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发表于 2013-1-15 22:34:26
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1)首先要说明在 ASME BPVC Section II,Part A,SA-451 to End (2011a Addenda) 中并没有您说的 SA519-60 的材料,估
计应该是 SA-516 Gr. 60 吧。
2)封头是否要带试板?
Interpretation: VIII-1-89-69 Interpretation No. 25
Subject: Section VIII Division 1, UCS-85
Date Issued: February 15, 1989
Fille: BC 88-193
Question (1): If plates that have been normalized, and qualified on the basis of test specimens taken the from plates
after normalizing, are subsequenty heated to equivalent temperatures above the lower transformation temperature during
hot forming, are additional test specimens representative of the second thermal cycle required by UCS 85?
Reply (1): No, provided all other requirements of UCS-85 are met.
Question (2): If plates supplied in the as-rolled condition with qualification based upon simulated normalizing of test
coupons are heated for forming to a temperature within are reasonable tolerance of that used to qualify the test coupoons,
are additional test coupons required?
Reply (2): No, provided all other requirements of UCS-85 are met.
由此可见:材料正火状态供货 质量保证书上提供正火状态力学性能 不需要试板
材料轧制状态供货 质量保证书上提供模拟正火状态力学性能 不需要试板
材料轧制状态供货 质量保证书上提供轧制状态力学性能 需要试板做正火状态力学性能
3)封头厚度为 44 mm,筒体厚度与封头等厚,该台 ASME 产品应该要进行焊后热处理,封头和筒体材料都应该有模拟焊后热
处理(焊后热处理温度和保温时间按该台 ASME 产品的制造工艺)后的力学性能。如果设计工程师判断要做冲击试验,则应
该带随炉产品试板。
4)关于试样形状和尺寸:符合 SA-370 中的圆形或矩形截面试样均可,只要力学试验室的试验机载荷满足要求就可以了。
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