Reasons and solutions for the deviation of the angle of pipe tees during the manufacturing process

(1) The pipe tee is prone to angular offset, the surface is not flat, the diagonal of the nozzle is not equal, and the bite is not strict. The main reasons for this are:

1) The straight angle of the inner and outer arcs is not accurate. The thickness of the material itself is not considered. After the finished product is formed, the phenomenon that the outer arc piece is short and the inner arc piece is long is formed, which affects the angle.

2) Two planes with curved lines are ruled.

3) Small holes appear in the outer corner of the pipe tee outer arc.

4) The width of the joint angle bite is not equal, and the force at the bite is uneven.

(2) The main prevention methods are:

1) Find the material with a corrected square. The pipe tee is unfolded with the dimensions R1 and R2, and the width should be increased by the margin of the hem to prevent the pipe tee from being installed improperly. The lengths of the back and inside of the elbow are 1.57R1 and 1.57R2, respectively. The accuracy of the arc should be guaranteed.

2) After the two large pieces are unrolled, the ends of the sheets should be strictly angled. The two flat sheets with curvature are overlapped, and the shape coincidence error is checked and the deviation is allowed.

3) Small holes appearing in the outer arc corner of the pipe tee and can be repaired by soldering for the stainless steel plate.

4) When making a manual bite, make sure the width is appropriate, ensure the size of the tee, and ensure that the force is even when the mouth is bitten.