Silicon carbide powder making process flow

The hardness of silicon carbide is between corundum and diamond. It has high hardness and wear resistance. The finer the particle size, the higher the mechanical strength, shatter resistance and strong toughness.HCM Guilin Hongcheng Machinery is a manufacturer of silicon carbide grinding machines. Today we will introduce the crushing and powdering process of silicon carbide.

The choice of silicon carbide crushing process is to first determine the number of crushing stages, which depends on the initial feed particle size and the particle size requirements of the final crushed product. Under normal circumstances, final products cannot be produced only through primary crushing. (Except for broken third-grade products)The initial feed particle size is related to the smelting classification method and the storage and storage method of the classified products; the final crushed product particle size mainly depends on the product process requirements after crushing and the on-site equipment process level. The crushing section is generally divided into: one-stage method, two-stage method, and three-stage method. The one-stage method is mainly primary crushing: that is, jaw crushing and hammer crushing are used for crushing; and hammer crushing can only crush third-grade products with smaller hardness. The product particle size is generally between 0-30mm and 0-50mm. The particle size of hammered products without screening is generally around 0-10mm. The two-stage method is mainly primary crushing plus intermediate crushing: that is, using a jaw crusher for primary crushing and then using large and medium-sized crushers such as roller crushers, hammer crushers, and impact crushers for intermediate crushing, and then obtaining the final product. The particle size of roller crushing products is generally around 0-30mm. The particle size of hammer crushing and impact crushing products without screening is generally around 0-10mm. The three-stage method mainly consists of primary crushing plus intermediate crushing followed by fine crushing: that is, after using the jaw crusher for primary crushing, use large and medium-sized crushers such as roller crushers, hammer crushers, and impact crushers for intermediate crushing, and then use ball mills and bars. Mark crusher, wheel milling, etc. to obtain the final product. The particle size without screening is generally around 0-5mm.With the vibrating screen, products with a size of 0-1mm can be obtained, and the sieve overhead is generally about 10%-30%; the sieve overhead of the Barmac crusher can reach about 30%-50%. Judging from the particle shape of the product, wheel milling is the best and ball milling is the worst. The silicon carbide powder making process also belongs to a three-stage method: primary crushing plus intermediate crushing followed by Raymond mill powder processing.

Silicon carbide powder making process: First, the raw materials are initially crushed by the jaw crusher, and then further crushed by the roller crusher. The finely crushed raw materials enter the ball mill or Raymond mill for fine processing. Finally, the final product is screened through a vibrating screen. For products that require magnetic substances, a magnetic separator must be used to remove magnetic substances. Finally, the processed products are officially sealed and stored in the warehouse after passing product testing and meeting the technical specifications. The difference in the silicon carbide powder making process plan is mainly the use of ball mill or Raymond mill for fine processing; the particle shape of the product using the ball mill is better, and the dust can be well controlled during product processing, but the disadvantage is: the productivity of the ball mill is lower If it is low, there will be more objects on the sieve and less loss during screening. When using a Raymond mill, the particle size of the product is finer. During the screening process of the product, the dust cannot be controlled, and there are less objects on the sieve, but the loss during screening is greater.

As a manufacturer of silicon carbide grinding mills, Guilin Hongcheng's silicon carbide Raymond mills have been widely used in the market. If you have relevant purchasing needs, please leave us a message for details:mkt@hcmilling.com