| 摘要 |
PROBLEM TO BE SOLVED: To provide target reinforcement of a molded article so as to improve specific physical characteristics like combination resistance to wear, high temperature, stress, or corrosion environment, or one or more of them.SOLUTION: Casting preforms are provided comprising a casting preform assembly; and a plurality of geometrically shaped bodies, wherein the plurality of geometrically shaped bodies are arranged or interconnected to form the casting preform assembly. Also provided is a method of using a casting preform, comprising forming a casting preform assembly, wherein the casting preform assembly comprises a plurality of geometrically shaped bodies; anchoring the casting preform to an outer surface of a casting mold; introducing a fluid casting material into the casting mold; applying centrifugal force to the casting mold; forming a molded article, wherein at least a portion of the surface of the molded article is reinforced with the plurality of geometrically shaped bodies. |
