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[CN 201910183757.1] Metal material mold reciprocating extrusion device suitable for one-way four-column hydraulic press
[CN 201910183757.1] Metal Material Molded Reciprocating Extrusion Device Suitable for One-way Four-column Hydraulic Press Title: Metal Material Molded Reciprocating Extrusion Device Suitable for One-way Four-column Hydraulic Press Application Number: CN 201910183757.1 Applicant: China Aviation Development Beijing Institute of Aeronautical Materials Application Date: 2019-3-11 Patent Type: Invention Application This invention is a metal material molded reciprocating extrusion device suitable for one-way four-column hydraulic press, the device includes upper and lower ejector rods, prestressed frame structure, reciprocating extrusion hydraulic cylinder, extrusion outer die sleeve, extrusion inner die sleeve, upper and lower padding, heating system, hydraulic control system, etc. The device uses the existing four The main pressure of the column hydraulic press locks the mold-type reciprocating extrusion device up and down, and then uses 4 hydraulic cylinders to realize the reciprocating movement of the mold-type reciprocating extrusion device. The structure is simple, the cost is greatly reduced, and the reciprocating extrusion speed is continuously adjustable, it can meet the different requirements of different materials for plastic deformation speed, and is applicable to a wider range of metal materials. In the reciprocating extrusion, the extrusion billet (13) is subjected to three-way compressive stress and is extruded repeatedly, so that the extrusion billet (13) accumulates a large deformation, significantly improves the cracks, voids and other organizational defects in the metal deformation process, and can effectively refine the metal grains through reciprocating extrusion.
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