Degreaser for cleaning rolling hard coil and using method thereof

Abstract

The invention provides a degreasing agent for cleaning roll hardened coils and preparation and application methods thereof, belonging to the metallic material surface cleaning technical field, wherein the components of the degreasing agent by weight portion are; 15 to 40 portions of soda, 3 to 6 portions of sodium lignosulfonate, 3 to 6 portions of sodium tripolyhosphate, 2 to 6 portions of self-defoaming emulsifier, 2 to 4 portions of emulsifier, 2 to 4 portions of surface active agent and 40 to 70 portions of flake caustic soda . The invention has the advantages that materials which compose of the degreasing agent are to access, non-toxic, noninflammable and low in price; the sodium tripolyhosphate, which is contained in the materials, absorbs water, forming the hexahydrate (Na5P3O10.6H2O) which has the dry characteristics, thereby avoiding the product from the deliquescence, the caking and the effect reduction when the degreasing agent is stored; the preparation method is quite suitable for companies to self prepare, thereby meeting the requirements of instant preparation and timely use; the application method of the degreasing agent has the advantages of environment protection, convenient use and low cost.

Description

technical field [0001] The invention belongs to the technical field of metal material surface cleaning agents, and in particular relates to a degreasing agent for cleaning hard rolled coils, and also relates to a method for preparing and using the degreasing agent Background technique [0002] Hard-rolled coil refers to the coil obtained by continuous rolling of hot-rolled pickled coil at room temperature. It is also called strip steel or hard-rolled coil in the industry. Since the surface of the hard-rolled coil has rolling oil stains left during rolling, when it is put into the hot-dip galvanizing line for hot-dip galvanizing on its surface, the rolling oil stains must be removed, otherwise the brightness cannot be obtained. Clear, good adhesion, excellent corrosion resistance coating. The degreasing agent plays the role of making the hard rolled coil obtain a clean surface before galvanizing. Its mechanism of action is to remove the rolling oil and anti-rust oil attached...

AI Technical Summary

Problems solved by technology

However, at present, the degreasing agents obtained from commercially available channels all have the following two common problems: first, they are not easy to store under normal temperature conditions, and are prone to deliquescence and affect the degreasing effect, which is not conducive to ensuring the quality of galvanizing, especially as a heat treatment agent. In order to ensure the normal and orderly production, galvanizing enterprises often face a dilemma because it is difficult to buy and use the degreasing agent objectively. Too little will affect the production. Accordingly, the hot-dip galvanizing industry generally hopes to improve the existing degreasing agent, and even more hopes to have a technical teaching suitable for the self-made degreasing agent for cleaning rolled hard coils; Second, the price is extremely expensive, about 10,000 yuan (RMB) per ton, which is not economically cheap