Quality Improvement of Chrome-Diamond Coatings on Flowing Chrome Plating

7th International Scientific and Practical Conference on Innovations in Mechanical Engineering

机械制造;材料科学

Belyaev, V.N.^1 ; Koslyuk, A.Yu.^1 ; Lobunets, A.V.^1 ; Andreyev, A.S.^1

JSC Federal Research and Production Center, ALTAI, Socialisticheskaya, 1, Biysk, Russia^1

关键词: Coating application;    Cylindrical articles;    Electrolyte temperature;    Internal surfaces;    Precipitation structure;    Quality improvement;    Research results;    Technological parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/126/1/012002/pdf
DOI  :  10.1088/1757-899X/126/1/012002

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The research results of the process of flowing chrome plating of internal surfaces of long-length cylindrical articles with the usage of electrolyte with ultra-dispersed diamonds when continuous article rotation, while chromium-plating, are presented. During experiments the following varying technological parameters: electrolyte temperature and article frequency rotation were chosen, and experimental samples were obtained. Estimation of porosity, micro-hardness, thickness of chrome coatings and uniformity were performed as well as the precipitation structure by the method of scanning electron microscopy. The results showed that the use of ultra-dispersed diamonds and realization of the scheme with rotation of detail-cathode when flowing chromium-plating allows one to increase servicing characteristics of the coating due to the decrease of grains size of chrome coating and porosity, and due to the increase of micro-hardness, so confirming the efficiency of using the suggested scheme of coating application and the given type of ultra-dispersed fillers when chromium-plating.