2015年3月22日星期日

Design and Material Selection of Jaw Crusher Machine

 jaw crusher
At design time, moving jaw and fixed plate of jaw crusher machine should be of teeth the tooth valley.So, the broken besides squeezing effects for the material, when there are bending effect, the material is easy to broken.
In order to enhance the service life of the crusher plate, small and medium-sized crusher crusher plate into the shape of a symmetrical design, when the lower wear adjustable head after use;Large jaw crusher fo sale crushing plate pieces that are designed to be symmetrical each other, so that the wear after crushing plate switch can be used.
Crusher plate materials can choose white cast iron.White cast iron larger hardness, good wear resistance, easy source, low price;The disadvantage is that brittle and easily broken, short service life.In order to improve the service life of the crusher crawler type mobile crusher plate, material better by more than 12% of manganese content in manganese steel, commonly used.Although manganese steel has good toughness, hardness is not high, however, because has the characteristics of cold hardening, the stress under the action of will continue to be strengthened, and therefore, in the work wear and strengthen continuously, until the wear cannot be used to scrap.
Manganese steel after aggregate crusher for sale plate casting through water toughening treatment, the operation of water toughening treatment generally the same as the quenching, namely the manganese steel casting out crusher plate heated to 1 000 ~ 1 000 ℃ after rapid cooling in the water.After water toughening treatment can get a homogeneous microstructure, and fixed the microstructure, primary stone crusher avoided in use natural phase change and make the performance becomes poor.The disadvantage of manganese steel is more expensive, but from the overall consideration, service life and cost ZGMn13 than white cast iron long service life, low cost.

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