In the production process of corrugated cardboard, controlling its thickness is a crucial link, which is directly related to the quality and performance of the product. The following are some key measures to ensure precise control of the thickness of Corrugated cardboard:
First of all, the thickness of Corrugated cardboard depends on the "innate" condition of the corrugating roller tooth depth. Once corrugated is formed, its thickness cannot be increased. Therefore, ensuring the accuracy and consistency of corrugating roller teeth is a top priority. Before the operation of the corrugated cardboard machine, the corrugated rollers should be comprehensively inspected to ensure that there are no foreign objects on the surface and are evenly worn, and the pressure between the rollers should be adjusted to ensure the complete formation of corrugated corrugations.
Secondly, the thickness of Corrugated cardboard is also affected by the temperature of the core paper and the amount of water during rolling. Corrugated paper needs to reach certain temperature conditions during the rolling process to ensure its good formability. For this reason, during the production process, corrugated paper should be preheated, and if necessary, the vehicle speed should be reduced to increase the rolling temperature of corrugated paper. At the same time, it is also crucial to control the moisture content of corrugated paper. Paper that is too wet or too dry will affect the thickness and molding effect of corrugated cardboard. Therefore, the moisture content should be adjusted to an appropriate range according to the actual conditions of the paper by injecting low-pressure and high-temperature steam.
In addition, the control of the spacing, depth, width and shape of corrugated paper during the paper core preparation process is also a key factor affecting the thickness of Corrugated cardboard. The reasonable design of these parameters will directly affect the thickness and compressive strength of Corrugated cardboard. Therefore, during the production process, these parameters should be strictly controlled to ensure the precise preparation of the corrugated core.
Finally, the selection and amount of adhesive used during the assembly process of Corrugated cardboard is also one of the factors that affects the thickness. Higher binder usage increases the thickness and compressive strength of the board, but may also affect the flexibility and processability of the board. Therefore, during the combination process, the adhesive type and dosage should be reasonably selected according to product needs and process requirements to ensure the quality and performance of the cardboard.
To sum up, the process of controlling the thickness of corrugated cardboard requires comprehensive consideration of multiple factors, including the accuracy of the corrugating roller teeth, the temperature and water volume of the paper, the paper core preparation parameters, and the selection and usage of the adhesive. Through fine process control and strict quality management, the accuracy and consistency of the thickness of Corrugated cardboard can be ensured, thereby meeting market demand and improving product quality.
