No matter how cool the quenching medium may be, if the heat inside a large piece cannot escape faster than a certain critical rate, there is a definite limit to the inside hardness.
无论淬火介质怎么冷，如果在大工件中的热量不能比特定的临界速率更快散发，那它内部硬度就会受到明确限制。
The method has considered the effect of difference in material hardness on the fatigue limit, which causes the shaft diameter design to become different depending on heat treatment difference.
该方法考虑了材料硬度对疲劳极限的影响，使半轴杆径设计随热处理方法不同而有所差异。
With no limit of viscosity, hardness, and fiber content of the material, it is functioned with air cooling, screen-free, etc.
具有风冷、无筛网等多种性能，它不受物料粘度、软硬度及纤维等限制，对任何物料能起到较好的粉碎效果。
However, its low hardness and poor wear resistance, as well as a tendency to corroding under the halide ion environment, limit its applications.
但是奥氏体不锈钢的硬度低、耐磨性差、摩擦系数大；在卤素离子环境下易被腐蚀等弱点限制了它的应用范围。
When hardness requirements apply, the lower limit of heat input qualified is 25 % lower than that used in welding the test piece.
当采用硬度要求时，适合的热输入的下限比试件焊接时使用的热输入低25%。
The upper limit of the range of the coating hardness used in the quality control in production can be determined according to the threshold in the specific work hardness curve.
对某类涂层随涂层硬度增加，刮削功上升并有一阈值，以此值可确定生产中检验硬度范围的上限。
The upper limit of the range of the coating hardness used in the quality control in production can be determined according to the threshold in the specific work hardness curve.
对某类涂层随涂层硬度增加，刮削功上升并有一阈值，以此值可确定生产中检验硬度范围的上限。
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