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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
! E. B8 F) s" j4 H; m5 K' O: g6 G2 f n) Z! N B
8.4.8 Heat Input( e9 d9 u7 p( j$ p
When impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding
+ U! |- D3 r2 S6 lthe test piece.* ^1 ]4 E- q$ |6 `
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding
) t, w" ^5 W _4 Zthe test piece.. S; ^4 V& A' S2 h7 o* m& N1 z
Heat input is calculated in accordance with EN 1011-1.; v. ?1 b) C3 K2 U! B \( ^6 n
If welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat3 w' [ W4 r. B1 [# P& n
inputs are also qualified.' X. |" ^& A% O: l/ K$ S
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/ R+ F S" y' H+ Q4 |! S; H# j8.4.8 热输入
% z( A& H5 E2 V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%。1 @2 K/ l' F& V" |
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%。
9 n' r! H0 _! P7 T& K热输入的计算按照EN 1011-1。& k+ w M; V! p5 c5 T0 f/ U
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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! ]- L, O# u* g[ 本帖最后由 bigwind 于 2008-10-5 21:07 编辑 ] |
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