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TECHNOLOGICAL MEANS OF FORMATION OF COVERINGS MICROARC OXYGENATING ON LARGE-SIZED WELDED DESIGNS

Keywords:

.K. Shatalov, T.J. Karabahina, V.V. Travin


Fixed difficulty at reception of protective coating by an electrochemical way on surfaces of welded large-sized products from titanium consists in a volume that lead microarc oxygenating manually transposing an electrode. Thus it is necessary to provide in band of machining current density i=5…8 А/дм2 and electrical pressure U = 250…280 V, observing all safety requirements for executors. Tall energetic characteristics of process call, in particular at multiple transit of an electrode, having heated surface layer of the work piece, transpiration of electrolyte in volume 0,05…0,06 dm3/min and fuming with components of reaction included in his{its} composition. Prevention of hit of gated out gases in bodies of breathing is provided with use by executors of the corresponding means of an individual defense and ventilation of a room. With the purpose of accomplishment of technology requirements and conditions, were the researches directed on design of the arrangement for oxygenating with which it is possible to receive high quality anodic coating and the deprived specified deficiency are lead. For a basis the way of microarc oxygenating has been taken. The solution of a task in view is attained by that for maintenance of local oxygenating, the arrangement transposed on all surface of a detail suction fumed around of an electrode and allocating them from working band in the chamber where there is their neutralization is applied
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