FIELD: manufacturing technology.
SUBSTANCE: invention relates to production of baths for application of chemical coatings, particularly baths for alkaline oxidation of steel parts, which can be used both in automotive, and in mechanized or manual lines of galvanochemical treatment. Method includes formation by means of welding in bath body of inner reservoir of rectangular shape, consisting of bottom, side and end walls with horizontal sides, and equipping it with windows located in the upper part for connection to the exhaust ventilation bath, equipping the bath with a water supply pipeline and/or a drain pipe, heat insulation and electric heating elements. At that, side walls of the inner reservoir of the bath body are made with developed surface, and in compartments formed by side walls of reservoir and side walls of bath body, electric heating elements are arranged. At that, developed surface of side walls of bath body is made in the form of sets interconnected by welding or obtained by pressing, arranged vertically or horizontally of semi-cylindrical profiles, connected, by welding, directly or through coupling elements, respectively, with the bottom, the vertical part of the side walls of the inner bath body and the end walls of the inner reservoir of the bath body. Bath body bottom is double and electric heating elements are arranged in compartments under bottom of bath.
EFFECT: enlarging the type and/or number of surfaces and heating elements of the treatment medium of the bath and versions of their placement in the bath of alkaline oxidation of steel parts.
9 cl, 7 dwg
