METHOD OF RECONDITIONING OF ENGINE CRANKSHAFT SHELLS Russian patent published in 1997 - IPC

FIELD: mechanical engineering; repair of locomotive diesel engines in depots. SUBSTANCE: antifriction strengthening layer is applied to working surface of shell by centrifugal babbitt lining method with preliminary coating with flux and tinning of working surface. Tinning contains tin, lead and additions in proposed percentage. Babbitt for centrifugal lining of shells contains sodium, calcium, magnesium, lead and tin at the following ratio of components mass %: sodium - 0.2-0.4; calcium 0.3-0.55; magnesium 0.06-0.11; tin - 1.5-2.1; lead - the rest. EFFECT: improved quality of repair. 3 cl