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自润滑热镀锌汽车板的性能分析 被引量:4
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作者 赵晓非 贾松 +2 位作者 苗雨芳 黎敏 汪小培 《电镀与涂饰》 CAS CSCD 北大核心 2017年第20期1069-1074,共6页
在热镀锌汽车板表面涂覆无机自润滑涂层后对材料的成型性能、焊接性能、胶接性能、耐蚀性能等进行分析。结果显示,自润滑膜能够在冲压过程中对锌层提供较好的保护,从而有效提升热镀锌板的成型性能。自润滑热镀锌汽车板的耐蚀性能、连接... 在热镀锌汽车板表面涂覆无机自润滑涂层后对材料的成型性能、焊接性能、胶接性能、耐蚀性能等进行分析。结果显示,自润滑膜能够在冲压过程中对锌层提供较好的保护,从而有效提升热镀锌板的成型性能。自润滑热镀锌汽车板的耐蚀性能、连接性能等均能够满足汽车主机厂的相关认证要求。 展开更多
关键词 热镀锌板 自润滑涂层 成型性 胶接强度 耐蚀性 可涂性
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Comparative study of microstructure and corrosion resistance of electroless Ni-W-P coatings treated by laser and furnace-annealing 被引量:6
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作者 刘宏 郭荣新 +2 位作者 宗云 何冰清 刘铸 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2010年第6期1024-1031,共8页
A comparative study of amorphous electroless Ni-W-P coatings on mild steel substrate treated by a high power diode laser and furnace annealing was presented.Effects of different laser operating parameters and furnace-... A comparative study of amorphous electroless Ni-W-P coatings on mild steel substrate treated by a high power diode laser and furnace annealing was presented.Effects of different laser operating parameters and furnace-annealing conditions on microstructures,in terms of crystallisation,pores formation and grain growth,were investigated using SEM/EDX and XRD. Corrosion behaviours of these coatings before and after various treatments were evaluated with anodic polarisation in 0.5 mol/L H2SO4 solution.The results show that the furnace-annealing produces either a mixture of nanocrystallined Ni and amorphous phases or precipitated Ni3P phase distributed in nanocrystallined Ni-based matrix,depending on annealing temperatures,whilst the laser treatment under the operating conditions only produces nanocrystallined Ni-based matrix with Ni3P precipitates.Corrosion performance of the coatings treated by both the laser and the furnace-annealing is dependent on the annealing temperature and laser operating conditions.Corrosion mechanisms of various treated-coatings were discussed in the consideration of phase constitutes and proportion,grain sizes of both Ni and Ni3P phases,pores formation and residual stresses. 展开更多
关键词 electroless Ni-W-P coating laser-treatment ANNEALING nano-crystallization corrosion
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Improvement on Performances of Internal Combustion Engine Using the Technology of Ceramic Coating
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作者 林建生 付晓光 张建昭 《Transactions of Tianjin University》 EI CAS 2003年第4期345-347,共3页
This paper introduces a new technology of using ceramic coating on piston rings of an internal combustion engine, and the comparison of mechanical efficiency and performances of an actual engine before and after the a... This paper introduces a new technology of using ceramic coating on piston rings of an internal combustion engine, and the comparison of mechanical efficiency and performances of an actual engine before and after the application of ceramic coating on the piston rings. The experimental results show that the mechanical efficiency and power output are enhanced by 4% and 2.6%, respectively, with fuel consumption reduced by (2.9%.) Further studies on coating processing and coating materials as well as the reliability and durability will be of great significance in the application and popularization of the new technology. 展开更多
关键词 ceramic coating internal combustion engine mechanical efficiency
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Super-hydrophobic and super-lipophilic functionalized graphene oxide/polyurethane sponge applied for oil/water separation 被引量:9
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作者 Huiwen Meng Tao Yan +1 位作者 Jingang Yu Feipeng Jiao 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2018年第5期957-963,共7页
Nowadays, oil spills have led to a serious environmental crisis of the world. To deal with this problem, inspired from super-hydrophobic lotus leaf, this study fabricated super-hydrophobic and super-lipophilic functio... Nowadays, oil spills have led to a serious environmental crisis of the world. To deal with this problem, inspired from super-hydrophobic lotus leaf, this study fabricated super-hydrophobic and super-lipophilic functionalized graphene oxide/polyurethane (FGP) sponge by a simple and inexpensive dip coating method. The resulting FGP sponge was characterized by infrared spectroscopy, X-ray diffraction, scanning electron microscopy and water contact angle. The results expressed that FGP sponge exhibited a similar surface structure to that of a lotus leaf, and possessed the super-hydrophobic characteristic with the water contact angle (WAC) of 152°± 1 °. The absorption capacity and reusability were also investigated. It can be seen that, the FGP sponge can remove a wide range of oils and organic solvents from water with good absorption capacities (up to 35 times of its own mass). Significantly, after 10 cycles the absorption capacity of the oils and organic solvents was higher than 90°; for the reused FGP sponge, demonstrating the good reusability of the FGP sponge. Therefore, this study probably provided a simole way to remove the pollutions ofoil spills and toxic organism from water. 展开更多
关键词 Graphene oxide n-Dodecyltrimethoxysilane Polyurethane sponge SUPER-HYDROPHOBICITY Oil/water separation
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