Solvents and emulsifiers are used to clean the steel surface to remove oil, grease, dust, smoothing agent and similar organic matter, but they can not remove rust, oxide scale (corrosion products formed by oxidation), welding flux, etc. on the steel surface, so they are only used as auxiliary wrist in anticorrosive consumption.
2. Tool Rust Removal
Mainly use steel brushes and other tools to stop grinding steel appearance, can remove (qch) loose or warped oxidation skin, rust, welding slag and so on. Rust removal of hand tools can reach Sa2 level, power tools can reach Sa3 level. If the steel surface is adhered to strong iron oxide (Fe?O?) skin, the effect of tool rust removal is not ideal, and the depth of anchor lines required for anti-corrosion construction can not be reached.
Chemical (Chemistry) and electrolysis (method) are commonly used for acid cleaning. Conduit corrosion protection only uses chemical acid cleaning, which can remove (qch) oxidation coatings, rust and old coatings. Sometimes it can be used as re-disposal after sandblasting and rust removal. Chemical cleaning can make the appearance reach a certain degree of cleanliness and roughness, but its anchor lines are shallow, and it is easy to pollute the environment.
4. Rust Removal by Spraying (Throwing) Shooting
Rust removal by spraying (throwing) is a process of high-speed rotation of spraying (throwing) blades driven by high-power motors, which enables abrasives such as steel sand, steel balls, wire segments and minerals to stop spraying (throwing) on the surface of steel pipes under centripetal force (role). It can not only thoroughly remove rust, oxidation and dirt, but also steel pipes are impacted and polluted by abrasives. Under the action of friction force, the required average roughness (jn yn) can also be achieved. Seamless steel tube has hollow section, which is widely used as a pipeline to deliver fluids, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has lighter weight when its bending and torsional strength is the same. It is a kind of steel with economic section.
With the summary above Jinan galvanized pipe, I hope it will be helpful to our customers. If you don't understand or ask for help, please click on our website: http://www.jnxjm.com or call for consultation. We will try our best to solve it for you.