Part of Guide info.:" ~7 }7 D) ~9 Z( y
Thermal Endurance
+ `* h0 ^' @$ n5 y. }4 G" pThe materials covered by this program have been investigated with respect to thermal endurance of certain critical properties. The investigation was performed as part of a long-term thermal-aging program or based on historical record in accordance with ANSI/UL 746B, "Polymeric Materials - Long Term Property Evaluations." 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.+ e* X9 D! c0 Z' M1 O: f& A
. Q! B* H9 m) p# d. E9 y
RTI Elec — Electrical RTI, associated with critical insulating properties.
& z/ |/ j: x: x/ BRTI Mech Imp — Mechanical Impact RTI, associated with critical impact resistance, toughness, elongation and flexibility properties., d! B$ Y2 n1 k, d6 Y" T% y
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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发表于 2019-11-7 07:53
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刚好是150℃还是95℃的问题，
同一个料，这三个温度通常不会相差太大吧？！