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外壳材料黄卡上的RTI

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发表于 2011-9-11 20:08:27 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
外壳材料黄卡上的RTI是指什么? RTI 又分ELEC,IMP,STR ,这些有是指什么?
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发表于 2011-9-11 20:08:44 | 只看该作者
查看塑胶材料认证 QMFZ2 Guide info
Thermal Endurance
The temperature below which a class of critical property will not be unacceptably compromised through chemical thermal degradation, over the reasonable life of an electrical product (relative to a reference material having a confirmed, acceptable corresponding performance) is defined as the Relative Thermal Index (RTI). More than one RTI may be appropriate for a given material depending on the property requirements for a given application. In certain cases, higher temperatures are permitted if so specified by the end-use product standard.

RTI Elec — Electrical RTI, associated with critical insulating properties.
RTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties.
RTI Mech Str — Mechanical Strength (Mechanical without Impact) RTI, associated with critical mechanical strength and structural integrity where impact resistance, resilience and flexibility may not be essential.

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