The main parts of the pump are generally made of grey cast iron and high - grade carbon steel , and can be used copper or stainless steel to meet the requirements of different medium 泵的主要材料为灰铸铁和优质碳钢,根据用户需要,可采用铜或不锈钢等材料进行制造。
With the orthogonal experiment method , the heat rolling processing parameters of the high - grade carbon steel ( 20 ) are established so as to realige the control and enhance the compositive mechanical property and cold crooked performance which advances the quality of the product 运用正交试验方法,确定优质碳素结构钢( 20 )钢板热轧工艺参数,以便实现控制,提高20钢板的综合机械性能和冷弯工艺性能,提高产品质量。
Abstract : with the orthogonal experiment method , the heat rolling processing parameters of the high - grade carbon steel ( 20 ) are established so as to realige the control and enhance the compositive mechanical property and cold crooked performance which advances the quality of the product 文摘:运用正交试验方法,确定优质碳素结构钢( 20 )钢板热轧工艺参数,以便实现控制,提高20钢板的综合机械性能和冷弯工艺性能,提高产品质量。