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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 ISO5 g A6 c! t: f' F: N
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8.4.8 Heat Input
: {) W! }* R) a6 rWhen impact requirements apply, the upper limit of heat input qualified is 25 % greater than that used in welding
' o0 I: b3 H6 R* qthe test piece.. Q( f, M# j7 A6 U$ R: L0 X
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding6 v) ]% z( c' d& N
the test piece. P0 ]; `* C0 i7 m1 H, o6 G
Heat input is calculated in accordance with EN 1011-1.
: p7 C+ [; H8 [- KIf welding procedure tests have been performed at both a high and a low heat input level, then all intermediate heat0 O; M' G8 k: f
inputs are also qualified.
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9 ]7 v& `1 K& i& g5 s; a' w8.4.8 热输入7 F% _( G5 b' @0 S+ e X2 `; B
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%。
/ f8 E% M4 \& P7 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%。
+ R o* x0 v9 l/ k6 ^- _热输入的计算按照EN 1011-1。' i) d" p4 u+ z; _1 R8 Q
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。9 d8 z. Z. {8 K* F# q
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[ 本帖最后由 bigwind 于 2008-10-5 21:07 编辑 ] |
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