An immersion probe with a variable connection length is configured to compensate for longitudinal and/or radial length variations in an immersion sublance connected to the immersion probe. The immersion probe is characterized by an adjustable portion that changes length upon engagement with a coupling end of an immersion sublance. The immersion probe can have a sensor head. An immersion assembly of the immersion probe connected to an immersion sublance can be used to take measurements or samples of molten metal in a converter furnace.

Disclosed is a disc-shaped sample chamber for collecting molten metal, the chamber comprising: a chamber body having a left body and a right body bonded to each other to define a disc-shaped sample space therebetween; an inlet extending upward from the chamber body and connecting the sample space with the outside; and a welded bonding portion disposed on at least one lateral face of the chamber body for bonding the left body and the right body to each other. Further, a probe having the chamber is disclosed.

The present invention relates to a sampler for taking samples from a molten metal bath, particularly a molten steel bath, the sampler comprising: a carrier tube having an immersion end; a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises an immersion end having an opening; an inflow conduit having a first end for receiving molten metal and a second end, opposite the first end, wherein the second end is in communication with the opening, wherein the opening is configured to receive the molten metal from the inflow conduit; a measuring head, wherein the sample chamber and the second end of the inflow conduit are at least partly arranged in the measuring head; and a de-oxidant material arranged along a central axis of the inflow conduit, wherein at least part of the de-oxidant material is arranged near the second end of the inflow conduit inside the measuring head, and wherein the inflow conduit comprises first coupling means, arranged on the second end of the inflow conduit, wherein the de-oxidant material comprises second coupling means, to interact with the first coupling means on the inflow conduit to anchor the de-oxidant material in a position along the central axis of the inflow conduit. The invention also relates to a sampler for taking samples from a molten metal bath, particularly a molten steel bath, the sampler comprising:
a carrier tube having an immersion end;
a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises an immersion end having an opening;
an inflow conduit having a first end for receiving molten metal and a second end, opposite the first end, wherein the second end is in communication with the opening, wherein the opening is configured to receive the molten metal from the inflow conduit;
a measuring head, wherein the sample chamber and the second end of the inflow conduit are at least partly arranged in the measuring head; and
a metal bushing, wherein the metal bushing coupling the inflow conduit to the sample chamber.

The present invention relates to a sampler for taking samples from a molten metal bath, particularly a molten iron, the sampler comprising: a carrier tube having an immersion end; and a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises: an immersion end having a first opening for an inflow conduit and an opposing end having a second opening for a gas coupler, a first face extending between the immersion end and the opposing end, the first face having a first depression proximate the immersion end and a second depression, the first depression being an analysis zone and the second depression being a ventilation zone, a portion of the analysis zone overlying a distribution zone which is in direct flow communication with the first opening and configured to receive the molten steel from the inflow conduit, wherein the first depression having a cross sectional circle segment profile along a central longitudinal axis that is concavely or triangularly shaped, wherein the cover plate and the housing are configured to be assembled together to form a sample cavity including the distribution zone, the analysis zone and the ventilation zone, such that an analysis surface of a solidified steel sample formed within the sample cavity lies in a first plane, and wherein the first and second openings are spaced apart from the first plane. The invention also relates to a sampler for taking samples from a molten metal bath, particularly a molten iron, the sampler comprising: a carrier tube having an immersion end; a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the cover plate comprising a sealing member configured to provide a substantially gas tight seal between the cover plate and the housing, wherein the sealing member consist of an essentially non-contaminating material for the samples in the sample chamber.

The present invention relates to an apparatus for demolding and analyzing a direct analysis sample formed from a molten metal material contained within a sample chamber assembly, wherein the sample chamber assembly comprises at least a sample housing, a cover plate and closing means, comprising: a cabinet defining an interior and comprising at least one opening for the sample housing to enter the cabinet, and analyzing means located inside the cabinet for analyzing an analysis surface of the sample; demolding means adapted to remove at least the closing means to expose at least part of the analysis surface of the sample; and transporting means adapted to hold and transport the sample housing at least between a sample demolding position, where the closing means is removed by the demolding means, and a sample analysis position, where the analysis surface of the sample is analyzed by the analyzing means, and wherein the sample demolding position and the sample analysis position are different from each other. The invention also relates to a system and method for demolding and analyzing a direct analysis sample.

An immersion sensor is configured to determine the content of a chemical element in molten metal. The immersion sensor has an auxiliary electrochemical cell extending from an interior surface into the internal volume of a sampling chamber. The sampling chamber can be integrally-formed in a sensor head or in a separate refractory structure. The immersion sensor may be configured for the flow of molten metal into the internal volume of the sampling chamber and into contact with the auxiliary electrochemical cell.

A sampler for taking samples from a molten metal bath includes a carrier tube having an immersion end; sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises an immersion end having an opening; an inflow conduit having a first end for receiving molten metal and a second end, opposite the first end, wherein the second end is in communication with the opening, and the opening is configured to receive the molten metal from the inflow conduit; a measuring head, wherein the sample chamber and the second end of the inflow conduit are at least partly arranged in the measuring head; and a metal bushing, wherein the metal bushing coupling the inflow conduit to the sample chamber.

Embodiments of the present invention relate to a sampling apparatus having one or more support structures and two or more sampling molds operatively coupled to the one or more support structures. The two or more sampling molds may be sealed or unsealed. The sampling apparatus is pressurized with a gas and immersed in the molten metal. The two or more sampling molds become unsealed when the mold stops at least partially melt. When the sampling apparatus is depressurized the one or more unsealed sampling molds capture one or more molten metal samples. The sampling apparatus is removed from the molten metal and the samples are removed from the sampling molds and analyzed.

A detection device for molten metal is provided. The detection device includes a sample cup having a cavity configured to receive a sample of molten metal and a blob arranged in the cavity. The blob includes a carbide stabilizing element and a hydrogen releasing material including a hydroxide of an alkaline earth metal. The blob is provided for use in detecting phase change temperatures during solidification of a sample of molten cast iron. The blob is also resistant to moisture gain and moisture loss during transport and storage. A method of detecting phase change temperatures of the molten iron or molten cast iron sample using the blob and a method of manufacturing the blob are also provided.

The present invention relates to a sampler for taking samples from a molten metal bath, particularly a molten iron, the sampler comprising: a carrier tube having an immersion end; and a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the housing comprises: an immersion end having a first opening for an inflow conduit and an opposing end having a second opening for a gas coupler, a first face extending between the immersion end and the opposing end, the first face having a first depression proximate the immersion end and a second depression, the first depression being an analysis zone and the second depression being a ventilation zone, a portion of the analysis zone overlying a distribution zone which is in direct flow communication with the first opening and configured to receive the molten steel from the inflow conduit, wherein the first depression having a cross sectional circle segment profile along a central longitudinal axis that is concavely or triangularly shaped, wherein the cover plate and the housing are configured to be assembled together to form a sample cavity including the distribution zone, the analysis zone and the ventilation zone, such that an analysis surface of a solidified steel sample formed within the sample cavity lies in a first plane, and wherein the first and second openings are spaced apart from the first plane.

The invention also relates to a sampler for taking samples from a molten metal bath, particularly a molten iron, the sampler comprising: a carrier tube having an immersion end; a sample chamber assembly arranged on the immersion end of the carrier tube, the sample chamber assembly comprising a cover plate and a housing, wherein the cover plate comprising a sealing member configured to provide a substantially gas tight seal between the cover plate and the housing, wherein the sealing member consist of an essentially non-contaminating material for the samples in the sample chamber.