Disclosed are a method of causing abrasive grains to collide against and contact with an object being treated to form surfaces of the object being treated into a matte, specifically, a rotational magnetic field is applied on magnetic abrasive grains to cause the same to vibratingly move at random to collide against and contact with an object being treated to obtain a matte.

 
Web www.patentalert.com

< Method of producing a nanotube layer on a substrate

< Method for producing a halide brine

> Method and installation for the indirect reduction of particulate oxide-containing ores

> Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet
~ 00218