The results showed that the higher internal stress and serious carbide network in the banded carbide in the inner roll body were the main causes of heavy back-up roll stationary cracking.
结果表明，辊身心部较高的内应力和在带状碳化物中存在严重的网状碳化物是造成大型支承辊置裂的主要原因。
The principal problems with respect to roll working life are cracking at the surface of roll for hot-rolling and that effective zone of quench-hardening of roll for cold-rolling is too narrow.
热轧工作辊的裂纹损坏和冷轧工作辊有效淬硬层过浅是两大突出问题。
The defects in the cold rolling roll detected by ultrasonic flaw detector are mainly the cracking defects, the non-metallic inclusions plays an important role for producing the cracking defects.
冷轧辊坯超声波探伤超标的主要原因是裂纹性缺陷，非金属夹杂物对裂纹性缺陷的产生起到了重要的作用。
The defects in the cold rolling roll detected by ultrasonic flaw detector are mainly the cracking defects, the non-metallic inclusions plays an important role for producing the cracking defects.
冷轧辊坯超声波探伤超标的主要原因是裂纹性缺陷，非金属夹杂物对裂纹性缺陷的产生起到了重要的作用。
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