subject: How To Shorten The Gap With Advanced Level Crusher [print this page] How to shorten the gap with advanced level crusher
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.
In the context that the slowdown of domestic demand becomes the main constraints of the industry running, the imports are still large, and the import growth is still so strong, which only shows that the domestic supply is still not meet the various needs. Through the foreign trade surplus of China machinery industry achieved $12.4 billion in 2011; the surplus is mainly due to the low-end processing trade in the industrial chain. The competitiveness of our country is mainly embodied in the cost-effective advantages of low-end products. There is still a huge gap with the world advanced level.
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