Basic Information of Sand Casting Foundry?

Sand casting foundry is a manufacturer that produces castings with green sand casting, coated sand casting and furan resin sand casting as the main processes. In sand casting foundries in China, some partners also classify V process casting and lost foam casting into the big category of sand casting. The molding of sand casting plants is generally divided into two categories: manual molding and automatic mechanical molding. As an implementer of the most versatile and cost-effective casting process, sand casting foundries have an important basic position in the modern equipment manufacturing industry. In almost every aspect of the industrial field, there are kinds of castings produced by sand foundries. The castings produced by the sand casting foundry account for more than 80% of all castings. With the continuous improvement of the new technological level and the continuous availability of new materials and new technologies, the actual sand casting process in casting has also made continuous progress. This article will introduce the relevant information of what is sand casting foundry from several aspects. Hope it will be helpful to all partners and users.

Casting Materials
There are many types of casting materials, of which the most consumed is molding materials, followed by other non-recyclable materials. The molding materials of sand foundries mainly refer to raw sand, refractory materials, binders and coatings. These materials are mainly used for making casting molds and sand cores.

Cast Metals
Cast iron is the most commonly used metal material in sand casting. In actual casting, the foundry generally smelts the pig iron and the required alloying elements in a certain proportion to obtain the required metal castings that can meet the chemical composition. For nodular cast iron castings, attention should also be paid to whether the spheroidization rate of the castings can meet the requirements of users. Generally speaking, China's sand casting foundry can cast the following metal materials:
• Cast Gray Iron:  GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350
• Cast Ductile Iron: GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2
• Cast Aluminium and Their Alloys
• Cast Steel or other materials and standards on request

Sand Casting Equipment
Sand casting foundries generally have special casting machinery and equipment, including but not limited to sand mixers, sand processing systems, dust collectors, molding machines, automatic molding production lines, core making machines, electric furnaces, cleaning machines, shot blasting machines, grinding machines and machinery Processing Equipment. In addition, there are necessary testing equipment, among which metallographic testing instruments, spectrum analyzers, hardness testers, mechanical performance testers, vernier calipers, three-coordinate scanners, etc. are indispensable. Below, take the equipment of RMC as an example to illustrate the equipment used in sand casting plants: