The efficiency of grinding and flotation process in copper-molybdenum processing circuit, largely affected by performance thickeners hydrocyclones devices. goal this paper is to investigate the effect rate-limiting factors on these devices consequently separation molybdenum circuit. So, a full mineralogical study have been carried out outputs hydrocyclone molybdenite According results, coarse-g...

Abstract. A Fuzzy-PID controller is designed for tracing reference cutting forces in grinding by integrating a high performance fuzzy controller and an easy to use PID controller. When the error of the grinding force is large, in order to respond quickly, the fuzzy controller with a self-tuning factor is adopted and the Max-Proc strategy is also used. This will be good for fuzzy reasoning. If t...

This work studied the grindability of the multidirectional carbon fibre-reinforced plastic (CFRP) composites with the panel layup of [(0◦/90◦/45◦/−45◦)3]s. Focuses were on the chip formation, material removal mechanism, ground surface features and grinding force characteristics. The results were systematically compared with the unidirectional CFRP composites. It was found that the grinding forc...

The influence of occlusal condition at the onset of temporomandibular dysfunction (TMD) has been strongly debated for many years. Occlusal disharmony has often corrected by selective grinding in occlusally sensitive patients with pain or dysfunction of muscular origin. This procedure should be preceded by the splint therapy in order to test the occlusal changes. The objective of this case repor...

The mechanistic approach has proven so far to be flexible and successful for simulation of the grinding process. The basic idea underlying mechanistic models, namely the matrix and population balance models, is based on the identification of natural events during grinding. Since each model has its own capabilities and limitations, their combined use may offer additional advantages on this aspec...

In general, control of metal dust from hand-held disk grinders is difficult because such respirable dust tends to disperse in every direction around the grinding wheel and cannot be captured effectively by a conventional exhaust hood. The author described the application of a custom-made tool-mounted local exhaust ventilation (LEV) system attached to a hand-held disk grinder, and by laboratory ...

Activated carbons were obtained from the cryogenic grinding of used tyres using the liquid nitrogen as agent of freezing and compared to those obtained by the ambient grinding,. These products were prepared using the chemical activated method. It consists of impregnation of the powder obtained from the cryogrinded and ambient grinded used tyres by phosphoric acid, followed by a carbonization at...