GLASS FOR STEEL PIPE ENAMELING Russian patent published in 2005 - IPC

Abstract RU 2244693 C2

FIELD: glass-enamel protective covering composition for low-carbon and medium-carbon steel.

SUBSTANCE: claimed composition contains (mass %): SiO₂ 45.0-49.0; Al₂O₃ 1.5-4.5; CoO 0.5-0.9; CaO 6.0-9.5; ZnO 2.0-4.0; MgO 3.0-6.0; Fe₂O₃ 0.1-0.9; B₂O₃ 10.6-14.0. Composition is useful for metallurgic and oil industry, in particular for pipe lines maintaining in active media, as well as for water-supply systems. Glass of present invention affords the ability to sufficiently increase durability of steel pipes in aggressive media, and as a result to reduce metal consumption, decrease equipment downtime, safe purity of transported products, etc.

EFFECT: glass-enamel of simplified composition without quality deterioration.

2 tbl, 21 ex

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RU 2 244 693 C2

Authors

Novoselova N.S.

Korol' S.L.

Kostevich V.E.

Pisarchukovskaja N.G.

Filippova T.V.

Dates

2005-01-20—Published

2003-01-14—Filed