研磨刷

Polishing brush

Abstract

A polishing brush (1) comprises: abrasive material bundles (22) in which multiple linear abrasive materials (21), obtained by impregnating and solidifying resin in aggregated fibers of inorganic filaments, are bundled; and an abrasive material holder (23) for holding the multiple abrasive material bundles (22). A circular abrasive material-holding groove (28) is formed in the abrasive material holder (23) and an adhesive (29) is filled in the abrasive material-holding groove (28). The respective base end portions (22a) of the multiple abrasive material bundles (22) are inserted in the abrasive material-holding groove (28) mutually separated from each other and are fixed in the abrasive material holder (23) by the adhesive (29). Even when the diameter, etc. of the abrasive material bundle (22) is larger than the width of the groove, the abrasive material bundle (22) can be inserted in the groove by deforming the abrasive material bundle (22) to conform to the groove.
研磨刷(1)包括:由多根线状研磨材料(21)捆绑而成的研磨材料束(22),线状研磨材料(21)是通过将树脂浸渍于无机长纤维的聚合线中并使之固化而成的;以及保持多根研磨材料束(22)的研磨材料支架(23)。研磨材料支架(23)上形成有圆环状的研磨材料保持沟槽(28),研磨材料保持沟槽(28)内填充有粘接剂(29)。多根研磨材料束(22)以互相间隔的状态将各自的基端部分(22a)插入研磨材料保持沟槽(28)内,并且通过粘接剂(29)固定在研磨材料支架(23)上。即使研磨材料束(22)的直径尺寸等比沟槽的宽度大时,通过使研磨材料束(22)沿着沟槽变形也可以将研磨材料束(22)插入沟槽内。

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