|
|
各位同学，
( b, v$ W7 h" M' b7 qUL1598,第16章垫片加速老化测试，评估垫片的张力和伸长率，各位是用多大的力去拉的？
: y& g1 e$ T6 |# L# z; ~1 T. C, z2 Z
16.5.9 Gasket accelerated aging (Method A)
' K5 F, C; m2 t' z* i z% n16.5.9.1 A gasket or bushing shall be subjected to the gasket accelerated aging test./ x3 q. @" U( @* o
16.5.9.2 Three specimens of the gasket or bushing material shall be evaluated for tensile strength and
* ?* @* i+ s. g X$ x, ?( Q4 K' Gelongation, and the average values calculated.* g! ]7 x' M# `* j# Y, q
16.5.9.3 Three additional specimens shall be conditioned for 168 h in a circulating air oven at a# P* ~( A; u ~2 G8 ]8 v
temperature 20 °C above the maximum gasket or bushing temperature as determined by the normal& s" @, b3 O) e: v- X1 b5 Z. z
temperature test of Clause 14.
) V" K5 A i; O1 T$ a0 N16.5.9.4 After conditioning, the 3 specimens shall have an average tensile strength of not less than 60& Z8 h, x* m0 Z. G* J$ ~0 M
percent and an average elongation of not less than 75 percent of the values determined before
9 N; ?8 V8 ^& E) D+ a( `/ l0 }9 wconditioning.
% X! [4 e3 K5 B, @7 R# N6 n7 ?: f* z
谢谢！ ; z4 S( n6 T( Y7 W _: g7 P5 u
|
|
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2013-11-1 15:48
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡