Developed excogitates of two decumbence and one hovizoutal molding die realized increasing heightof branch pipe of heat pressure tee and reducing radius of synodical arc of tee.
Regarding to submerged arc weld multi-pass weld track and heightof weld gun, two-dimension track system is designed.
针对埋弧焊多道焊的焊缝跟踪以及焊枪高度跟踪问题，设计了一种二维跟踪系统。
3
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.