| 配方類型： |
CEMENT & CERAMICS |
| 配方說明： |
Metal Preparation for Low Temp. Vitreous coating |
| 配方組成： |
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| 配制方法： |
Steel Pickling Method: 1. Cleaner bath 13/3 oz./gal. Wyandotte W.L.G. cleaner, (or equiv.), boiling 20 min.
2. Water-rinse-room temperature 3. Acid 6-8% sulfuric acid, 150F./10 min.
4. Water rinse---room temperature 5. Nickel dip 1 oz. single nickel salts/gal., pH 3.2-3.5, 160F. /10 min. (sufficient to get 0.06-0.08 gm. nickel) (sq. ft.) 6. Water rinse---room temperature 7. Neutralizer. 16 oz./gal. sodium carbonate, .05 oz./gal. borax, 155-175F/2-3 min.
8. Neutralizer using 1/4 avove strength 9. Dryer Aluminized steel Method A 1. Diversey # 404 cleaner 8 oz./gal., 170F./2 min.
2. Spray rinse (cold) 3. 7% H2SO4, 140-150F./2 min.
4. Spray rinse (cold) 5. neutralized (weak) 1 oz. borax/gal., 1/4 oz. soda ash/gal., 1-2 min.
170F.
6. spray rinse (cold) deionized water 7. Hot rinse (optional) 8. Quick dry Method B Preheat metal at 1000F./10 min.
Method C 1. Vapor degreasing 2. Hot rinse 3. Dry Method D Organic solvent cleaner Miscellaneous Sandblasting is preferred for |
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