Pneumatic gap sensor and method

Details Pneumatic gap sensor and method Pneumatic gap sensor and method

1991-09-12

1992-03-03

Lin, Kuang Y.

Metal founding

Process

With measuring, testing, inspecting, or condition determination

164452, 164155, 164463, B22D 1118

Patent

active

050923927

ABSTRACT:
An apparatus and method for monitoring and maintaining a predetermined width in the gap between a casting nozzle and a casting wheel, wherein the gap is monitored by means of at least one pneumatic gap sensor. The pneumatic gap sensor is mounted on the casting nozzle in proximity to the casting surface and is connected by means of a tube to a regulator and a transducer. The regulator provides a flow of gas through a restictor to the pneumatic gap sensor, and the transducer translates the changes in the gas pressure caused by the proximity of the casting wheel to the pneumatic gap sensor outlet into a signal intelligible to a control device. The relative positions of the casting nozzle and casting wheel can thereby be selectively adjusted to continually maintain a predetermined distance between their adjacent surfaces. The apparatus and method enables accurate monitoring of the actual casting gap in a simple and reliable manner resistant to the extreme temperatures and otherwise hostile casting environment.

REFERENCES:
patent: 5000250 (1991-03-01), Feurstacke

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