| 摘要 |
PURPOSE:To form a flame pattern corresponding to the size of a skelp by changing the diameter of the burner tile of a burner in a heating furnace for a forge welded pipe according to the width of the skelp in such a way that the position of the skelp edge and the max. temp. point in the longitudinal direction of the flame coincide. CONSTITUTION:The diameter of a burner tile 2 having a circular section of the burner tile in a heating furnace for a forge welded pipe is constant in the axial direction of the tile 2. The diameter (d) thereof is changed according to the width of a skelp so that the position of the skelp edge and the max. temp. point in the longitudinal direction of the flame coincide. More specifically, the diameter (d) of the burner tile is kept at a max. value within the fluctuation range of the width of the skelp and the cylindrical burner tile having the outside diameter coinciding with said value and the inside diameter (d) selected according to the width of the skelp is charged in the furnace. |
