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Hydraulic equal-channel corner extrusion device

A technology of equal channel corners and extrusion devices, applied in metal extrusion, metal extrusion control equipment, metal processing equipment, etc., can solve problems such as extrusion failure, inconvenient operation, and slow extrusion speed, and achieve structural Simple, convenient operation, and the effect of improving efficiency

Active Publication Date: 2016-05-18
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equal channel angular extrusion process is a large plastic deformation process. When performing equal channel angular extrusion, the extrusion speed is relatively slow, and the extrusion speed is too fast to easily lead to extrusion failure.
At present, the sample preparation is mainly completed by a large-tonnage punching machine. Generally, a single sample is extruded, and it is mainly used for microstructure analysis and mechanical performance testing of the extruded sample. Therefore, the preparation efficiency of this method is low. The operation is inconvenient, which limits the promotion and application of the equal channel angular extrusion process

Method used

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  • Hydraulic equal-channel corner extrusion device
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  • Hydraulic equal-channel corner extrusion device

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components. In the description of the present invention, "plurality" means two or more, unless otherwise specifically de...

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Abstract

The invention discloses a hydraulic equal-channel corner extrusion device which comprises a fixed frame, a guide rail mechanism, a pushing mechanism, a die fixing mechanism, a travel detection mechanism, a hydraulic control module and a computer, wherein the guide rail mechanism and the pushing mechanism are mounted on the fixed frame; the pushing mechanism is mounted on the guide rail mechanism and can do transverse reciprocating motion along the guide rail mechanism; the die fixing mechanism is used for fixing a die; the travel detection mechanism is used for detecting a travel of the pushing mechanism; the hydraulic control module can control the transverse moving speed and the extrusion force of the pushing mechanism; the computer is connected with the pushing mechanism, the travel detection mechanism and the hydraulic control module respectively and can be used for acquiring data of the travel of output force of the pushing mechanism and sending a control instruction to control the moving speed and the output extrusion force of the pushing mechanism. The hydraulic equal-channel corner extrusion device can adjust the output extrusion force and the speed and has the advantages of high efficiency, high reliability, safety in operation and the like.

Description

technical field [0001] The invention relates to the technical field of mechanical processing and material forming, in particular to a hydraulic equal-channel corner extrusion device. Background technique [0002] Equal channel angular extrusion is a technology that refines the structure of the material and improves the performance of the material by subjecting the material to large plastic deformation. In the 1990s, Valiev et al. used this technology to obtain ultra-fine-grained aluminum alloys with sub-micron grain sizes, which set off a wave of research by scholars from all over the world on the refinement of material structures by equal-channel angular extrusion. Up to now, more than ten kinds of materials, including pure metals, single-phase alloys, multi-phase alloys, and metal matrix composites, have been researched on the structure refinement of ECAEP, and submicron or nanometer microstructures have been obtained. Class ultra-fine grain structure, the performance of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/21B21C31/00
Inventor 高雷雷王高观李琦沙磊
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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