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Ferro phosphorus is a follow-up product of black or gray particles (or lumps) of coke or petroleum coke with high carbon content. It can reduce the oxygen content in molten iron and improve the mechanical properties of castings during metal melting. In the new synthetic cast iron smelting process, the amount of scrap steel used has greatly increased. By adding carburizing agents to adjust the carbon content of molten iron, production costs have been greatly reduced while ensuring the quality of molten iron.
The main reason why iron phosphate can be used instead of zinc powder is that zinc powder is relatively expensive as a corrosion resistant material. Using iron phosphate instead of zinc powder can not only reduce smelting costs, but also achieve good corrosion resistance of zinc powder if the use effect is too high. However, the effect of iron phosphate instead of zinc powder is a problem that many manufacturers are not clear about. The reason why ferrophosphate can be used instead of zinc powder and produce anti-corrosion effects is based on the cathodic protection characteristics of ferrophosphate. In practical smelting, ferrophosphate can form a conductive path, which can react with major corrosive media in the air, thereby making the smelted steel have certain anti-corrosion properties.
In addition, a combination of iron phosphate and zinc powder can be used for smelting, which can greatly improve the utilization rate of zinc powder in smelting and effectively save smelting costs.
"Phosphoric iron plays an important role in the production of steel. Compared to traditional iron alloys, it has a faster absorption rate, so the reaction speed of phosphorous iron is good. Phosphoric iron has the advantage of rapid deoxidation. Adding a certain proportion of phosphorous iron into molten steel can play a role in rapid deoxidation, effectively saving the time and cost of deoxidation, greatly improving the quality of finished steel, and effectively increasing enterprise costs.", In the actual use of ferrophosphate, ferrophosphate also has the application of a slag collector, which can effectively aggregate oxides in molten steel and effectively filter impurities in molten steel to improve the purity of molten steel! "The melting speed of ferrophosphate in molten steel is faster and its distribution is uniform, which shortens the deoxidation interval, improves steelmaking efficiency, and has a high recovery rate. Ferrophosphate can be reused, reducing labor intensity.".
the name of a shop | Chemical composition mass fraction% | ||||
P | Si≤ | C≤ | S≤ | Mn≤ | |
FeP24 | 23~25 | 3 | 1 | 0.5 | 2 |
FeP21 | 20~<23 | 3 | 1 | 0.5 | 2 |
FeP18 | 17~<20 | 3 | 1 | 0.5 | 2.5 |
FeP16 | 15~<17 | 3 | 1 | 0.5 | 2.5 |
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