WELDING APPARATUS INCLUDING CRUCIBLES

Brand	Owner	Address	Description
CADWELD	Erico International Corporation	31700 Solon Road Solon OH 44139	Welding Apparatus Including Crucibles, Molds, and Supporting Handles and Frames for the Welding of Metal Parts by Means of Molten Metal Produced by an Exothermic Reaction;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

In order to pull semiconductor single crystals by the Czochralski method, quartz glass crucibles are used which require support crucibles having high temperature capabilities. Such support crucibles may be made of various materials, in which case graphite materials, carbon fiber-reinforced carbon (CFC), combinations thereof or carbon materials coated with silicon carbide (SiC) are used. The working life of a CFC support crucible can be extended by a partial thickening of the support crucible walls affected by corrosion processes.