Abrasive material

Details Abrasive material Abrasive material

1980-10-15

1982-12-21

Czaja, Donald E.

Abrasive tool making process, material, or composition

With synthetic resin

51296, 51304, 51307, C09K 314

Patent

active

043647464

ABSTRACT:
An abrasive compound in which individual abrasive grains of various types are joined in a preliminary step into the formation of so-called agglomerated abrasive grains, each of which may contain a number of individual grains. The particular feature of the invention is that the abrasive compound which is to be applied to a suitable surface to constitute an abrasive or grinding tool consists of a mixture of agglomerated abrasive grains of substantially different types. The differences in the agglomerated abrasive grain refer principally to the abrasive power and strength and the ability to sustain abrading forces, i.e., they are related to the endurance of the agglomerated grains under conditions of use. The substantially different strengths or properties of the agglomerated abrasive grains may derive from different types of binder used to create them from the individual grains, different methods of hardening or drying, different quantities of binder, or different constituent individual grains. The mixture of agglomerated abrasive grains of substantially different strength may be used with a component of non-agglomerated grains as well as with a reinforcing additive of short, chopped carbon or graphite fibers. Various embodiments are presented.

REFERENCES:
patent: 2194472 (1940-03-01), Jackson
patent: 2216728 (1940-10-01), Benner et al.
Journal Chemie Technik, vol. 6, No. 11, pp. 477-481.
Journal Chemie-Ing.-Techn., vol. 42, 1970, No. 9/10, pp. 659-669.
Journal Chemie-Technik, 1977, p. 478.
Chemical Engineer's Handbook, Fifth Ed., 1973, pp. 8-65, McGraw Hill, New York.
Jenkins, G. and Kawamura, K., "Polymeric Carbons-Carbon Fibers, Glass and Char.", Cambridge Univ. Press, Cambridge, 1976.

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