Title:
METHOD FOR CONTROLLING PRESSURIZING STROKE IN PRESSURE CASTING
Document Type and Number:
Japanese Patent JP2704470
Kind Code:
B2
Abstract:
PURPOSE: To manufacture a casting product accepted to the allowable quality standard in high yield by executing the decision of acceptance in the casting product and the decision of abnormality in the casting process with a computer in the case of controlling the pressurizing work in a pressurizing device by the computer control.
CONSTITUTION: By acting an injection device 13, molten metal 20 is filled up in a die 10 and also, by advancing a pressurizing plunger 17, the molten metal in the die is pressurized. The divided treatment is executed at every preset time from working start of the pressurizing plunger 17. At this time, in the case of being the positive and in the case of being the negative in the difference between the preset aimed locus stroke quantity and the actual stroke position of the pressurizing plunger, sum of the squares in each difference is obtd. According to the quantity to the sum to these and each preset control value, the decision of acceptance in the pressurizing casting product is executed. By this method, the casting product having the allowable quality is manufactured in the high yield and damage of the structural element in the pressurizing casting machine is prevented to keep the performance thereof.
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Inventors:
Nishimura Kazuhisa
Application Number:
JP32496691A
Publication Date:
January 26, 1998
Filing Date:
October 08, 1991
Export Citation:
Assignee:
Ube Industries,Ltd.
International Classes:
B22D17/32; B22D17/22; B29C45/76; G07C3/14; (IPC1-7): B22D17/22; B22D17/32; B29C45/76; G07C3/14
Domestic Patent References:
| JP3275263A | ||||
| JP3275264A | ||||
| JP292446A | ||||
| JP2155556A |
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