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[CN 201910888974.0] Integrated forming method of in-situ extrusion and upsetting after sintering of metal powder with atmosphere protection and its integrated hydraulic press
[CN 201910888974.0] Integrated forming method of in-situ extrusion and upsetting after sintering of metal powder with atmosphere protection and its integrated hydraulic press Title: Integrated forming method of in-situ extrusion and upsetting after sintering of metal powder with atmosphere protection and its integrated hydraulic press Application No.: CN 201910888974.0 Applicant: Yanshan University Application Date: 2019-9-19 Patent Type: the present invention discloses an in-situ extrusion and upsetting integrated forming method for metal powder sintered with atmosphere protection and an integrated forming hydraulic press thereof. The invention integrates sintering, in situ repeated extrusion and rough forming, and the microtissue of the formed product is finer and the comprehensive mechanical properties are better, and the integrated forming hydraulic press of the present invention comprises a frame, a workbench, a furnace body, a heating device, a cooling system and a hydraulic system. The frame includes an upper beam, a lower beam, a fixed beam and an upright post, forming a frame structure with closed sides and open front and rear. The workbench is installed on the fixed beam, the furnace body is fixed on the workbench, and is provided with heating device, heat preservation device and protective layer. There is a mold set inside the furnace body. The upper pressing head, upper convex mold, lower convex mold, concave mold and lower pressing head are coaxially matched, and have hydraulic system to control loading and return, the cooling system can effectively protect the hydraulic device.
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