Results 11 to 20 of about 1,087,452 (200)

Brane-world inflation: slow-roll corrections to the spectral index [PDF]

open access: yes, 2007
We quantify the slow-roll corrections to primordial density perturbations arising from inflation driven by a four-dimensional scalar field with a monomial potential in a five-dimensional non-compact bulk spacetime.
Andrew Mennim   +4 more
core   +3 more sources

Work roll shifting method by optimum calculation of work roll profile in hot strip rolling

open access: yesProcedia Engineering, 2017
Abstract In hot strip rolling, the work roll shifting method has been widely used to disperse thermal crown and wear of the work rolls in the axial direction. This paper provides a strategic control method for the work roll profile which surpasses the conventional work roll shifting method.
Shinya Yamaguchi   +3 more
openaire   +1 more source

Microstructure control during twin roll casting of an AZ31 magnesium alloy [PDF]

open access: yes, 2012
The existing twin roll casting technique for magnesium alloys suffers heterogeneity in both microstructure and chemistry and downstream processing is required to improve the strip quality, resulting in cost rise.
Ferry M, I Bayandorian, Y Huang, Z Fan
core   +1 more source

Residual Stress Differences between Uniform and Non-Uniform Heating Treatment of Bimetallic Roll: Effect of Creep Behavior on Residual Stress

open access: yesMetals, 2018
The work roll is one of the most important tools in the steel rolling industry. Work rolls are used under extremely severe conditions such as high temperature, high loading, and an aggressive atmosphere.
Nao-Aki Noda   +4 more
doaj   +1 more source

Theoretical Analysis of Rolling Force during Cold Rolling with Roll Crossing and Shifting System

open access: yesJournal of Manufacturing and Materials Processing, 2023
A precise prediction of the rolling force is critical to ensure the quality of the final product, especially in the cold rolling of thin strips. Based on this, a new mathematical model is developed to work out the rolling force when considering the roll ...
Abdulrahman Aljabri   +5 more
doaj   +1 more source

Active vibration suppression for rolling mills vibration based on extended state observer and parameter identification

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2020
Rolling mills vibration is a key factor that hinders the production of thin-strip steel. Currently, vibration is mainly suppressed by adjusting rolling mill parameters which is not a common approach.
Xinxin Wang, Xiaoqiang Yan
doaj   +1 more source

Silicon Steel Strip Profile Control Technology for Six-High Cold Rolling Mill with Small Work Roll Radius

open access: yesMetals, 2020
Due to the requirement of magnetic properties of silicon steel sheets, producing high-precision size strips is the main aim of the cold rolling industry.
Hainan He   +4 more
doaj   +1 more source

Research on Load on the Roll Press’ Shafts and Work Items [PDF]

open access: yesMATEC Web of Conferences, 2022
The results of a method used in evaluating the load on roll press’ shafts used in briquetting fine-grained materials are presented. The research was conducted in the Manufacturing Systems Department at AGH University of Science and Technology in Kraków ...
Kosturkiewicz Bogdan   +2 more
doaj   +1 more source

Shape-control characteristics of six-high mill with roll offset

open access: yes工程科学学报, 2017
To improve the stability of the six-high cold rolling mill, the roll offset method is often used. This paper uses ABAQUS finite element software to establish the rolls-strip coupling model.
ZHENG Jian   +5 more
doaj   +1 more source

Influence of initial heeling angle on ship roll motion response

open access: yesZhongguo Jianchuan Yanjiu, 2022
Objectives In this work, the influence of the initial heeling angle on the roll motion response of a ship in random beam wave is studied. MethodsSpecifically, the path integration method is applied to solve the Fokker-Planck equation, which governs the ...
Zewen ZHANG   +4 more
doaj   +1 more source

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