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Insufficient cleaning of emulsion oil
2004
We are in the business of cold rolling and tin plating
(electroplating). We often find that there are emulsion oil stains on the tinplated sheets inspite of input oil content of sheet being very low (70 mg/sq meter). The cleaning facility of steel is by NaOH without any mechanical arrangement.
what could be the possible reasons for this.
Thank you.
Bijay Mishra
rolling and plating - Jam, Jharkhand, India
Dear Mr.Mishra,
The NAOH is probably causing the problem. Pl try to use a mild alkaline cleaner or a weak solution of citric acid
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eBay
or
Amazon [affil link] .
Ravi Sankar
- Chennai, INDIA
2004
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