一种高强度硬质合金材料及其制备方法
By combining cobalt powder, tungsten carbide powder, reinforcing components, and refining agents, the problem of grain growth during the sintering process of nano-WC-Co cemented carbide was solved, achieving high strength and high toughness of the cemented carbide and improving its overall performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PENG TUNGSTEN ALLOY (SHANDONG) CO LTD
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
During the sintering process, the grains of nano-WC-Co cemented carbide tend to grow, leading to a decline in performance. Existing technologies that add nano-sized vanadium carbide reduce the ability of the cobalt phase to wet tungsten carbide, thus affecting mechanical properties.
By combining cobalt powder, tungsten carbide powder, reinforcing components, and refining agents, and through ball milling, spray granulation, compaction, and spark plasma sintering processes, combined with the use of materials such as aluminum dihydrogen phosphate, silica sol, cerium oxide, zirconium oxide, tantalum carbide, molybdenum carbide, and hydroxylated chromium oxide, a steric hindrance layer and chemical bonding are formed, refining the grains and improving the strength and toughness of cemented carbide.
It effectively inhibits tungsten carbide grain growth, improves the hardness, toughness, impact resistance and wear resistance of cemented carbide, and significantly enhances its overall performance.
Smart Images
Figure SMS_1