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【本刊讯】冶金工业部于1977年9月17日～9月22日在贵阳钢铁厂召开了全国钎钢会议。会上研究了如何全面落实华主席、党中央抓纲治国的战略决策,进一步落实钎钢生产任务,组织钎钢生产厂之间的社会主义劳动竞赛,尽快扭转进口中空钢的被动局面。钎钢有实心钎钢、中空钎钢、成品钎杆等。实心钎钢主要用于手工凿岩;中空钎钢主要用于机械凿岩。中空钎钢经锻或机械加工、热处理、表面强化、防腐处理等工序,制成成品钎杆。通常有大钎杆(D32用于深孔凿岩),小钎杆(22六角和25六角钎杆用于浅孔凿岩),其中小钎杆使用量最多,约占70～80％。
[Journal] Metallurgical Ministry of Industry in September 17, 1977 ~ September 22 at Guiyang Iron and Steel Plant held a national brazing steel conference. At the meeting, I studied how to fully implement Chairman Hua and the Party Central Committee’s strategic policy of grasping the country with the state power, further implement the task of producing steel and cement, and organize the socialist labor competition among the steel-making factories to reverse the passive situation of imported hollow steel as soon as possible. Brazing steel has a solid brazing steel, hollow brazing steel, finished rod and other products. Solid brazing steel is mainly used for manual rock drilling; hollow brazing steel is mainly used for mechanical rock drilling. Hollow brazing steel forging or machining, heat treatment, surface hardening, anti-corrosion treatment processes, made of finished rod. There are usually large drill rods (D32 for deep hole drilling), small drill rods (22 hex and 25 hexagonal drill rods for shallow hole drilling), of which the largest use of small drill rods, accounting for about 70 to 80%.