的外观与被选择有关 ： The appearance of the pressure blasting machine is related to the choice :
With the continuous development of our country's economy, the state has been developing the pressure blasting machine industry. Long-distance oil and gas pipelines are an important method to ensure power. One of the key elements of using longevity.
In order to achieve the desired rust removal effect when selecting a pressure type sand blasting machine, the abrasive should be selected according to the outer hardness of the spiral steel pipe, the original degree of rust, the required surface roughness, and the type of coating. With three layers of polyethylene coating, a mixed abrasive of steel grit and steel shot is more easily used to achieve the desired rust removal effect.
Pressure sand blasting machine is a condition for the strong connection between the anti-corrosion layer and the steel pipe. The life of the anti-corrosion layer depends on factors such as the type of coating, coating quality and construction environment. About 50 percent.
Therefore, it is necessary to strictly follow the requirements of the anticorrosive coating standard for the appearance of steel pipes, and continue to explore and summarize, and continuously improve the disposal methods of steel pipes.