Recently, the editor has been busy with work and has not updated any website articles for a long time. Today, I took some time from my busy schedule to introduce the selection of commonly used plastic materials for plastic molds. For colleagues who have product development needs, you can learn more.

1. ABS: High fluidity, inexpensive, suitable for components with low strength requirements (not directly impacted, not withstanding structural durability in reliability testing), such as internal support brackets (keyboard brackets, LCD brackets). Also commonly used on electroplated components (such as buttons, side keys, navigation keys, electroplated decorative parts, etc.). Currently, Qimei PA-757, PA-777D, etc. are commonly used.

2. PC+ABS: Good liquidity, good strength, and moderate price. Suitable for making parts with high rigidity and high impact toughness, such as frames, shells, etc. Common material codes: Bayer T85, T65.

3. PC: High strength, expensive, and poor liquidity. Suitable for shells, buttons, transmission frames, lenses, etc. that require high strength. Common material codes such as: Emperor L1250Y, PC2405, PC2605.

4. POM has high rigidity and hardness, excellent fatigue resistance and wear resistance, small creep and water absorption, good dimensional stability and chemical stability, good insulation, etc. Commonly used for pulleys, transmission gears, worm gears, worm gears, transmission mechanism components, etc., commonly used material codes such as M90-44.

5. PA is tough and absorbent, but becomes fragile when the water completely evaporates. Commonly used for gears, pulleys, etc. Key gears with significant impact force require the addition of fillers. The material code is CM3003G-30.

6. PMMA has excellent transparency, and can still pass through 92% of the sunlight after 240 hours of accelerated aging of light. It still has 89% of the sunlight outside for ten years, and the ultraviolet radiation reaches 78.5%. High mechanical strength, with a certain degree of cold resistance and corrosion resistance, good insulation performance, stable size, easy to shape, and brittle texture, commonly used in transparent structural components with certain strength requirements, such as lenses, remote control windows, light guides, etc. Common material codes such as Mitsubishi VH001.