%0 Journal Article
%T Restoration of shaft sliding supports of ship diesel engines by means of powder welding
%A Musagadzhiev Akhmed Magomedovich
%J Vestnik of Astrakhan State Technical University. Series: Marine Engineering and Technologies
%D 2009
%I Astrakhan State Technical University
%X Criteria for choosing a way of supports restoration were: ecological compatibility, sufficient hardness, adhesive strength and cohesive resistance, operational properties, an opportunity to process a layer by cutting, and the minimal failure of supports coaxiality during welding. Restoration of root supports in blocks of cylinders has been realized by means of electrocontact welding with a sintered powder tape in the form of two semi-rings. The selected structures of a sintered powder tape after welding formed a rather technological layer satisfying to operational properties: adhesive strength and cohesive resistance > 10 kg/mm2, hardness §¯V 200¡­230. The accelerated tests of restored diesel engines have shown that the operational resistance was increased in 2.1¡­2.5 times, in comparison with factory blocks. The developed environmentally appropriate technology may be successfully used to restore external and internal surfaces of other hull details.
%K welding
%K restoration
%K support
%K tape.
%U http://astu.org/content/userimages/file/sea_1_2009/08.pdf