What materials are used in foundries?
In the annual output value of such castings, 60 to 70% of the castings are produced with sand molds, and about 70% of them are produced with clay sand molds. The main reason is that compared with other casting methods, sand casting is low-cost, simple in production and processing technology, and short in production cycle time. Therefore, the castings such as automobile engine cylinder liners, cylinder heads, engine crankshafts, etc., are all produced by the clay wet sand processing technology. When the wet type cannot meet the requirements, consider the use of clay sand surface dry sand type, dry sand type or other sand types. The net weight of the castings made by clay wet sand can range from several kilograms to dozens of kilograms, while the castings produced by dry clay can weigh about dozens of tons. Generally speaking, for medium, large and medium-sized castings, iron castings can be produced with epoxy resin self-hardening sand moulds, and steel castings can be produced with sodium silicate sand moulds. Castings with limited accuracy and smooth surface can be obtained, but the cost is higher.
The selection of iron raw materials by precision casting manufacturers can make many raw materials for iron, but all metal materials and non-metal materials with higher thermal conductivity and heat storage index than sand raw materials can be used. Common iron raw materials in production include pig iron, aluminum alloy profiles, high-purity graphite and copper alloys.
Casting heat-resistant alloy castings, such as jet engine leaves, streamlined contours, and refrigeration chambers, are difficult to produce based on mechanical processing technology. When we all choose stainless steel precision casting, we can choose from many levels above, and we hope that everyone can choose suitable stainless steel precision casting products.
Stainless steel castings can be produced with sodium silicate sand molds, and castings with accurate specifications and models and smooth surfaces can be obtained, but the cost is relatively high. Of course, the casting precision, surface gloss, raw material density, aluminum alloy composition, process performance and other aspects produced by sand casting are generally poor. Therefore, when such characteristics of castings are required to be higher, other casting methods should be used, such as Investment (lost wax) casting, aluminum die casting, bottom pressure casting.
Dongguan Hongzhe Hardware Products Co., Ltd. has a factory covering an area of 50 acres and a production area of 20,000 square meters. A hardware precision parts enterprise integrating production, research and development, and sales. The head office is Kaiping Hongguan Hardware Products Co., Ltd. (Foundry). The company firmly believes that high-quality products come from equipment and standardized operations. It has passed the ISO9001:2008 international quality system. Certification and UKAS, CNAB certification, and constantly introducing and adopting various management models to improve overall competitiveness. Hongzhe Hardware Products mainly produces stainless steel precision casting, stainless steel precision foundry, carbon steel casting, carbon steel precision casting, Dongguan precision casting, dewaxing casting, alloy steel precision casting, precision casting, alloy steel foundry, stainless steel casting, precision casting .