The tensile strength, zinc coat mass and service life of die of galvanized steel wire after drawing are compared on the condition of different work cone angle.
在不同的工作锥角度下，比较镀锌钢丝拉拔后的抗拉强度、锌层质量、模子寿命。
2
The results show that the extrusion quality of even die, conedie and pre protection die are better, but that of the replace die is worse.
挤压结果表明：平模、锥模和前置保护分流模成型质量较好，而替代式保护分流模挤压失败；
3
In patients with RP, rod photoreceptors die from a mutation, but it has not been known why cone photoreceptors die.