Rolled steel parts are easily oxidized by oxygen when exposed to the air, commonly referred to as rust. When performing surface area processing of rolled steel parts, it is required to eliminate the rust layer on the surface of the components. Processing the surface of rolled steel elements can improve their tolerance and extend their life span. There are generally physical and chemical techniques to get rid of the rust layer on the surface of rolled steel components. The physical method primarily relies on mechanical force to remove the rust layer. The main downsides of this approach are the incomplete elimination of the rust layer and the large amount of dust produced during the rust elimination procedure. At present, it is less used in the field of steel rust removal; the chemical method is the most extensively used, generally relying on acid It reacts with the rust layer to accomplish the purpose of rust elimination. Chemical rust elimination has the advantages of quick speed, thorough rust removal, and guaranteeing the quality of subsequent steel surface treatment. Nevertheless, chemical treatment still has unsatisfactory points, that is, the process of rust removal Acid mist, pickling waste liquid, etc. pollutes the surrounding environment and impacts the health of the personnel.

Environmentally friendly production is a brand-new and imaginative way of thinking about the avoidance of pollution in items and the process of manufacturing items. It is to constantly improve the management of item production procedures, promote technological progress, improve resource utilization efficiency, and lower the generation and discharge of pollutants. Lowering damage to people and the environment is an environmental protection method that constantly applies overall prevention. The main concept is to replace the standard end-of-pipe treatment technology with the first-end avoidance technology such as reducing or preventing production pollution, saving basic materials and energy, eliminating harmful materials, minimizing the discharge of pollutants and waste, and preventing harm of waste discharge to people and the environment. The content of eco-friendly production involves all aspects and is targeted at the unfavorable results of the production process on the environment, with the goal of contamination avoidance, research study, advancement, and implementation of various eco-friendly products, procedures, and innovations.

Dealing with the metal products industry, Wuxi T-control introduced a new generation of completely automatic tunnel closed pretreatment lines to attain pollution-free, low emissions, minimize labor and production costs, and enhance production performance. This operation line adopts a closed structure. During the pickling procedure, an uniquely created tank structure is used to manage the generation of acid mist at a low level. The acid mist created goes into the closed tunnel and the acid mist is managed. In the tunnel of the assembly line, with the negative pressure system, the acid mist will not spread beyond the devices at all, and will not trigger unfavorable results on workers and plant devices.