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Method for manufacturing resinoid-bonded grinding tools

  • US 4,099,934 A
  • Filed: 12/14/1976
  • Issued: 07/11/1978
  • Est. Priority Date: 07/29/1976
  • Status: Expired due to Term
First Claim
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1. A method for manufacturing a resinoid-bonded grinding tool in which metal-coated abrasive grains are adhesively attached upon the surface of a metallic base member with a thermosetting resin, comprising the steps of:

  • (a) washing said surface of said base member so as to expose a pure metallic surface thereon by washing said surface of said metallic base member with a grease removing solvent;

    washing said washed surface with an alkali solution; and

    then washing said alkali washed surface with an acid solution;

    (b) applying a liquid thermosetting resin to said pure metallic surface of said base member so as to prevent the formation of an oxide film thereon or the adherence of gas thereto during subsequent heating;

    (c) washing said abrasive grains;

    (d) coating the surface of said abrasive grains with a liquid thermosetting resin;

    (e) mixing a powdered thermosetting resin with said abrasive grains covered with said liquid thermosetting resin and press-forming the mixture upon said resin-applied surface of said base member to form a press-formed article of a desired shape; and

    (f) heating said press-formed article formed upon said base member so as to thermally set said formed article upon said base member.

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