| 大尺寸亚微米硬质合金顶锤的热等静压研制 |
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| 引用本文： | 刘文彬,陈飞雄,裴新军,熊宁,王铁军. 大尺寸亚微米硬质合金顶锤的热等静压研制[J]. 稀有金属与硬质合金, 2020, 0(2): 82-89 |
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| 作者姓名： | 刘文彬 陈飞雄 裴新军 熊宁 王铁军 |
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| 作者单位： | 阳江职业技术学院机电系;安泰科技股份有限公司 |
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| 摘 要： | 以超细晶WC-Co喷雾干燥混合粉为原料,通过成形、脱蜡、真空烧结和热等静压(HIP)等工序制备出?160 mm以上的大尺寸YG10X亚微米硬质合金顶锤。研究了真空烧结与HIP处理相匹配工艺,以及不同脱蜡气氛对顶锤组织和性能的影响。采用200～300℃×40 h缓慢的氢气连续脱蜡、匹配的烧结工艺辅以1 380℃热等静压制得的?188 mm顶锤,其组织均匀,晶粒细小,性能稳定,各部位横向断裂强度均高于4 100 MPa,顶锤平均使用寿命在9 000～11 500次以上。
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| 关 键 词： | 硬质合金 大尺寸顶锤 热等静压 氢气脱蜡 真空烧结 显微组织 力学性能 |
Preparation of Large-size Submicro-grained Cemented Carbide Anvils by Hot Isostatic Pressing |
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| LIU Wen-bin,CHEN Fei-xiong,PEI Xin-jun,XIONG Ning,WANG Tie-jun. Preparation of Large-size Submicro-grained Cemented Carbide Anvils by Hot Isostatic Pressing[J]. Rare Metals and Cemented Carbides, 2020, 0(2): 82-89 |
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| Authors: | LIU Wen-bin CHEN Fei-xiong PEI Xin-jun XIONG Ning WANG Tie-jun |
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| Affiliation: | (Department of Electric Engineering,Yangjiang Polytechnic,Yangjiang 529566,China;Advanced Technology&Materials Co.,Ltd.(AT&M),Beijing 100081,China) |
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| Abstract: | YG10 X submicro-grained cemented carbide anvils with large-scale size above ?160 mm were prepared by compacting,dewaxing,vacuum sintering and hot isostatic pressing(HIP) treatment,using ultrafine-grained WC-Co spray-dried mixed powders as starting materials.The effects of the matched process of vacuum sintering with HIP treatment and different dewaxing atmosphere on properties and microstructure of the anvils were investigated.The ?188 mm anvil prepared by 200~300 ℃×40 h slow hydrogen continuous dewaxing and matched sintering process supplemented by 1 380 ℃ hot isostatic pressing has uniform microstructure,fine grains and stable performance,its transverse fracture strength of each part is higher than 4 100 MPa,and average service life is longer than 9 000~11 500 times. |
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| Keywords: | cemented carbide large-size anvil hot isostatic pressing hydrogen dewaxing vacuum sintering microstructure mechanical property |
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