Metallurgical apparatus – Means for treating ores or for extracting metals – By means applying heat to work – e.g. – furnace
Patent
1979-08-13
1982-01-12
Rosenberg, P. D.
Metallurgical apparatus
Means for treating ores or for extracting metals
By means applying heat to work, e.g., furnace
C21B 710
Patent
active
043101470
ABSTRACT:
To improve the resistance to abrasion during use of cooled components, such as tuyeres and stack and bosh coolers, in furnaces a refractory or a metal with greater abrasion resistance than the metal, which is normally copper or a copper alloy, used for the main body of the component is introduced during casting into the cast walls of the components. The added material may be in the form of one or more segments, a mesh, or in discrete particles and is located at or just below the surface at the nose (24) of the component. Examples of the materials which may be used are particles (44,48) of so-called "hard metals" which comprise hard sintered carbides, such as tungsten carbide; stainless steel meshes and expanded elements (10,40,42) of varying thickness; and various compressed refractories capable of withstanding the thermal shock in a matrix of copper.
REFERENCES:
patent: 1673053 (1928-01-01), Ohba
patent: 2686666 (1954-08-01), Tau
patent: 3652070 (1972-03-01), Sagara
patent: 3681051 (1972-08-01), Takashima et al.
patent: 3690633 (1972-09-01), Andonier et al.
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