CN204892585U - Microchannel aluminum flat tube extrusion die - Google Patents
Microchannel aluminum flat tube extrusion die Download PDFInfo
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- CN204892585U CN204892585U CN201520638388.8U CN201520638388U CN204892585U CN 204892585 U CN204892585 U CN 204892585U CN 201520638388 U CN201520638388 U CN 201520638388U CN 204892585 U CN204892585 U CN 204892585U
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- mould
- extrusion die
- straight section
- bridge
- flat tube
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Abstract
The utility model discloses a microchannel aluminum flat tube extrusion die, a microchannel aluminum flat tube extrusion die, including last mould, lower mould and mould bridge, to go up the mould and install the up end at the lower mould, the mould bridge sets up in last mould, is provided with to cut apart the material way that forms by the mould bridge in last mould and lower mould, expects the inclined plane of internal surface for leaning out of the entry of way, the inclined plane is 30 with the planar contained angle that is on a parallel with material way entry direction, the aluminium material says with the material that straight section becomes the positive correlation relation with the frictional force between the mould, and the straight section that the material was said is long more, and the frictional force between aluminium material and the mould is just big more, because the utility model discloses the internal surface that to expect the entry sets up the inclined plane for leaning out, and the straight section that makes the material say shortens, and shortening of straight section has reduced the length that the material was said in other words, has also directly reduced the frictional force between aluminium material and the mould, makes the operating pressure of extruder reduce, has directly reduced the extrusion ratio.
Description
Technical field
The utility model belongs to the mould for aluminium extrusion processing, is specifically related to the pressure reduction structure of a kind of microchannel aluminium flat conduit extrusion die.
Technical background
The making process technology of microchannel aluminium flat conduit belongs to the highest class of difficulty in aluminum products process technology, because the cross-sectional area of this series products is very little, generally at 10mm
2left and right, in current process technology, general employing mould extruding carrys out production microchannel aluminium flat conduit, such as, but even if adopt porous extruding, one enters four goes out or one enters six extrusion dies gone out and produce, the extrusion ratio of mould also can reach about 500 times, and at present, in global manufacturing to extrusion ratio general control at 8 ~ 50 times, therefore to be in the industry cycle considered to difficulty the highest in the design of the extrusion die of microchannel aluminium flat conduit.The extrusion die of existing microchannel aluminium flat conduit is made up of a patrix and a counterdie substantially; its structure diagram is as Fig. 1 and Fig. 2; in this mould; the top and bottom in material road 33 are equally large, and the inwall in material road is straight, and squeeze pressure required when this structure makes to produce is very high; often reach the upper limit extruding force of extruder defined; often occur that squeeze pressure exceedes the situation of upper limit extruding force, not only reduce the service life of equipment, but also often can damage extrusion die.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect, and provide a kind of microchannel aluminium flat conduit extrusion die, this extrusion die has novel structure, can reduce extruding force, thus production is protected, and equipment reduces fault.
The utility model adopts following technical scheme:
A kind of microchannel aluminium flat conduit extrusion die, comprise upper die and lower die and mould bridge, patrix is arranged on the upper surface of counterdie, mould bridge is arranged in patrix, the material road be split to form by mould bridge is provided with in upper die and lower die, the inner surface of entrance in material road is outward-dipping inclined-plane, and described inclined-plane is 30 ° with the angle being parallel to the plane of expecting road Way in.
The utility model operationally, aluminium material is put into the material road of mould, then it is extruded, the aluminium material extruded from mould forms microchannel aluminium flat conduit, aluminium material becomes positive correlation with the frictional force between mould with material road flat segments, the flat segments in material road is longer, frictional force between aluminium material and mould is larger, because the inner surface of material road entrance is set to outward-dipping inclined-plane by the utility model, the flat segments in Shi Liao road shortens, the shortening of flat segments is equivalent to the length reducing material road, also the frictional force between aluminium material and mould is directly reduced, the operating pressure of extruder is reduced.
Inclined-plane is a best angle with the angle being parallel to the plane of expect road Way at 30 °, when this angle=15 °, can form one and hinder angle, resistance can be increased on the contrary, but after >=15 °, start alleviation gradually to the flow resistance of aluminium.Therefore the angle at > 15 ° of angles can be described as short stream angle.The angle of certain flow resistance optimum is 45 °, but the limit is arrived in the position on mould 30 ° time, so the best should be 30 ° of angles.
The material road of mould increases when this inclined-plane can make mould squeeze pressure when extruding not increase inclined-plane and decline 15 ~ 20%, so just the difficulty greatly lowered in product manufacturing can also save the energy simultaneously.
Accompanying drawing illustrates:
Fig. 1 is the structure diagram of mould in prior art.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is structure diagram of the present utility model.
Fig. 4 is the top view of Fig. 3.
Mark in figure:
1-patrix, 2-mould bridge, 3-material road, 4-counterdie, 33-material road of the prior art.
Detailed description of the invention:
Consult Fig. 3 and Fig. 4, a kind of microchannel aluminium flat conduit extrusion die, comprise patrix 1, counterdie 4 and mould bridge 2, patrix 1 is arranged on the upper surface of counterdie 4, mould bridge 2 is arranged in patrix 1, in patrix 1 and counterdie 4, be provided with the material road 3 be split to form by mould bridge 2, the inner surface of entrance in material road 3 is outward-dipping inclined-plane, and described inclined-plane is 30 ° with the angle being parallel to the plane of expecting road Way in.
In the accompanying drawings, inclined-plane represents by symbol α with the angle being parallel to the plane of expect road Way in, and in the present embodiment, inclined-plane and the angle α being parallel to the plane of expecting road Way in are 30 °.
Claims (1)
1. a microchannel aluminium flat conduit extrusion die, comprise upper die and lower die and mould bridge, patrix is arranged on the upper surface of counterdie, mould bridge is arranged in patrix, the material road be split to form by mould bridge is provided with in upper die and lower die, it is characterized in that: the inner surface of entrance in material road is outward-dipping inclined-plane, described inclined-plane is 30 ° with the angle being parallel to the plane of expecting road Way in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638388.8U CN204892585U (en) | 2015-08-21 | 2015-08-21 | Microchannel aluminum flat tube extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520638388.8U CN204892585U (en) | 2015-08-21 | 2015-08-21 | Microchannel aluminum flat tube extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204892585U true CN204892585U (en) | 2015-12-23 |
Family
ID=54914799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520638388.8U Active CN204892585U (en) | 2015-08-21 | 2015-08-21 | Microchannel aluminum flat tube extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204892585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618504A (en) * | 2016-03-30 | 2016-06-01 | 扬州瑞斯乐复合金属材料有限公司 | Micro-channel aluminum flat tube extrusion die |
-
2015
- 2015-08-21 CN CN201520638388.8U patent/CN204892585U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618504A (en) * | 2016-03-30 | 2016-06-01 | 扬州瑞斯乐复合金属材料有限公司 | Micro-channel aluminum flat tube extrusion die |
| CN105618504B (en) * | 2016-03-30 | 2018-02-23 | 扬州瑞斯乐复合金属材料有限公司 | A kind of microchannel aluminium flat conduit extrusion die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |