一种原位生成Ni3Al的WC硬质合金的制备方法
By doping rare earth salts and using heat treatment techniques in WC cemented carbide, the precipitation of Ni3Al is promoted, which solves the problem of insufficient toughness of WC-Ni cemented carbide under high temperature environment, improves the high temperature performance and corrosion resistance of the alloy, simplifies the preparation process, and is suitable for fields such as steel rolls, guide rollers, and mechanical seal rings.
CN121538538BActive Publication Date: 2026-07-17JIANGXI UNIV OF SCI & TECH +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGXI UNIV OF SCI & TECH
- Filing Date
- 2025-11-19
- Publication Date
- 2026-07-17
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Abstract
本发明属于硬质合金制备技术领域。本发明提供了一种原位生成Ni3Al的WC硬质合金的制备方法，包含将碳化钨、氮化铝、金属镍、稀土盐和炭黑混合后，加入石蜡粘合剂进行湿磨，得到的粉末顺次进行干燥、过筛和压制，得到压胚；将压胚顺次进行脱蜡和烧结，得到合金；将合金进行热处理，得到原位生成Ni3Al的WC硬质合金步骤。本发明提供了一种原位生成Ni3Al沉淀强化粘结相的WC硬质合金的制备方法，制得的WC硬质合金可用于较高环境温度、或对硬质合金具有较高的耐磨性与高温强度要求的工况。
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