General use of steel plate pretreatment line equipment on the shot blasting machine shot blasting method of abrasive treatment
In the domestic shipbuilding, container, large machinery industry, the general use of steel plate pretreatment line equipment on the shot blasting machine shot blasting method for abrasive treatment, abrasive blasting treatment and pickling treatment in three ways. Which to get high efficiency and high quality automatic flow operation, there is still only shot blasting treatment method.
Shot blasting is the use of road blasting machine impeller in the high-speed rotation of the centrifugal force generated by the projectile shot material (steel shot, steel wire segments, angular steel sand, etc.) at a very high speed shot to the surface of the steel to be treated, the impact and grinding effect, remove the steel surface oxidation and rust, so that the steel surface to reveal the original color of the metal and present a specific roughness, in order to facilitate the adhesion of coatings.
After blasting the steel is sent to the cleaning room, the cleaning roller brush will clean the surface of the residual pellets, and then use a strong wind tail blowing, the surface of the workpiece is cleaned clean, with the clean standard of painting.
The cleaned workpiece is sent to the spraying room, and the spraying room is set up with two air jets to spray the workpiece.
After the surface spraying, the steel is sent to the drying room for drying, which is heated by combustion or electric heating. After drying, the workpiece enters the conveying roller conveyor at the discharge end to complete the steel pretreatment work.
After the steel plate comes into the factory, the raw material of the steel is treated before processing to remove the surface oxidation and rust, and after reaching the standard of rust removal, a temporary protective workshop primer is applied to ensure that the steel will not continue to corrode in the process of processing and manufacturing the components, and this stage of steel plate treatment is called the surface pretreatment of steel, which has the advantages of convenient construction, ensuring the quality of painting, saving manpower and financial resources, and shortening the post-painting construction cycle.
When the wear degree of the main parts has reached the limit of normal use, continue to use, wear will rise sharply, resulting in mechanical equipment precision, technical performance, production efficiency dropped significantly, the failure rate rose sharply.
In the use of machinery and equipment, the limit of normal use should be found in time, timely preventive repair and replacement of worn parts to prevent failure.