Plastic mold manufacturing mainly includes concave molds with variable cavities consisting of concave mold combination base plate, concave mold assembly and concave mold combination cardboard, and convex molds with variable cores consisting of convex mold combination base plate, convex mold assembly, convex mold combination cardboard, cavity truncation assembly, and side truncation combination plate. Mold convex and concave molds and auxiliary molding systems for coordinated change. Plastic mold manufacturing can process different shapes and sizes of the series of plastic parts.
In order to improve the performance of plastic, but also in the polymer to add a variety of auxiliary materials, such as fillers, plasticizers, lubricants, stabilizers, coloring agents, etc.,
1, synthetic resin is the most important component of plastic, and its content in plastic is generally 40% to 100%. Because of the large content, and the nature of the resin also determines the nature of the plastic, so people often see the resin as a synonym for plastic. For example, Let PVC resins and PVC plastics, phenolic resins and phenolic plastics be treated as generic terms. In fact, resin and plastic are two different concepts. Resin is a raw unprocessed polymer, which is not only used in the manufacture of plastics, but also coatings, adhesives and synthetic fibers raw materials. In addition to a very small portion of plastics containing 100% resin, the vast majority of plastics, in addition to the main component resin, but also need to add other substances.
2, filler, it can improve the strength and heat resistance of plastic, and reduce costs. For example, phenolic resin can greatly reduce the cost of adding wood flour, so that phenolic plastics become one of the cheapest plastics, but also significantly improve mechanical strength. Fillers can be divided into two categories of organic fillers and inorganic fillers, the former, such as wood flour, rags, paper and a variety of fabric fibers, etc., the latter, such as glass fibers, diatomaceous earth, asbestos, carbon black, etc.. In the blow molding process, there are many factors that can affect product quality. If no attention is paid, the quality of the product may be affected, but if these factors can be controlled, the production results will be formed to meet the requirements of the product specifications. Therefore, detail processing is particularly important.
