ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
According to revised Cailikefu’s rolling shear force formula, motion path equation ofspatial seven-bar path is built, and mechanical model, with such new structural features as asymmetricand negative offset, is thus successfully established for 2800 mm heavy shear of some Iron&SteelCompany. Shear force and bar force of steel plate, before and after adoption of asymmetric andnegative offset structure, are analyzed, as well as horizontal force component of mechanism thatinfluences pure rolling shear and back-wall push force that keeps blade clearance. The discovery isthat back-wall push force could be kept large enough at rolling start-up (i.e. the time that themaximum rolling shear produces), meanwhile, back-wall push force is the most approximate to sideforces with adoption of 60mm~100mm offset. Theoretical results and on-site shear quality bothindicate that new structural features such as asymmetric and negative offset plays an important role inensuring pure rolling shear and keeping blade clearance constant, which provide an effective means toimprove quality of steel plate
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.375-376.700.pdf
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