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hos——距带钢边部操作侧40mm处测厚��A��得的厚度。甶实际轧制�q�程中，板型凸度可能产生楔�Ş�Q�一般来��_��凸度大于40pm�Ӟ��wq应小�?凸度��二�Ӟ��Wq应小�?7pm。钢板凸度的形成机理是什么。FL制过�E�中带钢的凸度取决于负蝲下的轧辊的凸度、金属的梦钢原始板型的凸度，轧机的辊�~��Ş状�Ş成了带钢的出型。辊的空载凸度蝾辊原始辊型屮轧辊热态凸�?轧银��损辊的负蝲凸度=轧辊�I��凸度轧辊挠度十蝾辊弹性变形以上因素决定了轧机的辊�~��Ş�Ӟ��构成了数学模型的�?口控制因素。通过指定原始辊电制度�Q�控制弯辊和串银来改凸度和��^直度�Q��带钢辚w��和中部的延��保持相同从而获相型。对于热轧板凸度的控制公差一般没有明��的规定�Q�对凸埴三要是�ؓ保证后箋冯��的要求。冷轧对来料热蝾板的凸度公差邑求��于0. 007mmo�?<br /> 螺旋钢管厂钢板板形指钢板横向断面厚度分布的均匀度和杉K��的��^一般认为，板�Ş不良是由于板宽方向上各点的纵向�g�怸�均句。严格地��_��板�Ş是蝾后带钢中�D�余应力所造成的。可以l~J从辊�~�中轧出的蝾件因其前端还比较自由�Q�因而在宽度力均匀变�Ş��有可能在其前端的�Ş状上反映出来�Q�但乳�g长后�Q��l�蝾出的札�g�Q�这�U�不均匀延��的前端的�ȝ��而不�?桑反映在前端的�Ş状上�Q�从而��生了沿宽度方向上的纵向拉爸种拉应力就是蝾件变形后的残余应力，此应力��够大�Ӟ��伟�Ş表现为�L��、翘曲等�~�陷�?/p></div> <div style="text-align:left; width:100%; height:40px; line-height:40px; background:#f00; display:block; margin:0 auto; margin-top:30px;">上一��：<a href='/news/114.html'>焊接钢管与焊接螺旋钢��的区别在哪�?/a></div> <div style="text-align:left; width:100%; height:40px; line-height:40px; background:#f00; display:block; margin:0 auto; 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