How the Production of Headphone Outer Cases Works? - Dual Injection Molding Machine

Two-shot injection molding is used in audio equipment to combine two different colors/materials into a single object to improve production efficiency, make the appearance of the product more beautiful, and maintain consistent product quality

Headphones are used frequently. On the way to commute and during exercise, wear headphones in a noisy environment to enjoy the sound you want to hear and immerse yourself in music. Depending on the environment and usage, the survey shows that the average number of headphones owned by a person is about more than 4 pairs.

Headphone form factors can be divided into four categories: circumaural (over-ear), supra-aural (on-ear), earbud, and in-ear for a person to choose the right pair. The behind-the-scenes engineering of earphone production is important. Manufacturing a set of earphones is divided into metal parts and plastic parts. For metal parts, the material processing, cutting, and wire assembly are all steps that rely on CNC processing, The test machine checks the quality. For plastic parts, it starts with selecting the plastic material, different plastic materials have various properties such as lightweight, acid and alkali resistance, high strength, high plasticity, good toughness, and high-temperature resistance according to the product's positioning in the market. Using injection machines and injection molds produces the shape and design of the earphones.

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