Overmolding and 2K Molding
• 2K Molding: Using an injection molding machine with two injection units, sequentially inject two different materials into different cavities of the same mold or the same cavity, completing the molding and bonding of the two materials in a single injection process.
• 2K Molding: The mold generally has two independent cavities or a switchable cavity, as well as two sets of flow channels and gate systems corresponding to the two materials, ensuring that the two materials can be accurately injected into their respective positions.
• 2K Molding: Compatibility of the two materials must also be considered to achieve good bonding. Material selection can be more diverse, including not only plastics with different properties but also the same plastic in different colors to achieve multi-color or multi-material effects in products.
• Can unify the base material and overmolding material in a short time, reducing the time for secondary operations to connect multiple components on the assembly line;
• Makes components more robust and durable, preventing separation over time, and improving overall functionality and appearance;
• Can be used to manufacture products with special requirements such as waterproof connector cables.
• Allows the use of materials with different properties in various parts of the product, such as combining rigid plastics and soft plastics, to enhance product functionality and user experience;
• Enables the integration of multiple components in a single molding process, reducing subsequent assembly steps and lowering costs;
• Creates more aesthetically pleasing products with highly precise boundary lines between the two materials, enabling seamless integration of two colors or different materials.
Application Scenarios
Overmolding finds extensive applications in fields requiring composite material performance or aesthetics:
Core Advantages: Achieves material complementarity (e.g., rigid support + soft functionality) through secondary injection molding, enhancing product durability, comfort, or safety, and is suitable for scenarios with high requirements for composite performance.
The application scenarios of 2K molding are extensive, covering multiple industries:
Core Advantages: Achieves multi-material/multi-color integration through one-step molding, enhancing functionality (e.g., anti-slip, shock absorption, sealing) and design flexibility for appearances, reducing assembly processes, and being suitable for mass production.