The selection of mold materials is a crucial step in the manufacturing process of injection molds, as different materials can have various impacts on the cost, production efficiency, and lifespan of the molds.
Generally, there are two main types of materials for injection molds: steel and aluminum.
Steel is one of the most commonly used materials for injection molds due to its high strength, hardness, and wear resistance, making it suitable for producing high-quality injection products. Common types of steel used for molds include P20, 718, and NAK80, which differ slightly in strength, hardness, wear resistance, and other properties.
Aluminum, on the other hand, is a relatively new type of material for injection molds and offers advantages such as being lighter, having higher thermal conductivity, and being easier to process compared to steel. Molds made of aluminum can accelerate the injection molding cycle, reduce cooling time, and increase production efficiency. However, aluminum has lower hardness and wear resistance, making it unsuitable for producing high-demanding injection products.
When selecting mold materials, other factors to consider include:
1.Product requirements: Different products require different mold materials. High-demanding products often require molds made of high-strength and high-hardness steel.
2.Mold cost: The price and processing difficulty of mold materials can affect the cost of the molds, requiring a balance between cost and quality.
3.Mold lifespan: The wear and corrosion resistance of mold materials directly impact the mold’s lifespan.
In summary, the selection of mold materials is a crucial step in mold design, requiring a balance between product requirements, manufacturing costs, and other factors to choose the right material for mold manufacturing.