Abstract
In this paper, the preparation of polymer coatings on the surface of metal structural elements is considered to improve their physical, mechanical and strength properties. It is shown that the behavior of substrate samples under mechanical loads can be estimated using mathematical modeling methods. The properties of coatings and the mechanical properties of coated and uncoated metal plates have been evaluated. Methods for constructing mathematical models of metal plates of various structures are proposed.
Highlights
One of the most widely used types of polymer coatings on the surface of metal products are paints and varnishes, i.e. filled polymers[1-8]
The coatings are usually applied in thick layers - 250 microns or more
For the production of functional coatings, compositions based on epoxy resins are most widely used
Summary
One of the most widely used types of polymer coatings on the surface of metal products are paints and varnishes, i.e. filled polymers[1-8]. For the production of functional coatings, compositions based on epoxy resins are most widely used They are applied in layers of 100-150 microns on a heated surface in a fluidized bed apparatus (repeatedly alternating heating and immersion in powder) or by jet spraying. The main share of consumption of thermosetting paints, falls on protective and decorative coatings, for which appearance is most important Such coatings usually have a small thickness (25-100 microns). The main disadvantage of epoxy coatings is low resistance to weathering According to their purpose, paints are divided into functional and protective and decorative paints. The coatings are distinguished by their low cost, ease of maintenance and long-term protection in various aggressive environments They are characterized by flexibility, impact resistance, low permeability, good heat resistance and adhesion.Paints can be applied in one way or another to a cold or preheated surface. The mechanical properties (flexibility, hardness, impact resistance) of coatings are basically the same as those of epoxy, and the resistance to chemicals is slightly lower
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