FIELD: laying pipe lines; shipbuilding; heating systems.
SUBSTANCE: proposed method includes preliminary heating of metal to working soldering point over width of 2-5 cm. Welding rod placed in area of pipe connection is molten by flame of gas burner. In the course of heating and connecting the pipes, layer of flux is applied on connection zone and adjacent zone over width of 2 cm. Welding rod may be made from alloy containing copper, zinc, silicon, tin; diameter of welding rod is 1.5-5 mm. Working temperature of alloy is 880-890 C, tensile strength, up to 500 N/sq mm and relative elongation, up to 20%.
EFFECT: reliable corrosion protection.
6 cl
| Title | Year | Author | Number |
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RU2146190C1 |
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| 0 |
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SU141130A1 | |
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RU2742543C1 |
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RU2470752C1 |
