共搜索到17095条信息，每页显示10条信息，共1710页。用时：0小时0分0秒455毫秒
of MIM, PIM and relative PM technology in the USA[J]. Powder Metallurgy Technology, 2006, 24(5): 384-387. [3] ROSOF B H. The metal injection molding process comes of age[J]. J of Mater, 1989, 41(8... 410083, China) Abstract: The existence of solidification layer on the wall of cavity in powder injection molding filling process by boundary layer theory of microflow was reviewed. The structure......
Evidence for Vacancy Injection during the Oxidation of Iron () 摘要:Iron discs have been oxidised at 890 ℃ on one side only, with the other side protected by an inert gas. The scale-metal adhesion was very good. Initially, scale-metal adhesion was maintained by the scale relaxing towards the metal but after a time which depended upon the initial metal thickness, oxide relaxation ceased......
; 文章编号:1672-7207(2018)06-1381-06 Research on thermal contact resistance between polymer and mold during thin-wall injection molding JIANG Li1, JIANG Bingyan1, WU Wangqing1, ZHU...-Nürnberg, Erlangen 91058, Germany) Abstract: Based on the heat exchange analysis between polymer and mold during thin-wall injection molding, a novel algorithm for calculating thermal contact......
of microlens array by injection compression molding SUN Leilei, JIANG Bingyan, CHEN Lei, JIANG Fengze (State Key Laboratory of High Performance Complex Manufacturing,School of Mechanical and Electrical... array; injection compression molding; residual force 微透镜阵列是微光学系统中重要的光学元件之一,在光学领域中的应用日益广泛[1-5].微透镜阵列的成型材料有石英和聚合物,传统石英材料多采用热压成型,成型精度高,制件质量好,但生产效率低；当前聚合物微透镜阵列多采用注射成型时,生产效率高,但制件几何尺寸和光学性能较差[6-7].注射压缩成型是传统注......
图分类号:TG 174.443 文献标识码:A Microstructure and impact properties of slow injection A356 die castings with partial squeeze BAI Yan-fei, ZHAO Hai-dong, LI Yuan-yuan, KANG Zhi-xin... of slow injection A356 die casting with partial squeeze were investigated. The results show that as for the as-cast castings, eutectic Si particles are characterized as fibrous or long acicular shape......
%(体积分数), 并制备了最大磁能积(BH)max及抗压强度σbb分别为99kJ/m3和125MPa的注射成形粘结NdFeB磁体. 关键词: 注射成形; 粘结钕铁硼磁体; 表面改性; 取向磁场 中图分类号: TM273 文献标识码: A Injection molding bonded NdFeB magnet with high magnetic properties DUAN... fraction on the properties of injection molding anisotropic bonded NdFeB magnet were investigated with the magnetic injection molding machine designed by ourselves. The results show that the mass......
molding technology by semisolid processing. Semisolid metal forming has great potential because 1) it is a simple manufacturing process, 2) it is an alternative process for low-workability materials, and 3... molding experiment is performed as follows (see Fig.3). Firstly, minute metal scraps are placed in a metal mold (35 mm in outer diameter, 22 mm in inner diameter and 50 mm in height) and compacted at room......
of injection molding WANG Dao-hong1, 2, JIANG Bing-yan1, SHEN Rui-xia1, DENG Yi-shan1 (1. Key Laboratory of Modern Complex Equipment Design and Extreme Manufacturing, Ministry of Education, School..., and then relationship between melt flow ratio and cavity profile was analyzed. Correctional checking formula of melt flow ratio in injection molding was obtained by introducing a correction coefficient β......
......
......
