[Url = http://www.findxk.com/pro69.htm energy-saving ball mill [/ url] hollow shaft and simplified connection under normal circumstances, the hollow shaft with flange, flange and simplified with open up the hole, to stay two or three pin hole with a threaded pin to pin connected through-hole connection with an ordinary screw, pin hole is to locate and limit. During operation, due to distortion, expansion and contraction, heat and water vapor corrosion articulation pin and pin hole with the size change, loose limit can not position under the distorting effects of the other screws loose, hollow periodic dislocation axis and the cylinder. Shearing force and tensile force, the passage of time, the screw began to break, beginning not do anything, and broken on the exchange, put on to continue to fracture, later after repeated analysis, 50 percent of the connecting screws changed the articulation pin connection, once and for all does not appear to fracture phenomena. 
 Energy saving [url = http://www.findxk.com] mill [/ url] high chromium cast iron instead of ordinary steel balls to show the advantages are very obvious, the new anti-wear materials with high chromium cast iron grinding in cement production job shows a unique advantage. This material has high hardness, good abrasion resistance and heat resistance, corrosion resistance, toughness, and after annealing can be processed such comprehensive performance. 
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