Blast-furnace tuyere having excellent thermal shock resistance a

Details Blast-furnace tuyere having excellent thermal shock resistance a Blast-furnace tuyere having excellent thermal shock resistance a

1974-02-28

1976-08-31

Weiffenbach, Cameron K.

Metallurgical apparatus

Means for introducing fluent into vessel, e.g., tuyere

427 34, 427405, 427419, 427423, 427427, 29195, 29199, C21B 716

Patent

active

039776603

ABSTRACT:
A blast-furnace tuyere having excellent thermal-shock resistance and high durability consists of a tuyere substrate composed of copper or copper alloy, a nickel or cobalt base self-fluxing alloy metallized layer sprayed on the said substrate, a zirconia or alumina base cermet layer sprayed on the said alloy metallized layer and a zirconia or alumina ceramic coating layer sprayed on the said cermet layer.

REFERENCES:
patent: 3069760 (1962-12-01), Schultz
patent: 3427698 (1969-02-01), Guzewicz
patent: 3719519 (1973-03-01), Perugini

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