Simulation for grinding balls production using sand mold-gravity casting

Enhancing Surface Roughness of Castings When Sand-resin Mold Casting

T. Kovalyova, E. Eremin, S. Arinova, I. Medvedeva, A. Dostayeva, Karaganda State Technical University, Karaganda, Kazakhstan, Omsk State Technical University, Russia. In this connection, studies aimed at improving the obtaining process of high-quality castings of mining equipment are relevant. At the same time there is a need for studying physical and mechanical relationship of mixes in which a...

Sand Mold Press Casting with Metal Pressure Control System

Sand-casting technique for trans-tibial prostheses.

A sand-casting technique for trans-tibial sockets was applied to 28 amputees, and the prosthetic fit observed through transparent check sockets. The results were better than historical reports of fittings with plaster of Paris casting by qualified prosthetists. The fit was consistently and evenly larger than the stump, but total contact could be achieved by applying three (two to five) stump so...

“ Microstructural and mechanical properties of eutectic Al – Si alloy with grain refined and modified using gravity - die and sand casting ”

This paper attempts to investigate the influence of the microstructure and mechanical property changes on sand casting and permanent die casting alloys by grain refinement, modification combined action of both (Al– 3Ti–1B + Al–10Sr) and without grain refinement and modification effect. The microstructures of the castings are studied by optical microscopes. The microstructure and mechanical prop...

Simulation of transient fluid flow in mold region during steel continuous casting

A system of models has been developed to study transient flow during continuous casting and applied to simulate an event of multiple stopper-rod movements. It includes four sub-models to incorporate different aspects in this transient event. A three-dimensional (3-D) porous-flow model of the nozzle wall calculates the rate argon gas flow into the liquid steel, and the initial mean bubble size i...