利用上界法推导了冷拔内螺旋凸筋管拔制力计算式。
The formulas of drawing force for spiral internal-ribbed pipe cold-drawing are derived with upperbound method.
该中巢的内孔壁上设有限拉凸筋，张力弹簧抵靠该凸筋的下端。
The inner hole wall of the middle nest is provided with a draw limiting convex rib, and the tension spring contacts the lower end of the convex rib.
理论分析数控椭圆滚压成型时工作台的运动方程，实现成型件无凸筋滚压；
The motion equation of the worktable of the NC ellipse rolling is established , so no-rib rolling is realized.
利用灯箱布的凸筋和凹区保证微穿孔不受压变形，保持其良好的吸声性；
The deformation of the micro-holes can be obviated by arranging ribs and concave regions on the lamp-box fabric so as to keep good sound absorption performance.
利用多元线性回归建立了冷拔外螺纹铜管凸筋高度与坯料壁厚之间的经验关系式。
The experience relationship between fin-height and rough tube wall-thickness for cold-drawn outer-spiral-fin tube is established with many-membered Iinear regression in this paper.
同轴电缆布线卡其主夹板内设置有数只副夹板构成的多只卡槽，卡槽边设置有凸筋。
The utility model relates to a coaxial cable wiring clamp. A plurality of clamp grooves composed of a plurality of auxiliary clamping plates are arranged in a main clamping plate of the utility model.
利用能量法可以推导出纵凸筋钢板轧制力的计算式，并对纵凸筋钢板轧制力进行了计算。
Based on energy method, a calculating formula of roll force to longitudinally ribbed strips was derived.
实验表明，理论计算值与实测值较吻合，可为冷拔内螺旋凸筋管的拔制设备选型提供理论依据。
The experiment result shows that the theoretical values are close to those measured, which provides a theoretical basis for internal-ribbed pipe cold-drawing equipment type selecting.
由底盘、带有工字型凸筋轨迹槽和对称的圆形凸筋轨迹槽以及一对按摩球构成的脚部滚踏按摩器。
The feet can make any massaging movement in any form along any direction on the foot pedal rolling massaging device. The user can also simultaneously use the balls to massage matching with palms.
该关系式可对外螺纹铜管凸筋高度进行预测与控制，对外螺纹铜管冷拔工艺的制订具有参考价值。
This relationship can be used to forecast and control the fin-height of the outer-spiral-fin tube, and it has referenced value for the working-out of the technics for cold-drawn outer-spiral-fin tube.
研究表明不同可控拉深筋路径对盒形件侧壁和凹模圆角部位的应变路径影响不大，而对凸模圆角处的影响较为显著。
The results show that the different CD moving paths have little effect on the strain paths of box sidewall and die corner, which have significant effect on punch corner.
筋板、凸台部分或薄壁处为防止冷隔，要提高铝液流动性。模温应相对提高。
The number of stiffened plate, convex platform part or to prevent cold-lap thin-walled place, must improve liquid aluminum liquidity. Mould temperature should be relative improve.
筋板、凸台部分或薄壁处为防止冷隔，要提高铝液流动性。模温应相对提高。
The number of stiffened plate, convex platform part or to prevent cold-lap thin-walled place, must improve liquid aluminum liquidity. Mould temperature should be relative improve.
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