|
|
|
| Process improvement of electroless to prepare WC-12Ni@Ni-MoS2 self-lubricating composite powders |
| Wang Jinzhi, Liu Xinyu, He Wenbin |
| Department of Metallurgical Engineering, Shanxi Engineering Vocational College, Taiyuan 030000, China |
|
|
|
|
Abstract In order to solve the problems of loose shell, uneven thickness and uneven distribution of elements of WC-12Ni@Ni-MoS2 self-lubricating core-shell structure composite powder, the effects of powder solid content, surfactant type, stirring method and powder particle size on the composite powder in the preparation process of electroless plating were studied. The results showed that HPB cationic surfactant and 7.5 g/L MoS2 self-lubricating powder were added under the condition that the particle size distribution of the powder to be plated was uniform and the range was small at 75 g/L WC-12Ni. The WC-12Ni@Ni-MoS2 core-shell composite powder shell prepared by NiCl2·6H2O as the main salt, DMAB as reducing agent was continuously and quantitatively added, mechanical stirring at 1 200 r/min and electroless plating at 85°C for 20 min was dense, uniform thickness, uniform element distribution, and high test repeatability.
|
|
|
|
|
|
| [ 1 ] Wang Zhihua, Li Wenqian. Study on electroless Ni-P-SiC comp-
osite coating on Q235 Steel Surface [ J ]. Mining Machinery,
2014（ 5）: 124 - 126.
[ 2 ] Wang Changchuan, Wang Rchu, Peng Chaoqun, et al. Research progress of metal-based solid self-lubricating composites [ J ]. The Chinese Journal of Non-Ferrous Metals, 2012 （ 7）: 1 945 - 1 955.
[ 3 ] Shu Kun, Zheng Dezhi, Gu Le, et al. Wear of MoS2 solid lubricati-
on film under impact sliding condition [ J ]. Lubrication & Seals, 2016（ 7）): 70 - 73.
[ 4 ] Zhu Shiwei. Solid dry film Lubricant technology and its Applicat-
ion [ J ]. Aerospace Technology, 2001（ 5）: 20 - 25.
[ 5 ] Li Fenglan, Chen RunZhai, ZHANG Yan. Solid film lubricant for aircraft [ J ]. Journal of Aeronautical Materials, 2006（3）): 345 - 346. |
|
|
|
