| 引用本文: | 吴焕龙,彭科普,向旭,王威,宋久鹏.超细钨铜复合粉末注射成型药型罩研发及测试[J].材料科学与工艺,2017,25(4):91-96.DOI:10.11951/j.issn.1005-0299.20160309. |
| WU Huanlong,PENG Kepu,XIANG Xu,WANG Wei,SONG Jiupeng.Development and performance test of tungsten-copper shaped charge liners by metal injection moulding of ultrafine composite powder[J].Materials Science and Technology,2017,25(4):91-96.DOI:10.11951/j.issn.1005-0299.20160309. |
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| 超细钨铜复合粉末注射成型药型罩研发及测试 |
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吴焕龙1,2, 彭科普2,向旭2,王威3,宋久鹏3
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(1.重庆大学 机械工程学院,重庆 400044;2.四川石油射孔器材有限责任公司,四川 内江 642177; 3.厦门钨业股份有限公司国家钨材料工程技术研究中心,福建 厦门 361026)
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| 摘要: |
| W-Cu合金结合了钨的高密度与铜的高动态延伸率，是一种前景广阔的药型罩材料.为获得性能优良的金属射流，提高油气井射孔弹的穿孔指标，对高致密均质W-Cu合金药型罩进行了研发.采用热化学工艺开发了不同含铜率(质量分数为10%，15%，20%，25%)的亚微米级超细W-Cu复合粉末，选W-25Cu型复合粉末并采用注射近净成型工艺技术制备了药型罩，将脱脂件在H2气氛中烧结，峰值温度为1 200 ℃.采用SEM观察发现，烧结药型罩微观结构为亚微米级的W粒子均匀地分布在Cu基体中，其实测密度高达14.75 g/cm3.拉伸试验表明，所开发的药型罩材料具有优良的力学性能，极限抗拉强度达到822.4 MPa，屈服强度达807.5 MPa，延伸率为1.18%.破甲性能测试实验证明，该类药型罩具有极其稳定的侵彻性能.
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| 关键词: W-Cu药型罩 超细复合粉末 注射成型 组织和性能 混凝土侵彻 |
| DOI：10.11951/j.issn.1005-0299.20160309 |
| 分类号:TB331；TJ410.3+33；TE257+.1 |
| 文献标识码:A |
| 基金项目: |
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| Development and performance test of tungsten-copper shaped charge liners by metal injection moulding of ultrafine composite powder |
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WU Huanlong1,3, PENG Kepu3,XIANG Xu3,WANG Wei2,SONG Jiupeng2
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(1.College of Mechanical Engineering,Chongqing University,Chongqing 400044,China; 2.Sichuan Petroleum Perforating Materials Co.,Ltd,Neijiang 642177,China; 3.China National R&D Center for Tungsten Technology, Xiamen Tungsten Co.,Ltd,Xiamen 361026,China)
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| Abstract: |
| Tungsten-copper (W-Cu) is an attractive material for shaped charge liner due to the combination of the high density of W and the good plasticity of Cu. In order to improve penetration indexes of perforating charges by obtain metal jet with excellent performance, the W-Cu liner with high degree homogeneity and relative density was developed.A series of submicron W-Cu composite powder with different Cu content from 10%~25% has been developed by thermo-chemical process. With the utilization of metal injection moulding(MIM), a type of near net-shaping shaped charge liner in W-25Cu has been prepared.The debinded parts were then sintered in Hydrogen atmosphere at the peak temperature of 1 200 ℃.After being sintered, the measured density of W-25Cu liner reached 14.75 g/cm3.Tensile test indicated that the developed liner possessed excellent material mechanical properties, ultimate tensile strength 822.4 MPa, Yield strength 807.5 MPa, Elongation 1.18%.The resulted material observed by SEM has a microstructure with the submicron W particles distributing homogeneously in the Cu matrix.The ballistic test showed the shaped charge W-25Cu liner by metal injection moulding of ultrafine composite powder with a high stable performance to penetrating into concrete target.
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| Key words: W-Cu shaped charge liner ultrafine composite powder metal injection moulding microstructures and properties concrete penetration |
