Experimental Research on Micro-pit Defects of SUS 430 Stainless Steel Strip in Cold Rolling Process
In order to improve surface glossiness of stainless steel strip in tandem cold rolling,experimental research on micro-pit defects of SUS 430 ferrite stainless steel was investigated in laboratory.The surface morphology of micro-pit defects was observed by SEM.The effects of micro-pit defects on rolling reduction,roll surface roughness and emulsion parameters were analyzed.With the pass number increasing,the quantity and surface of micro-pit defects were reduced,uneven peak was decreased and gently along rolling direction,micro-pit defects had equally distributed tendency along tranverse direction.The micro-pit defects were increased with the roll surface roughness increase.The defects ratio was declined with larger gradient at pass number 1 to 3,but gentle slope at pass number 4 to 5.The effects of temperature 55℃ and 63℃,concentration 3% and 6% of emulsion on micro-pit effects had not obvious difference.Maintain of micro-pit was effected by rolling oil or air in the micro-pit,the quality of oil was much more than the air in the micro-pit in lubrication rolling.
Stainless Steel Surface Micro-pit Defects Lubrication Roll Surface Roughness
Changsheng Li Miao Li Tao Zhu Gang Huo
State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China State Key Laboratory of Fine Chemicals,Dalian University of Technology,Dalian 116024,P.R.China State Key Laboratory of Rolling and Automation,Northeastern University,Shenyang 110819,China;Pohang
国际会议
沈阳
英文
780-784
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）