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Bipyramid copper alloy extrusion die

An extrusion die and copper alloy technology, applied in the field of double-cone copper alloy extrusion die, can solve the problems of poor metal fluidity and high yield strength, and achieve the effect of improving service life and reducing direct manufacturing costs.

Active Publication Date: 2010-04-21
江苏隆达超合金股份有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Secondly, extrusion of high-strength materials requires large-tonnage extrusion equipment due to the high yield strength of the material itself and poor metal fluidity.

Method used

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  • Bipyramid copper alloy extrusion die
  • Bipyramid copper alloy extrusion die
  • Bipyramid copper alloy extrusion die

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0016] As shown in the figure: the biconical copper alloy extrusion die includes an outer mold 1 and an inner mold 2. The outer mold 1 is provided with an outer mold conical cavity 1.1 arranged in an inverted conical shape, and the outer mold conical cavity 1.1 is below A cylindrical installation cavity 1.2 is set in the outer mold 1 of the outer mold, the top of the installation cavity 1.2 is connected to the bottom end of the outer mold conical cavity 1.1, and the diameter of the installation cavity 1.2 is consistent with the diameter of the cone bottom of the outer mold conical cavity 1.1 There is a cylindrical outlet cavity 1.3 in the outer mold 1 below the installation cavity 1.2, the bottom end of the installation cavity 1.2 is connected to the top of the outlet cavity 1.3, and the diameter of the installation cavity 1.2 is larger than the diameter of the ...

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Abstract

The invention relates to a bypyramid copper alloy extrusion die which is mainly used on extruding high-strength copper alloy tubes. An outer die is provided with an outer die taper cavity arranged in an inverse taper shape, an outer die below the outer die taper cavity is internally provided with a columnar installing excess cavity, an outer die below the installing excess cavity is internally provided with a columnar outlet cavity, an inner die is provided with an inner taper cavity arranged in an inverse taper shape, an inner die below the inner die taper cavity is internally provided with a columnar sizing belt, an inner die below the sizing belt is internally provided with an outlet taper arranged in a positive taper shape, an extrusion liner is arranged on the upper end face of the outer die, the bottom end of the inner hole of the extrusion liner covers the taper top of the outer die taper cavity, an extrusion pad is connected into the extrusion liner in a sealing and sliding way, and the inner hole of the extrusion pad is used for positioning a hole forming pin. The invention can improve the liquidity of metals, reduces the extrusion force, relatively improves the product density, increases the product quality and greatly prolongs the service life.

Description

technical field [0001] The invention relates to a biconical copper alloy extrusion die mainly used for extruding high-strength copper alloy pipes. Background technique [0002] Copper alloy pipe pressure processing is a very important process. Usually the method of extrusion molding is adopted. In the extrusion process, the extrusion die is the key device to realize the product, especially when extruding high-strength materials such as C71500 and C71640, due to the influence of high temperature, high pressure and other harsh environments, its service life is very low, occupying the entire copper Alloy pipe processing costs a large proportion. This question has been puzzling the industry. Secondly, extrusion of high-strength materials requires large-tonnage extrusion equipment due to the high yield strength of the material itself and poor metal fluidity. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02
Inventor 翁祥金浦益龙
Owner 江苏隆达超合金股份有限公司
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