Modification of Powder Material by Compaction Processing

Abstract

Abstract. There are different criteria for assessing the appropriateness of an agglomeration technology in the deployment processing of dry, fine and dirty dust burdening in the communal and working environment. Besides the benefit of the environment components, the agglomeration technology offers the possibility of re-processing the material as the primary raw material within a wide range of industries. Preliminary tests have shown that the compressed material remains in the memory from the previous compression. For returning the already processed material into a primary production, it is essential that it is reformed without the need for additional materials, a requirement that can be problematic. This article deals with the modification of a powder material (powder dust from the manufacture of friction components) and the investigation of its properties before and after the compaction processing.

Design of Particulate Material Compactor Rolls Diameter

“…However, in Figure 13, it is observable that the function has an exponential course, with the rolls diameter of the proposed production compactor not reaching 0.185 m, so that the proposed diameter is also able to compensate for the local maximum pressure extremes p m between the rolls of the compactor. This method of designing the compactor roll could be used in the design of processing technology not only for fertilizers but also for other applications of the compacting of a particulate material (for example, dust from production of brake linings [12,20] following the elimination of the problems in this area [21,22] …”

“…The course of the single-axis compressibility test is shown in Figure 10, while a modified version, which adds a logarithm of the stress ratio ln following equation, is shown in Figure 11 [12]:…”

“…If the value of the compression force does not sufficiently exceed the required value, the sufficient sample compression does not occur. Although an exact definition of the Johanson compressibility factor is not possible, the higher this number is (tens, hundreds), the more problematic is the compaction process [12].…”

Eigenvalues Evaluation of Generally Damped Elastic Disc Brake Model Loaded With Non-Conservative Friction Force

“…The cause of double modes in experimental analyses should be closely examined by the measurement of damping properties of the system to determine how significantly non-proportional the damping is and how this non-proportionality can reduce the stability threshold value. The non-proportional damping is expected due to significantly different material properties of the friction material and the rest of the system [12]. This discussion leads to the question how much important role a general damping plays in a brake squeal.…”

Study of Samples Strength of Material Formed by the Processes of Compaction, Extrusion and Tumbling Granulation

“…The results of both analyses are in a perfect agreement (Malvern Mastersizer 3000 -DV(10)= 6.65 µm, DV(50)= 27.8 µm, DV(90)= 151 µm). The properties of the experimental material are given in [15], and were identified by standard procedures [16][17][18][19][20].…”