Key technologies of non acid cleaning rust removal machine

The pickling-free rust removal machine involves a number of key technologies, which ensure that it can perform rust removal work efficiently, safely and environmentally friendly.

Physical rust removal technology

Shot blasting technology: This is an important physical rust removal method. The shot is projected at high speed onto the surface of the metal workpiece through the shot blasting machine, and the impact force of the shot is used to remove the rust. The key lies in the design of the shot blasting machine, including the shot blasting speed, shot blasting angle and the selection of shot. The shot blasting speed needs to be precisely controlled according to the material, hardness and rust thickness of the workpiece to ensure that the rust layer can be effectively removed without damaging the workpiece substrate. The material (such as cast steel shot, stainless steel shot, etc.) and particle size of the shot are also crucial. Different workpieces and rust conditions require different shots to match.

High-pressure water jet technology: high-pressure water flow generated by a high-pressure water pump is used to form a high-speed water jet through a specially designed nozzle. The structure of the nozzle and the shape and size of the nozzle affect the pressure distribution and spray angle of the water jet. By precisely controlling the water pressure (usually between tens of megapascals and hundreds of megapascals), the water jet can penetrate into the gaps in the rust layer and wash away the rust. At the same time, in order to improve the efficiency of rust removal, the pulse technology of the water jet is also involved, which generates a pulsed water flow to enhance the impact on the rust layer.

Chemical rust removal technology (non-acid pickling)

Environmentally friendly rust remover formulation technology: The key is to develop an efficient and environmentally friendly rust remover. These rust removers are usually composed of multiple ingredients, such as organic weak acids that can dissolve rust, chelating agents, etc. Organic weak acids can react chemically with rust to convert rust into soluble substances, while chelating agents can form stable complexes with metal ions in rust to prevent metal ions from re-depositing on the surface of the workpiece. In addition, this rust remover must have good biodegradability to reduce pollution to the environment.

Electrochemical rust removal technology: rust removal is carried out through the principle of electrolysis. The key lies in the design of a reasonable electrolytic cell structure and electrode system. The shape, size and material of the electrolytic cell should be adapted to workpieces of different shapes and sizes, while ensuring the uniform distribution of the electrolyte. The selection of electrode materials (such as graphite electrodes, titanium-based coating electrodes, etc.) and the arrangement of electrodes determine the distribution of current on the workpiece surface. By accurately controlling the current density and electrolysis time, the rust can be preferentially dissolved at the anode while avoiding excessive corrosion of the workpiece substrate.

Automation and intelligent control technology

Automatic operation technology: The automatic operation of the non-acid cleaning rust removal machine includes automatic feeding of workpieces, automatic control of the rust removal process and discharging. For example, the automatic transportation of workpieces is realized through the conveyor belt system, the position and size of the workpieces are detected by sensors in the rust removal area, and then the parameters of the rust removal equipment are automatically adjusted, such as the shot blasting amount of the shot blasting machine, the pressure of the high-pressure water jet, etc., to ensure the efficiency and accuracy of the rust removal process.

Intelligent monitoring and feedback technology: During the rust removal process, sensors are used to monitor the rust removal effect, workpiece surface status and equipment operating parameters in real time. For example, optical sensors are used to detect the residual rust layer on the surface of the workpiece and feed the data back to the control system. The control system automatically adjusts the rust removal strategy based on the feedback information, such as extending the rust removal time, changing the rust removal method, etc., to achieve the best rust removal effect. At the same time, the operating status of the equipment can also be monitored, such as the motor speed of the shot blasting machine, the pressure of the high-pressure water pump, etc., to detect equipment failures in a timely manner and conduct early warnings and maintenance.