FIELD: stitching equipment. SUBSTANCE: shuttle is welded together with axis, as a result, shuttle has wear resistance. Shuttle and axis are made of light alloy, for example, of aluminum alloy. Then the shuttle is placed into aqueous solution of electrolyte. Process is conducted during 3.6·102-12·104 at pulsing current with positive and negative polarity at frequency of 50 Hz. Relation of intensities of cathode and anode currents is equal to Ic/Iа=1.0-1.3 and voltage equals to 400-600 V, current density is equal to 0.05 - 0.20 А/m2. EFFECT: improved reliability of operation. 3 cl, 1 tbl, 3 dwg
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