【摘要】 用粉末冶金工艺,开发了一种代号为GSQ₃的电磁无心夹具支点材料,是一种可焊接、无磁、耐磨的减摩材料。实践证明,用GSQ₃作无心夹具支点,完全可以消除“划伤”现象,其使用寿命与硬质合金的相当,为夹布胶本的10倍左右,经济效益显著。更多还原

【Abstract】 A material GSQ₃ for electro-magnetic centreless chuck shoes ismade by powder metallurgy.GSQ₃ is antifriction material which is weldable,nonmagnetic and wear resistant.Results shows that“scratch”on the supportingsurface of workpiece does not appear when GSQ₃ chuck shoes was used.Theworking life of GSQ₃ is as long as that of carbide alloy and is adout ten timesas great as that of fabroil.更多还原