What are the methods for judging the quality of semi-finished products of opening machine materials?

In order to further improve the opening quality and yarn quality of fiber raw materials, the main development direction of opening technology is to improve the form and structure of opening parts, widely use straight rollers, needle machines or needle rollers. Combing machine parts, improve the opening of fiber blocks, improve the structure and uniformity of semi-finished products; strengthen the pre-opening of fiber raw materials. In this article, we, the manufacturer of opening machines, will interpret the judgment of the quality of semi-finished products for everyone! 1. The type and number of impurities and cracks in the semi-finished products. 2. The structure and uniformity of the semi-finished products. 3. The content of short fibers in the semi-finished products. 4. The opening of the fiber block is expressed by the average weight of the fiber block (g/block), the weight per unit volume (kg/m3), or the terminal velocity of the fiber block settling freely in the air. 5. The right amount of spinnable fiber.