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Spiral extrusion shaping and processing apparatus

A technology of extrusion molding and processing equipment, which is applied in the field of material processing, can solve the problems of small deformation and small upsetting, and achieve the effects of easy processing, wide application range, and significant grain refinement effect

Inactive Publication Date: 2005-12-21
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this technology is that it integrates extrusion and upsetting. Since materials with poor plasticity are prone to cracking during upsetting, the amount of upsetting cannot be large, and the amount of deformation per pass is small. It is only suitable for the preparation of easily deformed materials. Metal

Method used

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  • Spiral extrusion shaping and processing apparatus
  • Spiral extrusion shaping and processing apparatus
  • Spiral extrusion shaping and processing apparatus

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Embodiment Construction

[0013] Such as figure 1 , 2 , 3, the present invention includes: a feeding mechanism 1, a thinning mechanism 2, and a molding mechanism 3. The refinement mechanism 2 includes a cylindrical mold sleeve 4 and a cylindrical mold core 5. There is a spiral groove on the surface of the cylindrical mold core 5, and it is loaded into the mold sleeve 4 to form a spiral groove with a matching taper of 1° to 4°. Channel 6, the center of both ends of the cylindrical mold core 5 is provided with a straight channel 7, and a section of transition channel from the center to the surface is connected between the straight channel 7 and the spiral channel 6 respectively. The thinning mechanism 2 is respectively connected with the feeding mechanism 1 and the forming mechanism 3 through the straight channel 7 .

[0014] The feeding mechanism 1 is a driving device, which can be composed of an extruding rod 8 and an extruding cylinder 9. The straight passage 7 of chemical mechanism 2 is connected....

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PUM

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Abstract

This present invention relates to the method of helix extrusion machining setting which belongs to material machining field. The invention include: enter material setup, fine setup, molding setup. The connection is: The fine setup includes cylinder style former, cylinder style former surface have helix flute, depends on 1deg.~4 deg. mix degree put into cylinder style former make up helix passage, the cylinder style model center have straight passage, fine setup connect with enter material setup and molding setup by straight passage. The invention have prominent fine crystal effect, simple organize, easily machining, widely used, realize series produce, be prone to application of industry.

Description

technical field [0001] The invention relates to a device in the field of material processing, in particular to a spiral extrusion molding processing device for preparing ultrafine-grained materials and direct molding of materials. Background technique [0002] Ultrafine-grained materials are high-performance structural materials that combine excellent strength and good plasticity and toughness. Grain refinement technology has always been the main line and important research direction for the preparation of high-performance structural materials: first, the emergence of ingot metallurgical processes such as adding refiners and modifiers, and conventional plastic deformation processes such as extrusion, rolling, and forging, but The refining ability is limited; then there are rapid solidification, mechanical alloying and powder metallurgy to prepare microcrystalline materials, but there are disadvantages such as many processes, serious pollution and oxidation. On this basis, t...

Claims

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Application Information

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IPC IPC(8): B21C23/00
Inventor 王渠东陈勇军
Owner SHANGHAI JIAO TONG UNIV