【正文】 s mold, of which about 30% of plastic around, with an average annual growth rate is 13%. Mold manufacturing level has been greatly improved, in large molds capable of producing 48 inches large screen color TV Molded injection mold, large capacity washing machine full set of plastic molds and car bumpers and instrument panels and other plastic overall molds, precision plastic molds aspect, the camera is capable of producing plastic molds, multicavity molds and small module gear plastic mold. Such as Tianjin, Tianjinday Electrical Co., Ltd. and Yantai Polaris Mold Co., VCD and DVD manufacturing multicavity mold gear, such gear plastic parts produced by the dimensional accuracy, concentricity, runout and other requirements have reached similar foreign products level, but also using the latest gear design software, correcting profile errors caused by mold shrinkage due, up to the standard involute requirements. It can produce 肥皂盒注塑模具設(shè)計 31 thickness of only of a twocavity mold cup mold and aerospace higher difficulty extrusion molding plastic doors and windows, and so on. Manufacturing precision injection mold cavity up to ~ , the surface roughness , mold quality, life significantly improved, nonhardening steel life of 10 to 30 million times, hardened steel up to 50 to 10 million times , shorter delivery time than before, but still a wide gap pared with foreign. Molding process, the multimaterial plastic molding, efficient multicolor injection molding, inserts swap structure and innovation Pulling the release mechanism has also made great progress. Gasassisted injection molding technology using more mature, such as Qingdao Hisense Mould Co., Ltd., Tianjin munications and broadcasting pany mold factory and other manufacturers successfully on 29 to 34inch TV and some thickwalled shell mold parts using gasassisted technology, some of the Manufacturers also used the CMOLD gasassisted software, to achieve better results. Pres panies such as Shanghai New users will be able to provide gasassisted mol。s 10station crosslinked EVA foam injection molding machine, injection molding machines and by one circumferentially arranged 10 sets of injection mold position, which in turn die 10 is moved to the injection molding machine prior to injection molding, injection after being mold on the move needs to be done stereotypes, mold, remove the article, a model of the process, all these processes automatically controlled by a puter. The crosslinked foam injection unit will be mediumsized plastic injection molding process is continuous, 華東交大畢業(yè)設(shè)計 improve the productivity of injection molding machine [2]. French BILLION pany doubleinjection, rotatable mold injection technology, two male parallel placed on a rotatable support structure, two injection molding machines simultaneously into the respective mold injection of different materials, and then open the mold, the male mold scaffolding after moving forward rotated 180 degrees, where color products on a male mold is removed, and the next injection molding work. The doubleinjection equipment to improve the level and continuous operation of space equipment pactness. (3) Application picture screw injection molding technology. INSHOT pany introduced color picturescrew injection molding techniques, can be called coinjection molding technology a major breakthrough. This injection molding equipment is mainly posed of a cylinder, two picturescrew and two sets of transmission ponents. The large cavity as small screw screw screw barrel posed picture, the two screws rotate with a respective moving two independent drive system is controlled by the injection mold structure is relatively simple, greatly reducing the coinjection molding molding technology equipment needed costs. In addition, foreign in pression molding and blow molding automation and continuous production technology also has great progress. Such as Italy Sacmi quick succession Su cap pressure molding machine, mainly by 1 sheet extrusion machines, automatic slicing with rapidly rotating mechanism 64 sets caps pression molds of ponents. Extruded sheet is cut into the whereabouts of the female mold, the male mold and a female mold clamping, mold stereotypes by a twist Actuator male mold on the cap removed. This equipment can be made per minute the fastest 1200 plastic caps, high production efficiency is currently in the country is difficult to see [2]. In contrast, the domestic phase plastic mold is much behind than abroad, most currently used is a singlecavity mold cavity simply more than 70%, still dominated by a sophisticated multicavity plastic injection molding multicolor plastic injection molding has been able preliminary design and manufacturing, but there are a lot of precision molds have to rely on imports. However, the country started to die from now through half a century of development, the mold industry has been greatly developed, in 1999 China39。 肥皂盒注塑模具設(shè)計 27 參考文獻 [1] 葉久新 王群主編 .塑料成型工藝及模具設(shè)計 .湖南 .機械工業(yè)出版社， 2021 [2] 王玉甲 張忠林等主編 . 模具設(shè)計完全自學(xué)手冊 .北京 .機械工業(yè)出版社，2021 [3] 周慧蘭 主編 .模具設(shè)計與制造使用教程 .北京 .化學(xué)工業(yè)出版社， 2021 [4] 肖乾 唐曉紅主編 .模具設(shè)計與制造使用教程 .北京 .中國電力出版社， 2021 [5] 陳學(xué)銘 主編 .手動分模及模具設(shè)計技術(shù)解析 .北京 .清華大學(xué)出版社， 2021 [6] 洪亮 主編 .模具設(shè)計教程 .北京 .清華大學(xué)出版社， 2021 [7] 吳兆祥 主編 .模具設(shè)計與制造手冊 .北京 .機械工業(yè)出版社， 2021 [8] 詹友剛 主編 .模具設(shè)計實例精解 .北京 .機械工業(yè)出版社， 2021 [9] 付利 主編 .塑料模具技術(shù)手冊 .北京 .機械工業(yè)出版社， 1997 [10]周永泰 .我國塑料模具現(xiàn)狀和發(fā)展趨勢 .塑料 [J]. [11]張杰 . 塑料模設(shè)計及案例精選 .電子工業(yè)出版社， [12]石世銚 .注射模具設(shè)計與制造 300 問 .機械工業(yè)出版社， [13]陳世煌，陳可娟 .塑料注射成型模具設(shè)計 .國防工業(yè)出版社， [14] forming and molds[J].Die and Mould technology,2021,5. [15] Yung K l,Liu H,Xu Y,Target tracking in micro injection molding[J].Key Engineering Materials,2021. 華東交大畢業(yè)設(shè)計 附錄 A 外文翻譯 Injection Mol