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Clean oil from steel strip

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    In cold rolling of a steel strip, cold rolling mill lubricants such as mineral oil, beef tallow, synthetic oil, or the like are used to ensure cooling and lubrication of the mill rolls. On the surface of a strip after cold rolling, there are usually attached stains of the cold rolling mill lubricant used in the rolling and metal dust produced by abrasion during the rolling operation. When the strip coil with such stains remaining thereon is annealed, these stains are charred and adhered to the surface of the strip as surface smudges, thereby considerably spoiling the surface appearance to lower the commercial value and considerably damaging the coating and the resistance to corrosion. When using such cold strip as a raw plate for plating, the smudges remaining firmly on the surface of the strip are not removed by pretreatment for plating, causing serious defects on the surface of the product preventing a firm coating from being formed, whereby the product is spoiled in appearance and considerably reduced in resistance to corrosion.
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    Metal Strip Cleaning Machinery Suppliers

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    metal - What are the best chemical liquids to clean metallic surfaces? - Chemistry Stack Exchange

    Login or Sign Up. How do I clean new steel for painting? Posts Latest Activity. Page of 1. Filtered by:. Previous template Next. The brand new steel I bought for my table has some sort of oily substance all over it, probably to keep it from rusting too fast, and I need to know what to use to clean it off before painting it.
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    The last thing you want on a surface that is to be plated, painted or otherwise coated with something that needs to adhere to that surface is a film of residue that prevents that adhesion. The water break test is a simple, quick and usually non-destructive test to test for hydrophobic films. The test is most frequently applied on freshly cleaned metals including steel, aluminum, brass and other metals that, in a totally clean state are hydrophilic.
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    Provide Feedback. Offered in power rating ranges from 40 kW to kW and operating pressure ranging from 0 psi to psi. Used for pre-cleaning and iron-phosphating metal surfaces.
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