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本帖最后由 emperor620 于 2013-9-29 21:26 编辑
按照以往的理解,只需要对A和B类焊缝做产品冲击试板,但是在UG84(i)有如下规定:UG84(i)(1)In addition to the requirements of (h) above, impact tests of welds and heat affected zones shall be made in accordance with (g) above for each qualified welding procedure used on each vessel or group of vessels as defined in (3) below.
UG84(i)(2)Vessel (production) impact test plates shall be made for all joints for which impact tests are required for the welding procedure by UCS-67, UHT-82, or UHA-51
按照上面的意思应该就是凡是使用的工艺评定是经过冲击试验的接头都要有产品冲击试板,这明显要比GB150更严格。而在UG84(i)(3)只规定了A类和B类接头的试板数量,对于其他类别的接头的试板数量却没有规定。
如 A和B类接头采用的是SAW,而D类接头采用的SMAW,那这个D类接头要不要冲击试板,如要,试板如何制作?试板数量是多少?是不是每一个D类接头都要有冲击试板?
又假如D类接头的工艺与A类接头一致,是否还需要有产品冲击试板? 这有太多疑问了,还望大侠们能够解答!
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