CN108555051B - Splitter plate, aluminum alloy pipe extrusion die and forming method thereof - Google Patents
Splitter plate, aluminum alloy pipe extrusion die and forming method thereof Download PDFInfo
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- CN108555051B CN108555051B CN201810019066.3A CN201810019066A CN108555051B CN 108555051 B CN108555051 B CN 108555051B CN 201810019066 A CN201810019066 A CN 201810019066A CN 108555051 B CN108555051 B CN 108555051B
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- 238000001125 extrusion Methods 0.000 title claims abstract description 50
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 22
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 2
- 229910052751 metal Inorganic materials 0.000 abstract description 19
- 239000002184 metal Substances 0.000 abstract description 19
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention relates to a splitter plate, an aluminum alloy pipe extrusion die and a forming method thereof. According to the flow distribution plate, the aluminum alloy pipe extrusion die and the forming method thereof, the aluminum material is pre-distributed for a plurality of times by adopting the flow distribution plate, on one hand, the flow distribution ratio can be sequentially larger and a certain gradient is formed, so that the pressure born by the flow distribution bridge can also form a certain gradient, the peak value of the maximum extrusion force born by the flow distribution bridge does not appear at the same time, and the formation of the maximum extrusion force peak value is avoided; on the other hand, the feeding mode of step-type shunt can effectively reduce the rigid area of the central part of the die, thereby reducing the deformation resistance of metal in the extrusion process, and greatly reducing the bearing force of the shunt bridge and prolonging the service life of the die.
Description
Technical Field
The invention relates to the field of metal material processing equipment, in particular to a splitter plate, an aluminum alloy pipe extrusion die and a forming method thereof.
Background
With the development of modern technology, research and development of aluminum alloy materials have been greatly advanced, so that the aluminum alloy materials are widely applied, and particularly, aluminum alloy extrusion profiles are applied to various industries and fields as structural materials. Among them, the large-scale aluminum alloy flat tube extrusion profile is very common in civil and industrial applications. Fig. 1 is a cross-sectional view of a typical large flat tube aluminum profile 20.
However, the die core size of the die is larger due to the large cavity area of the profile, the bearing area of the center of the die is larger in the extrusion process, the generated extrusion rigidity area is larger, the generated deformation resistance and the generated metal friction force are both large, the die is severely deformed under the working environment conditions of high temperature, high pressure, high friction resistance and alternating stress, and the die shunt bridge is easily broken, so that the die is early failed, and the service life of the die is reduced. On the other hand, the wall thickness of such profiles is generally relatively thin, resulting in an increased degree of deformation during extrusion, a higher extrusion force during extrusion, and an increased pressure to which the die is subjected, thereby reducing the strength of the die. How to improve the service life of the die of the large flat tube section bar is always a difficult problem for enterprises.
The traditional extrusion die consists of an upper die and a lower die. Therefore, the thickness of the upper die must reach 160mm or more, which brings great difficulty to processing, and many parts are not processed in place, are not smooth or are not smooth in transition, so that stress concentration is generated in the heat treatment process, and the strength of the die is reduced. Meanwhile, the upper die has large size, the hardenability during heat treatment is reduced, and the strength of the die is also adversely affected.
Disclosure of Invention
Based on the above, it is necessary to provide a splitter plate, an aluminum alloy pipe extrusion die and a molding method thereof, so as to solve the problems of lower upper die strength and larger thickness of the conventional aluminum alloy pipe extrusion die.
The utility model provides a flow distribution plate for set up the front end at aluminum alloy tubular product extrusion die, aluminum alloy tubular product extrusion die includes mould and lower mould, it is provided with mould reposition of redundant personnel passageway to go up the mould, go up mould reposition of redundant personnel passageway and be used for carrying out the reposition of redundant personnel to the aluminum product, go up the mould with cooperate between the lower mould and form the die cavity, the flow distribution plate is provided with multistage reposition of redundant personnel passageway from the feed end to the discharge end, multistage reposition of redundant personnel passageway is used for shunting in advance many times to the aluminum product, the number of the last level reposition of redundant personnel passageway in the multistage reposition of redundant personnel passageway is more than the number of preceding level reposition of redundant personnel passageway.
In one embodiment, the diverter plate is further provided with a pre-deformation channel, the pre-deformation channel being provided before the multi-stage diverter channel.
In one embodiment, the flow dividing plate comprises a pre-deformation channel, a primary flow dividing channel and a secondary flow dividing channel which are sequentially arranged from a feeding end to a discharging end, and the ratio of the lengths of the pre-deformation channel, the primary flow dividing channel and the secondary flow dividing channel is 2-4: 5 to 7:6 to 8.
In one embodiment, a corresponding number of split-flow bridges are formed among the multiple split-flow channels of each stage, and the feeding end and the discharging end of each split-flow bridge are designed in a chamfering manner.
The utility model provides an aluminum alloy tubular product extrusion die, includes mould, lower mould and the flow distribution plate, the discharge end of flow distribution plate can with the feed end of going up the mould combines, it is provided with the mould reposition of redundant personnel passageway to go up the mould, it is used for the reposition of redundant personnel to go up the mould reposition of redundant personnel passageway, go up the mould with cooperate between the lower mould and form the die cavity, go up the number of mould reposition of redundant personnel passageway more than the number of last stage reposition of redundant personnel passageway of flow distribution plate.
In one embodiment, the splitter plate is provided with two primary splitter channels and four secondary splitter channels, and the number of the upper die splitter channels is six.
In one embodiment, the center axes of the aluminum alloy pipe extrusion die are symmetrically distributed between each stage of the flow dividing channels of the flow dividing plate and between the upper die flow dividing channels.
In one embodiment, the discharge end of the upper die is provided with a convex upper die core, the position of the lower die corresponding to the upper die core is provided with a lower die hole, the lower die hole comprises a welding section, a forming section and a discharge section which are sequentially arranged along the discharge direction, the opening size of the welding section is larger than that of the forming section, the opening size of the discharge end is larger than that of the forming section, and the upper die core extends into the welding section and the forming section to form a welding chamber and a forming gap respectively.
In one embodiment, a stress gap is arranged between the splitter plate and the upper die, and the width of the stress gap is 1/3-1/2 of the width of the forming gap.
The aluminum alloy pipe extrusion die is used for pre-splitting the aluminum material for a plurality of times, then splitting the aluminum material by the upper die, and finally extruding the aluminum material from the forming cavity.
Compared with the prior art, the invention has the following beneficial effects:
according to the flow distribution plate, the aluminum alloy pipe extrusion die and the forming method thereof, the aluminum material is pre-distributed for a plurality of times by adopting the flow distribution plate, on one hand, the flow distribution ratio can be sequentially larger and a certain gradient is formed, so that the pressure born by the flow distribution bridge can also form a certain gradient, the peak value of the maximum extrusion force born by the flow distribution bridge does not appear at the same time, and the formation of the maximum extrusion force peak value is avoided; on the other hand, the feeding mode of step-type shunt can effectively reduce the rigid area of the central part of the die, thereby reducing the deformation resistance of metal in the extrusion process, and greatly reducing the bearing force of the shunt bridge and prolonging the service life of the die. In addition, the die design can effectively reduce the requirement on the thickness of the upper die, thereby reducing the processing difficulty of the upper die, improving the hardenability in heat treatment and being beneficial to improving the strength of the die.
Drawings
FIG. 1 is a cross-sectional view of a typical large flat tube aluminum profile;
FIG. 2 is a schematic view of a flow distribution plate according to an embodiment;
FIG. 3 is a cross-sectional view of (a) a pre-deformation channel, (b) a primary shunt channel, and (c) a secondary shunt channel of an embodiment;
FIG. 4 is a cross-sectional view of an aluminum alloy pipe extrusion die of an embodiment;
FIG. 5 is a schematic diagram of the structure of an upper mold according to an embodiment;
FIG. 6 is a cross-sectional view of an upper die of an embodiment;
FIG. 7 is a schematic diagram of a distribution of flow-blocking strips according to an embodiment.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 2 and 3, in the splitter plate 100 of an embodiment, a multi-stage splitting channel is disposed from a feeding end to a discharging end of the splitter plate 100, and the multi-stage splitting channel is used for pre-splitting the aluminum material multiple times. The number of the next-stage shunting channels in the multi-stage shunting channels is greater than that of the previous-stage shunting channels.
The above-mentioned flow dividing plate 100 is configured to be disposed at a front end of an aluminum alloy pipe extrusion die, where the aluminum alloy pipe extrusion die includes an upper die and a lower die, the upper die is provided with an upper die flow dividing channel, and the upper die flow dividing channel is configured to divide aluminum material, and a forming cavity is formed by cooperation between the upper die and the lower die.
In an alternative embodiment, the first stage bypass channel 120 and the second stage bypass channel 130 are provided in sequence from the feed end to the discharge end of the manifold 100. Alternatively, the multi-stage flow dividing passages in the flow dividing plate 100 are not limited to the primary flow dividing passage 120 and the secondary flow dividing passage 130, but a pre-deformation passage 110 may be provided before the primary flow dividing passage 120, and a tertiary flow dividing passage, a quaternary flow dividing passage, and the like may be provided after the secondary flow dividing passage 130. In a specific embodiment, the diverter plate 100 includes a pre-deformation channel 110, a primary diverter channel 120, and a secondary diverter channel 130 disposed in sequence from the feed end to the discharge end.
Further, in an alternative embodiment, the ratio of the lengths of the pre-deformation channel 110, the primary shunt channel 120, and the secondary shunt channel 130 is 2 to 4:5 to 7:6 to 8. In one particular embodiment, the ratio of the lengths of the pre-deformation channel 110, the primary shunt channel 120, and the secondary shunt channel 130 is 3:6:7.
A corresponding number of shunt bridges are formed between the plurality of shunt channels of each stage in the shunt plate 100. Specifically, primary shunt bridges 140 are formed between primary shunt channels 120, secondary shunt bridges 150 are formed between secondary shunt channels 130, and so on. In an alternative embodiment, the feed end and the discharge end of each level of the bridge in the manifold 100 are chamfered, so that the flow resistance of the metal is reduced, the tensile stress of the die is reduced, and the breakage of the bridge is delayed, thereby improving the strength of the die.
In an alternative embodiment, a first process orifice 160 is provided at the discharge end of the manifold 100 and at the junction of the last stage of the manifold to increase the hardenability of the manifold 100 during heat treatment and thus improve mechanical properties and strength. In a specific embodiment, the first process orifice 160 has a diameter of 30mm and a depth of 60mm.
Further, referring to fig. 4 to 7, the present embodiment further provides an aluminum alloy pipe extrusion die 10, which includes a splitter plate 100, an upper die 200 and a lower die 300, wherein a discharge end of the splitter plate 100 can be combined with a feed end of the upper die 200, and the splitter plate 100, the upper die 200 and the lower die 300 are sequentially stacked and assembled into a whole. When the aluminum alloy pipe extrusion die 10 is used, aluminum materials are split by the splitter plate 100 and the upper die 200 in sequence, and finally are extruded and molded by the lower die 300. The flow dividing plate 100 is disposed at a feed end of the upper die 200, and the upper die 200 is provided with upper die flow dividing passages 210 for further dividing the aluminum material pre-divided by the flow dividing plate 100, and the number of the upper die flow dividing passages 210 is greater than the number of the last stage flow dividing passages of the flow dividing plate 100.
In an alternative embodiment, the splitter plate 100, the upper die 200, and the lower die 300 are equal diameter circular plate shaped dies for ease of mating installation. In one particular embodiment, the end faces of the splitter plate 100, upper die 200, and lower die 300 are 480mm in diameter and 160mm, 140mm, and 120mm in height, respectively.
Upper die split bridges 220 are formed between the upper die split channels 210. In an alternative embodiment, both the feed end and the discharge end of upper die split bridge 220 are chamfer designs.
In an alternative embodiment, the distribution of the aluminum alloy pipe extrusion die 10 is centered between each stage of the distribution channels of the distribution plate 100 and between the upper die distribution channels 210.
In an alternative embodiment, the number of secondary flow channels 130 in the manifold 100 is twice the number of primary flow channels 120. It is understood that the number of primary distribution channels 120 is 2 at a minimum. In a specific embodiment, the splitter plate 100 is provided with 1 pre-deformation channel 110 and 2 primary split channels 120,4 secondary split channels 130 in sequence, so that the aluminum material enters the split channels as one metal after being pre-sheared, and is split into two metal strands and then into four metal strands. Further, the number of upper die split channels 210 is preferably 6, which means that six strands of metal will be formed after four strands of metal from the splitter plate 100 enter the upper die 200. The two strands of metal of the splitter plate 100 become three strands of metal of the upper die 200 respectively, and the process of re-welding and fusing the metal and local re-splitting can occur, so that the advantage is that the metal supply of the part of the die hole, which is difficult to form, can be ensured to be sufficient, and the metal flow rates of all parts are easy to be consistent, thereby ensuring the precision requirement of the profile. Meanwhile, the metal is changed from four strands to six strands, so that the metal distribution is more reasonable due to the similarity between the metal and the shape of the profile after the metal distribution. In other embodiments, the number of upper die split channels 210 may be 7, 8, etc.
In an alternative embodiment, the discharge end of the upper mold 200 is provided with a protruding upper mold core 230, the position of the lower mold 300 corresponding to the upper mold core 230 is provided with a lower mold hole 310, the lower mold hole 310 comprises a welding section, a forming section and a discharge section which are sequentially arranged along the discharge direction, the opening size of the welding section is larger than that of the forming section, the opening size of the discharge end is larger than that of the forming section, the upper mold core 230 extends into the welding section and the forming section to form a welding chamber 312 and a forming gap 314 respectively, and the non-extending portion of the upper mold core 230 forms a discharge hole 316. Further, in an alternative embodiment, the upper mold core 230 is provided with a second process hole 240 to improve the hardenability of the upper mold 200 during the heat treatment, thereby improving mechanical properties and strength. In a specific embodiment, the second process hole 240 has a diameter of 30mm and a depth of 60mm.
In an alternative embodiment, a stress gap 170 is provided between the manifold plate 100 and the upper die 200, and the width of the stress gap 170 is 1/3 to 1/2 of the width of the forming gap 314. In this way, the splitter plate 100 bears most of the extrusion force, and meanwhile, the deflection or elastic deformation generated in the central part of the splitter plate 100 is transmitted to the upper die 200 as little as possible, so that the bearing force of the central part of the upper die 200 can be reduced, the elastic deformation of the upper die 200 in the extrusion process is reduced, and the uniformity of the wall thickness of the profile is maintained. In one particular embodiment, the stress gap 170 is disposed at the discharge end of the manifold plate 100 and has a width that is 1/3 of the width of the forming gap 314.
Alternatively, the forming gap 314 may be, but is not limited to, circular, polygonal, irregular, etc., depending on the different cross-sectional shapes of the extruded tubing. In an alternative embodiment, a rectangular shaped molding gap 314 is formed between the upper mold core 230 and the lower mold aperture 310. In this embodiment, the flow-blocking strips 320 are disposed in the middle of the length and width of the welding chamber 312 near the forming gap 314, and the flow-blocking strips 320 are disposed near the forming gap 314, and in a specific embodiment, the height and width of the flow-blocking strips 320 are 6mm.
In an alternative embodiment, the assembly mode between the splitter plate 100 and the upper die 200 is that the splitter plate 100 and the upper die 200 are provided with mounting holes corresponding to each other, the splitter plate 100 is fixed on the upper die 200 by fastening screws, and further, positioning pins and positioning grooves corresponding to each other are respectively provided between the splitter plate 100 and the upper die 200. Similarly, the assembly between the upper die 200 and the lower die 300 may be performed as described above.
Further, the present embodiment provides a method for forming an aluminum alloy pipe, in which the aluminum alloy pipe extrusion die 10 is used, the aluminum material is pre-split a plurality of times by the splitter plate 100, then further split by the upper die 200, and finally the aluminum material is extruded from the forming cavity.
According to the flow distribution plate 100, the aluminum alloy pipe extrusion die 10 and the forming method thereof, the aluminum material is pre-distributed for a plurality of times by adopting the flow distribution plate 100, on one hand, the flow distribution ratio can be sequentially larger and a certain gradient is formed, so that the pressure born by the flow distribution bridge can also form a certain gradient, the peak value of the maximum extrusion force born by the flow distribution bridge does not appear at the same time, and the formation of the maximum extrusion force peak value is avoided; on the other hand, the feeding mode of step-type shunt can effectively reduce the rigid area of the central part of the die, thereby reducing the deformation resistance of metal in the extrusion process, and greatly reducing the bearing force of the shunt bridge and prolonging the service life of the die. In addition, the die design of the invention can effectively reduce the requirement on the thickness of the upper die 200, thereby reducing the processing difficulty of the upper die 200, improving the hardenability in heat treatment and being beneficial to improving the die strength.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
1. The aluminum alloy pipe extrusion die is characterized by comprising an upper die, a lower die and a splitter plate, wherein the upper die is provided with an upper die splitting channel, the upper die splitting channel is used for splitting aluminum materials, a forming cavity is formed between the upper die and the lower die in a matched mode, the splitter plate is arranged at the front end of the aluminum alloy pipe extrusion die, a plurality of stages of splitting channels are arranged from a feeding end to a discharging end of the splitter plate, the plurality of stages of splitting channels are used for pre-splitting the aluminum materials for a plurality of times, and the number of the next stages of splitting channels in the plurality of stages of splitting channels is more than that of the previous stages of splitting channels; the discharge end of the flow dividing plate can be combined with the feed end of the upper die, and the number of the flow dividing channels of the upper die is more than that of the last stage of flow dividing channels of the flow dividing plate; the upper die core extends into the welding section and the forming section to form a welding chamber and a forming gap respectively; the welding chamber is provided with flow blocking strips at the middle positions close to the length and width of the forming gap, and the flow blocking strips are arranged close to the forming gap;
And a stress gap is arranged between the flow distribution plate and the upper die, and the width of the stress gap is 1/3-1/2 of the width of the forming gap.
2. The aluminum alloy pipe extrusion die of claim 1, wherein the manifold plate is further provided with a pre-deformation channel, the pre-deformation channel being disposed before the multi-stage manifold channel.
3. The aluminum alloy pipe extrusion die of claim 2, wherein the flow dividing plate comprises a pre-deformation channel, a primary flow dividing channel and a secondary flow dividing channel which are sequentially arranged from a feed end to a discharge end, and the ratio of the lengths of the pre-deformation channel, the primary flow dividing channel and the secondary flow dividing channel is 2-4: 5-7: 6-8.
4. An aluminum alloy pipe extrusion die as claimed in any one of claims 1 to 3, wherein a corresponding number of split bridges are formed among the plurality of split channels of each stage, and the feed end and the discharge end of each split bridge are designed by chamfering.
5. An aluminum alloy pipe extrusion die as recited in claim 3 wherein said flow divider plate is provided with two of said primary flow divider channels and four of said secondary flow divider channels, said upper die flow divider channels being six in number.
6. The aluminum alloy pipe extrusion die as recited in claim 1, wherein each of said upper die split passages and each of said lower die split passages of said splitter plate are arranged in a central symmetry with respect to a central axis of said aluminum alloy pipe extrusion die.
7. An aluminium alloy pipe extrusion die according to any one of claims 1 to 3, wherein the weld section has an opening size greater than the opening size of the forming section and the discharge end has an opening size greater than the opening size of the forming section.
8. A method for forming an aluminum alloy pipe, characterized in that the aluminum alloy pipe extrusion die according to any one of claims 1 to 7 is used, the aluminum material is pre-split for a plurality of times through the splitter plate, the aluminum material is further split through the upper die, and finally the aluminum material is extruded from the forming cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019066.3A CN108555051B (en) | 2018-01-09 | 2018-01-09 | Splitter plate, aluminum alloy pipe extrusion die and forming method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810019066.3A CN108555051B (en) | 2018-01-09 | 2018-01-09 | Splitter plate, aluminum alloy pipe extrusion die and forming method thereof |
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| Publication Number | Publication Date |
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| CN108555051A CN108555051A (en) | 2018-09-21 |
| CN108555051B true CN108555051B (en) | 2024-04-30 |
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| CN101837385A (en) * | 2010-04-10 | 2010-09-22 | 江阴市江顺模具有限公司 | Large-sized die with stepped diversion, multi-stage diffluence and complicated section |
| CN103599956A (en) * | 2013-09-29 | 2014-02-26 | 东莞市东联铝业有限公司 | Multistage-welding-chamber extrusion mould used for producing aluminium sections and production technology of the aluminium sections |
| CN204135099U (en) * | 2014-10-31 | 2015-02-04 | 广州科技职业技术学院 | The large square tube extrusion die of aluminium section bar thin-walled |
| CN204307962U (en) * | 2014-10-31 | 2015-05-06 | 广州科技职业技术学院 | Aluminium alloy A type rice font cylinder barrel extrusion die |
| CN207787309U (en) * | 2018-01-09 | 2018-08-31 | 广东和胜工业铝材股份有限公司 | Flow distribution plate aluminium and aluminium alloy pipes extrusion die |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003260512A (en) * | 2001-04-06 | 2003-09-16 | Furukawa Electric Co Ltd:The | Die for extruding aluminum or aluminum alloy |
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2018
- 2018-01-09 CN CN201810019066.3A patent/CN108555051B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101837385A (en) * | 2010-04-10 | 2010-09-22 | 江阴市江顺模具有限公司 | Large-sized die with stepped diversion, multi-stage diffluence and complicated section |
| CN103599956A (en) * | 2013-09-29 | 2014-02-26 | 东莞市东联铝业有限公司 | Multistage-welding-chamber extrusion mould used for producing aluminium sections and production technology of the aluminium sections |
| CN204135099U (en) * | 2014-10-31 | 2015-02-04 | 广州科技职业技术学院 | The large square tube extrusion die of aluminium section bar thin-walled |
| CN204307962U (en) * | 2014-10-31 | 2015-05-06 | 广州科技职业技术学院 | Aluminium alloy A type rice font cylinder barrel extrusion die |
| CN207787309U (en) * | 2018-01-09 | 2018-08-31 | 广东和胜工业铝材股份有限公司 | Flow distribution plate aluminium and aluminium alloy pipes extrusion die |
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| CN108555051A (en) | 2018-09-21 |
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