A technology to form copper long-branchtee pipe directly in compound forming of bulging and extrusion is developed, the formula and calculation of the forming force are introduced.
Developed excogitates of two decumbence and one horizontal molding die realized the increasing height of branch pipe of heat pressure tee.
研发出了两个横梁和一个水平成型模具，实现了热压三通支管高度的增加。
3
Developed excogitates of two decumbence and one hovizoutal molding die realized increasing height of branch pipe of heat pressure tee and reducing radius of synodical arc of tee.