| 摘要 |
PCT No. PCT/SU85/00091 Sec. 371 Date Jun. 9, 1986 Sec. 102(e) Date Jun. 9, 1986 PCT Filed Oct. 16, 1985 PCT Pub. No. WO86/02428 PCT Pub. Date Apr. 24, 1986.According to the method of coating the internal surface of a pipeline with a cement-sand mortar, a layer (4) of the mortar is formed on said surface and is pressed and held by a flexible hose (5). Before the flexible hose is pressed to the mortar layer (4) the flexible hose (5) is turned out and placed simultaneously with the formation of the mortar layer. The device effecting the method as claimed has a cement-sand fed system (11), a piston (3) arrnged in the pipeline (1) with an annular clearance (12) to distribute the mortar layer on the internal surface of the pipeline, a chamber (13) accommodating the flexible hose (5) and communicating therewith by a flowing medium feed system (15), said flowing medium serving as a means for feeding, turning out and pressing the flexible hose (5) to the mortar layer (4) formed on the surface of the pipeline. |
