VCI-Services

Eino Vuorinen Consultancy is continually proven to be an industry leader in the field of vapor phase corrosion inhibitors

VCI-Services

Aeronautical; Automotive; Metal; Military; Mining; Electronic and Electrical industries

VCI-Services

Eino Vuorinen Consultancy is continually proven to be an industry leader in the field of vapor phase corrosion inhibitors

VCI-Services

Aeronautical; Automotive; Metal; Military; Mining; Electronic and Electrical industries

Overview

During manufacture, storage and transport, corrosive substances in the environment easily attack metal items. These attacks can be prevented in two ways: the environment can be controlled or suitable packaging materials containing corrosion inhibitors can be used. Corrosion inhibitors when added to corrosive environments will drastically reduce corrosion rates. Vapor phase corrosion inhibitors or volatile corrosion inhibitors (VCIs) also called vapor phase corrosion inhibitors (VPIs), are similar to the organic adsorption type inhibitors, but they possess a high vapor pressure. VCIs are transferred to the surface of the metal to be protected by a sublimation and condensation process.

The Objective

VCI-service center will offer advice, source products and test VCI-products for:

  • Aeronautical companies
  • Automotive industry
  • Metal packaging companies
  • Military
  • Mining companies
  • Electronic and electrical industries

The Solution

  • Advice on VCI-products for your needs to protect mild steel, galvanized steel, copper and aluminum items during transport and storage (E. Vuorinen, E. Kálman and W. Focke, Surface Engineering 20(2004) 281-284.
  • Testing of VCI-products using internationally approved testing method (E. Vuorinen and A. Botha, Measurement 46(2013)3612-3615.

What is a Corrosion Inhibitor?

A corrosion inhibitor is a chemical compound that, when added to a liquid or gas, decreases the corrosion rate of a material, typically a metal or an alloy.

The effectiveness of a corrosion inhibitor depends on fluid composition, quantity of water, and flow regime. A common mechanism for inhibiting corrosion involves formation of a coating, often a passivation layer, which prevents access of the corrosive substance to the metal. Permanent treatments such as chrome plating are not generally considered inhibitors, however. Instead corrosion inhibitors are additives to the fluids that surround the metal or related object.

  • The nature of the corrosive inhibitor depends on the material being protected, which are most commonly metal objects, and
  • on the corrosive agent(s) to be neutralized. The corrosive agents are generally oxygen, hydrogen sulfide, and carbon dioxide. Oxygen is generally removed by reductive inhibitors such as amines and hydrazines.

Contact us

Contact International: +27 83 259 2986
Contact Local:  083 259 2986
E-mail: info@vci-services.co.za

Address

VCI-Services
79 Silver Willows
197 Furrow Rd
Equestria
Pretoria | 0184