CN204892581U - Extrusion die - Google Patents

Extrusion die Download PDF

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Publication number
CN204892581U
CN204892581U CN201520243822.2U CN201520243822U CN204892581U CN 204892581 U CN204892581 U CN 204892581U CN 201520243822 U CN201520243822 U CN 201520243822U CN 204892581 U CN204892581 U CN 204892581U
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China
Prior art keywords
die
air slot
air
nib
main
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CN201520243822.2U
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Chinese (zh)
Inventor
丁一洪
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SUZHOU MINGDE ALUMINUM Co Ltd
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SUZHOU MINGDE ALUMINUM Co Ltd
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Priority to CN201520243822.2U priority Critical patent/CN204892581U/en
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Abstract

The utility model provides an extrusion die is applied to the production shaping of section bar, including die surface and die crushion, the die surface has the fashioned mould work tape of the section bar of being used for, the die crushion includes main part and nib, the nib is for running through the through -hole of main part, the die crushion still has air guide groove and inlet port, wherein, the inlet port runs through the main part, the air guide groove is for setting up the recess on the surface of main part is and pass through the air guide groove will the inlet port with the nib is linked together, the die surface with the die crushion fastens through the mode equipment of surface laminating, thereby makes the air guide flute profile becomes the inside air conduction channel of extrusion die, and inert gas follows the inlet port of die crushion gets into and passes through air conduction channel flows in the nib. The utility model discloses an extrusion die can provide inert gas the protection to avoid the section bar surface to take place the oxidation reaction and generate the aluminium oxide particulate matter.

Description

A kind of extrusion die
Technical field
The utility model relates to a kind of extrusion die, particularly relates to a kind of extrusion die that can provide inert gas shielding.
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.
Utility model content
In order to overcome above-mentioned technological deficiency, the purpose of this utility model is to provide a kind of extrusion die that alumina particle produce can be avoided raw.
The utility model 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 air slot is rectangle, surrounds described nib, and a limit and described first air slot of described rectangular second air slot are perpendicular; The shape of described 3rd air slot is from the rectangular four edges of described second air slot, 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 air slot is circular, surrounds described nib; The shape of described 3rd air slot is from the periphery of the circle of described second air slot, 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 utility model preferred embodiment can provide inert gas shielding, thus avoids Surface of profile generation oxidation reaction and generate alumina particle thing.
2. the extrusion die meeting the utility model preferred embodiment 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 utility model preferred embodiment.
Fig. 3 is one of front view of the die-cushion of the extrusion die meeting the utility model preferred embodiment.
Fig. 4 is the front view two of the die-cushion of the extrusion die meeting the utility model preferred embodiment.
Fig. 5 is the front view three of the die-cushion of the extrusion die meeting the utility model preferred embodiment.
Fig. 6 is the schematic diagram of the extrusion die meeting the utility model preferred embodiment.
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 utility model is set forth further below in conjunction with accompanying drawing and specific embodiment.
As shown in Fig. 2, Fig. 3 and Fig. 6, the utility model 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 utility model preferred embodiment 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 air slot is rectangle, surrounds rectangular nib 12, a limit of rectangular second air slot and the first air slot perpendicular; The shape of the 3rd air slot is from the rectangular four edges of the second air slot, 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 air slot is circular, surrounds circular nib 12; The shape of the 3rd air slot is from the periphery of the circle of the second air slot, 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, embodiment of the present utility model has preferably implementation, and not any type of restriction is done to the utility model, 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 solutions of the utility model is not departed from, the any amendment done above embodiment according to technical spirit of the present utility model or equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.

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. 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. 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. extrusion die as claimed in claim 1, it is characterized in that, described main part is cylindrical shape.
6. 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 air slot is rectangle, surrounds described nib, and a limit and described first air slot of described rectangular second air slot are perpendicular; The shape of described 3rd air slot is from the rectangular four edges of described second air slot, extend the some articles of line segments being communicated with described nib respectively respectively.
7. 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 air slot is circular, surrounds described nib; The shape of described 3rd air slot is from the periphery of the circle of described second air slot, extend the some articles of line segments being communicated with described nib respectively respectively.
8. extrusion die as claimed in claim 1, it is characterized in that, described inert gas is nitrogen.
9. extrusion die as claimed in claim 1, it is characterized in that, the quantity of described nib is at least two.
CN201520243822.2U 2015-04-21 2015-04-21 Extrusion die Active CN204892581U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520243822.2U CN204892581U (en) 2015-04-21 2015-04-21 Extrusion die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520243822.2U CN204892581U (en) 2015-04-21 2015-04-21 Extrusion die

Publications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104801561A (en) * 2015-04-21 2015-07-29 苏州铭德铝业有限公司 Extrusion die
CN105478512A (en) * 2015-12-28 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN105478511A (en) * 2015-12-25 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN108817121A (en) * 2018-05-30 2018-11-16 慈溪市宜美佳铝业有限公司 A kind of constant temperature high-speed extrusion liquid nitrogen cooling device and cooling technique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104801561A (en) * 2015-04-21 2015-07-29 苏州铭德铝业有限公司 Extrusion die
CN105478511A (en) * 2015-12-25 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN105478512A (en) * 2015-12-28 2016-04-13 青海模具制造科技有限公司 Extrusion die
CN108817121A (en) * 2018-05-30 2018-11-16 慈溪市宜美佳铝业有限公司 A kind of constant temperature high-speed extrusion liquid nitrogen cooling device and cooling technique

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