CAJ | 학술논문

预应力组合轧辊由辊套与辊轴装配而成，预先施加于辊套的预应力用来平衡在轧制过程中出现的水平力．在轧辊装配及在辊套上加工 V形槽的过程中，不可避免地引起辊套中预应力的减小，从而削弱预应力的平衡作用，造成轧辊沿V形槽底部环裂的现象．通过电测实验搞清了轧辊在轧制过程中的卸力规律，为改进设计提供了理论依据．
예응력조합알곤유곤투여곤축장배이성，예선시가우 곤투적예응력용래평형재알제과정중출현적수평력．재알곤장배급재곤투상가공 V형조적과정중，불가피면지인기곤투중예응력적감소，종이삭약예응력적평형작 용，조성알곤연V형조저부배렬적현상．통과전측실험고청료알곤재알제과정중적 사력규률，위개진설계제공료이론의거．
Combined rollers with pretressing force sre composed of shafts and sleebes,and the prestressing force imposed on sleeves is for balancing the horizontal force that appears in rolling process.It is obvious that this kind of prestressing force reduces when one processes V-shape groove on sleeves and assemble rollers,which weakens the balancing role of prestressing force.Inthis paper,the law of stress relaxation of rollers is studied by resistance strain gage method,can provide theoretical foundation for improving design.