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內(nèi)容提要
塑料制品已在工業(yè)，農(nóng)業(yè)，國防和日常生活中的方面得到廣泛應(yīng)用。特別是在電子業(yè)中則為突出。電子產(chǎn)品的外客大部分是塑料制品，產(chǎn)品性能的提高要求高素質(zhì)的塑料模具和塑料性能。成型工藝和制品的設(shè)計。
塑料制品的成型方法很多。其主要用于是注射，擠出，壓制，壓鑄和氣壓成型等和氣壓成型等。而注射模，擠出約占成型總數(shù)的60%以上。注射成型分為加料，熔融塑料，注射制件冷卻和制件脫模等五個步驟。當(dāng)然如利用電氣控制。可實現(xiàn)半自動化或自動化作業(yè)。
塑料注射模主要用于熱塑料制品的成型，已成功的用于成型熱固塑性塑料制品，它是塑料制品生產(chǎn)中十分重要的工藝裝置。注射模的基本組成是：定模機(jī)構(gòu)，動模機(jī)構(gòu)，澆注系統(tǒng)，導(dǎo)向裝置，頂出機(jī)構(gòu)，芯機(jī)構(gòu)，冷卻和加熱裝置，排氣系統(tǒng)。
因注射模成型的廣泛適用，正是我這個設(shè)計的根本出發(fā)點。
Summary
The plastics products to have already with daily life wait the aspect to acquire the extensive application at the industry, agriculture, national defense. Especially in the electronic industry then and particularly for outstanding. Electronics product that the outer shell spare parts that exaltation is mostly plastics function that request the high quantity. Type craft with product the design.
The plastics products of the type method is a lot of. Among them most of inject, die-casting to compatibly press type etc. But inject the mold, extrude, extrude roughly share type total amount of 60% above inject the type is divided in to add the material, meltdown plastics, and inject to make piece to cool off with make the piece to take off the mold to wait five steps. Certainly if make use off the electricity control. Can realize half auto or automatic homework.. Because inject the mold the type`s extensive suitable for use, exactly the basic point of departure of my this design.