91精品国产91_国产伦精品免费视频_日韩久久一级片_国产精品美女免费看

Patent Operation Platform

Patent

[CN 201910888979.3] Metal powder sintering under atmosphere protection or vacuum and in-situ equal channel extrusion hydraulic press and extrusion method


[CN 201910888979.3] Hydraulic Press and Extrusion Method for Metal Powder Sintering under Atmosphere Protection or Vacuum and In-situ Equal Channel Extrusion Title: Hydraulic Press and Extrusion Method for Metal Powder Sintering under Atmosphere Protection or Vacuum and In-situ Equal Channel Extrusion Application Number: CN 201910888979.3 Applicant: Yanshan University Application Date: 2019-9-19 Patent Type: Invention Application The present invention provides a hydraulic press for metal powder sintering and in-situ Equal Channel Extrusion under Atmosphere Protection or Vacuum, it includes a frame, an upper pressure head, a lateral pressure head, a movable workbench, a furnace body, an atmosphere protection device and a hydraulic system. The atmosphere protection device is connected with the furnace body. The frame is an L-shaped frame mechanism, and the frame includes a U-shaped horizontal Beam, two horizontal columns, the second movable beam, four columns, the upper beam and the first movable beam. The invention has the advantages of simple structure, convenient operation, integration of sintering and equal-channel extrusion forming, atmosphere protection and vacuuming functions. The metal powder of the traditional process needs to be transferred to a press machine after being sintered, cooled and taken out for heat and other channel deformation. The invention can sinter and in-situ equal-channel extrusion forming block materials with fine microstructure and excellent comprehensive performance, it overcomes the shortcomings of cooling and secondary heating between powder sintering and primary equal channel extrusion deformation process in the traditional process, and realizes the effective unity of powder sintering and subsequent cumulative deformation.

主站蜘蛛池模板: 久久久久久69| 国产熟女高潮视频| 国产欧美精品在线| 青青久久av北条麻妃海外网| 色妞一区二区三区| 色妞在线综合亚洲欧美| 99视频在线播放| 国产免费一区二区视频| 久久夜色撩人精品| 精品免费国产| 精品人妻一区二区三区四区在线| 欧美日韩国产999| 欧美激情亚洲综合一区| 日韩精品 欧美| 国产精品视频yy9099| 亚洲最新免费视频| 国产精品午夜视频| 欧美日韩一区二区视频在线观看| 午夜免费日韩视频| 欧美日韩精品免费看| 国产高清自拍99| 尤物一区二区三区| 国产精品高潮呻吟久久av野狼| 日韩一区二区在线视频| 久久婷婷国产精品| 久久精品国产精品亚洲| 久久久在线视频| 美女久久久久久久| 久久伊人精品天天| 91精品久久香蕉国产线看观看| www高清在线视频日韩欧美| 国产精品久久久久久久久久久不卡 | 国外色69视频在线观看| 日韩视频欧美视频| 欧美日韩国产高清视频| 久久国产精品视频在线观看| 国产尤物91| 欧美 日韩 国产精品| 亚洲人成网站在线观看播放| 久久国产精品高清| 国产精品高清网站|