Features of the implement of cadmium-based Electroplating coatings

Abstract

The rapid economic, scientific and technical development of the Republic of Kazakhstan in order to achieve the modern level of technological development requires a wide production of metal products and equipment using technically and economically effective methods. For this purpose, one of the main ways of producing corrosion-resistant and efficient metal products and parts is cadmium plating. Cadmium plating is flexible, easily amenable to rolling, stamping, bending, freshly prepared sheathing is better welded on acid-free fluxes than zinc. A study of the technology of cadmium tape made of stainless steel grade 2X18Н10T. A comparative analysis of the types and composition of cadmium electrolytes was carried out. The factors affecting the quality of the resulting packaging are investigated, the calculation of the observed main indicators of products after electrolysis is carried out. It is established that the quality of the coating undergoes changes depending on the composition of the electrolyte, its temperature and current density. The surfactant contributed to the production of a durable packaging layer with the possibility of increasing potency during use. Including work with such surfactants as dextrin, gelatin, carpentry glue. It was seen that the cadmium-coated tape has no gloss unless a surfactant is used. It was found that when the current is overvoltage, the tape is covered with fine-grained granules and darkens. When the tape was cadmated, the cadmium layer deposited on the surface of the tape increased with increasing time.