Hebei ChongSheng Special Steel Pipe Co.,Ltd.
16Mn is Q345 as carbon steel, 16Mn basically intolerant corrosion, if there is no good storage site but placed in the outdoor or humid environment, carbon steel will rust. This will require him to rust treatment.
The first way: pickling
General use of chemical and electrolytic two methods for pickling treatment, pipeline corrosion only chemical pickling, you can remove the oxide, rust, the old coating, and sometimes can be used as a blasting and then re-treatment. Chemical cleaning, although the surface can achieve a certain degree of cleanliness and roughness, but the anchor is shallow, and easy to cause pollution to the environment.
Two: cleaning
The use of solvents, emulsions to clean the surface of steel to achieve the removal of oil, grease, dust, lubricants and similar organic matter, but it can not remove the steel surface rust, oxide, welding, etc., so in the anti-corrosion production only as an auxiliary means.
Three: tool rust
Mainly the use of steel wire brush and other tools to polish the steel surface, you can remove loose or tilt of the oxide, rust, welding slag and so on. Cold-drawn seamless steel pipe manual tool rust can reach Sa2 level, power tools rust can reach Sa3 level, if the steel surface attached to a solid iron oxide skin, tool rust effect is not ideal, not up to the requirements of anti-corrosion construction of the anchor depth
Four: spray (throw) shot rust
Spray (throw) shot rust is driven by high-power motor spray (throw) shot high-speed rotation of the blade, steel sand, steel balls, wire segments, minerals and other abrasives in the centrifugal force on the surface of the steel pipe spray (throw) , Not only can completely remove the rust, oxides and dirt, and the steel pipe in the abrasive impact and friction under the effect, but also to achieve the required uniform roughness.
Spray (throw) after the rust, not only can expand the physical adsorption of the surface of the tube, but also enhance the coating and the pipe surface of the mechanical adhesion. Therefore, the spray (throw) shot rust is the tube
Hebei ChongSheng Special Steel Pipe Co.,Ltd.