CN103801579A - Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold - Google Patents
Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold Download PDFInfo
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- CN103801579A CN103801579A CN201410054446.2A CN201410054446A CN103801579A CN 103801579 A CN103801579 A CN 103801579A CN 201410054446 A CN201410054446 A CN 201410054446A CN 103801579 A CN103801579 A CN 103801579A
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Abstract
The invention relates to a method for extruding an extra-large cantilever radiator type section bar by virtue of a sectionalized composite mold and belongs to the fields of mold techniques and section bar machining. The method comprises the steps of extruding an aluminum alloy blank into a mold formed by an upper mold and a lower mold after heating the aluminum alloy blank. The method is characterized in that part of a cantilever is formed in the lower mold, and the other part of the cantilever is formed in the upper mold. According to the method, part of the cantilever is firstly formed in the upper mold through the heated aluminum alloy blank, then the other part of the cantilever is formed in the lower mold, and the continuous long cantilever can be formed behind the lower mold in a continuous extruding manner; the problems that the cantilever part of the mold is ruptured and distorted are solved, and the continuous and stable production can be realized.
Description
Technical field
The invention belongs to Tool and Die Technology and section bar manufacture field, particularly a kind of segmentation composite die extrudes the method for super large cantilever fansink-type material.
Background technology
Being applied in of radiator is now more and more wider, has the existence of radiator in a lot of fields, and the method that is used for producing shaped material of radiator is also varied, and comparatively speaking, the method for extruding is the most practical.Can produce in batches for the extruding of general radiator at present.But still there is certain difficulty for the radiator with super large cantilever, subject matter is that existing shaping is all to be realized by counterdie, the stressed complexity of mould bracketed part in forming process, very easily fracture and distortion, cause the initial failure of mould, thereby make section bar have the defect that can not process super large cantilever fansink-type material.
Summary of the invention
Technical problem to be solved by this invention is: will provide a kind of segmentation compound die prodigiosin stably to extrude the method for super large cantilever fansink-type material.
The present invention will aluminum alloy blank clamp-ons in the mould being made up of upper die and lower die after heating, it is characterized in that the part of cantilever for cantilever is at lower contour forming,, another part of cantilever is at upper contour forming.
The first a part of cantilever that is shaped in patrix of aluminum alloy blank after heating, and then another part cantilever that is shaped in counterdie, by continuous extruded, just can form at the rear of counterdie continuous microscler cantilever.The present invention is divided into two the overlength cantilever that belongs to lower contour forming originally: a part of at lower contour forming, i.e. and the bracketed part of counterdie (2.2), another part of cantilever is at upper contour forming, and the form of above model core (1.2) is for it.The method of molded component segment processing is solved to the problem of the fracture of mould bracketed part and distortion, can continuous, the stable production of reality.
Beneficial effect of the present invention is: in extrusion process, owing to correspondingly having shortened the length of mould bracketed part, can break through original restriction for heat radiation rib height, meanwhile the overlength cantilever part of mould is divided into two, can improve the non-deformability of mould cantilever and core, improve stability, can improve in process of production surface quality and the dimensional accuracy of product.
Patrix of the present invention is distributed with tap hole, core, shunting bridge, has drainage trough in the front end both sides of core, and the front end face of core is provided with the row's groove being shaped for cantilever root; Counterdie is provided with row's groove and an empty cutter of seam chamber, cantilevered distal end shaping; After patrix and counterdie matched moulds, each groove of patrix core and the corresponding continued access one by one of each groove of counterdie.
Due to each groove of patrix core and the corresponding continued access one by one of each groove of counterdie, so can make the cantilever extruding out form segmentation continuously and not.
The present invention is also provided with the L shaped groove face of depression backward at the front end of the each groove of counterdie, and after patrix and counterdie matched moulds, the free end of core is positioned at described L shaped groove face.L shaped groove face plays a holder and holds up effect there is the core of strain in extrusion process, and its both work band in forming process is remained at grade.
Between the upper surface of the free-ended lower surface of described core and the L shaped groove face of counterdie, there is certain gap.To alleviate the pressure after core distortion, counterdie bracketed part being produced in extrusion process, avoid counterdie cantilever broke to press and collapse.
Accompanying drawing explanation
Fig. 1 is the schematic top plan view of fansink-type material of the present invention.
Fig. 2 is the partial sectional view at the A place of Fig. 1.
Fig. 3 is the schematic top plan view of part of the upper die.
Fig. 4 is that the B-B of Fig. 3 cuts open and shows view.
Fig. 5 be Fig. 4 C place to view.
Fig. 6 is the schematic top plan view of counterdie.
Fig. 7 is D-D cutaway view in Fig. 6.
Fig. 8 is the partial sectional view at the E place of Fig. 7.
Fig. 9 is the cutaway view after upper die and lower die matched moulds.
Figure 10 is the partial enlarged drawing at the F place of Fig. 9.
The specific embodiment
One, mould is prepared:
Fansink-type material of the present invention as shown in Figure 1, entirety is rendered as C font, middle with a lot of heat radiation ribs, belong to super large cantilever radiator class part, in order to increase area of dissipation, accelerate radiating rate, this part can be at the middle rear end of cantilever waveform curved surface as shown in Figure 2.The structural representation that Fig. 3,4,5 is part of the upper die; The structural representation that Fig. 6,7,8 is part of the lower die, whole secondary mould is mainly made up of upper die and lower die two parts, and assembling schematic diagram is as shown in Fig. 9,10.
Patrix distributing in strip core 1.2 both sides tap hole 1.1 and shunting bridge 1.3, have drainage trough 1.4 in the both sides of core 1.2 front ends; On the front end face 1.5 of core 1.2, be provided with the row's groove 1.6 being shaped for cantilever root.
Counterdie is provided with row's groove 2.2, the empty cutter 2.3 of seam chamber 2.1, cantilevered distal end shaping.Be provided with the L shaped groove face 2.4 of depression backward at the front end of each groove 2.2 of counterdie, after patrix and counterdie matched moulds, the free end of core 1.2 is positioned at L shaped groove face 2.4, and has certain gap 2.6 between the free-ended lower surface 1.5 of core 1.2 and the upper surface 2.5 of the L shaped groove face 2.4 of counterdie.Each groove 1.6 of core 1.2 and the corresponding continued access one by one of each groove 2.2 of counterdie.
Two, production technology:
Adopt power frequency heating furnace that aluminum alloy blank is heated to 490 ℃, adopt 3600T horizontal extruder to push, aluminum alloy blank after heating is clamp-oned from patrix, form continuous section bar from the rear end of counterdie, wherein mold temperature is 470 ℃, recipient temperature is 450 ℃, and extrusion speed is 3mm/s.
The compound problem that the method for molded component segment processing is solved to the fracture of mould bracketed part and distortion that adopts of the so-called segmentation of the present invention.
So-called molded component segment processing is divided into two by the overlength cantilever that originally belongs to counterdie: a part is stayed counterdie, be row's groove 2.2 of the cantilevered distal end shaping of counterdie, row's groove 1.6 that another part is shaped with the cantilever root of the front end face of the core 1.2 of patrix forms.The method can solve the problem of mould bracketed part premature failure and distortion in extrusion process well, can extend preferably the service life of mould.The present invention adopts segmentation composite die to prepare the method for super large cantilever radiator class part, is particularly suitable for extruding super large cantilever radiator class part.
Claims (4)
1. a segmentation composite die extruding method for super large cantilever fansink-type material, by clamp-oning in the mould being made up of upper die and lower die after aluminum alloy blank heating, is characterized in that: a part for cantilever is at lower contour forming, and another part of cantilever is at upper contour forming.
2. the segmentation composite die extruding method of super large cantilever fansink-type material according to claim 1, it is characterized in that: described patrix is distributed with tap hole, core, shunting bridge, has drainage trough in the front end both sides of core, the front end face of core is provided with the row's groove being shaped for cantilever root; Counterdie is provided with row's groove and an empty cutter of seam chamber, cantilevered distal end shaping; After patrix and counterdie matched moulds, each groove of patrix core and the corresponding continued access one by one of each groove of counterdie.
3. the segmentation composite die extruding method of super large cantilever fansink-type material according to claim 1, it is characterized in that: be provided with the L shaped groove face of depression backward at the front end of the each groove of counterdie, after patrix and counterdie matched moulds, the free end of core is positioned at described L shaped groove face.
4. the segmentation composite die extruding method of super large cantilever fansink-type material according to claim 3, is characterized in that: between the free-ended lower surface of described core and the upper surface of the L shaped groove face of counterdie, leave gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054446.2A CN103801579A (en) | 2014-02-18 | 2014-02-18 | Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410054446.2A CN103801579A (en) | 2014-02-18 | 2014-02-18 | Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold |
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| CN103801579A true CN103801579A (en) | 2014-05-21 |
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| CN201410054446.2A Pending CN103801579A (en) | 2014-02-18 | 2014-02-18 | Method for extruding extra-large cantilever radiator type section bar by virtue of sectionalized composite mold |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014607A (en) * | 2014-05-22 | 2014-09-03 | 江苏大学 | Method and mold for continuously and gradually extruding high-rib profile |
| CN104602491A (en) * | 2015-01-19 | 2015-05-06 | 太仓市兴港金属材料有限公司 | Sectional material radiator |
| CN104602493A (en) * | 2015-01-19 | 2015-05-06 | 太仓市兴港金属材料有限公司 | Dense-tooth profile radiator |
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| CN2119278U (en) * | 1991-08-08 | 1992-10-21 | 西南铝加工厂 | Lap jointed plane divergent combined die |
| US6134936A (en) * | 1998-09-07 | 2000-10-24 | Hoi Po Metal Manufactory Co., Ltd | Mold for heat sink |
| CN101081411A (en) * | 2007-07-03 | 2007-12-05 | 江阴市江顺模具有限公司 | High cantalever ratio radiator aluminium section bar hanging bridge mosaictype extrusion die |
| CN201500688U (en) * | 2009-09-25 | 2010-06-09 | 刘跃堂 | Extruding die for overlong tooth height aluminum section of radiator |
| JP2011218413A (en) * | 2010-04-09 | 2011-11-04 | Nikkeikin Aluminium Core Technology Co Ltd | Extrusion die |
| CN102397903A (en) * | 2010-09-09 | 2012-04-04 | 无锡鸿声铝业有限公司 | Process for producing section material of radiator |
| CN203044866U (en) * | 2012-12-21 | 2013-07-10 | 西南铝业（集团）有限责任公司 | Lap joint mould |
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Patent Citations (7)
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| CN2119278U (en) * | 1991-08-08 | 1992-10-21 | 西南铝加工厂 | Lap jointed plane divergent combined die |
| US6134936A (en) * | 1998-09-07 | 2000-10-24 | Hoi Po Metal Manufactory Co., Ltd | Mold for heat sink |
| CN101081411A (en) * | 2007-07-03 | 2007-12-05 | 江阴市江顺模具有限公司 | High cantalever ratio radiator aluminium section bar hanging bridge mosaictype extrusion die |
| CN201500688U (en) * | 2009-09-25 | 2010-06-09 | 刘跃堂 | Extruding die for overlong tooth height aluminum section of radiator |
| JP2011218413A (en) * | 2010-04-09 | 2011-11-04 | Nikkeikin Aluminium Core Technology Co Ltd | Extrusion die |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104014607A (en) * | 2014-05-22 | 2014-09-03 | 江苏大学 | Method and mold for continuously and gradually extruding high-rib profile |
| CN104014607B (en) * | 2014-05-22 | 2016-03-02 | 江苏大学 | Continuous gradation extrudes method and the mould of high muscle class section bar |
| CN104602491A (en) * | 2015-01-19 | 2015-05-06 | 太仓市兴港金属材料有限公司 | Sectional material radiator |
| CN104602493A (en) * | 2015-01-19 | 2015-05-06 | 太仓市兴港金属材料有限公司 | Dense-tooth profile radiator |
| CN104602493B (en) * | 2015-01-19 | 2017-06-13 | 太仓市兴港金属材料有限公司 | A kind of close tooth Section Bar Heat Sinks |
| CN104602491B (en) * | 2015-01-19 | 2018-05-15 | 太仓市兴港金属材料有限公司 | A kind of Section Bar Heat Sinks |
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Application publication date: 20140521 |