Non pickling rust removal machine and pickling rust removal machine

Compared with pickling rust removal, non-pickling rust removal machine has the following advantages:

Excellent environmental performance

A large amount of acidic chemical reagents, such as hydrochloric acid and sulfuric acid, are used in the pickling and rust removal process. These acid solutions will produce wastewater containing heavy metal ions and acidic pollutants after use. If these wastewaters are discharged directly without proper treatment, they will cause serious pollution to the soil, water bodies and other environments. The non-acid pickling and rust removal machine mainly uses physical methods (such as shot blasting, grinding, high-pressure water jet) or relatively environmentally friendly chemical methods (such as some biodegradable rust removers), which will hardly produce waste that is harmful to the environment, greatly reducing the risk of environmental pollution.

Little damage to the workpiece substrate

Pickling and rust removal uses acid to react chemically with rust to remove rust, but the acid can also easily corrode the base of the metal workpiece. Especially when the pickling time is improperly controlled or the acid concentration is too high, this corrosion will cause the workpiece size to change, the surface quality to decline, and even affect the mechanical properties of the workpiece. Most of the rust removal methods of non-acid-washing rust removal machines are relatively gentle. For example, mechanical grinding can only remove the rust layer without affecting the base metal, or electrochemical rust removal can accurately control the reaction process, effectively avoiding damage to the base of the workpiece and ensuring the integrity and quality of the workpiece.

Low operational safety risk

The pickling process involves the use of strong acids, which are highly corrosive and pose a serious threat to the safety of operators. During the pickling operation, the acid may splash out and burn the operator's skin and eyes. In addition, the pickling workshop needs to be equipped with special anti-corrosion facilities and emergency treatment equipment, such as acid-proof clothing, acid-proof gloves, eyewashers, etc. In contrast, the non-acid cleaning rust removal machine does not use strong acids during operation, which reduces the safety risks caused by acid corrosion and makes the operating environment safer.

Lower equipment maintenance costs

Due to long-term contact with acidic media, the internal pipes, containers, pumps and other parts of the pickling equipment are easily corroded and damaged, and these parts need to be replaced regularly, which increases the maintenance cost and maintenance frequency of the equipment. The equipment structure of the non-pickling rust removal machine is relatively simple, and there is no acid corrosion problem. Its main components such as shot blasting device, grinding head, high-pressure water pump, etc. are relatively easy to maintain under normal use, and the service life is also long, thereby reducing the long-term maintenance cost of the equipment.

The workpiece surface quality is good after rust removal

After pickling and rust removal, acid and reaction products may remain on the surface of the workpiece, and complex neutralization, cleaning and drying treatments are required to ensure the surface quality. If not handled properly, the surface of the workpiece will change color and rust. The surface of the workpiece after rust removal by a non-acid-washing rust removal machine is relatively clean. For example, after rust removal by high-pressure water jet, the rust and impurities on the surface of the workpiece are thoroughly washed away, and no new chemicals are introduced, making it easier to ensure the surface quality of the workpiece, which is conducive to subsequent surface treatment processes such as painting and electroplating.