METHOD OF PRODUCING TIN-FREE LEAD COATINGS ON STEEL

摘要

A method of providing a substantially tin-free lead coating on a steel substrate comprising treating the surface of the substrate with an SnCl2-containing flux and then immediately immersing the substrate in molten lead. According to the preferred embodiments, the flux is floated on top of the lead such that the substrate can be passed from the flux to the lead without exposing it to oxidizing air.