(19)
(11) EP 3 581 913 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
04.08.2021 Bulletin 2021/31

(43) Date of publication:
18.12.2019 Bulletin 2019/51

(21) Application number: 18177315.1

(22) Date of filing: 12.06.2018
(51) International Patent Classification (IPC): 
G01N 1/12(2006.01)
 G01N 33/20(2019.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(71) Applicant: Heraeus Electro-Nite International N.V.
3530 Houthalen (BE)

(72) Inventors:
  • DOETS, Jan
    3530 Houthalen (BE)
  • NEYENS, Guido
    3530 Houthalen (BE)
  • BEYENS, Dries
    3530 Houthalen (BE)
  • VERHOEVEN, Jean-Paul
    3530 Houthalen (BE)
  • POTARGENT, Arne
    3530 Houthalen (BE)

(74) Representative: Heraeus IP 
Heraeus Holding GmbH Intellectual Property Heraeusstraße 12-14
63450 Hanau
63450 Hanau (DE)

   


(54) IMPROVED MOLTEN METAL SAMPLER


(57) 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 noncontaminating material for the samples in the sample chamber.