The 21st China International Foundry Expo opened grandly in the National Convention and Exhibition Center (Tianjin) from May 8 to May 11. As the director unit of China Foundry Association, Sanmenxia Qiangxin casting materials Co., Ltd. participated in the exhibition with the company's products: fused ceramic sand, resin-coated ceramic sand, shell molding application and sand recycling service.
Sanmenxia Qiangxin casting materials Co., Ltd., located in Mianchi industrial cluster zone, Henan Province, is a national high-tech enterprise, a national science and technology-based small and medium-sized enterprise, a science and technology-based small and medium-sized enterprise in Henan Province, a leader in China's foundry industry, and a leading unit in the formulation of standards for the fused ceramic sand industry. It is currently a large-scale domestic production enterprise. Production enterprises with high level of equipment automation. It has been awarded the "National Golden Tripod Award for foundry materials" by China Foundry Association for four consecutive years, and the "production base of molten ceramic sand for foundry in China" for three consecutive years, and it is the only unit in the country to win this honor.
Our company's main product, fused ceramic sand, is a new type of high-end artificial casting material, which is suitable for resin sand casting, coated sand, refractories, lost foam casting, V-process casting, shell film casting and precision casting. It is widely used in the casting molding process of aerospace, ships, railway locomotives, wind power, high-end pumps and valves, machine tools, engines, auto parts, mining machinery, etc. In addition, the ladle drainage sand, soluble mold core and surface shot peening treatment are applied. It has also been mature in application.
What is fused ceramic sand?
Fused Ceramic Sand is the custom ceramic particles with a spherical shape, high refractoriness and low thermal expansion being made by spraying the melted calcined bauxite. It provides a very simple but efficient way for the foundry-men to improving the quality of the castings, reducing the production cost and avoiding environmental pollution, because of that it has the higher price ratio comparing with Chromite sand and Zircon sand. At the present, it is acknowledged in the worldwide as the newest and the best ideal sand for the foundries and has a very wide feasibility of applications for the future development.
Ⅰ. Fused Ceramic Sand Major Parameters：
1.Shape: Sphere
2.Angle Factor: ≤1.1, very spherical
3.Bulk Density: 1.95-2.05 (g/cm3)
4.Refractoriness: ≥1790℃
5.Thermal expansion: 0.13％ (10 minutes at 1000℃)
6.Main Chemical composition (representative value):
Composition | Al2O3 | FeO3 | SiO2 | TiO2 | CaO | MgO | K2O | Na2O |
％ | 72.56 | 2.23 | 19.86 | 3.53 | 0.43 | 0.35 | 0.78 | 0.08 |
Ⅱ. Fused Ceramic Sand advantages are as follows:
1. Solid sphere: The shape of Ceramic Sand is spherical with smooth surface and less surface area and offering a very good flow ability and filling ability. To compare with other sands else, less binder is used at the same mold strength and higher venting ability. It also offers the excellent collapsibility.
2. Lower thermal expansion rate: It makes the dimensions of castings better, less crack and defect and higher output.
3. Lower breakage rate: Ceramic Sand has a higher density and a very lower breakage rate at the reclamation. It makes a better reclamation rate to reduce the waste sand to be favor to the environment.
4. High refractoriness: The major chemistry is Al2O3. PH appears neutral. It belongs to the refractoriness of the series of Aluminum and Silicon which has a very good refractory performance. It is suitable for all kinds of metal and alloy castings.