Molten metal sampler

Patent metadata

Field	Value
Publication number	US-2021370286-A1
Application number	US-202117444937-A
Country	US
Kind code	A1
Filing date	Aug 12, 2021
Priority date	Jun 12, 2018
Publication date	Dec 2, 2021
Grant date	—

Abstract

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.

First claim

1 . A sampler for taking samples from a molten metal 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 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 consists of an essentially non-contaminating material for the samples in the sample chamber.

2 . The sampler of claim 1 , wherein the sealing member has a thickness of 0.05 mm to 0.2 mm.

3 . The sampler of claim 1 , wherein the sealing member has a thickness of 0.12 mm.

4 . The sample of claim 2 , wherein the sealing member is a gasket.

5 . The sampler of claim 1 , wherein the non-contaminating material is a non-impregnated paper material.

6 . The sampler of claim 2 , wherein the non-contaminating material is a non-impregnated paper material.

7 . The sampler of claim 1 , wherein the non-contaminating material is a pre-form comprising a synthetic or natural elastomer wherein the non-contaminating material is pre-cured to a temperature of at least 100° C.

8 . The sampler of claim 1 , wherein the non-contaminating material is a pre-form comprising a synthetic or natural elastomer wherein the non-contaminating material is pre-cured to a temperature of more than 120° C.

9 . The sampler of claim 2 , wherein the non-contaminating material is a pre-form comprising a synthetic or natural elastomer wherein the non-contaminating material is pre-cured to a temperature of at least 100° C.

10 . The sampler of claim 2 , wherein the non-contaminating material is a pre-form comprising a synthetic or natural elastomer wherein the non-contaminating material is pre-cured to a temperature of more than 120° C.

11 . The sampler of claim 1 , wherein the sealing member is attached to the cover plate by bending at least one section of the sealing member around the cover plate.

12 . The sampler of claim 1 , wherein the sealing member is attached to the cover plate by bending at least one section of the sealing member around the cover plate over a length of at least 3 mm.

13 . The sampler of claim 2 , wherein the sealing member is attached to the cover plate by bending at least one section of the sealing member around the cover plate.

14 . The sampler of claim 5 , wherein the sealing member is attached to the cover plate by bending at least one section of the sealing member around the cover plate.

15 . The sampler of claim 7 , wherein the sealing member is attached to the cover plate by bending at least one section of the sealing member around the cover plate.

16 . The sampler of claim 1 , wherein the sealing member is attached to the cover plate by a low-tack pressure-sensitive adhesive material that is essentially non-contaminating for the samples in the sample chamber.

17 . The sampler of claim 2 , wherein the sealing member is attached to the cover plate by a low-tack pressure-sensitive adhesive material that is essentially non-contaminating for the samples in the sample chamber.

18 . The sampler of claim 5 , wherein the sealing member is attached to the cover plate by a low-tack pressure-sensitive adhesive material that is essentially non-contaminating for the samples in the sample chamber.

19 . The sampler of claim 7 , wherein the sealing member is attached to the cover plate by a low-tack pressure-sensitive adhesive material that is essentially non-contaminating for the samples in the sample chamber.

20 . The sampler of claim 1 , wherein the molten metal bath is a molten iron bath.

Assignees

• Heraeus Electro Nite Int

Inventors

• Doets Jan
• Neyens Guy
• Beyens Dries
• Verhoeven Jean-Paul
• Potargent Arne

Classifications

• B01F33/45 Primary

  Magnetic mixers; Mixers with magnetically driven stirrers · CPC title

• G01N1/10 Primary

  in the liquid or fluent state {(burettes, pipettes B01L3/02; sampling of ground water E02D1/06; metering by volume of fluids or fluent solid material G01F11/00, G01F13/00)} · CPC title

• B22D2/00

  Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass · CPC title

• B22C9/02

  Sand moulds or like moulds for shaped castings · CPC title

• C21C5/4673

  Measuring and sampling devices · CPC title