In keyboard production, the quality of the keycap mould directly affects the final product's appearance, durability, and feel. Therefore, choosing the right material for manufacturing keycap moulds is crucial. Different materials can impact the mould's precision, service life, and production efficiency. This article focuses on the selection of keycap mould materials and which materials are more suitable for high-performance keycap production.
Steel is the most commonly used material for keycap moulds, especially in large-scale production scenarios. During the use of keycap moulds, they frequently come into contact with plastic, which can cause wear on the mould's surface. Steel, due to its excellent hardness and wear resistance, can effectively extend the mould's service life. Commonly used steel materials include alloy steel and tool steel, which maintain high hardness and durability after processing, making them suitable for high-frequency production.
Compared to steel, aluminium alloy is lighter and has better machinability. For keycap moulds with smaller production volumes or less stringent precision requirements, aluminium alloy is a good choice. Although its wear resistance and hardness are not as high as steel, aluminium alloy has good thermal conductivity, which helps maintain mould stability during high-frequency production. Additionally, aluminium alloy is easy to surface treat, which can effectively enhance the mould's corrosion resistance.
Titanium alloy, due to its outstanding strength and corrosion resistance, has gradually gained attention in keycap mould manufacturing. Although titanium alloy is more expensive, it is very suitable for keycap moulds that require higher strength and precision. Titanium alloy has high hardness, allowing it to resist the pressure and wear generated during production, making it especially suitable for producing high-precision, high-strength moulds.
For small batch, high-precision production needs, plastic moulds are also a common choice. Although plastic moulds are not as durable or hard as metal moulds, their light weight and lower production cost make them suitable for rapid prototyping or small batch production. Plastic moulds are cost-effective for those looking to quickly test or customize a small number of keycaps.
When selecting materials for keycap moulds, it is essential to consider not only the material itself but also the surface treatment of the mould. Even when using materials like steel or aluminium alloy, treatments such as electroplating, nitriding, and coating are necessary to enhance surface hardness, reduce wear, and extend the mould's service life. Fine surface treatments not only improve the mould's durability but also enhance the quality of keycap production, ensuring the appearance of the keycaps is refined and smooth.
Different production requirements determine the choice of materials. For large-scale production, steel and aluminium alloy are typically the preferred choices due to their long service life and low maintenance costs. For small batch, highly customized production, plastic moulds or magnesium alloy may offer better cost-effectiveness. When selecting keycap mould materials, it is important to comprehensively consider the production volume, product requirements, and the mould's usage frequency to choose the most suitable material.