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1、塑料模具设计目录第一章2一、塑件是的工艺分析2PP塑料概念3比重:3二、塑件的材料分析3成型收缩率:1.0-2.5%4成型温度:160-220℃4干燥条件:4物料性能密度小,强度刚度,硬度耐热性均优于低压聚乙烯,可在100度左右使用.具有良好的电性能和高频绝缘性不受湿度影响,但低温时变脆,不耐磨易老化.适于制作一般机械零件,耐腐蚀零件和绝缘零件。4成型性能4三、塑件的工艺尺寸5第二章5一、模具的结构设计5二、注射机选择及校核6三、确定浇注系统7四、分型面的设计9第三章10一、模具成型零件工作尺寸的计算10模具型腔的尺寸计算10型芯
2、布置11参考文献15otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,hehasbeenth
3、eNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand17-17-塑料模具设计奔驰车标塑料模具设计第一章一、塑件是的工艺分析塑件如图1所示,材料为聚丙烯(PP)。该塑件尺寸小,精度高。此塑件为奔驰车标外有圆环,外环为ø60
4、、内环为ø50。中间为奔驰的三角。otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,heha
5、sbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand17-17-塑料模具设计名称:奔驰车标材料:聚丙烯(PP)中文名:(聚丙烯)英文名称:PolypropylenePP塑料概念比重:0.9-0.91克/立方
6、厘米二、塑件的材料分析关于PP材料的介绍otherstaffoftheCentre.Duringthewar,ZhuwastransferredbacktoJiangxi,andDirectorofthenewOfficeinJingdezhen,JiangxiCommitteeSecretary.Startingin1939servedasrecorderoftheWestNorthOrganization,SecretaryoftheSpecialCommitteeAfterthevictoryofthelongMarch,h
7、ehasbeentheNorthwestOfficeoftheFederationofStateenterprisesMinister,ShenmufuguSARmissions,DirectorofNingxiaCountypartyCommitteeSecretaryandrecorderoftheCountypartyCommitteeSecretary,Ministersand17-17-塑料模具设计成型收缩率:1.0-2.5%成型温度:160-220℃干燥条件:物料性能密度小,强度刚度,硬度耐热性均优于低压聚乙烯,可在1
8、00度左右使用.具有良好的电性能和高频绝缘性不受湿度影响,但低温时变脆,不耐磨易老化.适于制作一般机械零件,耐腐蚀零件和绝缘零件。成型性能 1.结晶料,吸湿性小,易发生融体破裂,长期与热金属接触易分解. 2.流动性好,但收缩范围及收缩值大,易发