DEVELOPMENT AND APPLICATION OF HIGH STRENGTH TMCP PLATE FOR COAL MINING MACHINERY
Coal,as the most major energy in China,accounted for about 70%of China”s primary energy production and consumption.While the percentage of coal as the primary energy mix would drop in the future due to serious smog pollution partly resulted from coal-burning,the market demand of coal will maintain because the progressive process of urbanization.In order to improve productivity and simultaneously decrease safety accidents,fully-mechanized underground mining technology based on complete equipment of powered support,armored face conveyor,shearer,belt conveyor and road-header have obtained quick development in recent years,of which powered support made of high strength steel plate accounts for 65 percent of total equipment investment,so,the integrated mechanical properties,in particular strength level and weldability,have a significant effects on working service life and productivity.Take hydraulic powered supports as example,this paper places priority to introduce the latest development of high strength steel plates of Q550,Q690 and Q890,as well as metallurgical design conception and production cost-benefits analysis between QT plate and TMCP plate.Through production and application practice,TMCP or DQ plate demonstrate great economic advantages compared with traditional QT plate.
DQ (Direct quenching) QT (Quenching and Tempering) TMCP
Zhang Yongqing Guo Aimin Yao Liandeng
CITIC Metal Co.,Ltd,Room 1901 Capital Mansion,Beijing,China BAOSHAN IRON & STEEL Co.,LTD Research Institute,Shanghai,China
国内会议
杭州
英文
823-828
2015-11-11（万方平台首次上网日期，不代表论文的发表时间）