The Efforts of Mining Maker on Product Improving
11 January, 2013 at 7:14 am in Business
China’s current scrap recycling rate is 19.9%, which is far below the world average of 48.3%. Foreign scrap processing industry rely on scrap breaking and sorting processing as a leader, research and develop a new technology which integrating high-tech of environmental protection, mechanical and electrical to make it a new economic growth point.
At present, our country mainly adopts high manganese steel flat hammer and impact plate. Because different manufacturer adopt different heat treatment and material, the life expectancies are also equally intervallic. Our country also researched use dilute alloy white cast iron or of high chromium iron manufacture impact hammer for its high hardness, good wearing-resistance, convenient production, low cost, which achieved good results. There are a number of manufacturers adopt surfacing welding layer method by welding' – 64' or ' – 64A' electrode or high fierce steel electrode it can not only improve the wear-resistance and service life, but also repair old plate hammer or impact plate. Plate hammer shape and fixing method are very important in repairing process, besides convenient dismounting, plate hammer shape also should improve the utilization rate of the metal. Plate hammer quality should be accurate for whose error should be limited within 0.5kg, in order to ensure the smooth running of the machine rotates. In addition, the rotor cannot rotate 1 / 10 of the circumference at any state in rotor static balance experiment.
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