求翻译：SS400热轧带钢生产检验中出现表面开裂现象。本文叙述了SS400热轧带钢的生产工艺流程，,对有裂纹的SS400钢进行低倍、金相组织和夹杂物分析，结果表明：SS400热轧带钢表面开裂的主要原因是连铸板坯坯壳厚度不均匀，引起表面纵裂，轧钢过程中这样的裂纹不能被焊合，从而引起热轧带钢开裂。S、P元素偏析超标、钢中存在魏氏组织，也会引起SS400热轧带钢开裂，提出了避免产生表面裂纹的措施。是什么意思？

The ss400 hot strip production testing of surface cracking phenomenon. This paper describes the production process of of ss400 hot rolled strip, low magnification of the crack ss400 steel, microstructure and inclusion analysis results show that the: ss400 hot strip surface cracking of the main reaso

400 SS steel with steel production inspection, surface cracking occurs. This document describes the SS 400 steel with steel production process, and the cracks of the 400 SS steel for low times, microstructure and inclusions analysis, the results show that 400 SS steel with steel surface cracking as

SS400 cracking phenomena of hot-rolled steel strip surface inspection in the production. SS400 hot rolled strip production process is described in this article,, to low expansion crack of SS400 steel, metallographic organization and analysis of inclusions, results showed that the SS400 cracks on the