CN104801561A - Extrusion die - Google Patents
Extrusion die Download PDFInfo
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- CN104801561A CN104801561A CN201510191067.2A CN201510191067A CN104801561A CN 104801561 A CN104801561 A CN 104801561A CN 201510191067 A CN201510191067 A CN 201510191067A CN 104801561 A CN104801561 A CN 104801561A
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- Prior art keywords
- die
- cushion
- air slot
- air
- nib
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
The invention provides an extrusion die applied to production and forming of profiles. The extrusion die comprises a die surface and a die cushion, wherein the die surface is provided with a die working zone used for profile forming; the die cushion comprises a main body part and die holes; the die holes are through holes penetrating the main body part; the die cushion is also provided with gas guide slots and a gas inlet hole; the gas inlet hole penetrates the main body part; the gas guide slots are grooves formed in the surface of the main body part, and the gas inlet hole and the die holes are communicated through the gas guide slots; the die surface and the die cushion are assembled and fastened in a surface fit manner, so that the gas guide slots form gas guide channels in the extrusion die; an inert gas enters from the gas inlet hole of the die cushion and flows into the die holes through the gas guide channels. The extrusion die can provide protection of the inert gas to avoid alumina particles generated by oxidation reaction of profile surfaces.
Description
Technical field
The present invention relates to a kind of extrusion die, particularly relate to a kind of extrusion die that inert gas shielding can be provided.
Background technology
In the prior art, the extrusion die of aluminium section bar is generally made up of die face and die-cushion two parts, for flat-die, as shown in Figure 1, the die-cushion of extrusion die of the prior art is generally one that to have a cross section in center be rectangular cylinder, usually assembled in the mode of surface laminating and form a whole set of extrusion die with pin fastener between die face and die-cushion.Aluminium alloy is extruded by this extrusion die just.This extrusion die applies in the production of structural aluminium and general industry aluminium widely.
But aluminium alloy extruded is a kind of mode of production of pressure forming in the environment of HTHP, and extrusion die is shaping core, directly affects size and the surface quality of section bar.Existing Tool and Die Technology is all carry out continuing to optimize and improving around profile size, and still do not carry out by optimizing Extrusion Die Design, shape and structure especially not by improving the die-cushion of extrusion die improve Surface of profile matter quantifier elimination.
Specifically, generally, extrusion die need be heated to about 480 degree and just start extruding, and aluminium alloy is at high temperature shaping by die working length.In the process, metallic aluminium can at high temperature with oxygen generation oxidation reaction, particulate oxidation thing is produced at Surface of profile, this particulate oxidation thing have impact on the quality of section bar, especially be very serious defect for the industries such as the high advanced medical equipment of surface requirements, making this kind of section bar because have alumina particle thing cannot use.
Therefore, a kind of extrusion die avoiding alumina particle produce raw how is provided to be problem demanding prompt solution to produce section bar.
Summary of the invention
In order to overcome above-mentioned technological deficiency, the object of the present invention is to provide a kind of extrusion die that alumina particle produce can be avoided raw.
The invention discloses a kind of extrusion die, be applied to the producing shaped of section bar, comprise die face and die-cushion, described die face has the die working length for product moulding, described die-cushion comprises main part and nib, described nib is the through hole running through described main part, described die-cushion also has air slot and air admission hole, wherein, described air admission hole runs through described main part, and described air slot is the groove that is arranged on the surface of described main part and is connected with described nib by described air admission hole by described air slot; The mode that described die face and described die-cushion are fitted by surface is assembled fastening, thus makes described air slot form the air guide channel of described extrusion die inside; And inert gas enters from the air admission hole of described die-cushion and flows into nib by described air guide channel.
Preferably, described nib is arranged on the center of described main part, and its cross section is rectangle or circle.
Preferably, the main part of described die-cushion is also provided with locating hole, by described locating hole, described die face and described die-cushion is assembled fastening in the mode fitted in surface.
Preferably, the quantity of described locating hole is four, is evenly distributed in the surrounding of described main part respectively.
Preferably, described main part is cylindrical shape.
Preferably, described air slot comprises the first air slot, the second air slot and the 3rd air slot, wherein, the shape of described first air slot is a line segment and one end of the first air slot is connected with described air admission hole, and the other end is connected with described second air slot; The shape of described second gathering sill is rectangle, surrounds described nib, and a limit and described first air slot of described rectangular second gathering sill are perpendicular; The shape of described 3rd air slot is from the rectangular four edges of described second gathering sill, extend the some articles of line segments being communicated with described nib respectively respectively.
Preferably, described air slot comprises the first air slot, the second air slot and the 3rd air slot, wherein, the shape of described first air slot is a line segment and one end of the first air slot is connected with described air admission hole, and the other end is connected with described second air slot; The shape of described second gathering sill is circular, surrounds described nib; The shape of described 3rd air slot is from the periphery of the circle of described second gathering sill, extend the some articles of line segments being communicated with described nib respectively respectively.
Preferably, described inert gas is nitrogen.
Preferably, the quantity of described nib is at least two.
After have employed technique scheme, compared with prior art, there is following beneficial effect:
1. the extrusion die meeting the preferred embodiment of the present invention can provide inert gas shielding, thus avoids Surface of profile generation oxidation reaction and generate alumina particle thing.
2. the extrusion die meeting the preferred embodiment of the present invention is not only applied to the producing shaped of aluminium section bar, and the generation that also can be widely used in other shape is shaping.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the die-cushion of extrusion die in prior art.
Fig. 2 is the stereogram of the die-cushion of the extrusion die meeting the preferred embodiment of the present invention.
Fig. 3 is one of front view of the die-cushion of the extrusion die meeting the preferred embodiment of the present invention.
Fig. 4 is the front view two of the die-cushion of the extrusion die meeting the preferred embodiment of the present invention.
Fig. 5 is the front view three of the die-cushion of the extrusion die meeting the preferred embodiment of the present invention.
Fig. 6 is the schematic diagram of the extrusion die meeting the preferred embodiment of the present invention.
Reference numeral:
1: die-cushion, 11: main part, 12: nib, 13: air admission hole, 14: air slot, 15: locating hole;
2: die face, 21: die working length.
Detailed description of the invention
Advantage of the present invention is set forth further below in conjunction with accompanying drawing and specific embodiment.
As shown in Fig. 2, Fig. 3 and Fig. 6, the invention discloses a kind of extrusion die, comprise die face 2 and die-cushion 1, as shown in Figure 6, the die face 2 of this extrusion die has the die working length 21 for product moulding in heart position wherein.
As shown in Figures 2 and 3, the die-cushion 1 of this extrusion die comprises main part 11 and nib 12, nib 12 is for running through the through hole of main part 11, die-cushion 1 also has air slot 14 and air admission hole 13, wherein, air admission hole 13 runs through main part 11, and air slot 14 is for the groove that is arranged on the surface of main part 11 and be connected with nib 12 by air admission hole 13 by air slot 14.
As shown in Figure 6, the mode that die face 2 is fitted by surface with die-cushion 1 is assembled fastening, thus enables air slot 14 form the air guide channel of extrusion die inside thus make inert gas enter from the air admission hole 13 of die-cushion 1 and be flowed into nib 12 by this air guide channel.
The operation principle meeting the extrusion die of the preferred embodiment of the present invention is: as shown in Figure 6, when generating aluminium section bar by extrusion die, first extrusion die is heated to about 480 degree, then aluminium ingot is inserted and carry out extruding in the die working length 21 of die face 2 and become aluminium section bar.When aluminium section bar stretches out and enters into nib 12 from the die working length 21 of die face 2, because die face 2 and die-cushion 1 are assembled fastening by the mode of surface laminating, thus make air slot 14 form the air guide channel of extrusion die inside, inert gas enters into air slot 14 by the air admission hole 13 on die-cushion 1, flow in nib 12 by air slot 14 again, thus form a stable inert gas environment in the discharge outlet of aluminium section bar, the section bar of high temperature and the contact of oxygen are intercepted, thus avoid Surface of profile generation oxidation reaction, thus reach the effect avoiding having alumina particle produce raw on the surface of section bar.
Preferably, as described in Fig. 2 and Fig. 3 nib 12 be arranged on as described in the center of main part, its cross section is rectangle or circle.It should be noted that, the concrete shape of this nib 12 is not limited to above-mentioned rectangle or circle, can design different shapes according to the actual needs.
Preferably, as shown in Figure 3, the main part 11 of die-cushion 1 is also provided with locating hole 15, such as, namely can die face 2 and die-cushion 1 is assembled fastening in the mode fitted in surface by arranging the modes such as pin on locating hole 15.
Preferably, as shown in Figure 3, the quantity of locating hole 15 is four, is evenly distributed in the surrounding of main part 11 respectively.
Preferably, as shown in Figure 2, main part 11 is cylindrical shape.
Preferably, as as described in Fig. 2 and Fig. 3, air slot 14 comprises the first air slot, the second air slot and the 3rd air slot, wherein, the shape of the first air slot is a line segment and one end of the first air slot is connected with air admission hole 13, and the other end is connected with the second air slot; The shape of the second gathering sill is rectangle, surrounds rectangular nib 12, a limit of rectangular second gathering sill and the first air slot perpendicular; The shape of the 3rd air slot is from the rectangular four edges of the second gathering sill, extend the some articles of line segments being communicated with nib 12 respectively respectively, and such as in figs. 2 and 3, the quantity of this line segment is eight.By the preferred embodiment, by inert gas equably from surrounding's inflow nib 12 of nib 12, thus can make to be full of inert gas in nib 12, intercept the contact of high temperature section bar and oxygen completely.
Preferably, as shown in Figure 4, air slot 14 comprises the first air slot, the second air slot and the 3rd air slot, and wherein, the shape of the first air slot is a line segment and one end of the first air slot is connected with air admission hole 13, and the other end is connected with the second air slot; The shape of the second gathering sill is circular, surrounds circular nib 12; The shape of the 3rd air slot is from the periphery of the circle of the second gathering sill, extend the some articles of line segments being communicated with nib 12 respectively respectively.
Preferably, inert gas is nitrogen.
Preferably, as shown in Figure 5, the quantity of nib 12 is at least two, and is not limited to single nib 12.
Should be noted that, embodiments of the invention have preferably implementation, and not any type of restriction is done to the present invention, any person skilled in art of being familiar with may utilize the technology contents of above-mentioned announcement change or be modified to equivalent effective embodiment, in every case the content of technical solution of the present invention is not departed from, the any amendment done above embodiment according to technical spirit of the present invention or equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (9)
1. an extrusion die, is applied to the producing shaped of section bar, comprises die face and die-cushion, and described die face has the die working length for product moulding, it is characterized in that,
Described die-cushion comprises main part and nib, described nib is the through hole running through described main part, described die-cushion also has air slot and air admission hole, wherein, described air admission hole runs through described main part, and described air slot is the groove that is arranged on the surface of described main part and is connected with described nib by described air admission hole by described air slot;
The mode that described die face and described die-cushion are fitted by surface is assembled fastening, thus makes described air slot form the air guide channel of described extrusion die inside; And
Inert gas enters from the air admission hole of described die-cushion and flows into nib by described air guide channel.
2. extrusion die as claimed in claim 1, it is characterized in that, described nib is arranged on the center of described main part, and its cross section is rectangle or circle.
3. the die-cushion of extrusion die as claimed in claim 1, is characterized in that, the main part of described die-cushion is also provided with locating hole, assemble fastening by described locating hole by described die face and described die-cushion in the mode fitted in surface.
4. the die-cushion of extrusion die as claimed in claim 3, it is characterized in that, the quantity of described locating hole is four, is evenly distributed in the surrounding of described main part respectively.
5. the die-cushion of extrusion die as claimed in claim 1, it is characterized in that, described main part is cylindrical shape.
6. the die-cushion of extrusion die as claimed in claim 1, it is characterized in that, described air slot comprises the first air slot, the second air slot and the 3rd air slot, wherein, the shape of described first air slot is a line segment and one end of the first air slot is connected with described air admission hole, and the other end is connected with described second air slot; The shape of described second gathering sill is rectangle, surrounds described nib, and a limit and described first air slot of described rectangular second gathering sill are perpendicular; The shape of described 3rd air slot is from the rectangular four edges of described second gathering sill, extend the some articles of line segments being communicated with described nib respectively respectively.
7. the die-cushion of extrusion die as claimed in claim 1, it is characterized in that, described air slot comprises the first air slot, the second air slot and the 3rd air slot, wherein, the shape of described first air slot is a line segment and one end of the first air slot is connected with described air admission hole, and the other end is connected with described second air slot; The shape of described second gathering sill is circular, surrounds described nib; The shape of described 3rd air slot is from the periphery of the circle of described second gathering sill, extend the some articles of line segments being communicated with described nib respectively respectively.
8. the die-cushion of extrusion die as claimed in claim 1, it is characterized in that, described inert gas is nitrogen.
9. the die-cushion of extrusion die as claimed in claim 1, it is characterized in that, the quantity of described nib is at least two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191067.2A CN104801561A (en) | 2015-04-21 | 2015-04-21 | Extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510191067.2A CN104801561A (en) | 2015-04-21 | 2015-04-21 | Extrusion die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104801561A true CN104801561A (en) | 2015-07-29 |
Family
ID=53686998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510191067.2A Pending CN104801561A (en) | 2015-04-21 | 2015-04-21 | Extrusion die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104801561A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675951A (en) * | 2018-12-11 | 2019-04-26 | 佛山市三水凤铝铝业有限公司 | It is a kind of optimization aluminium discharging surface roughness die-cushion and its application |
| CN110180912A (en) * | 2019-06-13 | 2019-08-30 | 江苏银奕达科技股份有限公司 | It is a kind of to be discharged mold for aluminium packet wood section based on nitrogen protection |
| CN110280614A (en) * | 2019-06-13 | 2019-09-27 | 江苏银奕达科技股份有限公司 | A kind of extruding production technology that aluminum profile is discharged based on nitrogen protection |
| CN112718906A (en) * | 2020-12-21 | 2021-04-30 | 郑州明泰交通新材料有限公司 | Well pad device with cooling function |
| CN113351672A (en) * | 2021-04-21 | 2021-09-07 | 佛山市三水凤铝铝业有限公司 | Preparation method of 6-series aluminum alloy section |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991012097A1 (en) * | 1990-02-09 | 1991-08-22 | G James Australia Pty. Ltd. | Extrusion die cooling system |
| WO2002018071A1 (en) * | 2000-08-30 | 2002-03-07 | Pechiney Rhenalu | Die tooling |
| CN102069098A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Efficient cooling aluminum profile hot extrusion die structure |
| CN204052416U (en) * | 2014-08-06 | 2014-12-31 | 黄石市宏佳模具有限公司 | A kind of hollow cylinder extruding die for aluminum shaped material |
| CN204083819U (en) * | 2014-09-16 | 2015-01-07 | 深圳市华加日西林实业有限公司 | Extrusion die nitrogen supply system |
| CN204892581U (en) * | 2015-04-21 | 2015-12-23 | 苏州铭德铝业有限公司 | Extrusion die |
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2015
- 2015-04-21 CN CN201510191067.2A patent/CN104801561A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO1991012097A1 (en) * | 1990-02-09 | 1991-08-22 | G James Australia Pty. Ltd. | Extrusion die cooling system |
| WO2002018071A1 (en) * | 2000-08-30 | 2002-03-07 | Pechiney Rhenalu | Die tooling |
| CN102069098A (en) * | 2009-11-24 | 2011-05-25 | 上海瑞斯乐门窗有限公司 | Efficient cooling aluminum profile hot extrusion die structure |
| CN204052416U (en) * | 2014-08-06 | 2014-12-31 | 黄石市宏佳模具有限公司 | A kind of hollow cylinder extruding die for aluminum shaped material |
| CN204083819U (en) * | 2014-09-16 | 2015-01-07 | 深圳市华加日西林实业有限公司 | Extrusion die nitrogen supply system |
| CN204892581U (en) * | 2015-04-21 | 2015-12-23 | 苏州铭德铝业有限公司 | Extrusion die |
Non-Patent Citations (1)
| Title |
|---|
| 王福顺: ""铝合金挤压模的氮冷"", 《轻合金加工技术》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109675951A (en) * | 2018-12-11 | 2019-04-26 | 佛山市三水凤铝铝业有限公司 | It is a kind of optimization aluminium discharging surface roughness die-cushion and its application |
| CN110180912A (en) * | 2019-06-13 | 2019-08-30 | 江苏银奕达科技股份有限公司 | It is a kind of to be discharged mold for aluminium packet wood section based on nitrogen protection |
| CN110280614A (en) * | 2019-06-13 | 2019-09-27 | 江苏银奕达科技股份有限公司 | A kind of extruding production technology that aluminum profile is discharged based on nitrogen protection |
| CN112718906A (en) * | 2020-12-21 | 2021-04-30 | 郑州明泰交通新材料有限公司 | Well pad device with cooling function |
| CN113351672A (en) * | 2021-04-21 | 2021-09-07 | 佛山市三水凤铝铝业有限公司 | Preparation method of 6-series aluminum alloy section |
| CN113351672B (en) * | 2021-04-21 | 2022-04-08 | 佛山市三水凤铝铝业有限公司 | Preparation method of 6-series aluminum alloy section |
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Application publication date: 20150729 |
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| RJ01 | Rejection of invention patent application after publication |