Those who have known about the calender should know that the calender has a data called speed ratio, but what is the use of speed, which will affect the place in the production process, I believe many friends do not know very well, today Dongfu came to Briefly introduce the knowledge of calender speed ratio for everyone, I hope it will be helpful to you
Common speed ratio
1. In order to eliminate air bubbles in the rubber material, the feed rollers generally have a speed ratio, often 1: 1.1 to 1: 1.5. In China, 1: 1.1 to 1: 1.4 are commonly used. Take a small value for soft rubber. 2. For the rubber-rubbing operation, in order for the rubber to penetrate into the textile, the rubber-rubber roller requires a speed ratio. The larger the speed ratio, the greater the shearing force, and the better the rubber-rubber effect, but the excessive speed ratio will damage the strength of the textile and easily scorch the rubber. When the speed ratio is too small, the penetration of the rubber is poor. Generally, 1: 1.2 ~ 1: 1.5 is used, and China mostly adopts 1: 1.4 ~ 1: 1.5. 3. For the operations of tabletting, laminating, and gluing, etc., the main reason is to obtain the squeezing force, so constant speed rolling is generally used, and the speed ratio is 1: 1. 4.Factors to consider when choosing a roll speed The roller speed directly affects the power consumption and production capacity of the calender. The higher the roll speed, the higher the power and output, and the higher the level of mechanization and automation requirements of the calender. Therefore, when choosing the roll speed, consider: 1. Process requirements for rolling production; 2. Manufacturing level and quality of calender; 3. The automation level of the rolling unit. 4. Whether the production is stable; The height of the roll speed marks the advanced level of the rolling unit. 可在一台压延机上完成多种作业，这就使机台的适应性更加宽广，我司定制各类精密压延机设备，PLC人机界面让操作更简单，独立速比调节装备、一体化机身让您生产更稳定，精密组合设计，确保产品精度。 The free adjustment of the speed ratio can complete a variety of tasks on one calender, which makes the machine more adaptable. Our company customizes various types of precision calender equipment, and the PLC man-machine interface makes operation easier and independent speed ratio adjustment Equipped with an integrated body, your production is more stable, and the precise combination design ensures product accuracy.