Powder metallurgy densitometer is suitable for boiling method and vacuum saturation method measurement, using Archimedes principle buoyancy method to accurately read measurement values. It can directly read the density of structural components and the effective porosity, wet density, and volume of oil containing alloys. Directly read the oil content of sintered oil containing bearings. The instrument adopts a large water tank design to reduce the error caused by the buoyancy of the suspension line.

In powder metallurgy, theoretical density is sometimes used to estimate the quality of experimental materials; Estimate the maximum density that the green body can achieve; Calculate density; Calculate the target density for powder forging. When calculating the theoretical density, it can be calculated according to the following formula:

D=1/w - ①

In the formula, w=a/da+b/db+..., where d - theoretical density (g/cm3); a. B - represents the mass percentage of components a and b respectively; Da and db are the theoretical densities (g/cm3) of components a and b, respectively. The theoretical density of each component can be found in a manual, and for approximate calculations, the density of a dense component can also be used, such as iron, which can use the density of pure iron.

Sometimes in the material formula of enterprises, iron powder is used as 100%, and other ingredients are added externally, such as iron powder 100%+copper powder 2%+graphite 0.7%+. The material formula of this additional method, such as converting the content of each team member into a percentage before calculation, may result in significant errors. The conversion percentage can be calculated according to the following formula:

A%=a/∑ * 100%; B%=b/∑*100%-②

In the formula, ∑=a+b+; A. B,..., represents the names of each team member; a. B,..., represents the proportion of each team member.

The theoretical density calculation formula for powder metallurgy density meter manufacturers is fundamental, and this formula must be used no matter how it is calculated. However, if the analysis is not based on the actual situation, this formula should be used uniformly without any changes. When dealing with formulas, it is important to understand their connotations, know the specific situations in which they are used, and then flexibly apply them according to the actual situation. Otherwise, it is like blindly applying them.

For the theoretical density of powder metallurgy, it is not strictly the theoretical density. Strictly speaking, the theoretical density can only be calculated by knowing the composition percentage and crystal cell structure of each component of the material. The composition of powder metallurgy materials is complex, and the various structures and proportions of the sintered material are even more difficult to determine. Therefore, for powder metallurgy materials, it is difficult or even impossible to calculate the theoretical density strictly. Although it is not strictly a theoretical density, this thing has a certain guiding role and practical significance in both experimentation and production.