Welded pipe

1. It is suggested that TIG welding be used to make a rotary fixture with adjustable rotation speed, which will be completed together with positioning. It is best to process the steps of the joint, and then melt it directly with TIG (without filling wire), which can realize high-speed welding and look good.

2. The pressure 1.7MPa and the penetration depth need to be controlled: too deep is easy to melt through, and too deep is afraid of being unable to withstand the pressure; In addition, the manual welding of pipe wall thickness 1.5 and 2.0 should be difficult to control evenly, and semi-automatic tooling is better. It doesn't need to be too complicated, as long as it can rotate at variable speed. In addition, the welding gun can be fixed and finely adjusted, and it can be controlled by others or manually.

I have done a welding system for solenoid valve spool before, which is very similar to yours.

/product/faxing.pdf

It's not that complicated. It's cheaper to simplify it.