An abrasive article with abrasive grain such as corundum, a binder which is a hardenable organic or inorganic system, for example plastic, such as phenol resin, and grinding-active fillers, as well as an abrasive with abrasive grain such as corundum, a binder which is a hardenable organic or inorganic system, for example plastic, such as phenol resin, and grinding-active fillers. The abrasive compound of the abrasive consisting of abrasive grain, binder and the fillers is placed on a flexible substrate, which is formed by a nonwoven fabric. New low-priced fillers with low toxicity are incorporated in the abrasive article and, in fact, metal complex salts with the following structure: where: M.sub.1 =pure metal or mixture of alkali metal, alkaline earth metal and/or Al M.sub.2 =pure metal or mixture of Zn, Mn, Fe except for Fe as chloride Hal=pure halogen or mixture of F, Cl, Br, I Chal=chalcogenides, O and/or S Ph=phosphate or more highly condensed phosphates P.sub.r O.sub.s (r=1 to 10, preferably 1 to 2, s=4 to 20, preferably 4 to 7) u, v, w, x or z=0 to 95%, and the total of u and v=1 to 95%, preferably 20 to 80%, and the total of w, x and z=1 to 95%, preferably 20 to 80%, and that the total of u, v, w, x and z is 100%. These fillers are melted or sintered with each other.
An improved ceramic corundum abrasive is achieved by addition of tin. Preparation is preferably by the sol-gel process, with further modifying components such as magnesium, lithium, cobalt, yttrium, hafnium, iron, rare earths, gamma-aluminium oxide already being present in the sol.
The present invention relates to a flexible abrasive article for grinding or polishing and a method for making the same. The flexible abrasive article has a fabric substrate and at least one abrasive layer provided thereon. The abrasive layer is a composite with an adhesive binder in which diamond particles and metal particles are distributed to form an interpenetrating array of diamond particles and metal particles. It is preferred that the metal particles be about equal to or coarser than the size of the diamond particles. It is still further preferred that the abrasive layer include a distribution of non-metallic filler particles interspersed with the diamond particles and the metal particles. The method of making the flexible abrasive article described above can be accomplished by selecting a fabric substrate, preparing an abrasive coating mixture by first mixing a resin with a volatile carrier, second mixing in the particulate components, and applying the mixture to the substrate in one or more layers.
An abrasive article, and methods of making and using same, containing an inorganic metal orthophosphate salt. The abrasive article including a coated abrasive article having a size or supersize coating layer containing an alkali metal or alkaline earth metal orthophosphate salt devoid of hydrogen. The inventive abrasive article reduces the grinding energy required while improving abrading efficiency in some cases.
An abrasive article, and methods of making and using same, comprising an inorganic phosphate selected from the group consisting of an alkali metal metaphosphate, an alkaline earth metal metaphosphate, and a Group IIIA metal orthophosphate; the inorganic phosphate may be present in a peripheral coating layer of a coated abrasive article, or an abrasive slurry coating in a uniform thickness, or a structured abrasive article.
An abrasive article is provided which includes a peripheral surface formed comprising a grinding aid. The grinding aid is formed from a mixture including an acid and at least one of an inorganic metal phosphate salt or an inorganic metal sulfate salt. The acid is preferably selected so that the mixture forms a film. The abrasive article preferably has sharp abrasive particles. The inventive abrasive article improves grinding efficacy, particularly in titanium grinding processes, as compared to abrasive articles that are substantially devoid of a grinding aid of the present invention. Also provided is a method for making an abrasive article and a method of abrading a surface with an abrasive article.
