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首页> 外文会议>2003 International Thermal Spray Conference Vol.1; May 5-8, 2003; Orlando, Florida, USA >New Composite Coatings on the Base of Recycled Hardmetals
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New Composite Coatings on the Base of Recycled Hardmetals

机译：再生硬质合金基础上的新型复合涂层

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摘要

A new class of composite powders for thermal spray on the base of recycled hardmetal powder is proposed. WC-Co hardmetal powder that is either alloyed/mixed, coated, agglomerated or cladded with binder metal - cobalt enhances the technological properties of spraying powders and enables the producing of sprayed composite coatings with double-cemented structure. The manufacturing technology of WC-Co/Co composite powders composed of mixing, agglomerating, sintering and crushing was studied and characteristics of the produced spray powders by particle size, morphology of particles and specific surface area were evaluated. The experiments for deposition of coatings by high velocity spraying processes (HVS), detonation gun (DG) spraying and High Velocity Oxy-Fuel (HVOF) spraying were carried out. Comparison abrasive erosion wear tests of sprayed coatings were performed.
机译：提出了一种在再生硬质合金粉末基础上的新型热喷涂复合粉末。 WC-Co硬质合金粉末与粘结剂金属合金化/混合，涂覆，团聚或包覆，钴可增强喷涂粉末的技术性能，并能够生产具有双胶结结构的喷涂复合涂层。研究了混合，团聚，烧结，粉碎组成的WC-Co / Co复合粉体的制备工艺，并从粒径，颗粒形貌和比表面积等方面对制备的喷雾粉体的特性进行了评价。进行了高速喷涂（HVS），爆轰枪（DG）喷涂和高速氧燃料（HVOF）喷涂的涂层沉积实验。进行了喷涂涂层的比较磨蚀磨损测试。

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