提高床身导轨硬度,以延长机床寿命,是机床制造行业的重大课题之一,国内外都在进行探索研究。概括起来不外以下三种途径: 1)提高铸铁耐磨性。如密烘铸铁,高磷铸铁,合金铸铁等; 2)热处理铸件。如火焰淬火,高频淬火,电接触淬火等; 3)复盖耐磨层。如镶钢或塑料板,喷镀钢及塑料,电镀 Improve the hardness of the bed rail to extend the life of the machine tool is one of the major topics in the machine tool manufacturing industry, both at home and abroad to explore. To sum up nothing more than the following three ways: 1) improve the wear resistance of cast iron. Such as bake cast iron, high phosphorus cast iron, alloy cast iron, etc .; 2) heat treatment castings. Such as flame quenching, high frequency quenching, electrical contact quenching, etc .; 3) cover the wear layer. Such as inlaid steel or plastic board, spray steel and plastic, electroplating