Overmolding Molded Parts
Our Overmolding Molded Parts have significant composite performance advantages. Two or more materials with different characteristics, such as hard plastic and soft rubber, are successively injected into the same mold to achieve the integrated design of function and appearance. This technology can not only enhance the durability and comfort of components, such as adding a soft rubber layer to the tool handle to improve the grip feel; It can also simplify the assembly process, reduce the number of parts and manual operations, lower production costs while improving production efficiency. Moreover, we can achieve complex structural designs, creating unique combinations of appearance and functionality that traditional injection molding cannot achieve.
Material selection for over molding molded parts
In terms of material selection, we have a rich and flexible combination plan. Basic hard materials are usually selected from polycarbonate (PC), acrylonitrile butadiene styrene copolymer (ABS), etc., which have high strength, good rigidity, and dimensional stability; Soft materials are commonly found in thermoplastic elastomers (TPE) and silicone rubber, which can provide a soft touch, wear resistance, and waterproof sealing performance. For special application scenarios, we can also choose materials with special properties such as conductivity, flame retardancy, and antibacterial properties. Through scientific material combinations, we can meet the diverse needs of different products in mechanics, chemistry, electrical, and other aspects.
Overmolding Molded Parts Production Process
Our production process is rigorous and efficient. Firstly, when designing the mold, it is necessary to fully consider the compatibility and molding sequence of two or more materials, and design a precision mold with multiple cavities and pouring systems. Next is the first injection molding, where the basic hard material is injected into the mold cavity, cooled and solidified to form the basic skeleton of the component. Subsequently, the mold automatically adjusts, and the second injection molding covers the hard parts with soft or other functional materials. By precisely controlling the temperature, pressure, and injection time, the two materials are tightly combined. Finally, after demolding and necessary post-processing steps such as removing burrs and cleaning, the complete secondary injection molded parts are obtained.
Surface treatment of overmolding molded parts
We offer a variety of surface treatment processes to further enhance the performance and appearance of Overmolding Molded Parts. For hard parts, high gloss treatment, texture processing, anodizing and other methods can be used to create a mirror, frosted or metal like surface texture; For soft parts, surface coating, printing, laser engraving and other technologies are used to increase identification clarity, stain resistance or unique decorative effects. In addition, we can also carry out overall anti ultraviolet and anti-aging treatment to extend the service life of components in outdoor or harsh environments.
Overmolding Molded Parts Dimensional Inspection
We attach great importance to the dimension inspection process and use advanced measurement technology to ensure product accuracy. Using high-precision coordinate measuring instruments, laser scanners, and other equipment, conduct comprehensive inspections of the overall dimensions of components and the transition dimensions of various material bonding parts. At the same time, using image measuring instruments to perform microscopic size analysis on complex surfaces and small details. In the production process, we implement multi-stage testing, from first piece inspection during mold debugging to sampling and full inspection during batch production. Once size deviations are found, we immediately adjust mold parameters, optimize injection molding processes, and other measures to correct them, ensuring the consistency and accuracy of product dimensions.
Application of over molding molded parts products
Our Overmolding Molded Parts are widely used in multiple fields. In the field of consumer electronics, it is commonly used for the casing and buttons of mobile phones and headphones, providing a comfortable grip and waterproof and dustproof performance; In the automotive industry, it is applied to components such as steering wheels and shift levers to enhance handling comfort and safety; In terms of medical devices, it is used for surgical instrument handles and medical catheter connectors, meeting the requirements of sterility, anti slip, and biocompatibility; In addition, in products such as tools, toys, and sports equipment, the perfect combination of functionality and aesthetics can also be achieved through secondary injection molding technology, providing customers with high-quality customized solutions.
