| Xinyue Brand “DB-Ⅲ” type protective coating of slingfor galvanizing operation |
| The slings are absolutely necessary for non-automatic hot galvanizing process. However its use has |
| some disadvantages, for example, difficultly skimming zinc ash on molten zinc surface and influencing |
| surface quality, more forming zinc slag due to the reaction between sling and molten zinc, increasing the |
| iron content in molten zinc and decreasing its fluidness. After several times of use, the zinc on sling |
| must be removed in acid and thus zinc and acid is greatly wasted. To counter the abovementioned |
| problems, referring toforeign experience, Xinyue company has investigated and developed “special |
| protective coating of sling for galvanizing operation” and solved the abovementioned proble-ms. The |
| product is widely used and well received by vast factories. Many factories think that it is a high and new technical product and deserves strong popularization. After using the product, the zinc and acidconsum- |
| is distinctly decreased, the quality of thegalvanized productsis raised and the service life of |
| sling is prolonged. It fills in the gap of hot galvanizing trade. |
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| Using method: |
| ● Uniformly apply the well stirred protective coating on dry sling whose rust has been completely removed. |
| ● After being selfdry state,apply the coating again to it, total thickness of two layers is controlled as 500μm. |
| ● Natural dryness is for more than 24 h. |
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| ● Slow heating up to 300℃ for solidification. |
| ● Natural cooling is conducted to normal temperature. |
| Product package: |
| In order to make things convenient for vast customers, the product is packed in plastic barrels, each |
| contains 10Kg, 20Kg, 40Kg or 50Kg. |
| Note: under long term storage, deposition may occur but does not influence its quality, andbefore |
| using must stir it and make it uniform. |
| Performance index |
| Specific gravity:1.5~1.65g/ml |
| Maximum temperature: 1250 ℃ |
| PH:6.8~7.2 |
| Acid resistance: without corrosion in sulfuric acid at 85℃ or hydrochloric acid at normal temperature |
| for 20 h. |
| Appearance: opal, yellow and gray thick liquid. |
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