Degreaser for cleaning rolling hard coil and using method thereof

Abstract

The invention discloses a degreasing agent for cleaning rolled hard coils and a preparation and use method thereof, which belong to the technical field of metal material surface cleaning agents. It is composed of the following raw materials in parts by weight: 15-40 parts of soda ash; 3-6 parts of sodium lignosulfonate; 3-6 parts of sodium tripolyphosphate; 2-6 parts of self-defoaming emulsifier; 4 parts; 2-4 parts of surfactant; 40-70 parts of caustic soda. Advantages: all the raw materials constituting the degreasing agent are easy to obtain, non-toxic, non-flammable and cheap; because sodium tripolyphosphate is used in the raw materials, the hexahydrate (Na5P3O10·6H2O) formed after absorbing water has dry characteristics, so that it can Ensure that the product avoids deliquescence and agglomeration, so that the degreasing agent product is convenient to store without reducing its efficacy; the preparation method is very suitable for the enterprise's own preparation, meeting the requirements of instant preparation and timely use; the use method of the degreasing agent can reflect the friendliness to the environment and easy use , Help reduce costs.

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