Sintokogio, Ltd.

Sinktokogio, Ltd.

Takao Inoue

Hiroaki Suzuki

Hiroyasu Makino

Kenji Mizuno

Taketoshi Tomita

Yoshinobu Enomoto

Shizuo Takeda

Takafumi Oba

Toshiaki Ando

Hideto Terada

Hironobu Kubota

Takashi Miura

A pouring method and a device in a vacuum sealed process to produce a thin-wall cast by using a mold framing for the a vacuum sealed process, and a as-cast product using the pouring method are provided. The pouring method comprises the steps of: sealingly covering the surface of a pattern plate by a shielding member; placing a mold framing on the shielding member and then putting a fill that does not include any binder in the mold framing; sealingly covering an upper surface of the fill and then evacuating an inside of the mold framing to suck the shielding member to the fill to shape the shielding member; removing the pattern plate from the shielding member, thereby forming a mold half that has a molding surface; forming another mold half in a similar way and mating the mold halves to define a molding cavity; pouring molten metal in the molding cavity; and releasing the negative pressure in the mold framing to take out a as-cast product, and further comprises the step of decompressing the molding cavity before pouring molten metal in the mated mold.

Pouring method, device, and cast in vacuum molding process

Method and device for pouring molten metal in vacuum molding and casting

Equipment for circulating a box containing a model and having a space in it for making a mold under reduced pressures is provided. It comprises walking conveyors,and,a traverser,that reciprocates along a line that combines the end of the walking conveyor,and the starting position of the walking conveyor,a conveyor,that is arranged along a line that combines the end of the walking conveyor,and the starting position of the walking conveyor,and fixed pressure-attachable and gas-transmitting valves,movable pressure-attachable and gas-transmitting valves,and a movable pressure-attachable and gas-transmitting valve,A, which are used to make the space,in the box have reduced pressures, and optionally a conveyor,that intersects the walking conveyor,at the second station.

Equipment for circulating box containing model for making mold under reduced pressures

A method of and device for forming vacuum sealed molds, in which suction is applied to a charging material charged into a flask to remove the charging material adjacent the top of a sprue or a communicating passage thereby forming a cup-shaped pouring basin for the sprue or a funnel-shaped concave for the passage in a mold, thereafter a shielding film is applied over the upper surface of the flask, and a suction is applied to the charging material within the flask.

Method of and device for forming vacuum sealed molds

Growing community of inventors

Toyokawa, Japan

Takao Inoue