Summary of mixing process of powder metallurgy densitometer and powder metallurgy

Because the pore structure of powder metallurgy has a great influence on the physical properties of powder, and powder metallurgy products according to its needs are bulk density, wet density, apparent porosity, oil content rate as the main identification criteria, so the density detection of forming body and sintered body is particularly important.
According to the characteristics of powder metallurgy industry, the electronic powder metallurgy densitometer has been widely used in powder metallurgy industry.
It only takes two steps to read the density value directly, which saves a lot of testing time.
Compared with the labor cost, one investment can save time and labor cost for up to ten years.
Powder metallurgy densitometer density analysis to three decimal places: 0.001, for the general powder metallurgy industry users, can meet most of the industry density test requirements, powder metallurgy densitometer can show the results are: density, volume, volume percentage, density maximum value, density minimum value, density average, etc..
Powder metallurgy densitometer manufacturers on powder metallurgy mixing process:
The mixing process of P/M refers to the homogenization process of two or more powders of different composition.
There are basically two methods of mixing: mechanical method and chemical method, the widely used is the mechanical method, the powder or mixture is mechanically mixed evenly without chemical reaction.
Mechanical mixing can be divided into dry mixing and wet mixing. Dry mixing is widely used in the production of iron based products.
Wet mixing is often used in the preparation of cemented carbide mixtures.
Wet mixing often used liquid media for alcohol, gasoline, acetone, water, etc.
Chemical mixing is a mixture of metal or compound powder and salt solution with added metal;
Or the components are all mixed in the form of a salt solution, and then by precipitation, drying and reduction treatment to get a uniform distribution of the mixture.
Often need to add additives, used to improve the strength of the billet or prevent powder component segregation of plasticizer (gasoline, rubber solution, paraffin, etc.), used to reduce the friction between particles and between the billet and the mold wall lubricant (hard zinc acid, molybdenum disulfide, etc.).