Composition for fabricating abrasive tools

• US 4,308,035 A
• Filed: 04/04/1979
• Issued: 12/29/1981
• Est. Priority Date: 04/04/1979
• Status: Expired due to Term

• Current Assignee: Faina B. Danilova, Genrikh A. Mkrtchan, Genya A. Storchak, Nikolai S. Koshevoi, Nikolai V. Pertsov, Viktor A. Lobachev, Vladimir G. Safronov, Vladimir N. Lvov
• Original Assignee: Faina B. Danilova, Genrikh A. Mkrtchan, Genya A. Storchak, Nikolai S. Koshevoi, Nikolai V. Pertsov, Viktor A. Lobachev, Vladimir G. Safronov, Vladimir N. Lvov
• Inventors: Lvov, Vladimir N., Safronov, Vladimir G., Lobachev, Viktor A., Danilova, Faina B., Koshevoi, Nikolai S., Storchak, Genya A., Mkrtchan, Genrikh A., Pertsov, Nikolai V.
• Primary Examiner(s): Czasa, Donald E.
• Assistant Examiner(s): THOMPSON, WILLIE
• Application Number:
  US06/026,999
• Time in Patent Office: 1,000 Days
• Field of Search: 51/298
• US Class Current: 51/298
• CPC Class Codes: B24D 3/02 the constituent being used as bonding agent
• CPC Class Codes: B24D 3/28 Resins or natural or synthetic macromolecular compounds B24D3/22 takes precedence
• CPC Class Codes: B24D 3/34 characterised by additives enhancing special physical properties, e.g. wear resistance, electric conductivity, self-cleaning properties
• CPC Class Codes: C08K 3/00 Use of inorganic substances as compounding ingredients
• CPC Class Codes: C08K 3/08 Metals

Abstract

According to the invention, the composition contains an abrasive material (12.5-37.5 vol.-%), a metallic filler (30-60 vol.-%), a mineral binder (5-30 vol.-%) and the balance is an organic binder.

The mineral binder is constituted by at least one substance from a group of salts whose melting temperature corresponds to the temperature range of polymerization of the organic binder.

Claims

1. In a composition for fabricating abrasive tools comprising an abrasive material selected from the group consisting of diamond, boron nitride, boron carbide and other hard materials;

a metallic filler; and

an organic binder selected from the group consisting of phenol formaldehyde resin and polyimide resin;

the improvement which comprises including in said composition an appropriate mineral binder whose melting temperature must correspond to the range of polymerization temperatures of the selected organic binder;

said mineral binder consisting of one or a combination of components selected from the group consisting of copper chloride, sodium chloride, tin chloride, tin diiodide, and copper acetate;

the above composition having the following proportions (vol.-%);

space="preserve" listing-type="tabular">______________________________________ abrasive material 12.5-37.5 metallic filler 30 to 60 mineral binder 5 to 30 organic binder balance. ______________________________________

2. A composition as claimed in claim 1 including at least one antifriction material, and which has the following proportion of components (vol.-%):

space="preserve" listing-type="tabular">______________________________________ abrasive material 12.5-37.5 metallic filler 30 to 50 salt component(s) 5 to 20 antifriction material 5-15 organic binder balance. ______________________________________

3. A method for improving the wear resistance of an abrasive tool composition comprising an abrasive material selected from the group consisting of diamond, boron nitride, boron carbide and other hard materials;

a metallic filler; and

an organic binder selected from the group consisting of phenol formaldehyde resin and polyimide resin;

comprising;

incorporating in said composition an appropriate mineral binder whose melting temperature must correspond to the range of polymerization temperatures of the selected organic binder;

said mineral binder consisting of one or a conbination of components selected from the group consisting of copper chloride, sodium chloride, tin chloride, tin diiodide, and copper acetate;

the above composition having the following proportions (vol.-%);

space="preserve" listing-type="tabular">______________________________________ abrasive material 12.5-5-37.5 metallic filler 30 to 60 mineral binder 5 to 30 organic binder balance;

______________________________________

heating the composition to the polymerization temperature of the organic binder and molding at elevated pressure.

4. The method of claim 9 additionally containing at least one antifriction material, the components of said composition appearing in the following volumetric proportions:

space="preserve" listing-type="tabular">______________________________________ abrasive material 12.5-37.5% metallic filler 30 to 50% salt component(s) 5 to 20% antifriction material 5 to 15% organic binder balance. ______________________________________