Galvanizing of flanges
Standard flanges are used in a wide variety of engineering designs and serve to perform strong and tight connections of different parts. Most often it is a question of fastening of the sites of the pipelines used for transportation of gas, water, fuels and lubricants and other materials. Since the flanges are parts that are attached to the outside of the structures, special requirements are imposed on them, including corrosion resistance.
Modern galvanizing allows you to create a shell that protects the parts for many years. The technology has spread for a long time and is used almost always due to a number of advantages:
- increasing the service life of the metal several times;
- it is possible to apply a uniform coating on the elements of any shape;
- after galvanizing there is no need for additional treatment;
- the units used in the application of the shell have a high productivity;
- galvanized elements do not require frequent maintenance.
Thus, galvanizing flanges can solve a lot of problems associated with the operation of pipelines and other metal structures in places with a high probability of corrosion.
The technology of galvanizing
For galvanizing flanges and other parts made of metal, it is possible to use different methods of processing, among which the most popular are:
- electrolytic galvanizing;
- thermal spray;
- cold and hot-dip galvanizing.
Taking into account the quality requirements of the finished product, as well as the speed and cost of processing, the company “EZI” performs work on the technology of hot dip galvanizing.
Features of the procedure
In the course of work, complex units are used that heat zinc to a temperature of at least 500 degrees. Before immersion of hardware, metal structures or other elements in the bath with molten metal, experts perform a number of important preparatory work. Most of them are aimed at degreasing and grinding the most difficult areas. This allows to achieve the most complete and accurate application of zinc. After complete cooling, the quality of work is evaluated, in cases of detection of deficiencies, methods of their elimination are determined. Most often, problems with hot-dip galvanizing flanges does not occur due to the peculiarities of the procedure. Terms of work depend solely on the volume of the order and the workload of the production line.