An immersion device for collecting a slag sample and measuring a molten metal parameter is provided. The immersion device includes an inflow conduit for directing the molten slag to a slag sample chamber and a measuring element for measuring the parameter of the molten metal. The inflow conduit and the measuring element are arranged in the top area of an immersion end of the immersion device and/or are facing towards an immersion direction. During immersion in the immersion direction into the molten slag and then the molten metal, the molten slag enters an external portion of the inflow conduit and is directed through an inner portion of the inflow conduit to the slag sample chamber. Reliable slag collection and molten metal measurement also in a converter can thereby be achieved. A method of collecting a slag sample and measuring a molten metal parameter is also provided.

A sampler for taking samples from a molten metal bath, particularly a molten steel bath, includes a sample chamber assembly having a cover plate and a housing. The housing has an immersion end provided with an inflow conduit and including a sample cavity including a distribution zone, an analysis zone, and a ventilation zone. The sample cavity is dimensioned into four contiguous segments each of which has a respective length and depth. The four contiguous segments satisfy the formula: (L.sub.1/D.sub.1)+(L.sub.2/D.sub.2)+(L.sub.3/D.sub.3)+(L.sub.4/D.sub.4)>25.

A sampler has a sample chamber for a sample forming from a molten material, at least one lower cooling body, at least one upper cooling body, at least one inner cooling body, and at least one filling part. The sample chamber is surrounded jointly at least by the lower cooling body and the inner cooling body, such that at least the sample chamber can be cooled by at least the lower and inner cooling bodies. The filling part merges into the sample chamber by a filling opening. Between a region of the outer surface of the inner cooling body and a region of the outer surface of the upper cooling body opposite the outer surface of the inner cooling body, the sampler has at least one gap for conducting at least one gas. The volume of the respective cooling bodies is larger than the volume of the gap.

A method of analyzing a phase transformation process of a material comprises providing a spherical sample of the material, measuring and recording a first data series of core temperature at the sample's center of gravity, measuring and recording a respective second data series of temperature at the sample's periphery, measuring and recording a respective third data series of radial displacements at the sample's periphery, and calculating a change in pressure in the sample at a plurality of points in time based on first, second and third said data series.

Provided is a replacement system for a metallurgical temperature measuring and sampling probe (200). The replacement system is arranged at a temperature measuring gun (100) for measuring the temperature of a molten metal ladle, and comprises: a six-axis manipulator (1), a clamping tool (2) mounted at a tail end of the six-axis manipulator (1), a shelf (3) for storing the temperature measuring and sampling probe (200), a shearing machine (4), and a waste material box (5), wherein the temperature measuring gun (100), the shelf (3), the shearing machine (4), and the waste material box (5) are sequentially arranged in different directions within a rotation range of the six-axis manipulator (1), respectively; the waste material box (5) is arranged close to the shearing machine (4); the clamping tool (2) comprises a base (21), a clamping jaw (22) configured to clamp the temperature measuring and sampling probe (200) and a positioning jaw (23) which are arranged in parallel at a front end of the base (21), and a detection device (24) located between the clamping jaw (22) and the positioning jaw (23); a center line of a clamping space of the clamping jaw (22) and a center line of a positioning space of the positioning jaw (23) are located on the same axis, and a detection source of the detection device (24) passes through the axis. Instead of manually sleeving or pulling out the temperature measuring and sampling probe (200), the replacement system can reduce the labor intensity of operators, reduce the harm of the high-risk environment to health, and improve the working efficiency. Further disclosed is a replacement method of the replacement system for the metallurgical temperature measuring and sampling probe (200).

An apparatus for analysis of metals is provided. The apparatus includes a molding cavity for receiving a sample of a molten metal, a gating system for allowing the molten metal to be poured, and a vent for allowing gases to escape from the apparatus when the molten metal is poured. The apparatus further includes at least one chill plate, adjacent to the molding cavity, for enabling faster cooling and solidification of the sample of the molten metal. The apparatus also includes a longitudinal slot, extending from the molding cavity, for allowing a sensor element to be introduced into the sample of the molten metal, the sensor element is a thermocouple wire that is used to monitor a cooling curve of the molten metal, while the molten metal solidifies.

A sampler for taking samples from a molten metal bath, particularly a molten steel bath, includes a sample chamber assembly having a cover plate and a housing. The housing has an immersion end provided with an inflow conduit and including a sample cavity including a distribution zone, an analysis zone, and a ventilation zone. The sample cavity is dimensioned into four contiguous segments each of which has a respective length and depth. The four contiguous segments satisfy the formula: (L.sub.1/D.sub.1)+(L.sub.2/D.sub.2)+(L.sub.3/D.sub.3)+(L.sub.4/D.sub.4)>25.

A sampler for taking samples from a molten metal bath, particularly a molten steel bath, includes a sample chamber assembly having a cover plate and a housing. The housing has first and second openings for an inflow conduit and a gas coupler, respectively. The first face of the housing includes a distribution zone, an analysis zone and a ventilation zone. A depth of the analysis zone is greater than 1.5 mm and less than 3 mm. The cover plate and the housing assemble together to form a sample cavity. An analysis surface of a solidified steel sample formed within the sample cavity lies in a first plane. In a flow direction of the molten steel, there are no increases in a width dimension of the sample cavity and a ratio of the length to depth of the sample cavity increases.

A sampler for taking samples from a molten metal bath, particularly a molten iron includes a sample chamber assembly having a cover plate and a housing. The housing has first and second openings for an inflow conduit and a gas coupler, respectively. The first face has an analysis zone, a ventilation zone, and a distribution zone. A depth of the analysis zone is 0.5 mm to 1.5 mm. The cover plate and the housing are assembled together to form a sample cavity. The sample chamber assembly chills the molten iron received therein to a solidified white structure metal sample. An analysis surface of the sample lies in a first plane. In a flow direction of the molten iron, there are no increases in width of the sample cavity and a ratio of the length to depth of the sample cavity increases.

A sample chamber assembly for molten metal comprises a cover plate and a housing. A first face of the housing has a depression in direct flow communication with a first opening formed at the immersion end of the housing. The cover plate and the housing are assembled together along a first plane to form a sample cavity including the depression. An analysis surface of a solidified metal sample lies in the first plane. The sample cavity and the first opening are aligned along a common longitudinal axis. The first opening is spaced apart from the first plane. A ratio of the thermal diffusivities of the solidified metal sample and the housing material is between 0.1 and 0.5. The housing is inseparable from the solidified metal sample. A portion of the housing is directly adjacent to the solidified metal sample and lies in the first plane.