检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:范铮[1]
机构地区:[1]上海锅炉厂有限公司
出 处:《锅炉技术》1999年第2期25-32,共8页Boiler Technology
摘 要:介绍ASME规范第Ⅱ卷《焊条、焊丝及填充金属》1995版至1998版变动情况。三年来,有SFA5.5、5.6、5.7、5.20、5.22、5.27、5.28全面修改,A5.27是删去,其余均为换版。分述了各技术条件版情况,体现出随技术进步和发展,这些标准都有较多补充的相关凋整。鉴于我国焊材标准已转向参照AWSA5.XX焊材标准,故其变动值得我国焊材制造和使用方面的重视。This paper introduces the revision of Sec. II 'Welding rods, Electrodes, Filler metals' from 1995 Edition to 1998 Edition. For three years, SFA 5.5,5.6,5.7,5.20,5.22,5.27,5.28 has been revised completely, in which A5. 27 deleted, the others revised. Technical specification of revised edition shows, with the technical progress and development, all these rules have been made more supplement and relative adjustment. In view of AWS A5.XX welding material standard being referred to in China, attention shall be paid to these revised value in the field of welding material manufacture and usage.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.233