Selection strategies in practical applications
1. High end casting must choose fully graphitized carbon additive
Aerospace components, automotive engine cylinders, and other scenarios that require a carbon absorption rate of 90% must use fully graphitized products. For example, a certain automotive company's technical specifications explicitly require that the graphitization degree of the carbon additive for ductile iron be ≥ 93% and the sulfur content be ≤ 0.03%
2. Cost sensitive selection of semi graphitized petroleum coke
In the field of agricultural machinery and ordinary pipe fittings where performance requirements are not strict, semi graphitized carbonization agents can reduce raw material costs by 30% -40%. However, it should be noted that its high sulfur content (0.2-0.3%) may require an increase in energy consumption for the desulfurization process
3. New requirements under the trend of environmental protection
With the new EU regulation (EU2023/814) reducing the nitrogen emission limit of the foundry industry to 450 ppm, semi graphitized carburetors need to be used with the essence process, while fully graphitized products are more in line with international standards due to their low nitrogen characteristics.
4. According to your application
sometimes the higher the degree of graphitization, the more suitable it is for enterprise use. For gray cast iron, the small amount of activated carbon remaining in the semi graphitized Carbon Raiser can actually promote the formation of nuclei.
5.Particle size selection
Carbonizers with smaller particles have higher absorption rates than those with larger particles.
