What is the Particle Size and particle Size Distribution of Ferroalloy Powder?
Particle Size: The size of the debris particles is called particle size. Particle size is measured by particle diameter (generally long or medium diameter).
Particle size distribution: The powder sample is divided into several levels according to different particle sizes, and the percentage of each level of powder (by mass, quantity or volume).
Ferroalloy Powder Uses
- Silicon carbide: lumps are mostly used in the metallurgical industry, and granular sand is used in coatings, grinding, and other industries.
- Ferrosilicon nitride: block is used for steelmaking, powder is used for steelmaking or refractory materials. 200mesh
- Silicon metal: refractory materials, powder metallurgy
- Ferrochrome powder: mainly used for steelmaking and making welding rods
- Ferrosilicon powder: used in mineral processing and making welding rods
- Calcium silicon powder: cored wire 0-3mm, 0.2mm. The factory cannot make powder that is too fine, as it is easy to explode.
- Metal calcium powder: Metal calcium powder can be used to make ceramics, cored wires, etc.
Ferroalloy Powder Particle Size Testing Method
Screening method: Screening method is generally divided into manual screening method, mechanical screening method and air injection screening method. Manual sieving and mechanical sieving are suitable for determining most samples with particle sizes greater than 75 μm. For samples with particle sizes less than 75 μm, air jet screening or other appropriate methods should be used.
The mechanical screening method uses mechanical methods or electromagnetic methods to produce vibration modes such as vertical vibration, horizontal circular motion, flapping, and a combination of flapping and horizontal circular motion. The air jet screening method uses flowing air flow to drive particle movement.
Light scattering method: Scattering occurs after a monochromatic light beam irradiates the particle test sample. Since the energy distribution of scattered light is related to the size of the particles, by measuring the energy distribution (scattering angle) of scattered light and based on Mie scattering theory and Fraunhofer approximation theory, the particle size distribution of the particles can be calculated. The measurement range of this method can reach 0.02~3500μm. The instrument used is a laser scattering particle size distribution analyzer.