Modernization of a Chemical Nickeling Unit for Metal Products

Andrey Borisenko,Yulia Nemtinova,Vadim Khramtsov,Vladimir Nemtinov,S Bratan,S Roshchupkin

doi:10.1051/matecconf/202134601027

Andrey Borisenko, Yulia Nemtinova + Show 4 more

Open Access

https://doi.org/10.1051/matecconf/202134601027

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Abstract

Metal protective coatings have a number of advantages, including high corrosion resistance, resistance to mechanical stress, and attractive appearance. The article analyzes the requirements for technological equipment for chemical nickel plating of items made of carbon steels, aluminum, titanium, copper and their alloys. The disadvantages of standard equipment (chemical nickel-plating units functioning as separate technological units) during its operation as a part of a plating line are formulated. The results of modernization and design development for an improved unit for chemical nickel plating of metal products with repeated use of the plating solution are presented. The calculation of the walls’ strength, thermal calculation of tubular electric heaters, the calculation of a single-side suction without blowing with a suction gap in the horizontal plane were performed. Pneumatic cylinders with the required working force and stroke were selected. The modernized unit is more compact, easier to maintain, and its design allows it to function as a part of a plating line. Testing of the unit in a plating section of a real manufacturing facility showed its high efficiency.

Highlights

Every year, because of corrosion, engineering structures, ships, machines, apparatuses and other devices prematurely fail, and various accidents may occur [1]
This article focuses on modernization of the unit for chemical nickel plating for products made of carbon steels, aluminum, titanium, copper and their alloys with repeated use of the plating solution [13], [14]
The design and characteristics of a standard chemical nickel plating plant did not meet the necessary requirements due to the following reasons: 1) Configuration and location of pipe fittings, controls and other key elements of the unit did not fit well into the designed plating line; 2) To prevent the process of chemical nickel plating on solid particles of dirt deposited on the bottom, the standard unit provides for cooling the bottom of the bath with running water

Summary

Introduction

Because of corrosion (destruction due to electrochemical or chemical effects of the environment), engineering structures, ships, machines, apparatuses and other devices prematurely fail, and various accidents may occur [1]. To reduce metal losses and protect products from corrosion, along with the use of chemically resistant materials, various types of protective coatings are widely used for isolating metal product from the environment and thereby preventing its contact with air oxygen, water, etc. It is possible to identify metal protective coating (copper, tin, zinc, chromium etc.), chemical (strong film of oxides, phosphates, etc.) and non-metal - (varnishes, paints, resin, enamel, etc.). It is necessary to take into account the specifics of a particular production including the size and layout of the shop or site, design and location of electroplating baths, presence or absence of the required auxiliary equipment (pumps, heat exchangers, filter units, etc.), location of water supply, power supply and ventilation systems [8]–[11]. This article focuses on modernization of the unit for chemical nickel plating for products made of carbon steels, aluminum, titanium, copper and their alloys with repeated use of the plating solution [13], [14]

Requirements for technological equipment

Modernization of a chemical nickel plating unit

Development of the unit’s body

Findings

Сonclusion