Why is the Color of the Fused Ceramic Sand Black?

Fused ceramic sand is popular

Casting, as the basic industry of equipment manufacturing, plays an important role in the development and application of the national economy. The total output and demand of castings are rising year by year. The industry benchmark enterprises in the field of metal casting and surface treatment always pay attention to technology research and development, and constantly introduce new products and technologies to meet the requirements of customers. More casting manufacturers use Fused ceramic sand as a new material for molding sand.

We all know that fused ceramic sand is a black round spherical sand, so why is the color of Fused ceramic sand black?

Color is one of the important optical properties of minerals, and it can also be used as an identification feature of minerals. White is the natural color of minerals. If there are impurities in minerals, they will show another color different from white. For example, bauxite is light yellow and brown. After high temperature, because it contains pigment ions such as Ti and Fe, the color of Fused ceramic sand will appear dark brown and black according to the content of pigment ions.

Fused ceramic sand factory

Sanmenxia Qiangxin Foundry Material Co., Ltd. specializes in the production of Fused ceramic sand, a new type of casting sand. It is resistant to high temperature, easy to collapse, has small thermal expansion, good regeneration performance, smooth surface, high casting precision, and does not stick to sand. It has good casting performance and has been recognized by casting experts at home and abroad**Used in various casting methods: sand casting, special casting (investment, full mold, lost foam, ladle drainage sand, etc.); It is also used in the production of shot peening, low expansion and high temperature resistant coated sand. 200/270 mesh is used in the production of lost foam coating. Adding 10-35% can effectively improve the permeability. It is suitable for the use of various casting binders. It has been used by many domestic and foreign manufacturers of cast iron and non-ferrous metal casting.


The surface of Fused ceramic sand is very smooth. As long as the old sand is slightly rubbed, the bonding film on the sand surface can be removed. Therefore, the regeneration ability of Fused ceramic sand is particularly strong. Relatively speaking, after the foundry uses Fused ceramic sand, the Fused ceramic sand supplier dedicated to ladle drainage can collect the old sand, and then without too much cost, as long as the bonding part on the sand surface is removed, then it can be recycled after screening. In this way, Fused ceramic sand can be used repeatedly, greatly reducing the use cost, which can not be replaced by other sand.