Powder metallurgy density meters are crucial for assessing the density of formed blanks and sintered bodies. This is because the pore structure of powder metallurgy significantly impacts the physical properties of powders, and powder metallurgy products are primarily evaluated based on criteria such as bulk density, wet density, apparent porosity, and oil content.
Specifically developed for the powder metallurgy industry, the electronic powder metallurgy density meter has gained widespread adoption. It enables direct density readings in just two steps, significantly reducing testing time. Compared to labor costs, a single investment can yield over ten years of time and labor savings.
The powder metallurgy density meter resolves density to three decimal places: 0.001. This meets the density testing requirements for most applications in the general powder metallurgy industry. The meter displays results including: density, volume, volume percentage, maximum density, minimum density, and average density.
Powder Metallurgy Density Meter Manufacturer Discusses Powder Metallurgy Mixing Processes:
The mixing process in powder metallurgy refers to the homogenization of two or more powders with different compositions. There are two primary methods: mechanical and chemical. The widely adopted mechanical method involves mechanically blending powders or mixtures uniformly without inducing chemical reactions. Mechanical mixing is further categorized into dry mixing and wet mixing. Dry mixing is extensively used in iron-based product manufacturing, while wet mixing is commonly employed for preparing cemented carbide mixtures. Common liquid media for wet mixing include alcohol, gasoline, acetone, and water. Chemical mixing involves uniformly blending metal or compound powders with solutions of metal salts; alternatively, all components may be mixed as solutions of specific salts, followed by precipitation, drying, and reduction to achieve a uniformly distributed mixture.
Commonly added additives include plasticizers (gasoline, rubber solutions, paraffin, etc.) to enhance green compact strength or prevent powder segregation, and lubricants (zinc stearate, molybdenum disulfide, etc.) to reduce friction between particles and between the compact and die walls.
