| 摘要 |
PURPOSE: To enable the inexpensive and easy production of a refractory body assembly and to effective protect the refractory body against vibration and impact. CONSTITUTION: The refractory body assembly includes a refractory container 12 and the refractory body 14 having various gas passages 22. The refractory body 14 is housed in the refractory container 12. A spacing is placed between these two. The intermediate space 20 is filled with a barrier layer 16 perforated at site at a temp. not exceeding about 1000 deg.C. |
