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US 12,064,852 B2Granted
Abrasive articles and methods for forming same
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorsSrikanth Rapaka, Nilanjan Sarangi, Roger P. Zaleski
Life of this patent
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Abstract
An abrasive article including a bonded abrasive having a body of a diameter of at least 260 mm and a volume of at least 20 cubic centimeters, the body also having a bond material including an inorganic material, abrasive particles having an abrasive particle size of at least 40 microns contained in the bond material, and a certain Homogeneity Factor.
Claims20
A method of making an abrasive article comprising:
- forming a mixture comprising abrasive particles, a bond precursor material including an inorganic material and a gelling agent, wherein the gelling agent is selected from the group consisting of agar, agarose, xanthan gum, carboxy methyl cellulose, gellan gum, carrageenan gum, guar gum, tara gum, cellulose gum, locust bean gum, or any combination thereof, and wherein the abrasive particles have an average particle size of at least 40 microns;
- adding a cationic agent to the mixture and forming a gel, wherein the cationic agent comprises an inorganic material that cross-links with the gelling agent, and wherein adding the cationic agent initiates crosslinking and formation of the gel;
- forming a green body from the gel;
- and
- forming a bonded abrasive body from the green body.
2 more elements
A method of making an abrasive article comprising:
- forming a mixture comprising abrasive particles, a bond precursor material including an inorganic material and a gelling agent, wherein the gelling agent is selected from the group consisting of agar, agarose, xantham gum, carboxy methyl cellulose, gellan gum, carrageen gum, guar gum, tara gum, cellulose gum, locust bean gum, or any combination thereof;
- adding a cationic agent to the mixture and forming a gel, wherein the cationic agent comprises an inorganic material that cross-links with the gelling agent, and wherein adding the cationic agent initiates crosslinking and formation of the gel;
- forming a green body from the gel;
- and
- forming a bonded abrasive body from the green body,
- wherein the method further comprises heating the mixture to a gelling temperature to form the gel.
3 more elements
A method of making an abrasive article comprising:
- forming a mixture comprising abrasive particles, a bond precursor material and a gelling agent comprising an organic material, wherein the abrasive particles comprises an average particle size of at least 65 microns;
- forming a bonded abrasive body from the mixture, wherein the bonded abrasive body comprises a bond material comprising an inorganic material,
- wherein forming the mixture further includes adding a cationic agent to the mixture to form a gel, wherein the cationic agent comprises a salt that cross-links with the gelling agent.
Dependencies are inferred from the claim text.