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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
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( e4 K5 i8 c2 J( e' E8.4.8 Heat Input
9 Z' N( W: E D! ?( ]When impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding- @3 F, P+ {- }0 S! |
the test piece.: D. D3 D {- p7 t
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding4 g3 D3 t9 M" B$ }# i: U2 i
the test piece.4 {; n9 Z% x6 B
Heat input is calculated in accordance with EN 1011-1.
. _; W2 K2 p. a5 eIf welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat
) |2 ` ]# R, G- @5 M1 l' N& p; Hinputs are also qualified.# s6 N, Z8 }- }" }
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, y! s# P( }! [( x+ `, `8.4.8 热输入
( x. H! P1 @% K0 \/ L4 C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%。
: R: R: Y# E- R4 Z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%。
' h' l* l! j6 T! {3 e3 ^ e6 Y热输入的计算按照EN 1011-1。7 N# l* _( c" ?: R j: b
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。
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[ 本帖最后由 bigwind 于 2008-10-5 21:07 编辑 ] |
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