A kind of equal-volume reciprocating extrusion device and processing method of reinforced magnesium alloy plate

A reciprocating extrusion and magnesium alloy technology, applied in the direction of metal extrusion dies, etc., can solve the problems of not meeting the market demand for high-strength magnesium alloy sheets, the inability to produce reinforced magnesium alloy sheets, and the limitations of wide application, etc., to achieve good extrusion processing Effect, large-scale application prospect, simple mold structure

Inactive Publication Date: 2017-01-18
TAIYUAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

To sum up, the current existing reciprocating extrusion technology is complex and requires high equipment, and can only produce reinforced magnesium alloy bulk materials or magnesium alloy rods, but cannot produce reinforced magnesium alloy plates, which cannot meet the increasingly intense demands. The market demand for high-strength magnesium alloy sheets greatly restricts its wide application

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  • A kind of equal-volume reciprocating extrusion device and processing method of reinforced magnesium alloy plate
  • A kind of equal-volume reciprocating extrusion device and processing method of reinforced magnesium alloy plate
  • A kind of equal-volume reciprocating extrusion device and processing method of reinforced magnesium alloy plate

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0043] Such as figure 1As shown, the equal-volume reciprocating extrusion device for preparing reinforced magnesium alloy plates includes: 1. Upper extrusion telescopic head, 2. Extrusion punch, 3. Upper fixed platen, 4. Heating jacket, 5. Extrusion Die, 6. Fixing screw holes, 7. Fixing bolts, 8. Lower extruding telescopic head, 9. Magnesium alloy plate blank, 10. Raised area, 11. Lower fixing platen. Among them, the upper and lower extrusion telescopic heads are respectively connected with the upper and lower ends of the extrusion punch 2, the surface roughness of the extrusion punch 2 is Ra0.08-0.16 μm, and the two sides of the extrusion punch 2 (that is, facing Both sides of the extrusion channel) are provided with two raised areas 10 in the middle, and the longitudinal section of the raised areas 10 is trapezoidal ( figure 1 The enlarged pictur...

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Abstract

The invention relates to improvements on plate enhancement and a machining method, in particular to an isovolumetric reciprocating extrusion device and a machining method for an enhanced magnesium alloy plate, and belongs to the technical fields of non-ferrous metal plastic processing and enhancement of mechanical property. Through a novel reciprocating extrusion machining method, the magnesium alloy plate is deformed repeatedly in a heating state under the situation that the volume in a rectangular die cavity is kept constant, and severe plastic deformation is realized through isovolumetric repeated extrusion accumulated deformation, so that a large-area enhanced magnesium alloy plate with a superfine crystal microstructure is made, and the application field and application range of the magnesium alloy plate are expanded.

Description

technical field [0001] The invention relates to plate enhancement and improvement of processing methods, in particular to an equal-volume reciprocating extrusion device and processing method for reinforced magnesium alloy plates, and belongs to the technical field of plastic processing of non-ferrous metals and increasing mechanical properties. Background technique [0002] Magnesium alloy is the lightest metal structure material currently used. It has the advantages of high specific strength and specific rigidity, good damping and shock absorption performance, good thermal conductivity, easy cutting and easy recycling, and is known as "21st century green engineering material". , has been applied to a certain extent in the fields of aerospace, transportation and information industry. However, in addition to the above advantages, magnesium alloys have some disadvantages due to their own structure, such as low strength, poor plasticity, poor heat resistance, creep resistance, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C23/21B21C25/02
Inventor 张华程伟丽樊建锋吴解书许并社董洪标
Owner TAIYUAN UNIV OF TECH
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