UNCRATING AND DEGREASING PROCESS PIPING

V. P. Verbenko UDC 621.7 .02.001.8:621.643

Earlier procedures for uncrating and degreasing piping and tubing arriving at the Frunze machinery plant in Sumy involved manual techniques, each pipe being wiped individually with white spirit (painter's naphtha). This method offers the combined disadvantages of hazard to health, low productivity, and fire hazard.

At the present time, a new method for degreasing pipes and tubes in an aqueous solution of ML de- tergent powder in 5~c concentration has been instituted, on the basis of experience acquired with that method at the Baltiisk factory (in Leningrad). The ML solution is poured into a bath through 7000 mm long and is heated to 60-80~ whereupon the gas is driven off through a coil. A bundle of tubes or pipes is then low- ered by crane into the bath. Bubblers installed on the bottom of the bath feed in compressed air to bring about intensive agitation of the solution. This contributes to more rapid removal of the oil film from the pipes. The ML solution does the simultaneous job of passivating the surface of the pipes, thereby improv- ing their quality.

The time it takes to complete the degreasing job varies with the pipe diameter and the type of lubri- cant covering the pipe.

Yearly savings accrued from the implementation of this new degreasing method are set at 16,000 rubles.

Translated from Khimieheskoe i Neftyanoe Mashinostroenie, No. 8, p. 38, August, 1971.

O 1972 Consultants Bureau, a division of Plenum Publishing Corporation, 227 West 17th Street, New York, N. Y. 10011. All rights reserved. This article cannot be reproduced for any purpose whatsoever without permission of the publisher. A copy of this article is available [rom the publisher [or $15.00.

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