of aluminum pipe, comprises the following steps：
1) core rod and core rod pad are assembled in the endoporus of mandrel；
2) mandrel, die sleeve support ring and die sleeve are put into head successively, then tighten big nut, by all mandrels, mould
The position of set support ring and die sleeve is fixed, and ensures that sizing strip length is 2.3mm-3mm；
3) head is hung in into aluminum-extruding machine to start to squeeze aluminium.
Preferably, the thickness of the core rod pad is 3mm-4mm；Core rod shoulder height corresponding with calibrating strap is
7.5mm-16mm。
Preferably, the shoulder height is 7.7mm；Sizing strip length is 2.7mm；The thickness of core rod pad is 3.5mm.
The beneficial effects of the invention are as follows：When aluminum pipe is extruded crowded aluminum die, the transit time from hot to cold conditions is long, by
Power is more uniform, be effectively prevented aluminum pipe from crowded aluminum die come out when corrugated situation occur.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the invention；
Fig. 2 is structure enlarged diagram at A in the embodiment of the invention；
Fig. 3 is structure enlarged diagram at B in the embodiment of the invention.
Embodiment
Invention is described further with reference to the accompanying drawings and examples：
As shown in Figure 1 to Figure 3, a kind of crowded aluminum die, including height L4 is 38.5mm core rod 1, die sleeve 2 and in offering
Hole 3a mandrel 3, is provided with die sleeve support ring 5 between mandrel 3 and die sleeve 2；
One end of core rod 1 is arranged in endoporus 3a；The sizing strip length L2 of core rod 1 is 2.7mm, therefore aluminum pipe goes out crowded aluminum dipping form
From hot long to cold conditions transit time during tool, it is more uniformly stressed, reduces out and height L1 is provided with the possibility core rod 1 of wrinkle
For 7.7mm steps 1a.
Core rod pad 4 is provided between mandrel 3 and core rod 1；The thickness L3 of core rod pad 4 is 3.5mm.It is effectively prevented
There is gap between core rod pad 4 and mandrel 3, it is to avoid core rod 1 rocks when producing at high temperature under high pressure.
Calibrating strap in the present invention only refers to, in the mold vertical mould operative end surface and the shape to ensure extruded product
The section of shape, size and surface quality.
Using above-mentioned crowded aluminum die, aluminum-extruding machine extrusion aluminum pipe corrugation can be improved, specific method comprises the following steps：
1) core rod 1 and core rod pad 4 are assembled in the endoporus 3a of mandrel 3；
2) mandrel 3, die sleeve support ring 5 and die sleeve 2 are put into head successively, then tighten big nut, by mandrel 3, mould
The position of set support ring 5 and die sleeve 2 is fixed, and ensures that sizing strip length L2 is 2.3mm-3mm；
3) head is hung in into aluminum-extruding machine to start to squeeze aluminium.
Sizing strip length is improved by adjusting the height of the core rod pad 4 between core rod 1 and mandrel 3, passes through actual peace
Dress can reduce the height of core rod pad 4 first after squeezing aluminum die, extension step 1a, and squeezing aluminum die in process of production can be more steady
It is fixed, squeeze stable can reduce of aluminum die and extrude the corrugated risk of aluminum pipe；Furthermore can also increase the length of calibrating strap, can reduce aluminum pipe from
Deformation after mould, can also reduce the extrusion corrugated risk of aluminum pipe.
When core rod pad 4 is blocked up, holding power is limited during due to assembling, and blocked up core rod pad 4 may be between mandrel 3
There is gap.During production at high temperature under high pressure, core rod 1 may be rocked.By extending the length of calibrating strap, core rod pad is reduced
4 thickness, the height reduction of adjustment core rod pad 4, is conducive to the stabilization of core rod 1.On the other hand the length of calibrating strap, aluminium are added
Transit time of pipe when being extruded crowded aluminum die from the torrid zone to cold conditions increases, and is more uniformly stressed, reduces the possibility for wrinkle occur.
The preferred embodiment of invention described in detail above.It should be appreciated that one of ordinary skill in the art need not
Creative work just can make many modifications and variations according to the design of invention.Therefore, all technical staff in the art
Pass through the available technical side of logical analysis, reasoning, or a limited experiment on the basis of existing technology according to the design of invention
Case, all should be in the protection domain being defined in the patent claims.
Claims (2)
1. one kind improves the aluminum-extruding machine extrusion corrugated method of aluminum pipe, it is characterized in that：Using a kind of crowded aluminum die, the mould includes mould
Core (1), die sleeve (2) and the mandrel (3) for offering endoporus (3a), die sleeve is provided between the mandrel (3) and the die sleeve (2)
Support ring (5)；
One end of the core rod (1) is arranged in the endoporus (3a), and the other end of the core rod (1) stretches into the die sleeve (2)
In；Step (1a) corresponding with calibrating strap is provided with the core rod (1), is set between the mandrel (3) and the core rod (1)
There is core rod pad (4)；
It the described method comprises the following steps：
1) core rod (1) and core rod pad (4) are assembled in the endoporus of mandrel (3) (3a)；The thickness of the core rod pad (4) is
3mm-4mm；The core rod (1) step (1a) corresponding with calibrating strap is highly 7.5mm-16mm；
2) mandrel (3), die sleeve support ring (5) and die sleeve (2) are put into head successively, then tighten big nut, by the core
The position of axle (3), die sleeve support ring (5) and die sleeve (2) is fixed, and ensures that sizing strip length (L2) is 2.3mm-3mm；
3) head is hung in into aluminum-extruding machine to start to squeeze aluminium.
2. a kind of aluminum-extruding machine that improves as claimed in claim 1 extrudes the corrugated method of aluminum pipe, it is characterized in that：The step (1a)
Highly it is 7.7mm；The sizing strip length is 2.7mm；The thickness of the core rod pad (4) is 3.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249158.7A CN104826887B (en) | 2015-05-15 | 2015-05-15 | A kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510249158.7A CN104826887B (en) | 2015-05-15 | 2015-05-15 | A kind of crowded aluminum die and the improvement aluminum-extruding machine extrusion corrugated method of aluminum pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104826887A CN104826887A (en) | 2015-08-12 |
| CN104826887B true CN104826887B (en) | 2017-09-29 |
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| CN108655198A (en) * | 2018-08-19 | 2018-10-16 | 重庆泰山电缆有限公司 | A kind of crowded aluminum die locking member and improve aluminum-extruding machine die sleeve deformation method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204685695U (en) * | 2015-05-15 | 2015-10-07 | 重庆泰山电缆有限公司 | A kind of crowded aluminum die |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK0398747T3 (en) * | 1989-05-18 | 1994-03-28 | Bwe Ltd | Continuous extruder |
| US5870921A (en) * | 1997-07-31 | 1999-02-16 | Piccinin; Gabriel | Extrusion die for semi-hollow and hollow extruded shapes and tube |
| GB0722515D0 (en) * | 2007-11-15 | 2007-12-27 | Bwe Ltd | Continuous extrusion apparatus |
| CN102228912A (en) * | 2009-07-08 | 2011-11-02 | 合肥神马科技股份有限公司 | Extrusion system |
| CN101716614B (en) * | 2009-11-24 | 2011-10-19 | 大连康丰科技有限公司 | Four-channel tapered die forming vertical continuous extrusion cladding method and equipment |
| CN202824209U (en) * | 2012-09-27 | 2013-03-27 | 吉林麦达斯铝业有限公司 | Two-sectional sizing working tape porthole die for aluminum alloy extruded pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204685695U (en) * | 2015-05-15 | 2015-10-07 | 重庆泰山电缆有限公司 | A kind of crowded aluminum die |
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