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发表于 2007-7-6 23:05:53
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来自: 中国广东东莞
Method& x; m7 w' J/ G2 R0 w
* Expose specimen in specified high and low temp, duration and cycles.
2 V- s8 q' j2 c( @ 暴露样品于规定的高低温、持续时间和周期中。* A( X0 `! s- V- q+ h2 Q$ ?
Temp. cycling : Including room temperature duration.6 d: n: o+ T6 g1 t, @& E) O* S0 `
Thermal shock : Direct move between high and low temp. ) s7 W% C; O# C) e L
熱衝击:直接在高低温中转换。 8 [6 A4 V1 D4 W/ K* z1 f- j3 n
Purpose
% d# D3 x5 G p$ r+ U5 d * Check resistibility of product to extremely high and low temperature encountering as 1 g6 E* Z1 ]# a' W5 @ b
taking in and out at the polar regions.6 `8 [ O3 }* i- L6 Z$ X m
試样在高温低温下反覆转换、及在短時間中反覆的接受熱衝击、可用来判断産品在极端区域的抵抗力。
V: L& h% }" r; M4 eMainly affect to crack, peeling off and deformation by expansion and 3 s$ `% W$ \/ j) h1 O
contraction and increasing termination resistance by corrosion.( Q. |7 V" q" I5 F. E% ? j' _# H
主要影响:因材料伸縮所造成的裂痕、剥離、機械性的位移及因腐蝕所造成的接触電阻增加、和HSG的劣化。 |
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