Advanced modelling for understanding and replicating edge-curl in paper machine clothing

奥尔巴尼国际是全球最重要的造纸机针布（PMC）供应商。PMC网布和网带在造纸过程中纸张的形成和运输中发挥着核心作用，将水基纤维素浆料转化为纸张（珀斯ON，160名员工）。PMC织物和皮带是技术先进的消耗品，由聚合物单丝编织成各种结构的多层织物。PMC生产有良好的文件记录和广泛的控制。通过定期的现场服务访问密切跟踪造纸时的皮带性能。该项目针对的实际问题是边缘卷曲，即PMC带的边缘弯曲，通常向上，作为机械和热负荷以及时间流逝的函数。边缘卷曲是造纸中的严重问题。奥尔巴尼的最终目标是通过量化控制卷曲的因素来消除卷曲。该项目旨在通过在数值模拟中复制测得的卷曲来提供长期价值，并在此过程中量化材料和工艺参数的影响以及造纸前PMC的热机械历史。奥尔巴尼拥有出色的生产和实验能力，旨在为加拿大的PMC开发预测建模活动;本提案是实现这一目标的第一步。

Albany International is the foremost global supplier of paper machine clothing (PMC). PMC fabrics and belts play a central role in the formation and transport of the paper sheet in papermaking, transforming water-based cellulose slurry into paper (Perth ON, 160 employees). PMC fabrics and belts are technologically sophisticated consumables made of polymer monofilaments woven into multilayer fabrics of varied constructions. PMC manufacturing is well-documented and controlled extensively. Belt performance upon papermaking is followed closely through regular field service visits. The practical issue targeted in this project is edge curl whereby the edges of the PMC belt curve, typically upwards, as a function of mechanical and thermal loading and time lapsed. Edge curl is a serious issue in papermaking. Albany's final goal is to remove edge curl by quantifying what controls it. The project aims at providing long-term value by replicating measured edge curl in numerical simulations and in so doing, quantifying the effect of material and process parameters and of the thermo-mechanical history of the PMC prior to papermaking. Albany has excellent production and experimental capabilities and aims at developing a predictive modelling activity for PMC in Canada; this proposal is a first step towards that aim.