Patent ID: 9116054
Filing Date: 2015-08-25
Classification: C22B,G01K,G01N

Abstract:
1. A drop-in probe for determining phase changes by thermal analysis of a sample removed from a molten steel, the drop-in probe comprising a measurement head having an immersion end, a sample chamber arranged in the measurement head and having an inlet opening, a thermocouple projecting with its hot solder joint into the sample chamber, and a cable bushing for signal cables of the thermocouple, the cable bushing emerging from the measurement head out of a discharge opening on an end of the measurement head opposite the immersion end, the thermocouple being held in the sample chamber with a gas-permeable material, wherein the cable bushing and the discharge opening are connected to the sample chamber in a gas permeable way via the gas-permeable material, wherein a longitudinal axis of the measurement head extends between the immersion end and the discharge opening and a plane extends through the measurement head perpendicular to the longitudinal axis between the immersion end and the discharge opening, a portion of the measurement head which is bounded between the immersion end and the plane having a density of at least 7 g/cm wherein the inlet opening opens in a surface of the measurement head distal from the immersion end and proximate to the plane, and wherein a total density of the measurement head equals less than 7 g/cm