Patents Assigned to Wahl Refractory Products, Company
  • Highly reinforced refractory concrete with 4-20 volume % steel fibers
    Patent number: 4366255
    Abstract: A highly reinforced refractory is disclosed. In accordance with the invention higher reinforcement of refractory shapes such as plunging bells or injection lances is achieved by infiltrating a bed of metal fibers in a mold with an aqueous slurry of a refractory material containing a superplasticizer. Refractory Concrete comprises e.g. calcium aluminate cement, alumina aggregate of 35 mesh or less maximum particle size, sulfonated naphthalene formaldhyde as superplasticizer and greater than 4 volume % metal (steel) fibers.
    Type: Grant
    Filed: March 23, 1981
    Date of Patent: December 28, 1982
    Assignee: Wahl Refractory Products, Company
    Inventor: David R. Lankard