Dalian Gaoteng not only produces flint pebbles, but also supplies silica sand of different sizes and whiteness to meet the needs of customers in different industries. We mainly provide metallurgical casting silica sand, decorative sand, water filtration sand, construction sand, etc.

So, what are the roles of silica sand in the metallurgical casting industry?

As a core material, silica sand is the most important and largest auxiliary material in the casting process. It is mainly used as a mold material to provide the basis for the shape and size of castings. Due to the high hardness, high density, and good wear resistance of silica sand, it can withstand the impact of molten metal and high temperature environment during the casting process, ensuring that the casting can accurately replicate the shape of the mold.

Impact on casting quality: The amount of silica sand added has a direct impact on the quality of castings. Insufficient addition can lead to insufficient strength of the mold core, making it prone to casting defects; Excessive addition may lead to mold cracking, rough surface of castings, and even affect the composition of castings. Therefore, in actual production, it is necessary to strictly control the amount of silica sand added.

As a metallurgical reaction additive: Silicon sand is not only used as a mold material in the casting process, but can also play a role as an additive in metallurgical reactions. It can participate in certain chemical reactions to help adjust the chemical composition and properties of castings.

Other applications: Silicon sand can also be used as a filler in coatings, increasing the stability and durability of coatings. In addition, silica sand can also be used to manufacture high value-added products such as artificial sand and recycled sand, meeting the needs of different industrial fields.