Sand casting or sand mould casting is a widely known method of metal cast production. The procedure is generally followed to produce non-ferrous metal casts. Practised for a long time, the casting process has undergone different changes.

Reasons to Choose Sand Casting

The specialists choose sand casting over other methods for its precision and customisable features. To get the desired result, it is important to choose the right type of sand for moulding. One can find different types of sands in the market. The characteristics of the sand differ from each other, owing to which these are used in different stages of cast manufacturing.

Types of Sand Used in Manufacturing Metal Casts

One can get detailed information about the types of sand used by sand casting manufacturers in this blog. These are used in different stages of the production process to get a precise result.

1. Green Sand: These are natural sand with high moisture content. Apart from 8% water, the sand is composed of clay and silica. Using green sand is highly beneficial as it offers fast and cost-effective cast production. The mould of green sand is generally soft and contains the risk of collapse or shift during the casting process.
2. Resin Sand: One can form a solid mould with a smooth surface by heating and mixing resin sand. A solid mould can produce a precisely designed metal casting with lesser defects. The burning and mixing of the resin sand generally slow the production process. The resin used in the sand can be reused by replenishing frequently.
3. Core Sand: This sand type is used for core moulding. Generally, silica sand is mixed with core oils, including resin and linseed oil. The sand may also contain other materials for establishing a strong bond on the mould. Core sand is well known among casting producers for its compressive strength.
4. Sodium Silicate: This is a useful compound that can be used in forming mould casting. Commonly known as water glass, sodium silicate can instantly change its form when carbon dioxide is passed through it. One can use Sodium Silicate if the casting requires a cavity. The core of the casting will be rendered useless if the mixture is not done properly.

These are some common types of sand used in manufacturing metal castings. To work with a team of trusted sand casting manufacturers, one can visit NAP Engineering Works. Their workers can provide complex metal designs with accurately engineered sand moulds. The castings are suitable to use in different industries. One can visit their website to know more.