Principle of Multi-roller Straightening Process and Quantitative Resolutions of Straightening Strategies
Principle of Multi-roller Straightening Process and Quantitative Resolutions of Straightening Strategies
复制标题
多辊矫直工艺原理及矫直策略的定量解析
DOI:
10.1016/s1006-706x(14)60148-5
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发表时间:
2014-09
影响因子:
2.5
通讯作者:
Li, Yue-lin
中科院分区:
文献类型:
--
作者:
Zhao, Jun;Wang, Shi-yan;Wan, Xian-song;Li, Yue-lin
The multi-roller straightening process of section steel is analyzed by the springback theory of small curvature plane bending. The theoretical analysis results prove the curvature unification in straightening process and clearly reveal the principle of the multi-roller straightening process. The principle can be described as: the initial curvatures are reduced by several times anti-bending; meanwhile the initial curvature differences are diminished and the residual curvatures are unified; finally, the member after curvature unification is straightened by the last anti-bending. With the plastic region ratios becoming larger, the initial curvatures are more easily unified in straightening process. Based on the plastic region ratios and the required number of roller systems for unifying the initial curvatures, the large deformation straightening strategy and the small deformation straightening strategy are redefined. The new definition provides an important theoretical basis for setting reliable reduction rules. Through the theoretical analysis results, a new straightener design philosophy is proposed to improve the straightening quality and further increase the adjustment precision as well as the flexibility of the last roller system. The adjustable end roller emerges as the times required, achieving a good effect in practical application.
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影响因子:
4.1
作者:
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通讯作者:
R. Spoorenberg;H. Snijder;J. Hoenderkamp
影响因子:
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