Graphitized petroleum coke, carburant is through the process of smelting and become more, because the process is complex and the cost of production has led to graphitized petroleum coke, carburant quotation is high, but the graphitized petroleum coke, carburant still is ideal material of smelting in casting process, not all of the graphitized petroleum coke, carburant is necessarily better, want to choose according to casting process, Therefore, the choice of graphitized petroleum coke, recarburizing agent, casting process must be chosen!
How to choose the right graphitized petroleum coke and recarburizer in the casting process
If you choose graphitized petroleum coke, recarburizer is suitable for the casting process, then first of all, you should start from the content requirements required by the casting process, purchase the corresponding graphitized petroleum coke, recarburizer, but generally have the same requirements, that is, graphitized petroleum coke recarburizer must be low sulfur and low nitrogen.
If the graphitized petroleum coke, carburant in nitrogen content is higher than ordinary level, in the casting process can lead to a drop in the quality of castings, will produce many tiny holes within the production of cast iron, sulfur and will affect the casting process of white phenomenon, thus casting process must choose low sulfur, low nitrogen graphitized petroleum coke, carburant is right.
In addition to choose in the casting process of graphitized petroleum coke, carburant should not only low sulfur, low nitrogen at the same time also need to pay attention to the problem of the absorption rate of the better absorption rate is the “golden key” casting process to save cost, some of the graphitized petroleum JiaoZeng carbon absorption rate is low, often need to increase the absorption of furnace temperature effectively, causing high costs, lower profits, What happens when you have a better absorption rate?
Rapid chemical reaction, improve the smelting effect of the casting process, graphite distribution shape of the casting is better, greatly reduce the tendency of white mouth, these are the advantages of good absorption rate graphitized petroleum coke, recarburizer, so the casting process should also choose good absorption rate graphitized petroleum coke recarburizer!
If you are using graphitized petroleum coke, recarburizer casting process, then must choose low sulfur low nitrogen and good absorption rate graphitized petroleum coke, recarburizer so on, but often such graphitized petroleum coke, recarburizer and more expensive, so often is in the production of high quality castings will be chosen.
Post time: Jul-01-2021