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发表于 2008-10-5 21:04:32
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来自: 中国天津
根据15614-1:2004 ISO/ u: B! P5 M; |4 ]. t5 W
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8.4.8 Heat Input
4 e: d6 G% ^6 X: m- }4 g' LWhen impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding
( x- b% R0 E" e$ j6 f" y9 ?the test piece.
2 W5 J& u6 @( sWhen hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding
& \6 P6 H1 C+ ]6 y" uthe test piece./ r+ v& G! ]/ c; S* t
Heat input is calculated in accordance with EN 1011-1.
- D" n5 a$ q: }4 f( q, wIf welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat
9 B2 P l4 I% C! Q7 e) k$ Ainputs are also qualified.3 y8 B4 B9 C) ~' o ?8 h$ ^: V0 k& X
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3 H9 F t* e# e, ]0 P* T; @1 |8 O8.4.8 热输入
& g- ]5 B; m( H& h; i2 F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%。) Z, T, n. E/ r/ R& A( i! n( L% l
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%。$ A# a1 G i7 ]$ F* ^ F0 O
热输入的计算按照EN 1011-1。7 {: Z3 Z- o5 N3 q* \- T
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 R' W) |% f4 ^/ O
M( m# m, X6 i+ q4 q[ 本帖最后由 bigwind 于 2008-10-5 21:07 编辑 ] |
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