一种弱织构高效毁伤功能钽构件制备方法
By employing processes such as warm forming, cold forming, vibration aging, and vacuum heat treatment, the problems of uneven stress distribution and non-uniform microstructure on the inner and outer contours of tantalum propellant liner were solved, enabling the preparation of highly efficient damaged tantalum components and improving material utilization and production efficiency.
CN117655138BActive Publication Date: 2026-07-17SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP
- Filing Date
- 2023-12-07
- Publication Date
- 2026-07-17
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Figure CN117655138B_ABST
Abstract
本发明提供了一种弱织构高效毁伤功能钽构件制备方法，步骤包括：坯料制备，坯料和模具加热，实施2~3道次温成形，实施2~4道次的冷成形，药型罩粗加工件分别进行振动时效处理，药型罩粗加工件进行真空热处理，实施1~2道次的冷变形，将所得精整形钽药型罩进行真空退火处理。本发明能够实现高效毁伤功能钽药型罩成形过程尺寸精度和内部组织的精确控制，释放和均化药型罩不同部位的应力，保证组织性能以及尺寸的稳定性；能够获得均匀、细小和弱织构的等轴细晶组织，不同部位的应力水平低且分布均匀，本发明克服了常规制备方法获得的构件尺寸精度低、内部晶粒择优取向严重、应力分布不均等技术难题，同时还具有材料利用率高、工艺稳定性好等优点。
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