Patent ID: 6767130
Filing Date: 2004-07-27
Classification: G01N

Abstract:
A sampling device for thermal analysis of solidifying metal, particularly compacted graphite iron, comprising:a container that is essentially cylindrical, said container being open at a top and structured to be immersed down into and filled with a liquid metal to be analyzed, at least one temperature responsive sensor member, at least one protective tube concentrically enclosing said at least one temperature responsive sensor member, arranged inside said container and supported by a sensor support member arranged above said container and attached to said container by legs and structured to guide and keep said at least one temperature responsive sensor member in position, when immersed in a solidifying metal sample quantity during analysis, said container including an inner wall with an interior surface structured to contact the sample quantity during analysis and an exterior surface, and an outer wall with an interior surface and an exterior surface structured to contact ambient atmosphere, said walls being joined at the said top of said container and being mutually equally spaced in a cylindrical part of the container, so as to form a closed insulating space between opposite corresponding wall surfaces, wherein said container has a substantially semispherical bottom part which has a concentrically arranged flattened part with a diameter larger than the diameter of the protective tube, a distance between inner wall surfaces of the flattened part being less than a distance between those wall surfaces in the cylindrical part of the container.