公开(公告)号：US20230369005A1

公开(公告)日：2023-11-16

申请号：US18316257

申请日：2023-05-12

申请人： Beijing Institute of Technology

发明人： Li XI ,  Kaiyuan XUE ,  Daining FANG

IPC分类号： H01J35/10 ,  H01J35/06 ,  H01J35/14 ,  H01J35/20

CPC分类号： H01J35/106 ,  H01J35/101 ,  H01J35/066 ,  H01J35/147 ,  H01J35/20 ,  H01J2235/1026 ,  H01J2235/1275

摘要： A rotary-transmission-target microfocus X-ray source and an X-ray generation method based on the rotary-transmission-target microfocus X-ray source are provided. The X-ray source comprises a chamber, and an electron beam system is installed in the chamber. The electron beam system is arranged on a same side as an anode target rotating shaft. A motor in a rotary anode target system drives an anode target to rotate through a bevel gear transmission device. The microstructure of a target is designed. An electron beam emitted by the electron beam system vertically bombards the metal target of the rotating anode target. A cooling system is configured to cool the anode target.

公开(公告)号：US20230249382A1

公开(公告)日：2023-08-10

申请号：US17816465

申请日：2022-08-01

申请人： Beijing Institute of Technology

发明人： Baosheng XU ,  Chenqi WANG ,  Lijie QU ,  Yanfei CHEN ,  Daining FANG ,  Yazheng YANG

IPC分类号： B29C39/12 ,  C09K5/14 ,  C08L61/06 ,  C08K3/04 ,  F16L59/02 ,  B29C39/42

CPC分类号： B29C39/123 ,  C09K5/14 ,  C08L61/06 ,  C08K3/04 ,  F16L59/029 ,  B29C39/42 ,  C08K2201/001 ,  B29K2061/04

摘要： Disclosed is a material with directional thermal conduction and thermal insulation and a preparation method thereof. The method includes: (1) dispersing a viscose-based carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion I; dispersing a high-thermal conduction carbon fiber in water and adding a phenolic resin and polyacrylamide sequentially to obtain a dispersion II; (2) dividing equally the dispersion I and the dispersion II into several parts, respectively, pouring each part of the dispersion I and each part of the dispersion II into a mold alternately until all the dispersion I and the dispersion II are poured, draining after each pouring of a part of the dispersion I or a part of the dispersion II to obtain a porous carbon fiber skeleton, and solidifying the skeleton to obtain a preform; (3) subjecting the preform to a heat treatment to obtain the material.