| 摘要 |
PURPOSE:To improve the productivity etc. of a wear-resistance-required member such as a piston ring and a cylinder liner, by coating a base material such as steel with sintered alloy of powder comprising iron as main constituent and ceramic grains of high melting point. CONSTITUTION:To manufacture a wear-resisting member, a base material which is steel or cast iron is coated with a remelt-alloying layer of iron alloy powder comprising iron as main constituent and 5 to 40% by volume of ceramic grains of high melting point. The layer of the sintered alloy and the base material are heated from outside by a high-density heat source to remelt the sintered alloy and a part of the base material to alloy them with each other. At that time, a heat-influenced layer of hardness not lower than that of ordinary quenched structure is generated under the conjoining layer in which the sintered alloy and the base material are alloyed with each other. |
