Title: Shell and tube composite material suitable for treatment of melten metal bath
Application Number: 88100499 Application Date: 1988.02.03
Publication Number: 1020254 Publication Date: 1988.08.17
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C21C1/02;C21C7/00;C21C7/04
Applicant(s) Name: Afievall Co. Address:
Inventor(s) Name: Michel Dutch
Attorney & Agent: WU DAJIAN
Abstract:
    The invention relates to a composite product of substantial length for the treatment of metal baths which is formed by a tubular metal casing (2) within which are housed the treatment material or materials in powder form and which comprises an axial zone (4) containing a first material surrounded by a tubular metal intermediate wall (3) and an annular zone (6) between the casing and the intermediate wall and which also contains a second material. Such a composite product in which the axial zone contains at least one element selected from calcium and magnesium can be used in particular for the desulphurization of iron or steel baths.
Time: 10