Metallurgical Carbon Black
This product can be extensively filled in rubber compounds, boasts good processing properties, and has minimal extrusion shrinkage. The vulcanized rubber exhibits high elasticity, low heat generation, minimal deformation, excellent low-temperature performance, and relatively high modulus of elasticity, although its tensile strength and elongation at break are lower.
This product is produced based on the improved natural gas semi-reinforced furnace carbon black production process for metallurgical use. Carbon black is used. It is an important raw material in the metallurgical industry, mainly used as a carbon blending material in the hard alloy smelting process, and can also be used as the construction material for graphite tube resistance furnaces.

Usage and Function: Most metals interact with carbon below their melting point temperature, therefore, in1200-2200°CAt a certain temperature, the carbides of refractory metals can be obtained. Industrially, tungsten carbide is prepared, which is a mixture of appropriate tungsten powder and carbon black heated to a certain temperature in a carbon tube furnace. At high temperatures, carbon diffuses into the tungsten particles from the surface inward. During the diffusion process, some carbon black comes into direct contact with the surface of the tungsten particles to participate in the diffusion, while another part forms carbon monoxide on the surface of the particles. Due to the concentration gradient, carbon is continuously decomposed from the surface of the tungsten particles, providing carbon for the gas-phase carbon diffusion process. The impurities (including sulfur content) in the metallurgical carbon black have a significant impact on the properties of tungsten carbide, etc., and are therefore a major indicator of the quality of this product.

Metallurgical carbon black has zero sulfur content, very low heat loss and volatile matter, and minimal ash. It has a powdered appearance. Its conventional physical and chemical properties are similar to those of fine particle thermal cracking carbon black, with the outstanding feature of high purity (carbon content).≥99 %Low sulfur content, minimal ash and other harmful impurities. Used in metallurgical industry as an important raw material, this product primarily serves as a carbon blending material in the hard alloy smelting process and can also be used as construction material for graphite tube resistance furnaces. The impurities in metallurgical carbon black (including sulfur content) significantly affect the properties of tungsten carbide, making it a key indicator for assessing the quality of this product.