PURPOSE: To rationalize die casting and to improve product quality as for casting equipment by detecting in no time delay and in high precision the molten metal surface under high pressure.
CONSTITUTION: It is the molten metal quantity control device of a casting equipment, which a molten metal 14 is poured in a die 9 so as to be die-cast under high pressure. A sensor for molten metal surface detection 10, which is provided with an electrode 1 of small diameter bar of heat resistant electric conductor and a refractory 5 encircled around a tip of electrode, is inserted into the hole 15 opened to the molten metal surface detecting position of a cavity 11 in a die 9, facing each tip part of the electrode 1 and refractory 5 on the cavity 11 and is fixed in the hole with electrically insulated so as to receive the internal pressure of cavity as the electrode 1 and refractory 5 are integrated. This electrode 1 of the molten metal detection sensor 10 and die 9 are short circuited through the molten metal 14 to detect a molten metal surface of the molten metal 14, further, the device consists of a control means 16 to control variation of molten metal supply quantity.
TAKAHASHI TOSHIMITSU
OTSUKI FUMIKAZU
TSUNE KIYOSHI
SHINKO TECHNO KK
| JPH028508A | 1990-01-12 | |||
| JPS54115454U | 1979-08-13 | |||
| JPS61198717U | 1986-12-12 |