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Help CenterEssential Color Film Forming Agent for Aluminum Parts , Phosphating Agent
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Certification:CE,FCC,MSDS
Suitable for a variety of profiles of aluminum, magnesium alloy parts dipping, spraying passivation.
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Brief introduction |
low chromium product, Cr6 + content of less than 1g / L; film color from natural color to light gray, conversion coating had no significant effect on the binding force of the coating within 200 ℃,not suitable for die-casting aluminum. |
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Tank configuration |
Add three-quarters of cold water into working tank,add 100kg JH-8248 for each 1000kg tank liquid. Add enough water to make the liquid level to the working level. |
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Controlling parameter |
Appearance Orange and red liquid Free Acid 10-15 Working Liquid Density 1.1-1.2 Temperature Room Temperature-40℃ Processing time 5-10min |
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process flow |
Degreasing - washing - washing - film forming - washing - washing - drying |
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Tank liquor control |
1)For 1000 liters tank liquid, for each additional free acidity, need to add 7kg JH-8248 2)When the tank liquid using time is too long, Al3 +and too much impurity ions, should consider replacing the working fluid |
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Test Method |
Density Take a certain amount of sample, keeping it at 25 ℃, the density was measured with a hydrometer Free acid 1) pipette take 10 ml liquid into the Erlenmeyer flask 2) drops 3 to 4 drops of bromophenol blue indicator; 3) while swinging with 0.1N sodium hydroxide to color from yellow to blue; 4) the number of 0.1N sodium hydroxide used is free acidity. |
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Note |
Wear protective glasses, rubber gloves and wear protective clothing during processing. Avoid direct contact with eyes, skin, clothing and equipment. Get medical attention if accident happen. |
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Packing |
25kg/ barrel |
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Guarantee period |
One year |
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Waster water treatment |
Tank liquid is acidic, and contain hexavalent chromium, the waste should send to waste water treatment statio. |
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