Development of aqueous non-sludge forming zinc phosphate bath

Mukherjee, K P and Lahiri, A K (1964) Development of aqueous non-sludge forming zinc phosphate bath. NML Technical Journal, 6 (4). pp. 23-27.

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Most phosphating baths are sludge forming which makes handling of the solution and operation of the bath difficult. In recent years, non-sludge-forming baths have been developed although their applications have not been extensive. In this investigation, non-sludge forming zinc phosphate bath has been examined. Various experiments carried out to study the characteristics of phosphate coatings, e.g., coating composition, protective properties etc., using both sludge and non-sludge-forming solutions have been outlined. Addition of non-sludge forming compounds effectively checked sludge formation and gave a good phosphate coating comparable to that obtained from the conventional zinc phosphate bath. (Messrs K.P. Mukherjee and A.K. Lahiri, National Metallurgical Laboratory)

Item Type:Article
Official URL/DOI:http://library/articleDetails.jsp?recordid=118
Uncontrolled Keywords:phosphating baths; non-sludge-forming baths; zinc phosphate bath
Divisions:Metal Extraction and Forming
ID Code:1730
Deposited By:Dr. A K Sahu
Deposited On:27 Sep 2010 10:07
Last Modified:16 Feb 2012 17:12
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