Composite alumina ceramic core material adopting alumina hollow sphere and its forming preparation process

The invention discloses a composite alumina ceramic typed core material based on hollow ball of alumina as raw material, which comprises the following parts: 32. 5-60.5% white alundum, 20-50% hollow ball of alumina, 3-5% carborundum, 11. 16-14. 88% wax, 0.6-0.8% beeswax and 0.24-0.32% polyethylene....

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1. Verfasser: SHAOJUAN,XU HAN
Format: Patent
Sprache:eng
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Zusammenfassung:The invention discloses a composite alumina ceramic typed core material based on hollow ball of alumina as raw material, which comprises the following parts: 32. 5-60.5% white alundum, 20-50% hollow ball of alumina, 3-5% carborundum, 11. 16-14. 88% wax, 0.6-0.8% beeswax and 0.24-0.32% polyethylene. The invention can manufacture complex shaped ceramic typed core, which reduces bulk density of core.