| 摘要 |
FIELD: electrolytic processes in mechanical engineering. SUBSTANCE: drum contains a perforated wall consisted of two perforated plastic sheets separated with a clearance determined by thrust insertions, a cap, a pinion, and an end wall. Openings on perforated sheets are spaced with pitch 5-25 mm, and through openings 2-10 mm in diameter made in the inner sheet have against them matched blind holes of the same diameter on the outer sheet. EFFECT: facilitated treatment of specifically shaped objects. |
