How to prevent oxidation of mold copper tubes?Mold copper tube has good thermal conductivity and thermal conductivity, but it is easy to oxidize in the air. T
How to prevent oxidation of mold copper tubes?
Mold copper tube has good thermal conductivity and thermal conductivity, but it is easy to oxidize in the air. The use of antioxidants, also known as copper antioxidants, can improve the resistance to discoloration and oxidation of the copper tube of the mold. A passivation film is formed on the surface to prevent the surface from darkening and improve corrosion resistance, discoloration, and oxidation resistance. And does not affect the welding performance. Especially the use of mold copper tube, passivation treatment after grinding. The stock solution of the amount of antioxidant used can be used directly. Antioxidant protectant is the last antioxidation process in the copper polishing process. During use, the workpiece should be immersed in the drug and shaken slightly so that the workpiece can fully contact the drug. Antioxidant has no pungent odor, simple operation and high production efficiency. However, after the workpiece is treated with chemical liquid, it must be cleaned with water or pure water, otherwise it will affect the surface of the workpiece.
The anti-oxidation technology process of the copper tube of the crystallizer is: degreasing → washing twice → grinding or sulfuric acid activation 10% → washing twice → anti-oxidation treatment → washing twice → drying.
shengmiao
Harm of too high temperature: when molten steel out of cooper mold, the billet shell is thin and easy to break out; The accelerated erosion of refractory can ea
shengmiao
1. The barrier function (mainly completed by the liquid slag layer) isolates the contact between air and molten steel, blocks the secondary oxidation of molten
shengmiao
In continuous casting, low corrosion resistance often occurs, which directly leads to uneven composition and will eventually affect the smelting quality. In or