The manufacturing process of seamless PVC baseball involves multiple delicate steps. The following is a detailed description of its manufacturing process:
Raw material preparation
Seamless PVC baseball usually uses PVC material as the main raw material. This material has the characteristics of being lightweight, durable and having a relatively low cost. During the manufacturing process, in addition to PVC materials, some auxiliary materials such as adhesives and fillers may also be needed to ensure the shape, elasticity and durability of the baseball.
Production process flow
Forming process:
The PVC material is heated and softened by using a mold, and then formed into the shape of a baseball through pressure or vacuum adsorption. During this process, temperature, pressure and time need to be strictly controlled to ensure that the size and shape of the baseball meet the standards.
Surface treatment:
The surface of the formed baseball may need to be ground, polished and other treatments to remove burrs and uneven parts, making the surface smoother.
It may also be necessary to apply a protective film or coating on the surface of the baseball to enhance its wear resistance, anti-aging property and water resistance.
Filling and Sealing
For seamless PVC baseball, the interior may not need to be filled with traditional materials such as cork or rubber, but to ensure the elasticity and durability of the baseball, some special fillers or gases may be injected inside.
After the filling is completed, the baseball needs to be sealed to prevent the leakage of the filling or the entry of external substances.
Quality inspection
After the production is completed, the baseball needs to undergo strict quality inspection. The inspection contents include multiple aspects such as size, weight, shape, elasticity and durability. Only baseball that has passed the quality inspection can enter the market for sale.
Precautions
Material quality: During the manufacturing process, it is necessary to strictly control the quality of PVC materials and other auxiliary materials to ensure the quality of the final product.
Process control: Every process link such as forming, surface treatment, filling and sealing needs to strictly control parameters and operation norms to ensure the quality and consistency of the baseball.
Safety and environmental protection: During the production process, attention should be paid to safety and environmental protection issues. For example, use adhesives and fillers that meet environmental protection standards to avoid the generation of harmful substances and waste.