| 摘要 |
<p>The present invention provides an SN plate capable of increasing in size using a highly erosion-resistant, high thermal expansion, flame-resistant material. In this invention, erosion resistance is increased by adding aluminum, and a specific flame resistant material (1a) that has a thermal expansion rate at 1,500ºC of 1.15-2.50% is partially deposited so as to cover at least a critical usage part. The specific flame-resistant material (1a) has a thickness of 15-25 mm. Parts other than those where the specific flame-resistant material (1a) is deposited are formed from a non-fired heat-resistant material or a fired heat-resistant material, a primary component of which is alumina carbon.</p> |
