NEWS

Abrasive blasting can be defined as a process of cleaning and finishing of materials by forceful direction of an abrasive media applied either dry or suspended in a liquid medium, against the surface of the workpiece.

 

The quality of the pretreatment of sand blasting will affect the adhesion and appearance of the coating, the moisture resistance and corrosion resistance of the coating. If the pretreatment work can’t meet the standard requirement, the corrosion will continue to spread under the coating, making the coating slice off.

 

After the cleaning of the surface carefully and the general cleaning of the workpiece, using the exposure method to compare the coating, the gap of service life can run up to 4-5 times. Abrasive blast cleaning generally is considered to be an economical process. It is faster than competitive processes of pickling, electrochemical cleaning, or hand finishing...

 

 

DRY BLASTING

 

General Composition

A complete dry sandblaster generally consists of six systems, including structural system, medium power system, pipeline system, dust removal system, control system and auxiliary system.

 

Working Principle

The dry sand blasting machine is the negative pressure formed by the high speed movement of the air flow in the spray gun, which is driven by the compressed air, and the abrasive passes through the sand conveying pipe.

 

Spray gun nozzles would be used to the machined surface to reach the expected processing. In the sand blasting equipment, the compressed air is supplied.

 

A complete working unit of dry blasting machine usually consists of four systems, namely, pressure tank, medium power system, pipeline system and control system.

 

The work pressure of dry blasting equipment set up by compressed air in the pressure tank with compressed air as the power, and the abrasive through the sand valve.

 

It is pressed into the sand pipe and sand blast nozzles are used to machine surface to reach the expected processing. In pressure sand blaster, compressed air is supplied. The main feature of wet blaster is better control of dust pollution during sandblasting process and improvement of blasting operation environment compared with dry sand blaster.

 

 

WET BLASTING

 

General Composition

A complete wet blasting machine is usually composed of five systems, namely, structural system, medium power system, pipeline system, control system and auxiliary system.

 

Working Principle

Wet blaster is a feeding power with the grinding fluid pump as the grinding fluid, and the uniformly stirred liquid (abrasive and water mixture) is transported to the spray gun through the grinding fluid pump. The compressed air is used as the accelerating power of the grinding fluid, and enters the spray gun through the gas pipeline. In the spray gun, the compressed air accelerates the grinding fluid entering the spray gun, and ejected through the nozzle to spray the processed surface to achieve processing purpose. In the wet blasting machine, the grinding pump is the feed power, and the compressed air is the acceleration power.

 

Application

Air pressure blasting is a common method of dry-blast cleaning, air pressure blasting uses compressed air to apply abrasive to a surface. Air pressure blasting uses either a direct pressure or an induction method that may use either the siphon or gravity method.