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Special Application of Lost Foam Casting Process in Casting Production

In recent years, the lost foam casting process has developed rapidly, and the scope of application is becoming more and more extensive. This method does not need to start the mold, repair, under the core, close the box, the modeling of the use of non-adhesive dry sand filled plastic foam pattern, in the negative pressure conditions of solid pouring. It greatly simplifies the operation process and improves production efficiency; the casting quality is good and the process yield is high; it not only improves the working environment, but also reduces labor intensity. The many advantages of the lost foam process determine that it has great potential in casting molding and special applications. For example, high manganese steel parts are treated with hot water by casting surplus. The lost foam process solves the crack defects of thin-walled, wear-resistant and heat-resistant castings. In recent years, the author has accumulated some experience in the production practice of lost pattern. In this paper, combined with the characteristics of lost foam casting, the special application of several aspects of the process is briefly described.

2020

11-26

Casting Technology of Lost Foam Grinding Ball

The advantages and process characteristics of lost foam casting are especially suitable for the casting of grinding balls. It gives full play to the characteristics of investment casting that can be grouped and poured in series, and does not need crust. It has the advantages of high process yield, high production efficiency and high product quality. Lost foam casting grinding ball is a relatively simple type of lost foam casting process. Lost foam casting grinding balls must meet the national standards for grinding balls. As well as the Ministry of Power, the Ministry of Building Materials and other standards. At the same time, the production of grinding ball manufacturers in accordance with the above standards, combined with the requirements of users, according to the local raw material conditions, appropriate adjustment, such as near the production of rare earth mining area or other mineral materials with rare earth elements, in the casting of grinding ball when the appropriate amount of people can improve the mechanical properties and performance of the grinding ball.

2020

11-26

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