QW-404.12 A change in the filler metal classification within an SFA specification, or for a filler metal not covered by an SFA specification or a filler metal with a “G” suffix within an SFA specifi-cation, a change in the trade designation of the filler metal.
在同-SFA 标准中填充金属类别号的改变或改变到SFA 标准不包括的填充金属或改变到SFA 标准中带有后缀"G" 的填充金属或填充金属商品名称的改变。
1. 以GTAW 为例(补充重要变素),有冲击时Classfication 变更则需要重新评定,如ER308L变为ER308Lsi 则需要重新评定,这样理解是否正确?
2. 以GTAW 为例(补充重要变素),有冲击时trade designation 变更则需要重新评定,如ESAB OK TIGROD 12.61 和ESAB OK TIGROD 12.64虽同属ER70S-6,12.61变为12.64则需要重新评定,这样立即是否正确?
When a filler metal conforms to a filler metal classification, within an SFA speci-fication, except for the “G” suffix classification, requalification is not required if a change is made in any of the following: 当填充金属符合某一SFA 标准(但有后缀"G" 的除外) ,则在下述范围内的改变不要求重评:
(a) from a filler metal that is designated as moisture-resistant to one that is not des-ignated as moisture-resistant and vice versa (i.e., from E7018R to E7018) 从一个标明为防潮的填充金属变为另一个不标明防潮的填充金属,反之亦然(如从E7018R到E7018)。
(b) from one diffusible hydrogen level to another (i.e., from E7018-H8 to E7018-H16) 从一个扩散氢等级变到另一个扩散氢等级(如从E7018-H8 到E7018-H16 )。
(c) for carbon, low alloy, and stainless steel filler metals having the same mini-mum tensile strength and the same nominal chemical composition, a change from one low hydrogen coat-ing type to another low hydrogen coating type (i.e., a change among EXX15, 16, or 18 or EXXX15, 16, or 17 classifications) 对于有相同的最小抗拉强度和相同的公称化学成分的碳钢、低合金钢或不锈钢填充金属,从一种低氢型涂料改变为另一种低氢型涂料(如在EXX15、16、18或EXXX15、16、17之间变化)。
(d) from one position-usability designation to another for flux-cored electrodes (i.e., a change from E70T-1 to E71T-1 or vice versa) 对于药芯焊丝,从一种指定的适用位置变到另一种(E70T-1到E71T-1或反之亦然)。
(e) from a classification that requires impact testing to the same classification which has a suffix which indicates that impact testing was performed at a lower temperature or exhibited greater toughness at the required temperature or both, as compared to the classification which was used during procedure qualification (i.e., a change from E7018 to E7018-1)
与从前在工艺评定期间使用过的焊条相比较,从一种要求冲击试验的类别号改变为另一种相同类别号,有尾缀表明冲击试验在更低的温度或在要求的温度有更高的韧性或两者兼而有之(如从E7018变为E7018-1)。
这段话如何理解?能否理解为与PQR同一组别中的 '冲击性能更好' 的焊材 替代 'PQR中的焊材',无需重新评定?
(f) from the classification qualified to another filler metal within the same SFA specification when the weld metal is exempt from Impact Testing by other Sections 当其他卷免除焊缝金属的冲击试验时,在同一SFA标准中,评定的填充金属类别号改变为另一类别号时。
这段话如何更好的理解?能举个例子吗。
This exemption does not apply to hard-facing and corrosion-resistant overlays 本免除不适用于表面加硬层和耐蚀层堆焊。
(f) from the classification qualified to another filler metal within the same SFA specification when the weld metal is exempt from Impact Testing by other Sections 当其他卷免除焊缝金属的冲击试验时,在同一SFA标准中,评定的填充金属类别号改变为另一类别号时。
这段话如何更好的理解?能举个例子吗。 比如采用镍基焊材时
(f) from the classification qualified to another filler metal within the same SFA specification when the weld metal is exempt from Impact Testing by other Sections 当其他卷免除焊缝金属的冲击试验时,在同一SFA标准中,评定的填充金属类别号改变为另一类别号时。
这段话如何更好的理解?能举个例子吗。 比如采用镍基焊材时
from the classification qualified to another filler metal within the same SFA specification when the weld metal is exempt from Impact Testing by other Sections 当其他卷免除焊缝金属的冲击试验时,在同一SFA标准中,评定的填充金属类别号改变为另一类别号时。
这段话如何更好的理解?能举个例子吗。
Answer: 比如采用镍基焊材时
Q: 例子能否详细些