Molten metal sampler
AssigneeRobert C. Collins
InventorEdward A. Kelsey
Life of this patent
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Abstract
A receptacle for extracting a sample of molten metal from a furnace while the metal is in the furnace or is being poured from it. The receptacle is formed of a mineral fiber or other suitable material having high heat insulating qualities with a portion of the wall of the receptacle being formed of a material that is a relatively good conductor of heat. The proportion of insulating material to good heat conducting material is such as to obtain the desired control of the solidification of the metal by preventing premature chilling and thereby improving the quality of the sample. The good heat conductor preferably presents a smooth surface to obtain a corresponding smooth surface on the metal sample to facilitate processing it in the metallurgical laboratory.
Claims10
In a molten metal sampler for receiving samples of molten metal that are to be solidified in a particular configuration for metallurgical testing;
- a body formed of an insulating material and having a hole formed through said body so that the hole is open at both ends;
- a plate covering each of the two openings of the hole to cooperate with the body for forming a chamber for receiving the molten metal, each of said plates being formed of a good heat conducting material with their exterior surfaces being exposed to the atmosphere when the sampler is removed from the molten metal so that they can continue to conduct heat away from the molten metal in said chamber;
- securing means for securing said plates in position over the open ends of the hole;
- and a filler passage formed through said body for admitting the molten metal into said chamber, whereby the rate of cooling of the molten metal sample in the chamber will depend on the proportion of insulating walls to good head conducting walls forming the chamber.
Dependencies are inferred from the claim text.