Plastic molding is what to do, how the process?
The plastic molding is various forms (such as powder, granules, solution and dispersion) of plastic products or parts required for the shape of. As many as 30 kinds of molding method.
The choice of plastic molding is mainly determined by the type of plastic (thermoplastic or thermosetting), the starting form, and the shape and size of the product. The commonly used methods for processing thermoplastics are extrusion, injection molding, calendering, blow molding and thermoforming. Thermosetting plastics are generally molded, delivered and molded by injection molding. The plastic molding is various forms (such as powder, granules, solution and dispersion) of plastic products or parts required for the shape of. As many as 30 kinds of molding method. Lamination, molding and thermoforming are the processes of forming plastics on a flat surface. The plastic processing method can be used for rubber processing. In addition, there are liquid monomers or polymers as raw materials such as casting. In these methods, extrusion and injection molding are the most widely used and the most basic molding methods.
The process is divided into four phases:The first stage, plastic injection. When the melt enters the mold cavity, it meets a lower temperature mold wall, forming a thinner solidification layer;The second stage: gas incidence. The inert gas enters the molten plastic, pushing the center of the uncured plastic into the cavity that is not yet filled;The third stage: gas incidence. The gas continues to flow through the plastic melt until the melt fills the mold cavity;The fourth stage: gas pressure maintaining. Under the condition of holding pressure, the air in the air compresses the melt to supplement the material to ensure the appearance quality of the parts.
The plastic molding is various forms (such as powder, granules, solution and dispersion) of plastic products or parts required for the shape of. Simply put, it's the plastic process that produces plastic or plastic parts.
