一种铝合金镍-磷化学沉积镀层

Nickel-phosphorus chemical precipitation plating layer of aluminium alloy

Abstract

The invention relates to a nickel-phosphorus chemical precipitation plating layer of an aluminium alloy, mainly containing the following components in content by weight: 20-30 grams/litre of hexahydrated nickel sulphate, 20-30 grams/litre of sodium hypophosphite, 15-20 grams/litre of sodium acetate, 6-10 grams/litre of butane diacid, 30-50 grams/litre of complexing agents, 20-60 PPM of stabilizingagent and 30-100 PPM of plating midbodies. The nickel-phosphorus chemical precipitation plating layer has the advantages of fast precipitation, well combining force of a plating layer, brightness andcompactness of the plating layer, excellent stable property of tank liquor, long service life, easy maintenance, and the like.
本发明涉及一种铝合金镍-磷化学沉积镀层,其主要为以下含量成份组成的:六水合硫酸镍:20-30克/升、次亚磷酸钠:20-30克/升、醋酸钠:15-20克/升、丁二酸:6-10克/升、络合剂:30-50克/升、稳定剂:20-60PPM、电镀中间体:30-100PPM。本铝合金镍-磷化学沉积镀层具有沉积速度快、镀层结合力好、镀层光亮且致密,槽液稳定性能优异、使用寿命长、容易维护等特点。

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