Quality Problems of LSAW Steel Pipe

In the production process of LSAW steel pipe, heating operation is a very important process to solve the problem of product quality, because the main process is in the hot state.


According to the results, the furnace is divided into two kinds: the former is used to heat the billet from room temperature to processing temperature, and the latter is used to heat the billet. The latter is used to reheat the required processing temperature in the billet.


Heating errors may occur, and cracks, wrinkles and migraines may appear on the outside of the tube.


There are many ways to use the furnace, but the main purpose is the annular furnace. The furnace has an annular furnace, which can change the load slowly from the inlet along the direction of billet diameter. The opposite furnace can be used for heating and outlet water temperature. The operation is to heat the key blank evenly to the appropriate temperature for processing. Because of the great influence on the quality of piercing, that is to say, when the temperature of processing piercing is an important condition affecting the quality, it is usually necessary to operate the piercing temperature of the blank.