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1、本科機械畢業(yè)設(shè)計論文CAD圖紙QQ401339828摘要塑料成型制品是以塑料為主要結(jié)構(gòu)材料經(jīng)成型加工獲得的制品，又稱塑料制件，簡稱塑件。塑料成型制品應(yīng)用廣泛，特別是在電子儀表、電器設(shè)備、通信工具、生活用品等方面獲得大量應(yīng)用。如各種受力不大的殼體、支架、機座、結(jié)構(gòu)件、裝飾件等；建筑用各種塑料管材、板材和門窗異型材；塑料中空容器和各種生活用塑料制品等。塑料制件的主要加工方法是塑料成型加工。塑料成型是將各種形態(tài)的塑料原料（粉狀、粒狀、熔體或分散體）熔融塑化或加熱達到要求的塑性狀態(tài)，在一定壓力下經(jīng)過要求形狀模具或填充到要求模具模腔內(nèi)，待冷卻定型后，獲得要求形狀、尺寸幾性能塑料制件的生
2、產(chǎn)過程。其特點是生產(chǎn)制品形狀尺寸穩(wěn)定，可實現(xiàn)連續(xù)生產(chǎn)，一模多件生產(chǎn)，生產(chǎn)效率高。常用的塑料成型工藝有注射成型、壓縮成型、中空成型等，注射成型是塑料模塑成型的一種主要成型方法。注射成型技術(shù)出現(xiàn)了許多新的工藝方法，如無流道凝料注射成型、熱固性塑料注射成型、排氣注射成型、反應(yīng)注射成型以及多品種塑料的共注射成型。關(guān)鍵詞:塑料制件；注塑成型；19本科機械畢業(yè)設(shè)計論文CAD圖紙QQ401339828AbstractPlasticmoldingplasticproductsisthemainstructuralmaterialobtainedbyformingproducts,alsokn
3、ownasplasticparts,plasticpartsforshort.Plasticmoldingproductsarewidelyused,especiallyintheelectronicinstruments,electricalequipment,communicationtools,dailynecessities,suchasalargenumberofapplicationsreceived.suchasalargeshell,frame,base,structuralparts,decorativeparts;allkindsofplasticpipe
4、usedinconstruction,sheetmetalandprofilewindowsanddoors;hollowplasticcontainersandplasticproductssuchaslife.Themainprocessingofplasticpartsaremadeofplasticprocessingmethod.Plasticmoldingistovarioustypesofplasticrawmaterials(powder,granular,meltordispersion)plasticsmeltorheatingplastictomeett
5、herequirementsofstate,toacertainshapeunderpressureafterarequesttotherequirementsofmoldormold-filledcavity,stereotypestobecoolingafterithasbeenrequestedtheshape,size,numberofpropertiesofplasticpartsoftheproductionprocess.Characterizedbytheshapeoftheproductionofdimensionallystableproducts,can
6、realizecontinuousproduction,morethanonemodeofproduction,highproductivityCommontypeofplasticmoldingprocessesareinjectionmolding,compressionmolding,BlowMoldingandsoon,plasticinjectionmoldingisamoldingmethodofformingamajor.Injectionmoldingtechnologytherearemanynewtechnicalmethods,suchasmateria
7、lnon-condensateflowinjectionmolding,thermosetplasticinjectionmolding,theexhaustinjectionmolding,reactioninjectionmolding,aswellasthetotalnumberofvarietiesofplasticinjectionmoldingKeywords:Plasticparts;Injectionmolding；19本科機械畢業(yè)設(shè)計論文CAD圖紙QQ401339828目錄摘要IAbs
