| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method for forming the lining layer of a nozzle refractory which is capable of reducing the temperature difference between heating areas, suppressing and preventing local cracks or separation, and adaptable to a complicated shape. <P>SOLUTION: Heaters 30 and 48 which have temperature-controllable heating units 31 and 49 and which have an external shape matching the surface shape of a lining layer 13 to be formed and are heated by electric resistance are disposed on the surface 12 of a nozzle refractory 11 to form a pre-formed base material via a space. Substantially anhydrous powder refractory containing raw refractory, low-temperature thermosetting resin and high-temperature thermosetting binder is filled in this space and heated by the heaters 30 and 48. The powder refractory is thus subjected to primary baking in a low-temperature region and further subjected to secondary baking in a high-temperature region to form the lining layer 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
