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UnitOneMoldConstructionsPassageOnePlasticsFormingandMoldsPassageTwoThree-plateInjectionMoldsMold[məuld]模具Constructions[kən‘strʌkʃən]结构Passage[‘pæsidʒ]段落Plastics['plæstiks]塑料Forming[fɔ:m]形成和成型plate[pleit]碟,盘,金属板,板块Injection[in'dʒekʃən]注射第一段塑料成型与模具模具结构第二段三板式注射模具UnitOneMoldConstructionsPassageOnePlasticsFormingandMolds11.General[‘dʒenərəl]一般,大体,概要Thecontinuingdevelopmentofinjectionmoldtechnologydemandsmoreandmoreoftheprocesses.continue[kən‘tinju:]v.继续,连续;development[di’veləpmənt]n.发展,显影technology[tek‘nɔlədʒi]n.技术,工艺;demands[di’mɑ:nd]v.要求processes[prə‘ses]n.过程,工艺流程undoubtedly[ʌn‘daʊtidli]ad.无疑(毕定)moldingshop成型车间influence[‘influəns]v.影响ifany”引出转折状语从句,译为“即便要”。on对,依赖Themostimportantproblemintheprocessofinjectionmoldingisundoubtedlythecorrectdesignofinjectionmold,becausethemoldingshophaslittleinfluence,ifany,ontheconstructionofthemachine①.第一段塑料成型与模具UnitOneMoldConstructionsEfficientproductionofthemostdiverseinjection-moldedpartsdependsprimarilyontheinjectionmold.模具结构Thedurabilityofthemoldsdependsontheircareandtreatment.Sincethemovingcomponentsandcavityofthemoldarealwayshardenedandground,theyshouldproducebetween500000and1000000000shots.高效率地生产各类注射成型零件首先取决于注射模具。diverse[dai'və:s]a.不同的,多种多样的模具的使用寿命取决于对它们的维护保养和加工处理,例如对一些活动件及型腔的表面硬化和磨削加工,使得它们的生产批量可以达到500000~1000000000件。Grind[graind](ground,ground)v.磨削,磨光Foreaseofconstructionandtolowermanufacturingcost,injectionmoldsarebecomingstandardized.Somefirmsofferready-madebasesofsquareorrounddesignasstandardorstripperplatemoldsforimmediateuse.Onlytheinsertsthenhavetobefittedintothebases.UnitOneMoldConstructions为了简化模具结构和降低制造成本,使注射模具标准化,许多制造商提供了已经生产好的标准方形或圆形底及脱模板供直接使用,仅需要将它们很好地与机座配合起来就可以了。firm[fə:m]a.坚定的,坚固的,结实的;n.商行,公司standardize[‘stændədaiz]v.标准化,使合于标准insert[in'sə:t]v.插入UnitOneMoldConstructions2.BasicMoldConstruction(1)OperatingPrincipleBasicallytheinjectionmoldconsistsoftwohalves.Onemoldhalfcontainsthespruebushingandrunnersystem,theotherhalfhousestheejectionsystem.Themoldedpartislocatedatthepartingline(ref.ToDIN16700).模具结构2.模具的基本结构(1)工作原理从根本上说,注射模具包括两个部分:一部分包括浇口和浇注系统,另一部分是放置顶出系统。模具零件是在分型面被定位的(参考DIN16700)。basically‘beisikəli]ad.基本上,主要地Consistsof[kən‘sist]v.由…组成halves[hɑ:vz]同分数islocatedat被放置在DIN16700德国标准化组织16700(2)SingleorMulticavityMoldsTosetupacalculationconceivingthechoiceofcavitiesinaninjectionmoldrequiresaccurateknowledgeofthematerialtobeprocessed,oftheinjection-moldingmachineandofthemolds.Themoldcostsincreasewiththerisingnumberofcavitiesandtherelativemachinecostsdecrease.UnitOneMoldConstructions(2)单型腔注射模具及多型腔注射模具注射模具型腔选择等设计计算要求掌握加工材料、注射机和模具等方面的准确知识。模具的制造成本随着型腔数目的增加而增加,而相关的加工费用减少了。single-cavitymold单型腔注射模具multicavitymold多型腔注射模具calculation[kælkju‘leiʃən]n.计算conceive[kən‘si:v]v.构思,以为,怀孕beprocessed被加工relative['relətiv]a.相对的,比较的Theproductiontimerequiredforagivenmoldedpartdependsonthewallthickness,theinjectionspeed,therecoveryrate,thetimerequiredtocoolthemoldedmaterial,thecoolingcapacityofthemoldandthenecessaryincidentaltimesuchasdurationofpressureholdingtime,ejectiontime,delaytime,etc.UnitOneMoldConstructions一个给定的模具零件的生产周期取决于壁厚、注射速度、收缩率、模内材料的冷却时间、冷却的效能及必要的辅助时间,如压力持续时间、排气时间及延迟时间等。Recoveryrate[ri‘kʌvəri]回收率,复原Capacity[kə‘pæsiti]容量,容积,能量,生产力incidental[,insi‘dentl]附带的,伴随的,辅助的suchas例如Duration[dju'reiʃən]持续,持久;持续期间Thereforethedecisionconcerningthenumberofcavitiestobedetermineddependson:①sizeoftheorder(numberofmoldedpartsinconnectionwithdeliverytime);②shapeofthemoldedparts(size,qualityrequirements);UnitOneMoldConstructions因此确定型腔数量的主要因素涉及以下几点:①订单大小(制品数量及相关交货时间);②制品形状(尺寸、质量要求);Therefore[‘ðɛəfɔ:]因此;因而;所以Concerning[kən‘sə:niŋ]关于,因素Cavities[‘kæviti]型控母模Order订购;订货,汇票,汇单Delivery[di‘livəri]交付,交货Shape[ʃeip]形状;样子,外形③injection-moldingmachine(clampingforce,plasticizingandinjectioncapacity);④moldcosts.Thereareseveralknownproceduresforcalculatingtheeconomicalnumberofcavities.Unfortunatelytheyaresovariedthatitisimpossibletocondensethem.UnitOneMoldConstructionsclampingforce[klæmp]夹紧力,合模力Capacity[kə‘pæsiti]容量,容积Procedures[prə‘si:dʒə]程序;方法;步骤Unfortunately遗憾地;不幸地Condense[kən‘dens]压缩;浓缩;使简洁,缩短③注射机(合模力、可塑性、注射容量);④模具费用。尽管已有多种计算经济型腔数目的方法,但这些计算方法多种多样,根本没法将它们提炼成为简便公式。Asanexample:Thetheoreticalmax.numberofcavitiesis:F1=Max.injectionvolumeofmachine(cm3)/Volumeofmoldedparts,sprueandrunner(cm3)F2=Plasticizingcapacity(cm3/min)/Numberofshots/min×(part,sprueandrunner(cm3))F2mustbeequaltoorsmallerthanF1.F1isthemaximumnumberofcavitiesattainable.UnitOneMoldConstructionsplasticize[plæstisaiz]v.(使)成为可塑;(使)可塑injectioncapacity注射容量Theoretical[θiə‘retikəl]理论的Sprue[spru:]注料口;浇注口例如:型腔的理论最大数目为:F1=注射机注射容量的最大值(cm3)/制件、注料口和流道体积(cm3)F2=注塑容量(cm3/min)/制造数量/min(制件、注料口和流道(cm3))F2必须小于等于F1,F1是可得到的型腔数目的最大值。UnitOneMoldConstructions动模座板顶料板(Ejectorplate)顶料杆,出料杆注塑机顶杆导柱/导套垫脚,模脚凸模板凹模板冷却水道定位环主流道主流道衬套浇注系统静模座板导柱导套动模垫板UnitThreeMoldConstructionsPassageTwoThree-plateInjectionMolds2Three-plateinjectionmoldsareinjectionmoldspossessingtwopartinglines,havingbeendesignedasdegatingmolds.Thismeansthatthesprueisseparatedfromthepartsinthemold.Attheconclusionofinjectionthemoldopensatthefirstpartingline,whichcontainsthesprueandrunnerandseparatedthepinpointgatefromthe
本文标题:塑料模具专业英语
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