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宝钢二高炉的建设是国家“七五”期间的重点建设工程,是冶金机械行业首次联合制造的重点项目,宝钢二高炉的制造标志着我国大型冶金设备由引进、合作制造发展到立足于国内制造的新阶段。国家要求,二号高炉的设备制造水平不能低于一号高炉,保证宝钢二号高炉设备制造质量的首要问题,是制订先进的技术标准。部颁标准《宝钢二高炉设备制造通用技术条件钴铬钨硬质合金堆焊通用技术条件》(YB3220.9—87)(以下简称“堆焊技术条件”)的编制,吸收了国内企业标准和工艺规范的先进部分,参照了日本焊接协
The construction of the second blast furnace of Baosteel is a key construction project during the “Seventh Five-Year Plan” period of the country and is the first joint manufacturing project of the metallurgical machinery industry. The manufacture of the second blast furnace of Baosteel marks the development of China’s large-scale metallurgical equipment from introduction and cooperation to manufacturing based on domestic manufacture The new stage. National requirements, the second blast furnace equipment manufacturing level can not be lower than the first blast furnace to ensure that the quality of Baosteel II blast furnace equipment manufacturing the primary problem is the development of advanced technical standards. The standards of the Ministry of Education of the People’s Republic of China (“Baosteel II General Technical Conditions for Fabrication of Blast Furnace Manufacturing Equipment General Technical Conditions for Cobalt Chromium Tungsten Carbide Surfacing”) (YB3220.9-87) (hereinafter referred to as “welding surfacing technical conditions”) have absorbed domestic enterprise standards and Advanced part of the process specification, with reference to Japan Welding Association