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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
1 y, Q$ t& ~! `- f * Expose specimen in specified high and low temp, duration and cycles.1 Q: L9 t) ^: x- ]
暴露样品于规定的高低温、持续时间和周期中。/ @3 Z) f5 K' A6 X5 a
Temp. cycling : Including room temperature duration.. d8 t ^/ g* V) V
Thermal shock : Direct move between high and low temp. : M% N6 N u# r I% q
熱衝击:直接在高低温中转换。 ` T/ O# a! Y) R# F, n8 j
Purpose
, d0 T3 j& ]% f' a. ?; r# Z * Check resistibility of product to extremely high and low temperature encountering as
/ ~' j7 S& Q# C5 Q taking in and out at the polar regions.0 E( @$ h0 f; w! ~1 c
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。# C$ X; S. @2 U Y/ v: F H7 B
Mainly affect to crack, peeling off and deformation by expansion and
! P) |+ h2 K; B contraction and increasing termination resistance by corrosion.
5 O9 `& {4 E+ D) z 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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