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Machine translation
1. (WO1980001653) PRODUCTION OF CASTING MOLD
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001653    International Application No.:    PCT/JP1979/000029
Publication Date: 21.08.1980 International Filing Date: 08.02.1979
IPC:
B22C 1/16 (2006.01)
Applicants:
Inventors:
Priority Data:
JP79/00029 08.02.1979 WO
Title (EN) PRODUCTION OF CASTING MOLD
(FR) FABRICATION D"UN MOULE DE FONDERIE
Abstract: front page image
(EN)Dry sand is uniformly mixed with a thermoplastic resin solution and then dried to prepare a resin-coated sand. The resultant sand is then mixed with a volatile solvent or a mixture of the solvent and heat-resistant water-glass to thereby apply the solvent over the resin-coated sand. There is thus provided a wet sand superior in fluidity by using only a relatively small amount of solvent. This wet sand is formed into a casting mold which is subsequently subjected to a rapid curing by blowing air or a mixed gas of air and carbon dioxide into the mold.
(FR)Du sable sec est melange uniformement avec une solution de resine thermoplastique et ensuite seche pour preparer un sable revetu de plastique. Le sable resultant est melange avec un solvant volatile ou un melange du solvant et d"un silicate aqueux resistant a la chaleur afin d"appliquer le solvant sur le sable revetu de resine. On obtient ainsi un sable humide superieur en fluidite par l"utilisation d"une quantite relativement faible de solvant. Ce sable humide est forme en un moule de fonderie qui est ensuite soumis a une polymerisation rapide en soufflant de l"air ou un melange gazeux d"air et de gaz carbonique dans le moule.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)