Sampling vessel for obtaining a cooling curve of molten metals

Details Sampling vessel for obtaining a cooling curve of molten metals Sampling vessel for obtaining a cooling curve of molten metals

1999-10-21

2001-03-13

Kastler, Scott (Department: 1742)

Metallurgical apparatus

With control means responsive to sensed condition

By treated material sampling means

C266S275000, C073S607000

Reexamination Certificate

active

06200520

ABSTRACT:

FIELD OF THE INVENTION
This invention relates to a sampling vessel for plotting a cooling curve of molten metals, and more particularly to a sampling vessel for thermal analyzing molten metals such as cast iron, aluminum or aluminum alloys and the like.
When pouring molten metals such as cast iron, it is important that thermal analysis be carried out very quickly and before casting. For this purpose, a portion of molten metal is poured into a sampling vessel having a thermocouple, and the composition of molten metal may be estimated from a cooling curve obtained by means of temperature measuring apparatus.
Usually, a portion of molten metal is poured into a sampling vessel by employing a ladle or shank.
When molten metal is poured into a usual sampling vessel from a furnace by using a ladle or shank, the molten metal ladled into the ladle or shank is influenced considerably the ambient temperature, and falls down suddenly.
In the light of the above, it is a main object of the invention to cope with the above problem by proposing a new sampling vessel.
It is a further object of the present invention to provide a sampling vessel into which molten metal may be ladled, directly.
It is an additional object of this invention to provide a sampling vessel of molten metal which is simple in construction and inexpensive to manufacture.
SUMMARY OF THE INVENTION
The sampling vessel of the present invention is constructed to obtain a sample of molten metal in a furnace by inserting the vessel into it without exposing the sample to the outside air.
According to the present invention, the sample of molten metal is flown into a sample chamber in the vessel to which a thermocouple is exposed, and the air contained within the camber can be exhausted completely.


REFERENCES:
patent: 3452602 (1969-07-01), Hackett
patent: 3577886 (1971-05-01), Wiese
patent: 3646816 (1972-03-01), Hance et al.

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