Abrasive product
OwnerJohn Dodsworthinventor
Life of this patent
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Abstract
A composite abrasive compact is produced by placing strips of suitable abrasive material on a cemented carbide substrate. The strips each comprise abrasive particles, optionally with a particulate second phase, in an organic binder. The organic binder is first removed by volatilization. Then, the cemented carbide substrate with the strips thereon is subjected to compact-producing conditions of elevated temperature and pressure.
Claims16
A method according to the layer of particulate components is deposited on the surface of the substrate by suspending the particulate components in a liquid containing the organic binder dispersed or dissolved therein, depositing liquid suspension on the surface and removing the liquid from the suspension.
A method of making an abrasive body which comprises a layer of bonded ultra-hard abrasive particles bonded to a substrate, including the steps of:
- (i) providing the substrate;
- (ii) depositing a layer of the components necessary to form the layer of bonded ultra-hard abrasive particles, in particulate form, in an organic binder on a surface of the substrate;
- and
- (iii) subjecting the substrate and layer to conditions of elevated temperature and pressure at which the ultra-hard
- abrasive particle is crystallographically stable wherein the layer of particulate components is a coherent, self-supporting layer which is pre-formed and then placed on the surface of the substrate,
- the coherent, self-supporting layer being produced by depositing a coating of the particulate components suspended in a liquid which contains the organic binder dissolved or dispersed therein on to a support surface, removing the liquid from the coating, and heating the thus treated coating.
A method of making an abrasive body which comprises a layer of bonded ultra-hard abrasive particles bonded to a substrate, including the steps of:
- (i) providing the substrate;
- (ii) depositing a layer of the components necessary to form the layer of bonded ultra-hard abrasive particles, in particulate form, in an organic binder on a surface of the substrate;
- and
- (iii) subjecting the substrate and layer to conditions of elevated temperature and pressure at which the ultrahard abrasive particle is crystallographically stable wherein the organic binder is a cellulose derivative
A method of making an abrasive body which comprises a layer of bonded ultra-hard abrasive particles bonded to a substrate, including the steps of:
- (i) providing the substrate;
- (ii) depositing a layer of the components necessary to form the layer of bonded ultra-hard abrasive particles, in particulate form, in an organic binder on a surface of the substrate;
- and
- (iii) subjecting the substrate and layer to conditions of elevated temperature and pressure at which the ultra-hard abrasive particle is crystallographically stable.
- wherein the organic binder is removed from the layer of particulate components prior to step (iii).
Dependencies are inferred from the claim text.