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Information Seminar Paper

Title

OPTIMIZATION OF MANUFACTURING AGITATOR SHAFT WITH THE NEW METHOD OF PLASMA: A CASE STUDY FROM THE SARCHESHMEH MINE IN IRAN

Pages

 Start Page | End Page

Abstract

 EXTRACTION OF WATER PRESENTED IN CONCENTRATED SLURRY OF CONCENTRATING UNIT OF SARCHESHMEH COPPER COMPLEX IN IRAN, IS PERFORMED IN FILTRATION UNIT, IN ORDER TO PREPARING IT FOR MELTING PROCESS. AGITATOR SHAFT IS ONE OF THE FILTERS COMPONENTS, RESPONSIBLE FOR SUSPENDING SOLID PARTICLES IN THE TANK.THE SOLID PARTICLES PENETRATE UNDER THE SEALING RIBBONS AND BOSH AROUND IT BY ROUNDING OF AGITATOR SHAFT, AND BY ACCUMULATING THERE CAUSES ABRASION AND CORROSION OF THE BOSH AND SHAFT, ESCAPING MATERIALS FROM RESERVOIR, WASTING OF SLURRY AND DISRUPTING AND HALTING THE OPERATION. BY INVESTIGATION OF CORROSION MECHANISM, TWO SOLUTIONS ARE PROPOSED AND EVALUATED AT PRESENT STUDY: SELECTING SUITABLE MATERIAL AND PERFORMING PLASMA NITRIDING HEAT TREATMENT OF PREVIOUSLY USED MATERIAL. IN ORDER TO INVESTIGATE AMOUNT OF ABRASIVE CORROSION OF INTENDED SAMPLES IN COMPARISON TO THE CK45 STEEL, ABRASION CORROSION SAMPLES AND ELECTROCHEMICAL TESTS WERE ACCOMPLISHED ACCORDING TO ASTM- G105.THE SURFACE OF SAMPLES WERE ANALYZED BY SCANNING ELECTRON MICROSCOPY AND X-RAY DIFFRACTION TEST. OBSERVATIONS SHOWED NEW SHAFT, PROVIDE MORE PROPER PERFORMANCE AT OPERATION CONDITIONS.

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