| 高性能钼棒制备工艺研究 |
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| 引用本文： | 杨晓维,李高林,王飞,武宇.高性能钼棒制备工艺研究[J].中国钨业,2014(6):50-52. |
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| 作者姓名： | 杨晓维 李高林 王飞 武宇 |
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| 作者单位： | 西安诺博尔稀贵金属材料有限公司,陕西 西安,710210 |
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| 摘 要： | X射线管转轴的高性能钼棒制备是钼材加工中的一个难点,研究选用适宜的钼粉,制定合理烧结工艺,采用特殊的锻造工艺,生产出性能指标达到美国ASTM387-90标准的钼棒。结果表明:采用平均粒度2.2μm,松装密度1.14 g/cm3的钼粉压制后在氢气感应炉中1 920℃烧结3 h后,再采用加热1 2001 400℃,道次加工率24%1 400℃,道次加工率24%2%,总加工率74%,5次模锻的锻造工艺能获得密度为10.2 g/cm3的钼棒,再经900℃保温半小时的消应力退火,可以得到抗拉强度大于620 MPa,延伸率大于30%,组织结构均匀的高性能钼棒。
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| 关 键 词： | 钼粉 钼棒烧结 锻造 力学性能 抗拉强度 延伸率 |
Preparation Technology of High Performance Molybdenum Rod System |
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| YANG Xiao-wei,LI Gao-lin,WANG Fei,WU Yu.Preparation Technology of High Performance Molybdenum Rod System[J].China Tungsten Industry,2014(6):50-52. |
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| Authors: | YANG Xiao-wei LI Gao-lin WANG Fei WU Yu |
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| Affiliation: | (Xi＇an Noble Rare and Precious Metal Materials Co. Ltd., Xi＇an 710210, Shaanxi, China) |
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| Abstract: | Preparation of high-performance X-ray tube molybdenum rod shaft is one of the difficult points of molybdenum processing. Molybdenum rod shaft, whose performance properties conform to US standards ASTM387-90, is produced by sintering and forging processes. Molybdenum powder（average particle size=2.2μm, bulk density=1.14 g/cm3 ） is sintered at 1 920℃for 3 hours in Hydrogen induction furnace. Molybdenum rod （density=10.2 g/cm3） is obtained upon 1200～1400℃heating and 5 times of forging （pass processing rate=24%～2%, total processing rate=74%）. High performance molybdenum rod with uniform organizational structure （tensile strength greater than 620MPa, elongation more than 30%） is produced upon Eliminate stress annealing at 900℃for 30 mins. |
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| Keywords: | molybdenum powder molybdenum rod sintering forging mechanical properties tensile strength elongation |
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