Method and device for shaking out sand from aluminum casting prepared in sand core

Abstract

Abstract PURPOSE: To perform sand shaking out effectively and perfectly by heating sand mold core aluminum castings to a high temperature then intermittently and repeatedly blowing high-pressure air. CONSTITUTION: A heating burner 10 is burned and a hot air fan 11 is driven to feed hot wind into a heating-drying facility 1 as shown by the arrow B. After the chamber inside has attained a predetermined high temperature, sand mold core aluminum castings 4 are carried into respective facilities 1, 2, 3 by moving an intermittent feed type conveyor 5. Respective shutters 6, 7 are closed to shut off the atmospheric air, whereby the castings 4 are heated to a high temperature together with the core sand. Next, the catings 4 in a high temperature state are intermittently blown several times with the high-pressure air spouted from the nozzles 20 of a high-pressure air supply path 12, in the high-pressure air blowing facility 2. Thus, the sand which has been weakened of binding force by heating is perfectly removed. Next, the castings 4 are sent into the cooling facility 3 and the shutters 7, 8 are closed so that they are cooled by the air through an air cooling fan 13. The exhaust air is completely released into the atmosphere through a dust remover 15. COPYRIGHT: (C)1981,JPO&Japio

Inventors

• 👤 Kiyoshi Nakamura
• 👤 Kazufumi Ota

Bibliographic Details