The work is devoted to researching a new method of hot direct-reverse extrusion hollow conical products from high-carbon steel and determinated parameters for technological design. considered makes it possible obtain in one step with different wall thickness height, while the upper part product can be greater than bottom part. dimensions initial workpiece are determined by modeling using finite...

Hot-melt extrusion is commonly applied for forming products, ranging from metals to plastics, rubber and clay composites. It is also increasingly used for the production of pharmaceuticals, such as granules, pellets and tablets. In this context, mathematical modeling plays an important role to determine the best process operating conditions, but also to possibly develop software sensors or cont...

Two new ferrito-martensitic oxide dispersion strengthened (ODS) steels reinforced with (Y, Ti, O) nanoparticles were elaborated using a high-energy attritor. The milled powder was consolidated by hot extrusion at 1050 °C. two types of ODS differ chromium content, 10 wt% Cr and 12 respectively. According to thermodynamic calculations, those grades are supposed exhibit an austenitic transformatio...

This research work has been carried out to study the effect of different Ca contents (0.5, 1.0, 1.5, 2.0 and 3.0) on the microstructure and porosity content of ZK60 alloys. The samples were examined by using optical and scanning electron microscopy (SEM) to evaluate the modification efficiency of the alloy with different Ca concentrations. The cast specimens were modified, homogenized and extru...

case of 18 kN, a considerable portion of the particles are mechanically broken. The structure is condensed nearly without cavities. It might be useful to prepare pellets of high density, as the diffusion coefficient of tritium in Li,SiO, or Li4Si04 is on the order of 2 magnitudes higher than in the other lithium compounds.’ Li2Si03.nH20 is X-ray amorphous. ‘ A considerable portion of the powder...

Taste is the ability to determine flavor of substances like food, drug, etc. The aspect taste only occurs when drug get soluble in saliva. Firstly gets dispersible saliva then they show interaction with bud and perception occurred. above test receptor binds molecules generates electrical impulses from area brain that cranial nerves 7th ,9th 10th occurs. Currently varieties drugs are available c...