摘要
随着特大采高、特大工作阻力液压支架的发展,对结构轻质化的要求日益迫切,对易焊接高强材料的需求越来越高。新制定的能源(NB)行业标准《煤矿液压支架用易焊接高强度钢板》和《煤矿液压支架用无缝钢管》规定了相关的技术要求,促进液压支架用易焊接高强度钢板和无缝钢管的发展和质量保证。
With the development of special high and special big load capacity powered support, for decreasing weight,the requirement to free-welding high-strength steel is high and high. The specification is regulated in ＂High strength steel plates with good weldability for powered support in coal mine＂ and ＂Seamless steel tubes for powered support in coal mine＂, to promote the development and quality assurance of free-welding high-strength steel plat and seamless steel pipe.
出处
《煤矿机械》
2015年第7期3-6,共4页
Coal Mine Machinery
关键词
液压支架
易焊接高强度钢板
无缝钢管
标准
powered support
free-welding high-strength steel plat
seamless steel pipe
standard
