FIELD: technological processes.
SUBSTANCE: invention relates to rolling of regular relief on inner surface of pipes. Finishing and regular relief with protective coating are made on inner surface of pipe. Self-hardening composition is uniformly distributed on finishing internal surface of pipe, and protective coating is applied into treated cavity of pipe and smoothed by means of rolling rolls. Regular relief is rolled by relief-forming roller on protective coating to create zones of variable elastic compliance. Height of elastic compliance zones during rolling is equal to height of relief elements formed by relief-forming roller. Number of zones during rolling of relief internal surface of pipe is equal to number of formed elements of relief.
EFFECT: disclosed is method for rolling of regular relief on inner surface of pipes.
3 cl, 3 dwg
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