| 摘要 |
PROBLEM TO BE SOLVED: To provide an installing structure of a radiant tube for preventing leakage of combustion gas inside of the radiant tube in a heat treatment furnace. SOLUTION: An end part 11 of the radiant tube 1 is projected from a furnace wall 81, and a push ring 2, first packing 3, a first bracket 4, second packing 6, and a second bracket 7 are arranged on an outer peripheral surface 111 of the end part 11. The first packing 3 and the second packing 6 are compressed in the shaft direction, and are expanded in the radial direction to seal a part between the first bracket 4, the second bracket 7 and the outer peripheral surface 111 of the end part 11 of the radiant tube 1, and the end part 11 is installed on the furnace wall 81. COPYRIGHT: (C)2003,JPO
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