上海柴油机厂在一座六抛头双行程悬挂链抛丸室内,采用特种耐磨材料碳化物球化白口铁作室内护板,取得良好的经济效益。该抛丸室每天两班制作业,过去采用16～40mm厚钢板作室内护板,除日常保养外,每年要小修4～6次,两年要停产一个月大修。1983年大修时,该厂选用碳化物球化白口铁(系用SG变质剂孕育处理制得,山东诸城县合金 Shanghai Diesel Engine Factory in a six throwing two-stroke chain hanging shot blasting room, the use of special wear-resistant carbide ball white iron for the interior guard, and achieved good economic returns. The blast room two shifts daily production, the past used 16 ~ 40mm thick steel plate for the interior, in addition to routine maintenance, minor repairs 4 to 6 times a year, two years to stop production for a month overhaul. When overhauling in 1983, the plant used carbide ball white iron (Department of gestation with SG modifier obtained, Shandong Zhucheng alloy