本发明涉及一种连续感应式快淬炉用辊轮及其制造方法，属于难熔金属粉末冶金与变形加工领域。辊轮为纯钼或REO掺杂钼合金材质，外径400~800mm、壁厚15~60mm、相对密度不低于99.5%、抗拉强度不低于500MPa。其制造方法是以湿法高纯化或液-液、固-液法稀土氧化物均匀掺杂处理的钼及钼合金粉为原料，经冷等静压压制环坯、氢气高温烧结、粗车加工、环锻或闭式模锻，再经氢气退火处理，最后进行精密机加工。本发明的辊轮成分均匀、致密度高、强韧性好、耐热疲劳性优，其作为稀土粘结磁粉生产用核心装备大型连续感应式快淬炉的重要部件，并可扩展应用于铁基软磁非晶合金、热电材料等的研制和生产。

The invention relates to a roller for a continuous induction type rapid quenching furnace and a manufacturing method thereof, belonging to the field of refractory metal powder metallurgy and deformation processing. The roller is made of pure molybdenum or REO-doped molybdenum alloy, with an outer diameter of 400~800mm, a wall thickness of 15~60mm, a relative density of not less than 99.5%, and a tensile strength of not less than 500MPa. Its manufacturing method uses molybdenum and molybdenum alloy powder with high purification wet method or liquid-liquid and solid-liquid rare-earth oxide uniform doping treatment as raw materials, ring blanks by cold isostatic pressing, hydrogen high-temperature sintering, and rough turning processing , Ring forging or closed die forging, then hydrogen annealing treatment, and finally precision machining. The roller of the present invention has uniform composition, high density, good strength and toughness, and excellent thermal fatigue resistance. It is an important part of a large continuous induction rapid quenching furnace for the production of rare earth bonded magnetic powder, and can be extended to be applied to the development and production of iron-based soft magnetic amorphous alloys, thermoelectric materials, etc.