| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to application of liquid epoxy solutionless compositions on inner surfaces of tubes for constriction of whatever pipelines. Scraper is fed into tube at the rate of àB>Lmp/Tn. àB is scraper speed in travel from tube near end to its far end, m/min. Lmp is tube or tube section length whereon epoxy composition is applied, m. Tn is time interval between composition feed termination and beginning of its hardening, min. Said composition is applied at scraper out-of-tube speed àp=(0.050.55)Dinnmp, where àp is scraper travel in applying epoxy composition on tube inner surface, m/min. Din is tube inner diameter, m. nmp is tube rotational speed, min-1. ^ EFFECT: saving of epoxy composition, higher efficiency of application. ^ 7 cl, 3 dwg, 3 tbl |
