| 摘要 |
PROBLEM TO BE SOLVED: To enable cutting in the clean state without sticking spatters, etc., on the inside of a tube during cutting with heat cutting beam. SOLUTION: This is a heat cutting device to cut a tube W by irradiating the tube W to be cut with a heat cutting beam from a heat cutting head 19. Then, a spatter sticking preventing member 27 being extended to the longitudinal direction of the tube W is installed inside the tube W, and it is supported by a support member without touching to the internal face of the tube W, the spatter sticking preventing member is composed of a tube 29, a groove is formed along the longitudinal direction on the upper face of this tube 29, plural numbers of holes are formed on the external circumference of a tube and the fluid is sucked or jetted from one end side of these tubes. |
