在以圆弧代替渐开线的基础上，导出了蜗轮齿侧棱面高度及数目的计算方法及影响他们的因素。
Based on the arc substituting involute, the paper introduces a method for calculating the height and number of prisms in worm gear surface as well as the factors effecting them.
采用广义牛顿粘度公式，得到了振动力场作用下的异向双螺杆挤出机螺棱侧间隙内的速度分布近似解析解。
The approximate analytical solution of the velocity distribution in the side gap of the counter-rotating twin screw extruder is obtained by means of the generalized Newtonian viscosity.
通体呈四瓣瓜棱形，肩部一侧置短流，另一侧置曲柄，与流、柄成十字形的颈、肩之间置双系。
Quintana was four melon prism, set the side of the shoulder short flow, the other side of the crank set, and flow into the handle cross-shaped neck, between the shoulder rear dual system.
计算结果表明，在靠近结合界面的Q 235钢一侧的工件棱边处产生最大轴向应力，这是导致接头开裂的重要因素。
The results indicated that the largest stress appeared on the edge of Q235 near the interface. This is the key factor inducing crack.
结果表明，牙顶处金属材料受到丝锥棱齿的压力相对较小，并且金属流向牙顶两侧上方的区域时受到的阻力最小；
Through metallographic analysis of the material, microstructure change and deformation mechanism of crest, flank and root of the thread along the layer depth direction were obtained.
结果表明，牙顶处金属材料受到丝锥棱齿的压力相对较小，并且金属流向牙顶两侧上方的区域时受到的阻力最小；
Through metallographic analysis of the material, microstructure change and deformation mechanism of crest, flank and root of the thread along the layer depth direction were obtained.
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