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    • 6. 发明专利
    • Abrasive material and manufacture thereof
    • 研磨材料及其制造
    • JPS59118374A
    • 1984-07-09
    • JP23208482
    • 1982-12-24
    • Kanai Hiroyuki
    • TAKIGAWA HISAYUKI
    • B24D11/00B24D3/20B24D18/00B29C59/00B29C65/00B29C67/20
    • B29C44/5663B24D18/0045
    • PURPOSE:To manufacture easily the grinding material of good quality, which has high elasticity and cushioning property, by a method wherein the gaps of entangled fibers are filled with resin expandable bodies uniformly. CONSTITUTION:Natural or chemical fiber webs 2 are laminated on an open-cell foamed body sheet layer 3 and the fibers of the webs 2 are buried perfectly substantially into the foamed body sheet 3 by punching by a needle punch machine 5 under the condition of punching depth of more than 10mm. and punching number of more than 50P/cm in order to form an integral base material 8 in which the fibers are entangled and complicated mutually in the foamed construction 7. Subsequently, a synthetic resin binder 23, such as phenol, epoxy, urethane or the like, containing abrasive grains 22 is impregnated into the base material 8 in an impregnating bath 9 or is sprayed thereon while the base materials 8 are rolled into a roll or punched and laminated into a predetermined from when the binder 23 is wet still to obtain the abrasive material 19 having high elasticity and cushioning property by drying and heat-treating after compressing them to a desired density.
    • 目的:通过其中缠结纤维的间隙均匀地填充有树脂可膨胀体的方法,容易地制造具有高弹性和缓冲性的高质量的研磨材料。 构成:将天然或化学纤维网2层合在开孔泡沫体层3上,并且在冲压条件下通过针刺机5冲压将网2的纤维基本上完全埋入发泡体片3中 深度大于10mm。 冲孔数大于50P / cm 2,以形成一体的基材8,其中纤维在发泡结构7中相互缠结和相互复合。随后,合成树脂粘合剂23如苯酚,环氧树脂, 含有磨粒22的氨基甲酸乙酯等在浸渍浴9中浸渍到基材8中,或者在将基材8卷成辊或冲压成层压成预定时,从粘合剂23变湿 通过干燥和热处理将其压缩至所需的密度,获得具有高弹性和缓冲性能的研磨材料19。