Superabrasive grinding tools by Freeze Granulation Freeze Granulation is today being used for the production of high quality superabrasive grinding tools, where the superabrasive grains are homogeneously distributed in the grinding tool. This results in a grinding wheel with higher grinding capacity and longer grinding and cutting tool life. Please contact us and we will further discuss… Continue reading Superabrasive Grinding Tools
Tag: Freeze Granulation
How to make granules from powders
By using Freeze Granulation or Spray Freeze Drying it’s possible to make spherical, homogeneous and dust-free granules with optimal flowability which is critical for automatic uniaxial pressing of for ex ceramics and metal powders.
Granule drying
In the Freeze Granulation process, freeze drying/lyophilizing is used as the granule drying method for to sublimate the nano ice and there by avoid melting of the frozen granulate. Please contact us for more information and a test-granulation of your powder system.
Wet granulation
Freeze Granulation – homogeneous wet granulation of powders Freeze Granulation is a wet granulation method where the powders, chemicals and binders are first mixed and dispersed in a solvent. In the next step the homogeneous slurry is pumped and sprayed through a nozzle to form droplets, which are sprayed into liquid nitrogen for instant freezing.… Continue reading Wet granulation
Freeze Granulation of ceramic powders
Freeze Granulation offers the possibility to produce very soft, spherical granules which show an excellent flowability. The granules can be compressed to compacts of high homogeneity and they are completely redispersable. Freeze Granulation is a granulation technique which combines the advantages of spray drying and freeze drying. Hard granules are prevented by this technique excluding… Continue reading Freeze Granulation of ceramic powders
Applications for Freeze Granulation
Typical applications for Freeze Granulation are homogeneous granulation and drying of engineering (advanced, fine, high-performance) ceramic powders; oxides (alumina (Al2O3), zirconia (ZrO2), silica (SiO2)), nitrides (silicon nitride (Si3N4)) and carbides (SiC) and also granulation of powders of metal oxides, plasma spraying, nanomaterials (nanopowders), diamonds (PCD/CBN inserts), LED Lighting, pyrotechnicals (igniters, delay elements) and drying of pharmaceuticals and drugs, and for drying… Continue reading Applications for Freeze Granulation
Plasma spraying
Freeze Granulation is today being used to process plasma spraying powders for to achieve a homogeneous mixture and spherical granules for improved thermal spraying performance. — Please contact us and we will further discuss the opportunities with Freeze Granulation on your powder system and read more on technology and we propose a Granulation Test of… Continue reading Plasma spraying
Protein aerosol powders
Freeze granulation, as opposed to spray drying, has been shown to produce protein particles with light and porous characteristics, which offered powders with superior aerosol performance due to favorable aerodynamic properties, suitable granulation technology for protein inhalation powders.
Granule homogeneity
Migration and segregation of the constituents that is common in other granulating processes such as spray drying is avoided in Freeze Granulation. By instant freezing of small droplets critical ice crystal growth is avoided. The freeze drying where the liquid medium is sublimated ensures homogeneity preservation, limited oxidation and soft bonds within the granules. This provides… Continue reading Granule homogeneity
Thermal spraying
Homogeneous thermal spray powders, for forming thermal spray coatings, can be made by Freeze Granulation. The homogeneity of the spray powders is very important, not only for composite spray powders and by using FG you will keep the homogeneity throughout the process.