Views:6 Author:Site Editor Publish Time: 2018-04-17 Origin:Site
As we all know, 45# precision seamless steel pipe is a kind of steel which belongs to the medium carbon structure. It has good performance in manufacturing machinery and equipment, hydraulic structure and auto parts, and the mechanical performance is very good. The price is also relatively low, which can be said to be a product with high practical value.
The appearance of the 45# precision seamless steel tube is also very bright, which is due to the good treatment of the surface of the steel pipe. Now let's take a look at the surface treatment technology of 45# precision seamless steel pipe.
1.Cleaning of 45# seamless steel tube: use solvent and emulsion to clean the appearance of steel, remove oil, grease, dust, lubricant and similar organic matter, but it can not remove rust, oxide skin and flux of steel appearance, so it is only used as an auxiliary means in anticorrosion production.
2.Rust removal of 45# seamless steel tube: first, we must use steel brush or other things to polish the steel surface, and remove loose or tilted oxide scale, rust and welding slag. Manual removing rust can reach Sa2 level, power removing rust can reach Sa3 level. If the steel appearance attached to the strong iron oxide skin, the effect of rust is not aspirant, can not achieve the corrosion seamless steel pipe construction demand anchor depth.
3.Acid washing: usually using two methods of chemical and electrolysis to do acid washing treatment. Pipeline anticorrosion only choose chemical acid washing, which can remove the oxide skin, rust and old coating, sometimes it can be used as sand removal after the retreatment of sand. After chemical cleaning, though it can make the appearance to achieve a certain degree of cleanliness and roughness, its anchor grain is shallow, and it is easy to pollute the environment.
4.Jet derusting: jet removing rust is through high power motor jet blade rotating high speed, making steel sand, steel ball, Tie Si section, mineral and other abrasives on the surface of steel tube under the effect of centrifugal force, not only can thoroughly remove rust, oxide and dirt, and steel pipe in the abrasive impact and friction of the work. In use, it can reach the required uniform roughness.
After finishing the surface treatment of the 45# seamless steel pipe by these methods, the appearance of the steel tube becomes brighter, and the observability has been greatly improved.