There are four types of derusting methods: manual derusting, ultrasonic derusting, chemical derusting and mechanical derusting.

Manual rust removal is slow and inefficient; chemical rust removal is the simplest and fastest method, which uses acid and metal oxide to produce chemical reaction to remove rust objects on the metal surface. However, the chemical rust removal effect is not ideal and the pollution is serious. Ultrasonic rust removal is a physical method, Because of the limitation of current technology, the effect of rust removal is not good, and it is easy to regenerate rust in the future. Mechanical derusting usually refers to sand blasting machine (shot blasting machine) derusting, with good effect, low cost and fast speed; while derusting, it can also beautify the surface of objects (such as deburring, sundries, etc.).

Considering various factors, at present, in industrial production, sand blasting machine is the best way to remove rust. How about its working principle? Binchang machinery for your simple explanation, sand blasting method is the use of compressed air, a certain particle size of sand through the spray gun sprayed on the surface of parts rust, so as to achieve a rust removal effect.

Advantages of Kunshan huaguanshen sandblasting machine

In addition, it can also prepare the surface for painting, spraying, electroplating and other processes. The surface after sandblasting can meet the requirements of clean and certain roughness, so as to improve the binding force between the coating and the workpiece.

The rust removal method of Kunshan huaguanshen is as follows

The commonly used sand blasting methods are dry sand blasting, wet sand blasting, high pressure water sand blasting and dust-free sand blasting.

1. Dry sand blasting has a lot of dust, which is harmful to health and is not environmentally friendly. During operation, the staff should be equipped with sandblasting clothes and gloves.

2. There is no dust in the wet process, but the water will make the surface rust again. Therefore, preventive measures should be taken at the same time of rust removal. The method is to add 1% ～ 15% antirust agent (trisodium phosphate, sodium carbonate, etc.) and emulsifier or soapy water in the water, so that the surface of air compressor will not rust in a short period of time, and then apply maintenance primer.

3. High pressure water sandblasting is mainly used for large area rust removal, such as ship hull, oil tank, oil tank, boiler, etc. passivator and soapy water are often added in water.

4. Dust free sand blasting is the continuous circulation of sand adding, sand blasting and sand collecting recovery in a closed system to avoid dust flying.