行业动态
发布时间：
2023/08/22 01:50
在纸板被引导成波纹形状之前，波纹辊要被加热。传统瓦楞辊一般采用电加热、油加热、蒸汽加热三种形式，而蒸汽供暖因其成本低、性能好，长期以来被客户广泛接受。它通过将加压蒸汽引入辊的内腔，将热量从内向外传递到辊体。瓦楞辊运行时，原纸不断与瓦楞辊进行热交换，蒸汽放出热量变成冷凝水，储存在辊体内腔。然后冷凝水通过虹吸管不断被蒸汽压力排出，由于其结构特点，必须与瓦楞辊内壁
发布时间：
2023/08/15 20:34
一种加热速度快、热量补充快的周边加热瓦楞辊的相关介绍。目前瓦楞纸板设备中使用的瓦楞辊的加热方式主要是蒸汽，传统的瓦楞辊是中空的圆柱管，其外围是瓦楞辊矩阵，中空部分是类似圆柱体的内部空间。在运行过程中，蒸汽从进气口进入内部空间。在瓦楞辊运行期间，辊表面的热量被纸张带走并冷却，滚筒内部的热蒸汽遇到冷的基板产生冷凝水，冷凝水通过放置在滚筒底部的虹吸管被吸出，并
发布时间：
2023/08/15 20:34
一种加热速度快、热量补充快的周边加热瓦楞辊的相关介绍。目前瓦楞纸板设备中使用的瓦楞辊的加热方式主要是蒸汽，传统的瓦楞辊是中空的圆柱管，其外围是瓦楞辊矩阵，中空部分是类似圆柱体的内部空间。在运行过程中，蒸汽从进气口进入内部空间。在瓦楞辊运行期间，辊表面的热量被纸张带走并冷却，滚筒内部的热蒸汽遇到冷的基板产生冷凝水，冷凝水通过放置在滚筒底部的虹吸管被吸出，并
发布时间：
2023/08/15 20:34
一种加热速度快、热量补充快的周边加热瓦楞辊的相关介绍。目前瓦楞纸板设备中使用的瓦楞辊的加热方式主要是蒸汽，传统的瓦楞辊是中空的圆柱管，其外围是瓦楞辊矩阵，中空部分是类似圆柱体的内部空间。在运行过程中，蒸汽从进气口进入内部空间。在瓦楞辊运行期间，辊表面的热量被纸张带走并冷却，滚筒内部的热蒸汽遇到冷的基板产生冷凝水，冷凝水通过放置在滚筒底部的虹吸管被吸出，并
发布时间：
2023/08/15 20:34
一种加热速度快、热量补充快的周边加热瓦楞辊的相关介绍。目前瓦楞纸板设备中使用的瓦楞辊的加热方式主要是蒸汽，传统的瓦楞辊是中空的圆柱管，其外围是瓦楞辊矩阵，中空部分是类似圆柱体的内部空间。在运行过程中，蒸汽从进气口进入内部空间。在瓦楞辊运行期间，辊表面的热量被纸张带走并冷却，滚筒内部的热蒸汽遇到冷的基板产生冷凝水，冷凝水通过放置在滚筒底部的虹吸管被吸出，并
发布时间：
2023/05/29 11:41
精密设备吊装现场常常存在多个施工单位交叉作业的复杂情况，为确保工程项目正常开展，河南忠伟机电认为必须对相关作业区域实施围蔽，以杜绝发生施工人员或其它无关人员的伤害事故。
商机资讯
Performance requirements for rolling rolls
As is well known, corrugated rollers are the core components of corrugated cardboard production lines, and the correct use and maintenance of corrugated rollers are particularly important. 1. Try to use high-quality corrugated base paper as much as possible. Practice has shown that in digital printing in China, low-cost and low-quality corrugated base paper can exacerbate the wear and tear of corrugated rollers, reducing their service life. 2. Install a limit device to accurately adjust the pressure and gap between the corrugated roller and the pressure roller. In the single-sided machine of the corrugated cardboard production line, when the corrugated peak of the adhesive coated corrugated cardboard is bonded to the surface paper, there needs to be a certain pressure between the corrugated roller and the pressure roller to ensure the bonding effect.
There are various classification methods for rollers, mainly including: (1) strip steel rollers, profile steel rollers, wire rod rollers, etc. according to product types; (2) According to the position of the rolling rolls in the rolling mill series, they are divided into blooming rolls, rough rolling rolls, finishing rolls, etc; (3) According to the roll function, there are scale breaking rolls, piercing rolls, leveling rolls, etc; (4) According to the material of the rollers, they are divided into steel rollers, cast iron rollers, hard alloy rollers, ceramic rollers, etc; (5) According to manufacturing methods, there are casting rolls, forging rolls, surfacing rolls, sleeve rolling rolls, etc; (6) According to the state of the rolled steel, there are hot rolling rolls and cold rolling rolls.
What are the performance requirements for rolling rolls
The main requirements for rough rolling rolls are usually strength and resistance to thermal cracking; The working roll weight of a small 20 high rolling mill is only about 100 grams, while the support roll weight of a wide and thick plate rolling mill has exceeded 200 tons. When selecting rollers, the main material for safe load-bearing capacity (various grades of cast iron, cast steel, or forged steel, etc.) should be selected based on the basic strength requirements of the rolling mill for the rollers.
Correct selection of rollers to meet production requirements
Residual stress and thermal stress may occur during the preparation process before production and use of the roller. During application, it is further subjected to various cyclic stresses, including twists and turns, changes, shear forces, contact stresses, and thermal stresses. The distribution of these stresses along the roll body is uneven and constantly changing, not only due to planning factors, but also to the continuous changes in wear, temperature, and roll shape during the use of the roll.
Why do metallurgical cast steel rollers undergo high-temperature diffusion treatment?
During the solidification of cast steel rollers, the presence of dendritic crystals can cause intergranular segregation of alloy components. This segregation is caused by the inability to achieve sequential solidification of the upper and lower layers, inner and outer layers of the roller body during the solidification process.
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