FIELD: deposition of oxide coats on aluminum alloys during repair of bodies of gear- type pumps. SUBSTANCE: gear for microarc oxidation of body wells of gear-type pump has electrode, bath-electrolyzer, power supply source, tank for collection of electrolyte, system of electrolyte pumping through. Case of bath-electrolyzer is connected to first terminal of power supply source and electrode manufactured in the form of two hollow cylinders linked by strap and installed in wells of body of gear- type pump is linked to its second terminal. Clearance between external surface of electrode and surface of body wells lies in interval of 5.0-12.0 mm. EFFECT: increased quality of deposited coat thanks to optimization of structural elements of gear. 2 dwg
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