In this paper a method that a layer of Cu was cladded on the surface of diamond particle by an appropriate chemically Cu-cladded process was put forward. The method can adjust the thickness of cladding by one step or ...In this paper a method that a layer of Cu was cladded on the surface of diamond particle by an appropriate chemically Cu-cladded process was put forward. The method can adjust the thickness of cladding by one step or multiple steps. The composition and structure of Cu-cladded diamond were analyzed with help of XRD, SEM and EPMA. The results shoe that copper was homogeneously dispersed on the surface of diamond particle by this method, the deposited copper is loosely dispersed by one step cladding process, and the copper is tightly organized by multiple steps cladding process. Copper presents crystalline, and a small amount of oxygen and iron exits ibn copper layers. Wearing test shows that the wear-resisting property of Cu-cladded diamond wheel is superior to that of general diamond wheel, and that of diamond of which Cu-cladded thickness is deposited more thickly by multi-steps cladding process is better.展开更多
用2kw CO 激光和送粉工艺,在4Cr5MoV_1Si 钢表面熔覆一层高温耐磨合金(Ni 基高温合金+WC),并应用于轧钢机导向板工作面。用扫描电子显微镜、电子探针和 x 射线衍射技术分别进行熔覆层的组织形态观察,微区成分分析和物相的鉴定。结果表明...用2kw CO 激光和送粉工艺,在4Cr5MoV_1Si 钢表面熔覆一层高温耐磨合金(Ni 基高温合金+WC),并应用于轧钢机导向板工作面。用扫描电子显微镜、电子探针和 x 射线衍射技术分别进行熔覆层的组织形态观察,微区成分分析和物相的鉴定。结果表明,熔覆层显微组织主要有许多弥散分布的 W_2C、(W,Ti)C_(1-x)、WC 和共晶态的 M_(12)C 及γ(f、c、c)母体相组成。室温及高温硬度测试结果表明,熔覆层有适中的室温硬度和相对较高的高温硬度。实际生产考核结果表明,激光熔覆导向板使用寿命大大提高,每对可轧钢1000～1100吨,而4Cr_5MoV_1Si 和普碳钢分别为400～500吨和200吨。展开更多
文摘In this paper a method that a layer of Cu was cladded on the surface of diamond particle by an appropriate chemically Cu-cladded process was put forward. The method can adjust the thickness of cladding by one step or multiple steps. The composition and structure of Cu-cladded diamond were analyzed with help of XRD, SEM and EPMA. The results shoe that copper was homogeneously dispersed on the surface of diamond particle by this method, the deposited copper is loosely dispersed by one step cladding process, and the copper is tightly organized by multiple steps cladding process. Copper presents crystalline, and a small amount of oxygen and iron exits ibn copper layers. Wearing test shows that the wear-resisting property of Cu-cladded diamond wheel is superior to that of general diamond wheel, and that of diamond of which Cu-cladded thickness is deposited more thickly by multi-steps cladding process is better.
