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how to improve the service life of the sprocket?
- Dec 04, 2018 -

Scraper Sprocket couldn’t meet the requirements of production practice lake of short service life of the sprocket.

SF heavy machinery give some suggestions about Improvement measures according to the use condition,the manufacturing technology and the processing status of the sprocket:

(1)The original scraper conveyor design overall Q&T hardness is HB220~250,tooth quenching HRC48~52,material is 40Cr.This method couldn't improve the wear resistance of the scraper conveyor,because lack of hardness of the Tough quenching.

20CrMnTi The hardness of the chain socket can reach above HRC60 after carburizing and quenching treatment. wear resistance is 2.5 times that of 40Cr material.

(2)The shape of the original scraper conveyor is directly formed by forging, large dimensional error,reduce the wear resistance,rough surface.With the wide application of CNC machine tools,it is recommended that leave a little margin after forging,and finish milling by digital milling to improve surface roughness and the dimensional accuracy to improve the wear resistance.