The invention relates to a preparation method of high bending strength of nanometer WC-Co alloy powder, the method is: under the vacuum condition, the original WC and Co powder in hard alloy composition ratio of ingredients, using alcohol as ball milling liquid medium, with argon as the shielding gas in the milling and ball milling with hard preparation alloy grinding ball, and the addition of nano rare earth oxide in the grinding process; after drying and sieving to obtain high flexural strength of nano WC-Co hard alloy powder. The invention also discloses the preparation method of the WC-Co alloy product. Preparation of WC-Co alloy powder during ball milling preparation stage, ingredients in vacuum condition, by adding a certain amount of alcohol is used as liquid medium and wet grinding under the protection of argon can effectively prevent the oxidation of the powder, improve the powder composition uniformity and dispersion. By adding nano rare earth oxide modification, the grain growth of WC-Co hard alloy material was inhibited, and the properties of cemented carbide were greatly improved.
【技术实现步骤摘要】
【技术保护点】
一种高抗弯强度纳米WC?Co合金粉末的制备方法，其特征在于：该方法是：在真空条件下，将原始WC、Co粉按照硬质合金的成分比进行配料，以酒精作为球磨液体介质，以氩气作为球磨时的保护气体，采用硬质合金研磨球进行球磨制备，且在研磨过程中添加纳米稀土氧化物；后经干燥、过筛获得高抗弯强度纳米WC?Co硬质合金粉末。
【技术特征摘要】
【专利技术属性】
技术研发人员：张健生，张承熙，
申请(专利权)人：河源泳兴硬质合金有限公司，
类型：发明
国别省市：
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。