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彩涂卷支承和变形研究

返回列表 来源: 发布日期: 2020.04.15

彩涂卷支承和变形研究

天物彩板专注彩板行业16年——通辽市彩钢板厂_平面彩钢板是多少宽请拨打网站上方电话咨询

彩涂钢板的产品质量不仅取决于钢板和建筑涂料的基本特性,还取决于生产工艺和实际操作控制系统。控制系统的实际运行对彩涂产品的工艺性能有很大的负面影响。从生产过程分析,生产制造控制系统的重中之重应包括四个阶段:清洗液、化学镀液、喷涂和干固。现在让我们来了解下彩涂辊的支撑与变形研究。

彩涂退卷过程中线圈的热应力计算是以线圈作为薄壁或可锻管的微分方程计算为基础的。实际上,彩涂辊通常很薄很厚,彩涂辊沿圆周具有显著的非圆特性。按圆曲线求解彩色涂布辊,计算误差很大。因此,在热浸镀彩涂和退绕的整个过程中,较明显的是薄厚提升卷钢内带沿圆周方向是非圆的,而以往的环向对称的封闭圆桶型实体模型不仅与实际情况有较大误差带钢在卷取过程中,也不能准确地划分折叠层之间的滑移,并根据卷取过程的特点,将机械、设备和工艺充分结合在一起,采用螺旋开口筒式卷取方法,充分考虑了放卷过程中沿圆周方向的地应力和变形不均匀分布,未充分考虑线圈头环和钢丝绳卷筒未完全接触的迹象。明确提出了一套适用于热扎彩钢卷退绕的地应力分布实体模型,得出了相应的层间滑移分辨率标准,并定制了相移预测手机软件,应用于生产实践。
在整个放卷过程中,卷径增大。对于一层彩钢卷,轴向工作压力增大。对于彩钢卷的内层,也就是领头羊的头部被抬高,特别是在一个相对较大的水平上,使层与层之间的粘合概率继续上升。但是,对于卸卷,轴向工作压力从内到外从上到下降低。但由于环向地应力的规律性不同,所以在卷钢内部某一层产生最小值。随着工作压力的增加,彩涂线圈头部顶部的环向地应力减小。钢卷中间的一些层大大减少了。如果原放卷支撑力较大,则会出现负数。

The product quality of color coated steel sheet is not only based on the basic characteristics of plate and architectural coating, but also on the production process and practical operation control system. The actual operation of the control system has a great negative impact on the technological performance of the color coated products. From the production process analysis, the top priority of the production and manufacturing control system should include four stages: cleaning solution, chemical coating solution, spraying and dry fixation. Now let's understand the study of the support and deformation of the lower color coating roll.

The calculation of the thermal stress of the coil in the process of color coating and unwinding is based on the calculation of the differential equation of the coil as a thin-walled or malleable tube. In fact, the color coated roll is usually very thin and thick, and the color coated roll has significant non-circular characteristics along the circumference. If the color coated roll is solved according to the circular curve, the calculation error will be very large. Therefore, in the whole process of hot-dip color coating and unwinding, it is more obvious that the thin and thick lifting coil steel internal strip is non-circular along the circumferential direction, while in the past, the closed circular bucket type entity model of circumferential symmetry not only has a large error with the actual situation of the strip, but also can't accurately divide the slip between the folding layers, and fully integrate the machinery, equipment and processing in the whole process of hot-rolled coiling According to the characteristics of the process, the spiral open mouth barrel type method is selected, and the uneven distribution of the in-situ stress and deformation along the circumference in the whole process of unwinding is fully considered, and the sign that the coil head ring and the wire rope drum are not completely touched is not fully considered. A set of in-situ stress distribution entity model suitable for the hot tie color coil unwinding is clearly proposed, the relative interlayer slip resolution standard is obtained, and the phase is customized The mobile phone software for forecasting in-situ stress and interlayer slip in coil steel is applied to production practice.
In the whole process of unwinding, the coil diameter is enlarged. For a layer of color steel coil, the axial working pressure is expanded. For the inner layer of color steel coil, that is, the leader's head is raised, especially at a relatively large level, so that the probability of adhesion between layers will continue to rise. However, for the coil unloading, the axial working pressure is reduced from inside to outside from top to bottom. But for the regularity of the hoop in-situ stress is different, so the minimum value is generated in a certain layer inside the coil steel. The hoop in-situ stress at the top of the color coated coil head is reduced with the increase of its working pressure. Some layers in the middle of the coil steel are reduced greatly. If the original unwinding support force is large, there will be a negative number.
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