FIELD: production of diffuse zinc coating. SUBSTANCE: method involves zinc plating in melt, cooling and diffuse roasting. Before diffuse roasting takes place tubes are treated in solution which contains (g/l): phosphoric acid 50-120, liquid glass 2-5, zinc oxide 0.1-1, fireproof silicates 0.2-0.8. Said diffuse roasting is carried out within 1-9 min at 610-650 C. During said roasting tubes are rotated at rate 4-8 r.p.m. EFFECT: improves efficiency of the method. 2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
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| COMPOSITION FOR PRODUCING DIFFUSION ZINC COATING | 0 |
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| FLUX FOR HOT GALVANIZING OF STEEL ARTICLES | 0 |
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| METHOD OF APPLYING COAT ON INNER SURFACE OF PIPE | 1991 |
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| APPARATUS FOR THE APPLICATION OF COATING ON THE INNER SURFACE OF PIPES | 1992 |
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| METHOD OF ZINC PLATING STRUCTURAL LOW-CARBON SILICON STEEL PRODUCTS | 0 |
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SU1756377A1 |
