|Fault condition||Failure causes and eliminating methods|
|Diameter is too large, the diameter is too small||1, the main axis of the position adjustment is too far;
2, rolling time is too short;
3, rolling pressure is too low.
|Diameter is too large, diameter qualified||Blank diameter is too large|
|Diameter is qualified, outside diameter is too small||Blank diameter is too small|
|Diameter is qualified, outside diameter is too large||Blank diameter is too large|
|Diameter is too small, outside diameter is too large||1, the center of the spindle is too small;
2, rolling time is too long;
3, rolling pressure is too high.
|No taper in the middle diameter, outside diameter of taper||Blank with taper|
|Middle diameter taper||Two the parallel adjustment of the rolling wheel is not good, so the adjustment should be carried out.|