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What is The Processing Temperature and Mold Temperature For PMMA ?

What is the processing temperature and mold temperature for PMMA high impact injection molding, and do you want to maintain pressure?

Polymethyl methacrylate (PMMA) is widely used in various fields such as automotive, electronics, construction, and daily necessities due to its excellent transparency, weather resistance, and processability. Especially for products that require high impact resistance, PMMA high impact injection molding technology is particularly important. So, when conducting PMMA high impact injection molding, how should we set the injection temperature, mold temperature, and determine whether pressure holding is needed? This article will provide you with answers one by one.

The selection of injection temperature is the crucial first step in the high impact injection molding process of PMMA. Generally speaking, the melting temperature range of PMMA is between 220 ° C and 260 ° C, but the specific temperature needs to be adjusted according to the specific material model, additive content, and injection molding machine performance. A higher injection molding temperature helps to fully melt the material, reduce melt viscosity, improve flowability, and thus enhance the impact resistance of the product. However, excessively high temperatures can also lead to material degradation, affecting the appearance and performance of the product. Therefore, precise control of injection temperature is the key to obtaining high-quality PMMA injection molded parts.