Ductile casting is a common material casting in the machinery industry, and its superior performance has been recognized by various industries. According to the size and structure of the ductile castings, the casting processes used are also different. The main uses are special box castings, key stress components, high temperature resistant castings, high pressure resistant castings, etc.

For ductile castings that cannot be used in the industry, there are many casting processes to choose from, and the casting process is mainly matched according to the use of ductile castings. The types of ductile castings can be roughly divided into ordinary ductile castings, high temperature resistant ductile castings, and high pressure ductile castings. Their modeling process is very different, the following is a brief introduction with a few examples.

Classification of ductile castings

The main purpose of ordinary ductile castings is some mechanical castings for key parts, which will not be overstressed. For example, some castings such as the end covers of the box, the covers of the municipal well ring, and the rapping hammer, these ductile castings have relatively low quality requirements. In this case, the cement sand lost foam molding process can be used for production casting, and the advantage is that the casting production cost is slightly lower.

High temperature resistant ductile castings are mainly used for parts or casting products in some high temperature environments, such as automobile cylinder blocks, grate bars, grate, and hot die castings in boiler accessories. Such ductile castings have stricter internal quality requirements and cannot have large casting defects. Such components usually use resin sand wood casting process or lost foam vacuum molding process. The advantage is that there are few casting defects and a smooth appearance.

High pressure resistant casting is a high pressure resistant ductile casting product used on high pressure equipment, such as high pressure water conservancy equipment, valve body on pressure vessel and other ductile casting products. Such casting products are generally cast using aluminum mold quartz sand molding process or film-coated sand casting process. The disadvantage is that the casting cost is expensive and the price is 1-2 times that of ordinary ductile castings.

The future development of ductile castings

Energy-saving requirements have led to a fundamental redesign of parts to achieve light weight and high efficiency, which inevitably reminds designers to focus on materials. Ductile iron is increasingly recognized as offering high strength-to-weight properties and can be produced at relatively low cost. While the increase in tonnage and market penetration of ductile iron is astonishing, this material will never be seen reaching its full potential. Based on this, foundries that do not produce ductile iron are advised to reconsider this possibility well.

Therefore, it is expected that the tonnage of ductile iron production will continue to increase with the replacement of gray iron, malleable iron and silver castings. Published journals are helpful in helping manufacturers in this area, although the value will increase and improve. However, after the molten iron temperature is lower than 1450 "C, the inoculation effect is very poor, and the RG value is almost unchanged. It can be obtained from Table 3: the quality index of inoculated cast iron smelted with foundry coke is 18% higher than that of metallurgical coke smelting. It is worth noting that The relative hardness was reduced by 3%.

Conclusion

Through the above introduction, you can choose a suitable ductile casting casting process according to the properties of the casting you need, and make an accurate price budget in advance. For more questions about ozark trail cast iron,reconditioning cast iron skillets,unseasoned cast iron, please feel free to keep in touch with us.