The improved design is increased in the fixed mold core, which change first parting into second parting and demould the inverted cone mandatorily.
该改进设计主要是在定模部分增加型芯，并将一次分型改成二次分型，再使倒锥部分实现强制脱模。
Linear deformation zone of generating wall can be obtained by means of non-linear cone Angle plug combined with the barrel-shaped rolls, so the wall accuracy can be increased greatly.
采用带有非线性顶头锥角的顶头与桶形辊相配合可以获得线性的成壁变形区，从而大大提高壁厚精度。
The cylindrical length of middle tube becomes increased with formed length, but the edge profile of the tube almost keep the same cone or bell shape.
管坯成形长度对制件形状的影响表现为成形长度增加，制件中部圆筒状长度也增加，而端口部均呈尺寸大致相同的锥形或喇叭形。
Meanwhile, the handle and the cone of the gear shaft will have increased loads on gear, sleeve and workpiece.
同时，手柄对齿轮和齿轮轴的锥体对锥套及工件都会产生增力的作用。
Meanwhile, the handle and the cone of the gear shaft will have increased loads on gear, sleeve and workpiece.
同时，手柄对齿轮和齿轮轴的锥体对锥套及工件都会产生增力的作用。
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