Inoculated Castings Parts

The remarkable characteristics of Inoculated Castings Parts are low sensitivity to wall thickness and uniform structure in all parts of the casting. The tensile strength of incubated cast iron can be increased to 373, and the bending strength can reach 588. Modified cast iron is mainly used to make important parts such as cylinders, cams, gears and machine tool castings that require low dynamic loads but high resistance to static loads.

The characteristics of Inoculated Castings Parts are: the strength and toughness are better than those of ordinary gray cast iron, and modified cast iron makes the structure of castings with different wall thicknesses more uniform, and the properties are basically the same. Therefore, incubated cast iron is often used for the production of large castings with high mechanical requirements and large changes in cross-sectional dimensions.

Advantages of Inoculated Castings Parts

Compared with the traditional multi-package incubation process, Sui Liu incubation has unique advantages in the modern molding process. First of all, it is the advantage of the amount of inoculation agent added. The grafting dose added by the inoculation method is generally 1/3 of that added by the reverse inoculation method. Secondly, flow inoculation can significantly prevent the adverse effects; grafting recession on the castings; Finally, flow modification can maximize the self-feeding of graphite molding.

The flow inoculation process can significantly improve the nucleation ability of gray iron, and the risk of defects such as shrinkage and porosity in the molten iron after incubation is greatly reduced.

What are the applications of casting inoculants?

The inoculants are suitable for gray and malleable cast iron, and can promote the formation of complete graphite nodules to type "A" graphite. At present, in the production of castings, most manufacturers understand the method of using inoculants to improve the quality of castings. In the production of castings, this plays a decisive role and one must be careful when using inoculants. A little carelessness can lead to big production problems.

Gray cast iron without modified treatment has an unstable microstructure, poor mechanical properties, and white spots appear on the thin wall of the casting. In order to ensure stable casting quality, grafting treatment is necessary.

The inoculant used in the inoculation of cast iron is added in small quantities and has little effect on the chemical composition of the cast iron, but has a great effect on its microstructure. The mechanical properties of gray cast iron largely depend on this. on its microstructure, so it can improve the mechanical properties of gray cast iron, and also has a significant effect on its physical properties.