Coated sand steel castings are covered with a protective film in the space formed on the outer surface of the sand mold, so that the molten iron at high temperature does not directly contact the sand core and sand mold. This kind of sand mold is more suitable for manufacturing large and complex steel castings. . In this process, a mixture of sand and other materials, such as clay or resin, is applied to a form or core to form a mold. The coating helps increase the strength and stability of the mold during the casting process. After the mold is ready, pour molten steel into the mold cavity. The steel solidifies and takes the shape of the mold, forming the desired steel casting. The coating on the sand helps prevent defects in the final casting, such as sand inclusions or surface imperfections.

Features:

  ● Achieve high-precision casting manufacturing to meet applications that require high dimensional and shape accuracy.

  ● Provides better surface quality of castings and reduces defects and undesirable surface problems, thereby reducing the need for subsequent machining processes.

  ● Achieve complex-shaped casting manufacturing, including internal structures and cavities, to meet various design requirements.

  ● It has high production efficiency, can produce castings in batches, improve productivity and reduce costs.

  ● The sand used in the coated sand casting process can be recycled and reused, reducing resource waste and environmental pollution.

  ● It is suitable for various types of steel, including low carbon steel, alloy steel, stainless steel, etc., and can meet the needs of different fields.

Coated sand steel castings have the characteristics of high precision, good surface quality, adaptability to complex shapes, high efficiency, environmental protection and energy saving, etc., and are widely used in industries such as automobiles, aerospace, machinery, etc. that require high quality and complex steel components.