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Advantages of sodium silicate casting sand

Advantages of sodium silicate casting sand

Sodium silicate casting sand, also known as water glass casting sand, is a popular type of foundry sand used in the manufacturing of metal castings. It consists of a mixture of silica sand and sodium silicate solution, which acts as a binder to hold the sand particles together.

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What is Sodium Silicate Casting Sand

What is Sodium Silicate Casting Sand

Sodium silicate casting sand is a type of foundry sand that is commonly used in metal casting processes. It is made by mixing silica sand with sodium silicate, a liquid binder, to create a moldable and cohesive sand mixture.

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The excellent properties of jewel sand play the role of binder

The excellent properties of jewel sand play the role of binder

For sand casting, the strength of the core sand is an important control index. How to obtain the core sand strength required by the process economically and efficiently, after the binder is determined, the type and particle size distribution of the original sand are very critical. Whether the selection of raw sand is reasonable or not is also related to whether the bonding effect of the binder can be exerted as much as possible, so as to reduce the amount of binder, improve the quality of castings, reduce the cleaning workload, and reduce waste emissions.

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Characteristics and Application of Ceramsite sand

Characteristics and Application of Ceramsite sand

The advantages of quartz sand are widely distributed and low cost; but its disadvantages are also quite obvious: first, the expansion coefficient is large, and the casting precision is low; second, the surface of the casting is seriously sticky sand, and it is difficult to clear sand. The reason is that Shi Ying will have a variety of homogeneous and heterogeneous crystals at different temperatures, with large volume changes. Limited by the refractoriness (the refractoriness of quartz sand is between 1400-1700 ℃), the local parts of the casting (holes, grooves, and parts where hot joints are concentrated) stick to sand seriously, making it very difficult to clean. The above disadvantages are particularly serious in the production of large steel castings.

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Why is Ceramsite sand used in lost foam casting?

Why is Ceramsite sand used in lost foam casting?

Ceramsite sand technology has matured in China in recent years. Although there is no industry standard in the country at present, with the continuous development of lost foam casting technology in recent years, the efforts of the majority of lost foam casting workers, the original and auxiliary materials used in lost foam casting, Process equipment, jewel sand production and technical management, etc., have fully adapted to the requirements of lost foam casting production. At present, the domestic foundry manufacturers have a number of different sizes of lost foam casting production line online production. Among them, there are many types such as "simple" type (excluding automatic sand treatment) and "automatic" type (except for placing models and pouring manually). However, regardless of the type, the matching of process equipment must be calculated when designing the lost foam casting production line. However, few people are involved in the current domestic technical data.

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