塑膠設(shè)計(jì)指南

J第一章塑腰材料加工方式的逗捧I

塑Of羥品之好璨輿材料逗攆及加工方式之迥巽而有趣大之信冊(cè)系。封於任何欲裂之塑品，其步驟卷先決定何槿材料能筑J逵到其所須

之物性，再來(lái)刖懸逗攆最遹切輿最^湃的加工方式，最彳爰刖視崖量之多寡而泱定^^。

1-1塑月蓼材料之逗攆

在大余勺探制了塑醪材料的基本物性，以下符做更深入的分析。下面所列之各表乃是依1?檄型方法裝成^片所測(cè)得之8??，輿祭生崖

所裂出的成品性^仍有相常大之差距，但做卷不同等級(jí)材料性^之比較已足矣。下表1-1懸一般常見塑料檄械性^之比較。

賽1.1常甩而外之,M娃IV比快

低拉伸力筑看?力

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表1?2即J卷塑料拉伸強(qiáng)度之靶凰，表1?3卷抗衡擎強(qiáng)度之J5BI。

表12常見RN之抗拉伸迎度

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B.S-10

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PPOBASED

6.0-14.57

2.“25PGLYPROPYUM

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50130

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9.5GLASSRHHFORCEDPVC

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5.04.7

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出siuooee

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表1-4及表1-5，刖懸塑料之其他性^。參考以上各表,即大名勺可知塑品用何槿材料可逢到其用途之所須性^要求。

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一般而言加了玻^彳爰，可增加拉伸力、:咸少拉伸量'抗磨耗力降低'撓曲力增高、熟燮形濫I度增加、熱膨脹降低及較不透明，而耐衡

擎力即不一定。但是硬度（除非高填充）、甯氯性-抗化^性及抗天候性即甚輾影簪。

表1-6刖懸一般材料之械械性^之定性超勢(shì)表。

若是依各槿用途來(lái)分，所使用之塑料大概可列表如1?7所示。

表1七

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