- Mold temperature is the most important parameter affecting the cycle? Shaping and product quality. Temperatures lower mold can be drawn? Shorter cooling time, but maybe because the temperature dropped rapidly that? Increased hinder filling plastic into the mold. These phenomena? That finished high stress exists. When the mold temperature increases do? For the full shape shrinkage, reduced shrinkage later. At the same time reduce? Intrinsic stress and increase product surface quality.?
- Cooling time is determined primarily based on temperature? Mold. Unable to shorten cooling by reducing the temperature? Mold that must concern the design stage of products (avoid thickness? Unnecessary), mold design (mold material, plastic channel, waterline? cool ...). ??
- To meet the product characteristics, especially the shape it? need to determine the temperature of the mold reached. Implementation is essential principles? Being watched operating temperature such that the mold temperature kept fluctuating in? Fixed rate. First, the injection molding cycle, the mold temperature will? increased from 5ºC ÷ 15ºC by contact with liquid plastic. In the next cycle,? This heat needs to be increased to reduce the heat load goes by.? So, with a stable cycle, the temperature fluctuating graph with a cycle? saw. During the initial phase, the mold temperature will increase in the? Interval determined to reach a steady state temperature on the set? heat exchanger. This temperature can be from 10 ° C to 30 ° C higher than? The initial temperature of the system and also to control fluctuations? The temperatures during the manufacturing process. ?
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