理化检验-物理分册
理化檢驗-物理分冊
이화검험-물리분책
Physical Testing and Chemical Analysis Part A:Physical Testing
2015年
10期
679-683
,共5页
冯庆%于辉%刘波%李栋%刘帅帅
馮慶%于輝%劉波%李棟%劉帥帥
풍경%우휘%류파%리동%류수수
连铸坯%表面缺陷%连轧钢管%表面质量
連鑄坯%錶麵缺陷%連軋鋼管%錶麵質量
련주배%표면결함%련알강관%표면질량
continuous casting billet%surface defect%continuous rolling steel pipe%surface quality
针对连轧钢管产品外表面存在的缺陷问题,结合两套产品轧制工艺,分别采取在坯料外表面人工刻伤和保留坯料外表面原始缺陷的方式,研究了坯料缺陷和轧制后产品缺陷的对应关系,通过金相分析研究了坯料缺陷对钢管外表面质量的影响。结果表明:连铸坯表面的缺陷一定会在轧管后的钢管外表面有所反映。最后探讨了避免存在原始外表面缺陷的坯料进入后续工序的措施,以提高连轧机组的一次产品合格率。
針對連軋鋼管產品外錶麵存在的缺陷問題,結閤兩套產品軋製工藝,分彆採取在坯料外錶麵人工刻傷和保留坯料外錶麵原始缺陷的方式,研究瞭坯料缺陷和軋製後產品缺陷的對應關繫,通過金相分析研究瞭坯料缺陷對鋼管外錶麵質量的影響。結果錶明:連鑄坯錶麵的缺陷一定會在軋管後的鋼管外錶麵有所反映。最後探討瞭避免存在原始外錶麵缺陷的坯料進入後續工序的措施,以提高連軋機組的一次產品閤格率。
침대련알강관산품외표면존재적결함문제,결합량투산품알제공예,분별채취재배료외표면인공각상화보류배료외표면원시결함적방식,연구료배료결함화알제후산품결함적대응관계,통과금상분석연구료배료결함대강관외표면질량적영향。결과표명:련주배표면적결함일정회재알관후적강관외표면유소반영。최후탐토료피면존재원시외표면결함적배료진입후속공서적조시,이제고련알궤조적일차산품합격솔。
Aimed to the defect problem on the surface of continuous rolling steel pipes,combining two rolling processes,the corresponding relationship between the billet defects and the finished product defects was researched by means of artificial wounding or keeping original defects of the billet surface,and how the billet defects influencing the surface quality of steel pipes was researched by metallographic analysis.The results show that the defects on the surface of continous casting billets will be reflected on the surface of the rolled steel pipes.Finally measures for avoiding defective billets entering into the later process in order to improve qualification rate of continuous rolling mills were discussed.