配方类型：	METALS
配方说明：	Nickel-Plating Baths (No.4)
配方组成：	Plating Rate/30 min/mil To liter Sodium Formate/15 g To liter *Harshaw Chemical Co. Nickel Chloride/50 g To liter "XXXD"*/20 cc To liter pH/4 To liter Boric Acid/30 g To liter Nickel Sulfide/300 g To liter Temperature/140F To liter
配制方法：	Nickel-plating formulas are recommended for plating on aluminum, beryllium, thorium, uranium, and zinc. Their high pH makes them particularly desirable for plating on these active metals. Formula 2 is said to give a more ductile deposit and is not limited in thickness. The nickel deposits from these baths, however, are somewhat porous. If an impervious coat on beryllium is required, formula 2 as a strike, followed by plating in formula 4 is recommended. Formula 3 is recommended for plating on zirconium.

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