Forged vs. Cast
FORGING Forging processes involve rolling, pressing, hammering, or otherwise shaping metal billets while still in a solid form into a precise shape through mechanical force. The heating and deformation process refines the metal’s internal grain structure by allowing metallurgical recrystallization to occur, giving a uniform structure throughout the metal form. This process strengthens the metal […]
The influence of main elements on the spheroidization rate
C, Si: C can promote graphitization and reduce the tendency of white mouth, but a high amount of ω (C) will make the CE too high and easily cause graphite to float, generally controlled at 3.7%~3.9%. Si can strengthen graphitization ability and eliminate cementite. When Si is added as an inoculant, it can greatly reduce […]
Process Measures to Improve Spheroidization Rate
The spheroidization level of domestic ordinary spheroidal graphite cast iron castings is required to reach level 4 or above, (that is, the spheroidization rate is 70%), the spheroidization rate achieved by the general foundry is about 85%. In recent years, with the development of nodular cast iron production, especially in industries with high requirements for […]