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CN104384861A 一种耐高温腐蚀和耐磨损传送辊制造方法 无效 - 撤回

一种耐高温腐蚀和耐磨损传送辊制造方法
摘要：
一种耐高温腐蚀和耐磨损传送辊制造方法，属于轧钢热轧传送辊制造方法。所述的耐高温耐磨损传送辊由中碳钢辊子本体和金属陶瓷辊子工作面两种材料制造成型。辊子本体由中碳钢厚壁钢管与安装辊芯焊接而成，提供辊体转动、支撑、传送等性能；辊子工作面处于传送辊的两个端头，在直径方向为2～6mm的NiCrMo-WC合金，通过超音速火焰喷涂或超音速等离子喷涂成型。NiCrMo-WC合金由4.0～5.5％C、10.5～15.5％Ni、1.5～15.0％Cr、1.0～2.0％Mo、0.5～1.5％Fe、余为W组成，NiCrMo-WC通过真空熔炼、气雾化成型球状颗粒粉末材料。优点：具有耐高温腐蚀、耐磨损性能，使用寿命长久。
摘要（英）：

The invention provides a method for manufacturing an abrasion-proof conveying roll with high-temperature erosion resistance and belongs to a method for manufacturing a conveying roll for steel rolling and hot rolling. The abrasion-proof conveying roll with high-temperature erosion resistance is manufactured and molded from a medium steel roll body and metal ceramic roll working surfaces; the roll body is formed by welding a medium steel thick wall steel pipe and a mounting roll core, and properties of rotation, support, conveying and the like of the roll body are provided; the roll working surfaces are positioned at two ends of the conveying roll, NiCrMo-WC alloy of 2-6mm is adopted in the radial direction, and the roll working surfaces are formed by virtue of supersonic flame spray coating or supersonic plasma spray coating. The NiCrMo-WC alloy is composed of 4.0-5.5% of C, 10.5-15.5% of Ni, 1.5-15.0% of Cr, 1.0-2.0% of Mo, 0.5-1.5% of Fe and the balance of W and is a spherical particle powdered material formed by virtue of vacuum melting and gas atomization. The conveying roll has the advantages of high-temperature erosion resistance, abrasion-proof property and long service life.

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