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对１根φ６１０ｍｍ×１７００ｍｍ冷轧辊加工中，用淬火后没及时回火，以致辊身中部断裂的情况进行了检查分析及力学推导，发现该轧辊断裂系轧辊内应力强度因子大于材料的平面应变断裂韧性所致。同时还对防止加工中轧辊的断裂提出了应注意的事项。
In a φ610mm × 1700mm cold roll processing, quenching did not promptly after tempering, so that the middle part of the barrel was broken and analyzed the mechanical analysis and found that the roll breakage of the roll stress intensity factor greater than the plane strain fracture Toughness due. At the same time also to prevent the processing of the roll breakage should be noted that matters.