The surface smoothness of corrugated board is poor, which can be roughly divided into horizontal arch, longitudinal arch and arbitrary arch.

水平拱是指沿波浪方向形成的拱。纵向拱是指纸板沿生产线速度方向形成的拱。任意拱是指在任何方向上起伏的拱。表面起拱称为正拱，表面起拱称为负拱，表面起伏称为正拱和负拱。

Horizontal arch refers to the arch formed along the wave direction. Longitudinal arch refers to the arch formed by the paperboard along the speed direction of the production line. An arbitrary arch is an arch that fluctuates in any direction. Surface arching is called positive arch, surface arching is called negative arch, and surface fluctuation is called positive arch and negative arch.

影响纸板平整度的主要原因

Main factors affecting the flatness of paperboard

1、纸张类型和等级不同。贵阳纸箱包装有进口、国产牛皮纸、仿牛皮纸、瓦楞纸、茶叶板纸、高强瓦楞纸等，也分为A、B、C、D、E、级。由于纸张质量差，所以面纸比衬纸好。

1. Different paper types and grades. Guiyang carton packaging includes imported and domestic kraft paper, imitation kraft paper, corrugated paper, tea board paper, high-strength corrugated paper, etc., which are also divided into grades A, B, C, D, e and E. Because of the poor quality of paper, face paper is better than backing paper.

2、衬纸的主要技术参数不同。考虑到纸箱的性能要求或用户的成本降低，要求纸箱内的纸张不同。通常：

2. The main technical parameters of backing paper are different. Considering the performance requirements of cartons or the cost reduction of users, the paper in cartons is required to be different. Usually:

面粉中有不同数量的纸。面纸比衬纸大，但也小。衬纸的含水量不同。由于供应商和运输库存的湿度不同，面纸的含水量比衬纸高，而且也较小。纸张内部的数量和含水量不同。首先，面纸的数量大于衬纸，含水量大于衬纸或小于衬纸。二是面纸的数量小于衬纸，含水率大于衬纸或小于衬纸。

There are different amounts of paper in the flour. The face paper is larger than the backing paper, but it is also smaller. The moisture content of the backing paper is different. The moisture content of liners is lower than that of liners in transportation, and the moisture content of liners is also higher than that of liners in transportation. The quantity and moisture content inside the paper are different. First, the quantity of face paper is greater than the backing paper, and the water content is greater than or less than the backing paper. Second, the quantity of face paper is less than the backing paper, and the moisture content is greater than or less than the backing paper.

3、同一批纸的含水量不同。一部分纸的含水量高于另一部分纸或贵州纸箱包装的含水量。外缘和内芯含水量不同。

3. The moisture content of the same batch of paper is different. The moisture content of one part of paper is higher than that of another part of paper or Guizhou carton packaging. The water content of outer edge and inner core is different.

4、纸加热器受热面长度不能任意调整。前者操作不当，后者受设备限制，影响预热干燥效果。

4. The length of heating surface of paper heater cannot be adjusted arbitrarily. The former is not operated properly, and the latter is limited by the equipment, which affects the preheating and drying effect.

5、不可能使用蒸汽喷射装置或设备，没有喷雾装置，从而不能任意增加纸张的湿度。

5. It is impossible to use steam ejector or equipment without spraying device, so that humidity of paper can not be increased arbitrarily.

6、预热后，纸张发出的水分时间不足或环境湿度高，通风不良，生产线速度不当。

6. After preheating, the paper emits insufficient moisture time or high environmental humidity, poor ventilation and improper production line speed.

7、纸板的不均匀收缩是由于单面瓦楞机和涂胶机装胶不当、不均匀造成的。

7. The uneven shrinkage of paperboard is caused by improper and uneven glue loading of single-sided corrugating machine and gluing machine.

8、蒸汽压力不足、不稳定、存水弯等零部件损坏、管道内不排水等导致预热器不能正常稳定工作。

8. Insufficient and unstable steam pressure, damage of trap and other parts, and non drainage in the pipeline lead to the failure of the preheater to work normally and stably.

以上就是为大家介绍的有关重型济南纸箱厂的详细介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以专业的态度,为您提供服务http://www.liufangshun.com

The above is the detailed introduction of Jinan Heavy carton factory. I hope it will be helpful to you If you have any questions, please contact us We will provide you with professional service http://www.liufangshun.com