Pneumatic gap sensor and method
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. 6 figs.
- DOE Contract Number:
- FC07-88ID12712
- Assignee:
- Armco, Inc., Middletown, OH (United States)
- Patent Number(s):
- US 5092392; A
- Application Number:
- PPN: US 7-759735
- OSTI ID:
- 7274485
- Country of Publication:
- United States
- Language:
- English
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360101* -- Metals & Alloys-- Preparation & Fabrication
360201 -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360601 -- Other Materials-- Preparation & Manufacture
440800 -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
CASTING
CONTROL
DESIGN
FABRICATION
FLUID FLOW
FLUID MECHANICS
GAS FLOW
MEASURING INSTRUMENTS
MECHANICS
MONITORS
PNEUMATICS
PROCESS CONTROL