The spiral tube is a saw section of the steel plant tube, and then heated in the ring furnace-perforation-fixed diameter-school straight-cooling-drama head-packaging becomes a qualified finished product. Generally Multi -spot, this requires dealers to place some stocks, but dealers generally do not have large indoor libraries. Most of them are outdoor warehouses, and the spiral tube is inevitable to keep the sun.
The so -called rust, as the name suggests, is a layer of rust that floats to the spiral tube. It can be removed with a towel or other things. Simply put, rust is not rusty, which is normal. The rust of the spiral tube is a long time. At least one year is more than 1 year, the spiral tube passes through the wind and sun exposure, and the rusty spiral tube has large and small pit on it. The biggest difference.
Spiral tube rust removal method
The appearance of solvent and emulsion cleaning steel is used to reach the removal of oil, oil, dust, dust, smoothing agent and similar organic matter. However, it cannot remove rust, oxide, welded drugs, etc. of the appearance of steel.
Jets and rust removal is to reverse at high speeds of spraying blades by high -power motors, so that steel sand, steel pills, wire segments, minerals and other abrasives are sprayed and disposal of the steel pipe appearance under the effect of centrifugal force. And, under the effect of abrasion and friction, the steel pipe can also reach the average roughness of the required.
After spraying rust removal, it can not only extend the physical adsorption effect of the tube appearance, but also strengthen the mechanical adhesion effect of the anticorrosive layer and the appearance of the tube. Therefore, spraying rust removal is the ideal method of anti -corrosion of pipeline. Generally speaking, the spraying rust removal is first used for the inner and outer surface of the tube, and the rust removal of the shot shot is used for the surface treatment of the tube.
The main tools are used to polish the appearance of the steel wire brush, and the loose or raised oxide, rust, and welded slag can be removed. If the steel appearance is attached to the strong iron oxide skin, the rust removal result is not ideal, and the anchor pattern depth of the anticorrosive construction requirements cannot be met.
Ordinary chemistry and electrolytic methods are used for pickling and disposal. The pipeline anticorrosion is only chemical pickling. It can remove oxide, rust, and old coatings. Sometimes it can be used as a sandblast removal after rust removal. Although chemical cleaning can reach the inevitable cleanliness and roughness of the appearance, its anchor pattern is shallow, and it is easy to form pollution on the situation. The surface rust removal of the spiral steel pipe is more important.
