CN104826887A - Aluminum extruding mold and method for improving wrinkling phenomenon of extruded aluminum tube of aluminum extruding machine - Google Patents
Aluminum extruding mold and method for improving wrinkling phenomenon of extruded aluminum tube of aluminum extruding machine Download PDFInfo
- Publication number
- CN104826887A CN104826887A CN201510249158.7A CN201510249158A CN104826887A CN 104826887 A CN104826887 A CN 104826887A CN 201510249158 A CN201510249158 A CN 201510249158A CN 104826887 A CN104826887 A CN 104826887A
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- Prior art keywords
- aluminum
- core rod
- mold
- mandrel
- die
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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 an aluminum extruding mold and a method for improving the wrinkling phenomenon of an extruded aluminum tube of an aluminum extruding machine. The aluminum extruding mold comprises a mold core, a mold sleeve and a mandrel provided with an inner hole, wherein the mandrel is connected with the mold sleeve by a mold sleeve supporting ring, one end of the mold core is arranged in the inner hole, the other end of the mold core is connected with the mold sleeve, a step of which the height is 7.5-16mm is arranged at one end, close to the mold sleeve, of the mold core, the step is located at the connecting position of the mold sleeve and the mold core, the diameter fixing zone of the mold core is 2.3-3mm in length, a mold core gasket is arranged between the mandrel and the mold core, and the thickness of the mold core gasket is 3-4mm. when the aluminum tube is extruded out of the aluminum extruding mold, the transient time from thermal state to cold state is long, the stress is uniform, and the wrinkling phenomenon of the aluminum tube extruded from the aluminum extruding mold can be effectively avoided.
Description
Technical field
The present invention relates to a kind of crowded aluminum die and improve aluminum-extruding machine and extrude the wrinkling method of aluminum pipe.
Background technology
Due to the aluminum pipe solderless seam that aluminum-extruding machine is produced, the seamless aluminum-sheathed cable that therefore aluminum-extruding machine is extruded becomes the first-selection of market to high-tension cable.And produce electric cable with large cross-section time, due to aluminium sheath external diameter bigger than normal and need thickness also larger aluminium sheath come conduct leakage current two reasons cause aluminum-extruding machine extrude aluminum amount increase.And just easily there is the situation that aluminum pipe is wrinkling when producing and extruding the large product of aluminum amount in aluminum-extruding machine.Due to the active demand that economic development increases electric power, heavy in section is seamless, and aluminum-sheathed cable demand increases day by day, and for meeting the need of market, existing necessity improves the stability that aluminum-extruding machine is extruded.
Therefore those skilled in the art are devoted to develop a kind of aluminum-extruding machine that improves and extrude the wrinkling method of aluminum pipe.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is to provide a kind of aluminum-extruding machine that improves and extrudes the wrinkling method of aluminum pipe.
For achieving the above object, the invention provides and a kind of squeeze aluminum die, comprise core rod, die sleeve and offer the mandrel of endoporus, between mandrel and die sleeve, be provided with die sleeve support ring;
One end of core rod is arranged in endoporus, and the other end of mandrel stretches in die sleeve; The calibrating strap length of squeezing aluminum die is 2.3mm-3mm.
In order to make effect of the present invention reach best, core rod is provided with the step corresponding to calibrating strap, the height of this step is 7.5mm-16mm.
In order to prevent pad blocked up, there is gap between pad and mandrel, the situation that during production, HTHP lower mold core may be rocked occurs, and is provided with core rod pad between mandrel and core rod; The thickness of core rod pad is 3mm-4mm.
Preferably, the height of step is 7.7mm; Calibrating strap length is 2.7mm; The thickness of core rod pad is 3.5mm; The height of core rod is 38.5mm.
Improve aluminum-extruding machine and extrude the wrinkling method of aluminum pipe, comprise the following steps:
1) core rod and core rod pad are assembled in the endoporus of mandrel;
2) successively mandrel, die sleeve support ring and die sleeve are put into head, tighten big nut subsequently, the position of all mandrels, die sleeve support ring and die sleeve is fixed, and guarantee that calibrating strap length is 2.3mm-3mm;
3) head is hung in aluminum-extruding machine and start crowded aluminium.
Preferably, the thickness of described core rod pad is 3mm-4mm; The shoulder height that described core rod is corresponding with calibrating strap is 7.5mm-16mm.
Preferably, described shoulder height is 7.7mm; Calibrating strap length is 2.7mm; The thickness of core rod pad is 3.5mm.
The invention has the beneficial effects as follows: when aluminum pipe is extruded crowded aluminum die, long from the hot transit time to cold conditions, stressed more even, effectively prevent aluminum pipe from crowded aluminum die out time wrinkling situation occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is A place structure enlarged diagram in the embodiment of the invention;
Fig. 3 is B place structure enlarged diagram in the embodiment of the invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, invention is described further:
As shown in Figure 1 to Figure 3, a kind of squeeze aluminum die, comprise core rod 1 that height L4 is 38.5mm, die sleeve 2 and offer the mandrel 3 of endoporus 3a, between mandrel 3 and die sleeve 2, be provided with die sleeve support ring 5;
One end of core rod 1 is arranged in endoporus 3a; The calibrating strap length L2 of core rod 1 is 2.7mm, from hot long for transit time to cold conditions when therefore aluminum pipe goes out crowded aluminum die, stressed more even, and it is 7.7mm step 1a that the possibility core rod 1 decreasing out wrinkle is provided with height L1.
Core rod pad 4 is provided with between mandrel 3 and core rod 1; The thickness L3 of core rod pad 4 is 3.5mm.Effectively prevent between core rod pad 4 and mandrel 3 and there is gap, avoid the rocking of core rod 1 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 in order to the section of the shape, size and the surface quality that ensure extruded product.
Adopt above-mentioned crowded aluminum die, can improving aluminum-extruding machine, to extrude aluminum pipe wrinkling, and concrete grammar comprises the following steps:
1) core rod 1 and core rod pad 4 are assembled in the endoporus 3a of mandrel 3;
2) successively mandrel 3, die sleeve support ring 5 and die sleeve 2 are put into head, tighten big nut subsequently, the position of mandrel 3, die sleeve support ring 5 and die sleeve 2 is fixed, and guarantee that calibrating strap length L2 is 2.3mm-3mm;
3) head is hung in aluminum-extruding machine and start crowded aluminium.
Calibrating strap length is improved by regulating the height of the core rod pad 4 between core rod 1 and mandrel 3, aluminum die is squeezed by actual installation, first the height of core rod pad 4 can be reduced after extending step 1a, squeezing aluminum die in process of production can be more stable, and crowded aluminum die is stablized to reduce and extruded the wrinkling risk of aluminum pipe; Moreover also can increase the length of calibrating strap, aluminum pipe can be reduced from the distortion after mould, also can reduce and extrude the wrinkling risk of aluminum pipe.
When core rod pad 4 is blocked up, due to assembling time holding power limited, blocked up core rod pad 4 may and mandrel 3 between there is gap.During production at high temperature under high pressure, core rod 1 may rock.By extending the length of calibrating strap, reduce the thickness of core rod pad 4, adjustment core rod pad 4 height reduction, is conducive to the stable of core rod 1.Add on the other hand the length of calibrating strap, transit time when aluminum pipe is extruded crowded aluminum die from the torrid zone to cold conditions increases, stressed more even, reduces the possibility occurring wrinkle.
More than describe the preferred embodiment of invention in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to the design of invention without the need to creative work.Therefore, all technical staff in the art according to the design of invention on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should by the determined protection domain of claims.
Claims (7)
1. a crowded aluminum die, comprise core rod (1), die sleeve (2) and offer the mandrel (3) of endoporus (3a), between described mandrel (3) and described die sleeve (2), be provided with die sleeve support ring (5);
One end of described core rod (1) is arranged in described endoporus (3a), and the other end of described mandrel (1) stretches in described die sleeve (2); It is characterized in that: the calibrating strap length (L2) of described crowded aluminum die is 2.3mm-3mm.
2. crowded aluminum die as claimed in claim 1, it is characterized in that: described core rod (1) is provided with the step (1a) corresponding to described calibrating strap, the height (L1) of this step (1a) is 7.5mm-16mm.
3. crowded aluminum die as claimed in claim 2, is characterized in that: be provided with core rod pad (4) between described mandrel (3) and described core rod (1); The thickness (L3) of described core rod pad (4) is 3mm-4mm.
4. crowded aluminum die as claimed in claim 3, is characterized in that: the height (L1) of described step (1a) is 7.7mm; Described calibrating strap length (L2) is 2.7mm; The thickness (L3) of described core rod pad (4) is 3.5mm; The height (L4) of described core rod (1) is 38.5mm.
5. improve aluminum-extruding machine and extrude the wrinkling method of aluminum pipe, it is characterized in that: comprise the following steps:
1) core rod (1) and core rod pad (4) are assembled in the endoporus (3a) of mandrel (3);
2) successively mandrel (3), die sleeve support ring (5) and die sleeve (2) are put into head, tighten big nut subsequently, the position of all mandrels (3), die sleeve support ring (5) and die sleeve (2) is fixed, and guarantees that calibrating strap length (L2) is 2.3mm-3mm;
3) head is hung in aluminum-extruding machine and start crowded aluminium.
6. a kind of aluminum-extruding machine that improves as claimed in claim 5 extrudes the wrinkling method of aluminum pipe, it is characterized in that: the thickness of described core rod pad (4) is 3mm-4mm; The step (1a) that described core rod (1) is corresponding with calibrating strap is highly 7.5mm-16mm.
7. a kind of aluminum-extruding machine that improves as claimed in claim 6 extrudes the wrinkling method of aluminum pipe, it is characterized in that: described step (1a) is highly 7.7mm; Calibrating strap length is 2.7mm; The thickness of 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 |
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| 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 |
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| Publication Number | Publication Date |
|---|---|
| CN104826887A true CN104826887A (en) | 2015-08-12 |
| CN104826887B CN104826887B (en) | 2017-09-29 |
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| CN201510249158.7A Active 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 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| US5152163A (en) * | 1989-05-18 | 1992-10-06 | Bwe Limited | Continuous extrusion apparatus |
| US5870921A (en) * | 1997-07-31 | 1999-02-16 | Piccinin; Gabriel | Extrusion die for semi-hollow and hollow extruded shapes and tube |
| CN101663108A (en) * | 2007-11-15 | 2010-03-03 | Bwe有限公司 | Continuous extrusion apparatus |
| CN101716614A (en) * | 2009-11-24 | 2010-06-02 | 大连康丰科技有限公司 | Four-channel tapered die forming vertical continuous extrusion cladding method and equipment |
| CN102228912A (en) * | 2009-07-08 | 2011-11-02 | 合肥神马科技股份有限公司 | Extrusion system |
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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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2015
- 2015-05-15 CN CN201510249158.7A patent/CN104826887B/en active Active
Patent Citations (7)
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|---|---|---|---|---|
| US5152163A (en) * | 1989-05-18 | 1992-10-06 | Bwe Limited | Continuous extrusion apparatus |
| US5870921A (en) * | 1997-07-31 | 1999-02-16 | Piccinin; Gabriel | Extrusion die for semi-hollow and hollow extruded shapes and tube |
| CN101663108A (en) * | 2007-11-15 | 2010-03-03 | Bwe有限公司 | 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 |
| CN101716614A (en) * | 2009-11-24 | 2010-06-02 | 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 |
| 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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| 刘元文等: "电缆铝护套连续挤压包覆模具的设计", 《锻压技术》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Publication date |
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| CN104826887B (en) | 2017-09-29 |
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