Process for automatic regulation of a casting cycle
First Claim
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1. A process for controlling a casting cycle of a metal casting system based on the geometry of the casting comprising:
- (a) a calibration procedure for determining the optimum pressure in a furnace of the casting system as a function of time to optimize the casting of an article of a particular design; and
(b) a casting procedure comprising the step of;
(i) introducing melted metal substance into a furnace;
(ii) introducing a discharge fluid under pressure into said furnace to pressurize the metal substance;
(iii) sensing the presence of the metal substance at a location relating to the entry of the metal substance into a mold of the system to determine an initial time;
(iv) continuously sensing the real value of the pressure of the discharge fluid and comparing it to the optimum pressure of the discharge fluid as a function of time based upon said initial time;
(v) continuously adjusting the pressure in said furnace to conform to said optimum pressure.
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Abstract
The invention relates to an automatic process for regulating a casting cycle which uses a machine exerting a low pressure. It comprises controlling the level of discharge pressure introduced into a furnace in order to raise metal being cast according to precise dynamic and physical conditions. By using an ultrasonic sensor, random non-predetermined phenomena accompanying the casting, such as lowering the level of metal in the crucible and leakage of discharge fluid, are taken into account in regulating the casting cycle and casting or forming metal within a mold.
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Citations
11 Claims
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1. A process for controlling a casting cycle of a metal casting system based on the geometry of the casting comprising:
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(a) a calibration procedure for determining the optimum pressure in a furnace of the casting system as a function of time to optimize the casting of an article of a particular design; and (b) a casting procedure comprising the step of; (i) introducing melted metal substance into a furnace; (ii) introducing a discharge fluid under pressure into said furnace to pressurize the metal substance; (iii) sensing the presence of the metal substance at a location relating to the entry of the metal substance into a mold of the system to determine an initial time; (iv) continuously sensing the real value of the pressure of the discharge fluid and comparing it to the optimum pressure of the discharge fluid as a function of time based upon said initial time; (v) continuously adjusting the pressure in said furnace to conform to said optimum pressure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification