SHAPED BODY FOR HERMETICALLY ENCLOSING GLASS POWDER AND METHOD FOR FEEDING GLASS POWDER INTO FORMING MOLD

摘要

PURPOSE:To efficiently feed glass powder into a forming mold by filling the glass powder into a vessel made of a plastic film and carrying out degassing and hermetical sealing. CONSTITUTION:Glass powder to be fed into the forming mold is filled into a vessel made of a plastic film and degassing and hermetical sealing are carried out to form a hermetically sealed shaped body of the glass powder. When the glass powder is fed into the forming mold, the feed is carried out by each shaped body unit and leveling work after feed is made unnecessary. If the outer surface of the shaped body is coated with a releasing agent before feed into the forming mold, the next shaped body can directly be fed into the forming mold without cooling the hot mold immediately after a molded body of glass powder is taken out.