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Efficient cooling aluminum profile hot extrusion die structure

A technology of hot extrusion dies and aluminum profiles, applied in the direction of metal extrusion dies, etc., can solve problems such as poor cooling effect of liquid nitrogen, and achieve the effects of improving life, increasing strength, and increasing contact area

Inactive Publication Date: 2011-05-25
SHANGHAI RUISILE COMPOSITE METAL MATERIALS +2
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AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of poor liquid nitrogen cooling effect in the prior art aluminum profile hot extrusion processing, the present invention provides a high-efficiency cooling aluminum profile hot extrusion die structure, the liquid nitrogen cooling channel of the structure is directly cooled to the mold At the working belt, the direct cooling of the mold working belt and the mold outlet profile can be realized, and the effect is better

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  • Efficient cooling aluminum profile hot extrusion die structure
  • Efficient cooling aluminum profile hot extrusion die structure
  • Efficient cooling aluminum profile hot extrusion die structure

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Such as figure 1 , figure 2 As shown, the prior art aluminum profile hot extrusion die is provided with a liquid nitrogen inlet 3 on the die pad 1 , and a liquid nitrogen channel 4 is provided on the die pad 1 and leads to the contact surface between the die pad 1 and the mold 2 . Such as image 3 As shown, there is a certain distance between the outlet of the liquid nitrogen channel 4 and the working belt 5 of the mold, which is not conducive to cooling.

[0017] Such as Figure 4 , Figure 5 As shown, the present invention is provided with a liquid nitrogen inlet 13 on the outer edge of the mold pad 11, and the liquid nitrogen channel 14 communicates with the liquid nitrogen inlet 13; the liquid nitrogen channel 14 is designed as a spiral at the contact surface part of the mold pad 11 and the mold 12 The outlet 17 of the liquid nitrogen passage 14 is int...

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Abstract

The invention provides an efficient cooling aluminum profile hot extrusion die structure which comprises a die and a die cushion, wherein a liquid nitrogen inlet is formed on the outer edge of the die cushion, a liquid nitrogen channel is formed on the contact surface between the die cushion and the die, and the liquid nitrogen channel is communicated with the liquid nitrogen inlet; and an outlet of the liquid nitrogen channel is led into the die, a liquid nitrogen leading-in hole is designed at the position corresponding to the outlet of the liquid nitrogen channel, and the liquid nitrogen leading-in hole leads to a working tape of the die. The structure can perform direct cooling to the working tape of the die, can realize the direct cooling of the working tape of the die and a profile at the outlet of the die, and has better cooling effect.

Description

technical field [0001] The invention relates to a die structure for processing aluminum profiles, in particular to a high-efficiency cooling aluminum profile hot extrusion die structure. Background technique [0002] In the hot extrusion production process of aluminum profiles, after the aluminum ingot is extruded through the die in the extrusion barrel, the temperature of the extruded aluminum profile and the die will increase, and because the extruded high-temperature profile and the die are exposed to the air In the process, the following defects will appear: 1. Hard alumina particles are produced on the surface of the aluminum profile, and some of them adhere to the exit of the mold, which will cause scratches on the surface of the subsequent profile and cause strain on the surface of the mold; 2. Continue to rise High mold temperature will lead to denitrification on the surface of the mold and reduce hardness, thereby shortening the service life of the mold; 3. The cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02B21C29/04
Inventor 严荣庆郑晓军陈纪欢
Owner SHANGHAI RUISILE COMPOSITE METAL MATERIALS
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