High pressure boiler tube derusting method
The derusting methods for high pressure boiler tube:
Cleaning: In order to achieve the removal of oil, grease, dirt, organic lubricant and similar organic matter, we can use the solvent, emulsion to clean the surface of high pressure boiler tube. But it can not remove the surface rust in high-pressure boiler tube, oxide, welding etc, so it only in anti-corrosion production only as an auxiliary means.
Removed rust by tools: Mainly use the wire brush and other tools for surface grinding of high pressure boiler tube, it can remove loose or tilt of the oxide, rust, welding slag and so on. Manual tool derusting can reach Sa2 level, power tools derusting can reach Sa3 level, and if the surface of the high pressure boiler tube attached to a solid iron oxide, tool rust effect is not so good, it will not achieve the requirements of anti-corrosion construction of the anchor depth.
Pickling: General use of chemical and electrolysis two methods to do pickling treatment, pipeline corrosion only use chemical pickling, and it can remove the scale, rust, the old coating, and sometimes can be used as a blasting after the re-treatment. Although the chemical cleaning surface can achieve a certain degree of cleanliness and roughness, but the anchor is shallow, and easy to cause pollution to the environment.
Rust removing by abrasive cleaning: The rust removing by abrasive cleaning is driven by high-power motor spray (throw) shot high-speed rotation of the blade, so that steel sand, steel balls, wire segments, minerals and other abrasive in the centrifugal force on the surface of the steel pipe spray (throw) shot treatment, it not only can completely remove rust, oxide and dirt, and also to achieve the required uniform roughness, which the high pressure boiler tube abrasive in the impact and the role of friction.
Cleaning: In order to achieve the removal of oil, grease, dirt, organic lubricant and similar organic matter, we can use the solvent, emulsion to clean the surface of high pressure boiler tube. But it can not remove the surface rust in high-pressure boiler tube, oxide, welding etc, so it only in anti-corrosion production only as an auxiliary means.
Removed rust by tools: Mainly use the wire brush and other tools for surface grinding of high pressure boiler tube, it can remove loose or tilt of the oxide, rust, welding slag and so on. Manual tool derusting can reach Sa2 level, power tools derusting can reach Sa3 level, and if the surface of the high pressure boiler tube attached to a solid iron oxide, tool rust effect is not so good, it will not achieve the requirements of anti-corrosion construction of the anchor depth.
Pickling: General use of chemical and electrolysis two methods to do pickling treatment, pipeline corrosion only use chemical pickling, and it can remove the scale, rust, the old coating, and sometimes can be used as a blasting after the re-treatment. Although the chemical cleaning surface can achieve a certain degree of cleanliness and roughness, but the anchor is shallow, and easy to cause pollution to the environment.
Rust removing by abrasive cleaning: The rust removing by abrasive cleaning is driven by high-power motor spray (throw) shot high-speed rotation of the blade, so that steel sand, steel balls, wire segments, minerals and other abrasive in the centrifugal force on the surface of the steel pipe spray (throw) shot treatment, it not only can completely remove rust, oxide and dirt, and also to achieve the required uniform roughness, which the high pressure boiler tube abrasive in the impact and the role of friction.
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