|
|
发表于 2008-10-5 21:04:32
|
显示全部楼层
来自: 中国天津
根据15614-1:2004 ISO+ |/ ]% j9 g+ _) V9 ?9 L9 J7 M
; |- x& U6 g- Z1 R/ e8.4.8 Heat Input; C* Z0 X& u& w! d1 s: y+ W
When impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding
5 Y) w$ K/ W8 ?! v" z& _; Vthe test piece.% A3 X' n0 J2 T5 u6 } q
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding
1 Y. i& a4 d! P7 v# m, `the test piece.
$ F {) `" |+ q8 |1 p7 XHeat input is calculated in accordance with EN 1011-1.
( V" K" ^6 Z6 G, v' ]* ^0 EIf welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat2 n4 y% D7 x- @( R
inputs are also qualified.
$ N# E' y$ U! Q* s: x
; }. G% Y; W3 W. ]' v7 L* d: n9 y, r {& t# p
8.4.8 热输入; a; V" c% s% Y& X7 O+ e
有冲击试验要求时,认可的热输入上限可比试件焊接使用的热输入大25%。
, l2 `6 V7 w# q; C8 L% n* [有硬度试验要求时,认可的热输入下限可比试件焊接使用的热输入小25%。( u# ^# c" _5 g w# b! A$ p
热输入的计算按照EN 1011-1。& T, H* S: W2 m
如果焊接工艺评定试验用高、低两个热输入进行,则其中间的所有热输入也适用。6 c9 r6 O1 u% V+ u) w" A
" ]3 Z7 d8 \* K- C* c[ 本帖最后由 bigwind 于 2008-10-5 21:07 编辑 ] |
评分
-
查看全部评分
|