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Incheon, South Korea

Deerfos Co. | Date: 2009-11-17

Abrasive paper; abrasive cloth; abrasive sand; sandpaper; emery cloth; and emery paper.

Deerfos Co. and Korea Abrasive Ind. Co. | Date: 2008-02-19

Abrasive paper, abrasive cloth, abrasive sand, sandpaper, emery cloth, and emery paper.

Deerfos Co. | Date: 2008-06-03

Abrasive cloth; Abrasive paper; Abrasive sand.

An abrasive article having a multi-directional abrasion protrusion according to an exemplary embodiment of the present invention includes a flexible base substrate, and a plurality of abrasion protrusions integrally molded with the base substrate and having at least three sides forming a triangle, in which a plurality of abrasion protrusions has a directional property by grouping. According to this constitution, loading resistance and durability are excellent, there are no attachment materials attached to an abraded surface in the case where a flat surface is abraded, abrasion can be efficiently and evenly performed in a predetermined shape even though abrasion particles are not enlarged to perform abrasion or abrasion is not repeated several times by using particulates, and abrasion performance can be improved.

Lee D.H.,Chonnam National University | Lee D.H.,KUZCO LBE Co. | Kim Y.B.,Chonnam National University | Mo S.W.,Deerfos Co. | And 4 more authors.
Industrial Ceramics | Year: 2011

We have investigated the influence of coating of the abrasive particles with thermosetting or thermo-plastic resin on the cutting performance or lifetime of the abrasives both by a direct test using a AWJ system and by an indirect test using a sand belt. Our results show that the coated abrasives offer a shorter cutting time, a lower surface roughness of the cutting section, and a longer life time than the conventional abrasives. The impact strength of the coated abrasives has been found to be far higher than that of the conventional abrasives although there is little difference in hardness between the two kinds of abrasives. In addition, SiC abrasives have been found to be superior to Al2O3 abrasives in cutting performance.

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