【摘要】 建立了几何拓扑模型和热应力拓扑模型,从这2种拓扑模型的结构、形状和对称性、特别是多次对称轴之间的关系,深入分析了角端、边缘、表层、内部4种淬火模型以及淬火角端效应和动态薄膜效应之间的内在联系,并指出了各种具体的工业实际应用。淬火过程中,热力学拓扑模型的对称轴(特别是n次对称轴)将以变化的θ角围绕几何拓扑模型的对称轴(特别是n次对称轴)不停转动,θ的大小由几何拓扑模型和动态薄膜共同决定,θ=0°或θ很小时,是理想状态层状分布热应力,θ较大甚至接近90°时,发生淬火角端效应和淬火动态薄膜效应。并且热力学拓扑模型的对称轴(特别是n次对称轴)指向的表面出现拉应力,和该轴成垂直方向的表面出现压应力。更多还原

【Abstract】 Topology model of geometry and thermal stresses during quenching have been proposed and much attention was paid to the geometrical symmetry axis to establish the thermal stress models for corner, boundary, surface and center during quenching. The relationship between the corner effect and the dynamic film effect was also analyzed using this model. And the prospect of technological application was also put forward in this paper. In the course of quenching, the symmetry axis of topology model of thermal stresses, especially n times symmetry axis, rotates around the symmetry axis of topology model of geometry to go by θ angle, that is decided by the topology model of geometry and dynamic film. The ideal thermal stress layers will appear if the θ angle is slight and lesser. The corner effect and the dynamic film effect will appear if the θ angle is large and even nearly right angle. Tension stress will appear on the surface, to which the symmetry axis pointed from the topology model of thermal stresses, and compression stress will appear on the surface perpendicular to the axis.更多还原