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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
Method1 M9 t8 u) D* b B2 C
* Expose specimen in specified high and low temp, duration and cycles.
$ ^; V7 u4 |8 s$ Z( u$ ?2 X& p 暴露样品于规定的高低温、持续时间和周期中。/ U& V, e' M; p
Temp. cycling : Including room temperature duration.
' X7 l% _' p6 ]6 } Thermal shock : Direct move between high and low temp.
. k, }7 W- k7 f( C% |2 c 熱衝击:直接在高低温中转换。
! L& W6 R, S- s w6 G4 fPurpose
# K8 W7 @) e& J0 E* H5 m * Check resistibility of product to extremely high and low temperature encountering as : W9 [! F: s* [5 R( ^' _# [! q% k
taking in and out at the polar regions.
/ J' Q/ d5 ~! {" n 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。3 L: a e5 q# i; Z6 C9 Y; U
Mainly affect to crack, peeling off and deformation by expansion and & z; G+ U- G+ m+ M
contraction and increasing termination resistance by corrosion.
" r7 a B! l, ]2 P( A# x4 a 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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