| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat treatment vessel excellent in thermal shock resistance.SOLUTION: There is provided a tank-like heat treatment vessel which has a plate-like bottom part and an erected plate-like wall part formed over the entire periphery of the bottom part and is formed by firing a mixed powder having 5 to 45% of an alumina powder, 0 to 35% of a mullite powder, 5 to 15% of a cordierite powder and 10 to 55% of a spinel powder, when the total mass is defined as 100%. |
