Two temperature measuring probe
AssigneeElectro-Nite Co.
InventorRichard Conti
Life of this patent
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Abstract
A device for measuring both the phase change temperature of a sample of a molten metal bath and the actual bath temperature by means of a single thermocouple. The device having a chamber defined by a housing such that the housing will be consumed by the molten metal bath after determination of the phase change temperature of the sample within the chamber. After consumption of the housing, the sample remelts into the bath and the thermocouple determines the bath temperature.
Claims12
A process for determining the alloy content of a molten metal mixture in a bath comprising the steps of:
- immersing a measuring probe into the molten metal bath;
- taking a sample portion of the bath into a chamber of said probe;
- chilling the sample portion within said chamber measuring and recording the liquidous arrest temperature of the sample portion with a single thermocouple element positioned within said chamber;
- exposing the sample portion to the bath;
- remelting the sample portion;
- measuring and recording the molten metal bath temperature with said single thermocouple element after remelt of the sample portion;
- and correlating the liquidous arrest temperature measurement to a known alloy content of the bath.
An immersion probe for measuring the phase change temperature and bath temperature of molten metal in a bath, comprising:
- a body portion;
- a single means for measuring the bath temperature and phase change temperature of the molten metal;
- chamber means for receiving a sample of the molten metal, said temperature measuring means positioned within said chamber means, said chamber means further including a wall adapted to chill the sample to at least the initiation of solidification of the sample such that said measuring means detects the phase change temperature of the sample, said chamber means being consumed by the molten metal after initiating solidification of the sample to expose the sample to the molten metal, to remelt the sample and to expose the temperature measuring means to the molten metal for direct measurement of the temperature of the molten metal;
- and means for recording the measured temperature.
A measuring probe for determining the phase change temperature and bath temperature of molten metal in a bath comprising:
- a body portion adapted to be supported by a hollow support tube, said body portion supporting a housing having a top and a thermocouple, said thermocouple extending into a chamber formed by said housing and said body portion, said housing having entry means adapted for admittance of a sample of molten metal into the chamber after immersion of the probe into the molten metal bath, said housing further including a wall adapted to chill the sample such that the thermocouple measures the phase change temperature of the molten metal sample which is recorded, said wall of said housing being of such material so as to be consumed by the bath within a time in excess of the time required to determine the phase change temperature of the sample and, upon consumption, exposing the sample to the molten metal for remelting the sample and the same thermocouple measuring the molten metal bath temperature after the remelting of the sample which is recorded.
A process for measuring both the phase change temperature and the bath temperature of a molten metal by means of a single thermocouple element positioned within a chamber of a measuring probe comprising the steps of:
- immersing said measuring probe into a molten metal bath;
- taking a sample of the molten metal bath into said chamber;
- detecting the liquidous arrest temperature of the sample with said single thermocouple element;
- exposing the sample to the molten metal bath for remelting the sample into the bath;
- measuring the bath temperature with said single thermocouple element after remelting the sample and recording the measured temperatures.
Dependencies are inferred from the claim text.