To achieve air-tightness in a furnace by spacers, and to avoid damage to a furnace body and a carriage since the spacers are elastically transformed and the carriage is prevented from strongly pressing the furnace body.
This batch furnace 22 includes the furnace body 24 and the carriage 26. The furnace body 24 includes a depth wall 30. The depth wall 30 is composed of firebricks. The carriage 26 includes a case 36, wheels 40 and a main section 42. The main section 42 is composed of firebricks. The main section 42 configures a hearth of a furnace chamber. Steel ingot 34 as an object of soaking treatment is placed on the main section 42. A first spacer 54 is fixed to the carriage 26. The first spacer 54 is composed of ceramic fiber. A number of ceramic fibers are entwined with one another in clumps. Three sheets of second spacers 58 are fixed to the depth wall 30. The second spacers 58 are composed of a material the same as that of the first spacer 54.
SAKAMOTO AKIRA
| JPH0673697U | 1994-10-18 | |||
| JPH02143092A | 1990-06-01 | |||
| JP2008261619A | 2008-10-30 | |||
| JP2010133651A | 2010-06-17 |
Sumitomo Norio
Kuroyoshi Murohashi