| 摘要 |
PURPOSE:To obtain a metallic traveller for spinning machine excellent in resistance to heat and wear as compared with conventional ones owing to its metallic structure in which fine and uniform carbides are distributed, by forming it by use of a powdered high-speed steel in which respective amounts of C, Cr, V, W+2Mo, and Co are specified and the balance consists of Fe and impurities. CONSTITUTION:The metallic traveller for spinning machine of this invention is formed of a powdered high-speed steel consisting of 1.2-2.0% C, 3.0-5.0% Cr, 4.0-10.0% V, 10-20% W+2Mo, 4-20% Co, and the balance Fe with impurities. A material prepared by compacting and sintering the above powdered high-speed steel is worked into wire rod, which is formed into the shape of prescribed traveller and then formed into metallic structure in which fine and uniform carbides are distributed by heat treatment. In this way, long-lived metallic travellers for spinning machine hardly causing end breakage and thread fluff under the conditions of high productivity and high-speed spinning and excellent in toughness, wear resistance, and heat resistance can be obtained. |
