FIELD: pipes.
SUBSTANCE: invention relates to the mold unit for forming a pipe insulation section (17, 27) of pipe insulation from a curable heat insulation material, a method for manufacturing a pipe insulation section and a pipe insulation section, formed in a said mold unit. Mold unit comprises a hollow mode (6), the internal surface (7) of which defines,in fact, a substantially closed hollow space within the mold, and a core (1) that is installed or capable of being installed within the mold in the hollow space thereof and is removable thereof. Whereby the core shows an actual core portion (4), which, as the core is installed within the mold, defines the internal surface of a pipe insulation section, to be formed and cured in the space between the core and the mold. And the internal surface (7) of the hollow mold defines the external surface of the pipe insulation section.
EFFECT: mold unit is arranged to, in the space between the core and the mold, bring about curing of the heat insulation material of the pipe insulation section to be formed; additionally, the mold unit comprises members (8, 12), that define a groove (19; 29) in one end (18, 28) of the pipe insulation section (17, 27) to be formed and a tongue (14; 24) in the other end.
10 cl, 5 dwg
