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2019-06-19View Original

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user pérdida de señal
Reply #22019-06-20
2
Reply #32019-06-20
user
Reply #42019-06-20
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Reply #52019-06-21
我的意思是,标准上说不锈钢管配不锈钢卡套,但是比方说管子是304,那卡套也是304吗,还是要硬一点的马氏体不锈钢,比方说20Cr13什么的。
Reply #62019-06-21
个人觉得304管子 就配304卡套接头 也可配更好的
Reply #72019-07-07
卡套管应为退火态的不锈钢管,硬度小于等于HB95。单卡套制作的原材料应为正常的管料,硬度一般低于HRC22。加工成型后进行硬化,硬化的硬度一般要达到维氏硬度计800左右。也有厂家用硬度在HRC25-28的不锈钢管直接加工单卡套,但是存在很大风险,压力高的场合下,卡套会直接脱掉。
Reply #82020-03-08
单卡套还是双卡套?理论上来说卡套接头的硬度高于管子的硬度即可。提供几个卡套接头配管的标准供你参考:
Reply #92020-03-08
ASTM A269:通用无缝和焊接奥氏体不锈钢管(Tube)【备注:内径大于等于1/4"(6.35mm),壁厚大于等于0.02"(0.51mm)】 ASTM A213:锅炉、过热器和换热器用无缝铁素体和奥氏体合金钢管(Tube) ASTM A312:无缝、焊接和深度冷加工奥氏体不锈钢管(Pipe)【备注:规定了材料、热处理、尺寸(参考ASMEB36.19M 包括承压计算)】

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