Rust removal principle

　　HG high-efficiency rust remover adopts the method of peeling and rust removing, and has strong peeling effect on rust layer and scale. After the steel workpiece is placed in the HG high-efficiency rust remover, the rust remover has strong dissolution, penetration and peeling action on the rust layer and the scale, and the wetting, permeation and dissolution speed are much higher than the speed of the hydrochloric acid treatment. Some special stripping agents in the agent are adsorbed on the surface of the steel substrate and the scale, forming a diffused electric double layer at the solid-liquid interface. Since the electric charges on the scale and the steel substrate are the same, mutual exclusion occurs. The electric potential is rapidly increased until the scale is completely stripped. Actual detection and actual production verification, the rust removal rate of the rust remover is 10-20% faster than the traditional pickling speed of hydrochloric acid. At the same time, the rust remover has a passivation effect, and a passivation film is formed on the surface of the stripped steel substrate to prevent the acid solution from further reacting with the steel matrix, thereby effectively controlling the “over-etching” in the pickling process. “The problem is that the amount of ferrous ions produced is reduced. The various preparations of the rust remover work together to enhance the surface brightness of the steel substrate, so that the workpiece is glittered with metallic color. The aromatic odor produced by it also effectively improves the operating environment of the workshop.

　　First, HG high efficiency rust remover （universal type）

　　This product is the latest product launched by our company based on the mature series of rust remover products developed over the years. It is the latest achievement of the company's continuous product upgrading and pursuit of technological progress. The product is made of highly concentrated process and formula. It can be used after adding a certain proportion of water and industrial hydrochloric acid. Can be widely used in pre-treatment of galvanizing, metallurgy, steel, automotive, home appliances, machinery and other workpieces. The product is packaged in 25kg plastic drums and has a white bucket lid.

　　Second, HG high efficiency anti-fog enhancer （universal type）

　　The product is produced by a special process formula and has strong anti-fog effect. It is used in rainy weather and harsh low-pressure climate. Under normal circumstances, every ton of HG high-efficiency rust remover is equipped with several barrels of HG high-efficiency anti-fog enhancer. The product is packed in 25kg plastic drums for easy use and is equipped with a blue bucket lid.

　　Features

　　Good environmental performance

　　The powerful anti-fog effect reduces acid mist by more than 80% compared with hydrochloric acid, and is non-toxic, harmless, non-polluting and non-irritating. The product formula contains no harmful or toxic substances and does not produce harmful or toxic substances during use. The scent is fragrant and fragrant, which effectively improves the production environment of the workshop and protects the physical and mental health of workers.

　　Thorough rust removal, high surface quality after rust removal of workpieces, rust removal and passivation

　　After the product is rust-removed, the workpiece is silver-shiny and metallic. And in the derusting process, both passivation effect o surface quality after workpiece derusting ≥ Sa2 1/2 grade. After the rust is dried, the workpiece can be kept for about 2 hours without secondary rust. The surface is smooth, and there are defects such as pitting, over-etching, and blackening of the surface caused by pickling. After rust removal, the surface of the part to be plated has excellent adhesion, so that the quality of galvanizing is up to a grade, which can significantly reduce the consumption of coating and coating, such as zinc consumption index, thereby greatly saving overall production cost.

　　Long service life, large processing capacity and low cost of use

　　The special formulation of the product makes the liquid acidity of the rust remover change slowly in a smooth curve during the use process, and the ferrous ion concentration rises slowly with a smooth curve. After proper supplementation, the service life and the treatment amount are more than twice that of hydrochloric acid rust removal. The direct use cost is lower than hydrochloric acid.