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Extrusion die

An extrusion die and die technology, applied in metal extrusion die and other directions, can solve the problems of poor heat dissipation effect and poor durability of the die, and achieve the effect of good protection effect, improved protection effect and improved product yield.

Inactive Publication Date: 2016-04-13
QINGHAI MOLD MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The position of the mold ventilation protection is at the entrance of the mold hole, and the high-temperature metal aluminum has already passed through the working belt of the mold when it reaches this place, so the effect of avoiding the production of alumina particles is not ideal. Moreover, the heat dissipation effect of the mold is not good, and the durability is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Below in conjunction with accompanying drawing, this technical scheme is further described as follows:

[0028] Such as Figure 1-5 As shown, the present invention discloses an extrusion die, an extrusion die, comprising a die face 2 and a die pad 1, characterized in that the die pad 1 includes a die hole 11, a die hole effect layer 12 and a cooling interlayer 13. The mold surface 2 is provided with a mold working belt 23, an air guide groove 22 and an air inlet 21; the inert gas enters from the air inlet 21 of the mold surface 2 and flows into the mold through the air guide groove 22 to work Belt 23; the mold working belt 23 and the die hole 11 are circular holes; the cooling interlayer 13 is provided with an inlet pipe 14 and an outlet pipe 15; the inlet pipe 14 is located at the bottom of the mold pad 1, and the outlet pipe 15 is located at the mold pad 1 Top; the water inlet pipe 14 and the water outlet pipe 15 are arranged in parallel and opposite directions; the ...

Embodiment 2

[0030] Select a commercially available similar extrusion die, and conduct a comparative test with the extrusion die in Example 1 of the present invention and the extrusion die in the implementation of CN201510191067.

[0031] 1. Durability test: 500 molds were taken for comparison for 1000 hours.

[0032]

[0033] 2. Product yield test: take 20 molds each, and compare the production of 1000 products

[0034]

[0035] It can be seen that the extrusion die of the present invention can effectively avoid the production of alumina particles, improve the product yield and reduce die loss.

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Abstract

The invention discloses an extrusion die which comprises a die face and a die cushion. The extrusion die is characterized in that the die cushion comprises a die hole, a die hole acting layer and a cooling interlayer; a die working belt, a gas guide groove and a gas inlet hole are arranged in the die face; and inert gas enters the extrusion die from the gas inlet hole of the die face and flows into the die working belt through the gas guide groove. According to the extrusion die, aluminum oxide particles can be effectively prevented from being generated, the product yield is increased, and meanwhile die losses are reduced.

Description

technical field [0001] The invention relates to the technical field of mechanical processing and manufacturing, in particular to an extrusion die. Background technique [0002] In the prior art, an extrusion die for aluminum profiles generally consists of a die face and a die pad, which are usually assembled in a surface-attached manner and fastened to form a complete set of extrusion dies. Usually, the extrusion die needs to be heated to about 480 degrees to start extrusion, and the aluminum alloy is formed through the working belt of the die at high temperature. During this process, on the one hand, metal aluminum will undergo oxidation reaction with oxygen at high temperature, and produce granular oxide on the surface of the profile, which affects the quality of the profile; on the other hand, the mold will The production is carried out under the working temperature, the heat dissipation is slow, and the heat dissipation effect is poor. The thermal stress generated by lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02B21C29/04
CPCB21C25/02B21C29/006B21C29/04
Inventor 王天乙
Owner QINGHAI MOLD MFG TECH CO LTD
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