FIELD: construction.
SUBSTANCE: claimed procedure of the application of duplex heat-and-water-proof insulation consists of layer-by-layer winding of the heat-and-water-proof insulation layer based on the polymer mix of phenolic foam and an outer damp-proof rubber layer based on synthetic rubbers. Then, stitching and thermal processing in a vulcanising heater is performed. It differs from the known processes in that winding and stitching are performed in an as-heated state at 65-90°C. Foaming and curing of the inner heat-proofing are conducted in the vulcanising heater at 115-135°C for 30-60 minutes along with the deformation of the outer water-proofing rubber layer. Curing of the outer water-proof layer is conducted in the same vulcanising heater at 143-170°C for 45-90 minutes.
EFFECT: higher adhesion between heat- and water-proof layers, ruled out cracking at transportation, assembly and operation.
| Title | Year | Author | Number |
|---|---|---|---|
| PIPE HEAT AND HYDRAULIC INSULATION METHOD | 0 |
|
SU625092A1 |
| HEAT HYDRO INSULATION PIPELINE PRODUCTS FOR HIGH-TEMPERATURE THERMAL NETWORKS, HEAT AND TECHNOLOGICAL PIPELINES AND THE METHOD OF ITS MANUFACTURE | 2017 |
|
RU2669218C1 |
| HEAT-INSULATED FLEXIBLE MULTI-LAYER POLYMER PIPE NOT SPREADING FLAME | 2010 |
|
RU2479780C2 |
| PROTECTIVE-MECHANICAL COATING OF MONOLITHIC HEAT INSULATION | 2010 |
|
RU2454597C1 |
| PROCEDURE FOR FABRICATION OF HEAT PROTECTING COATING OF PIPELINE | 2009 |
|
RU2428617C2 |
| PIPELINE | 2000 |
|
RU2249754C2 |
| HYDRAULIC INSULATING COMPOSITION (VARIANTS) | 2004 |
|
RU2278133C2 |
| METHOD OF WATERPROOFING COATING MAKING | 0 |
|
SU1810317A1 |
| METHOD OF APPLICATION OF MULTI-LAYER WATERPROOFING LAGGING ON OUTER SURFACE OF PIPE | 0 |
|
SU1721385A1 |
| COMPLEX ISOLATION OF PIPELINE WELD JOINT AND METHOD OF ITS PRODUCTION | 2017 |
|
RU2696653C2 |
