其中滚动接触剥离和制动剥离是两种主要剥离类型，滚动接触应力、制动热作用、热裂纹和机械作用是引起剥离的主要原因。
In the mean time, rolling contact stress, braking heat energy, thermal crack and mechanical action are key causes of tread spalling.
热应力裂纹的启动没有利用机械力。
The thermal stress cracking is initiated without the use of mechanical force.
模具破裂或产生裂纹是由于机械疲劳，并且是在模具过载和局部应力高等情况下发生的。
Die breakage or cracking is due to mechanical fatigue and occurs in cases where the dies are overloaded and local stresses are high.
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