WIM has developed several specialty chemicals which compliment the picling practice. They include: A lime additive and borax additive when drawing, heading or extruding Rinse additives for better removal of residual salts and when galvanizing a premium grade flux, WIM PGF or its companion product WIM Flux Additive
			Rinse Additive Lime Conditioner Flux Additive
			Rinse Additive WIM RN-RB is formulated to help in the removal of hydrolyzed iron salts left on the pickled surface and not removed in a normal stagnant or flowing rinse. Iron salts left on the steel can cause staining on continuous strip applications, or excessive iron build up in a preflux when hot dip galvanizing. A hot rinse is preferred with a range of 71 to 81 C ( 160 to 180 F). The hotter the rinse the better the reaction. Where there is high humidity a stronger concentration is recommended and a hotter rinse. Depending on the circumstances, exceeding the preferred concentration and temperature may be advantageous during this period. Recommended Additions Stagnant Rinse Charge at 0.2% by volume and maintain a pH of at least 2.5 or less and replenish when the pH reaches 3. Flowing Rinse Add at the rate of 0.1% to 0.2% by volume of the overflow volume. Tip A heavy discharge of acid from the pickle tank into the stagnant rinse waters will have some effect on the pH control and when this is the case, daily or shift additions of the RN-RB may be in order.
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			Lime Conditioner WIM Lime Conditioner is an additive which helps promote a soft tight lime by allowing better colloidal suspension of the lime bath. Frothing and bubbling will be reduced and often eliminated. The coating of the lime will be softer and tighter. A softer coat will more readily act as a carrier in pickling up drawing lubricants and can help reduce die wear. The tighter coating will provide more ease in drawing multiple drafts or other cold forming operations. Lime has a tendency to settle and keeping the lime in suspension needs mechanical agitation along with the WIM Lime Conditioner. Mechanical agitation whether by mixers or pumps should be sufficient enough to prevent the lime particles from settling on the floor of the tank. Mixers or recirculating systems should pull the lighter lime slurry from the surface and force it back into the lower area of the lime tank. Steam jets tend to increase crystallization which is one source of froth on the lime bath. Air agitation also increases frothing and bubbling on the surface. Titration of the lime is recommended in conjunction with a settling test. Both tests compliment each other providing the needed information to retain a quality lime coating. The settling test will indicate the physical condition of the bath while titration indicates concentration. Recommended Use Add 3.8 L ( 1 gallon) of WIM Lime conditioner for every 6 bags of lime used to make up of the new bath. Then add 500 mL ( 1 pt) for every bag of lime added after the initial charge. The best temperature range is between 88 to 94 C ( 190 to 200 F). Tip The lime should not be allowed to boil as this speeds up crystallization and reduces bath life. Excess temperatures also tend to promote a poorer quality of lime coating.
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			Flux Additive WIM Flux Additive is a versatile additive for improving the fluxing properties of zinc ammonium chloride by reducing the amount of flux needed and sealing the fluxed steel better reducing dross formation in the kettle. Flux suppliers often set rates of flux usage in the range of 360 - 480 gm/L ( 3 to 4 lbs/gal) of zinc ammonium chloride. A preflux which contains the right amount and kind of wetting system can easily opeate in a 180 to 300 gm/L ( 1-1/2 to 2 lbs/gal) range without reducing the effectiveness of the flux. WIM Flux Additive gives you that savings. For example, a preflux tank of 35,768 L (9450 gal) using flux at a rate of 360 gm/L ( 3 lbs/gal) would carry a standard inventory in that tank of 12,875 Kg (28,350 lbs) of zinc ammonium chloride. The same tank using the WIM Flux Additive would operate at 240 gm/L and would require 8,584 Kg ( 18,900 lbs) of flux. Aside from a better, less costly flux the WIM Flux Additive will help seal the surface of the steel completely. Zinc ammonium chloride dries with a crystalline pattern, wetted zinc ammonium chloride may be half film, half crystalline. The WIM Flux Additives dries to a simple film which protects and seals the fluxed steel. Because you have an improved fluxing action and a thinner lighter film the flux dries faster and the dryer the article the quieter it will enter the kettle. Less zinc is splattered about. The tight seal prevents excessive oxidation between the flux and kettle. Less iron is put into the kettle and dross formation is cut. Customers have experienced dross reductions as high as 15% when using this additive. ADDITION RATES Add 0.9 L for every 45 Kg bag of flux added to the preflux tank.
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