| 摘要 |
<p>The present invention provides a preformed trough liner (42) generally of a graphite or carbon and carbon filament combination for a casting operation, which may be a centrifugal casting operation, which liner may be a single formed component or may be a plurality of segments cooperating to provide a predetermined length and shape of a trough and channel, and the preformed liner may be secured by various means (46,49,53,59,61) to maintain it within the trough housing. <IMAGE></p> |
