| 摘要 |
PROBLEM TO BE SOLVED: To provide a dipping tube capable of suppressing cracking of refractory materials. SOLUTION: The dipping tube 4 includes a cylindrical core tube 40 made of a heat-resistant metal and refractory materials 42 and 43 located inside and outside the core tube 40, respectively. Molten metal flows through the dipping tube 4. Thermal insulation mortar 41 is placed between the core tube 40 and the refractory materials 42 and 43. COPYRIGHT: (C)2010,JPO&INPIT |
