Abstract
A huge drawback of classical electro-impulse metallization is that only internal cylindrical surfaces of components may be metallized up to 120 mm diameter. In order to eliminate this drawback, a special diverter, which permits to form coatings both on the internal and external profiles and plane surfaces, has been developed. One of the most important properties of any coating is adhesion. The most significant factor, which influences the adhesion of the obtained coating, is the temperature of contact at the coated surface. It is impossible to experimentally measure the temperature of contact, therefore, calculations were carried out with a mathematical model. The obtained results reveal that the interaction of the sprayed coating with the coated surface is close to 100%. Therefore the adhesion of coatings, sprayed by directional electro-impulse metallization method, is several times higher compared with the coatings obtained by plasma and electric arc spray methods.
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