Control flange flatness and introversion degree

flange alignment tools used by the positioning device and the locking device consisting of a flange alignment to determine the positioning hole, flange heating has the following three
1. flange with flame varus correction using a linear heating methods. About the width of the linear heating should not be too large, and generally plate thickness of 0.5 to 2 times the depth of the heating plate is 1/2 to 2/3 plate thickness
2. Flame straightening barrel distortion and flange generally use dot heating manner during deformation. Spot focus point is heated at a heating, roasted torch circular motion, so as not to exceed the maximum temperature
3. Generally triangular linear heating and heating with a flame straightening  T type flange flatness