PROCEDURE FOR CONDUCTING CORROSION TESTS OF METAL SAMPLES PROTECTED WITH NON-DRYING MATERIALS
Machines and equipment used in agricultural production are affected by the processed technological environment and natural and climatic factors. Their combined effect accelerates the corrosion of metals in agricultural machinery and equipment. Enterprises operating machinery and equipment are forced to invest additional funds to maintain their working condition. One of the components of these costs is investments in anti-corrosion protection of machinery and equipment. Agricultural enterprises use materials obtained from petroleum products or synthetic materials for anti-corrosion protection of metal structures, the use of which increases the cost of anti-corrosion measures. The development of new materials for anticorrosive protection of machinery and equipment in agriculture is urgent. One of the ways to reduce costs in this area is the use of agricultural products as anti-corrosive materials, such as vegetable oils and animal fats, as well as the use of resins. The study of the properties of these materials for anti-corrosion protection of metal surfaces of agricultural machinery and equipment is carried out during laboratory and field studies in accordance with GOST R 9.905-2007 and GOST 9.909-86. The corrosion research methodology according to these standards is described mainly for materials with drying coatings and for equipped test stations; in the conditions of small corrosion protection laboratories and the remoteness of field research sites, it requires correction and improvement. Plant products and animal fats, when applied to surfaces as a protective composition against corrosion, practically do not dry out to a solid state. The developed scheme takes into account this feature, it provides for the sequential execution of operations in the process of testing for the study of anticorrosive properties. The use of the developed devices allows weighing and transporting the test samples without touching each other, providing a high degree of research reliability.