What is the impact of mold temperature on injection molded products


Mold temperature is the most important variable factor […]

Mold temperature is the most important variable factor in injection molding. When injecting any type of plastic product, you need to make sure that the appearance of the mold is basically wet.

The hot mold surface remains on the plastic surface for sufficient time to apply pressure to the mold cavity. The reproduction rate of the appearance of the cavity is very high because the pressure of the cavity will press the soft plastic against the metal before filling the cavity and hardening the frozen skin.

On the other hand, when the plastic entering the cavity floats under high pressure, it is sometimes called a grid point. No matter how short the metal is, the grid point will slightly contact the metal. Each plastic part and the mold surface of the plastic part has a temperature limit.

Exceeding this limit may cause one or more adverse effects (for example, parts may be swallowed by glitches). The higher the mold temperature, the lower the resistance to movement.

For many injection molding machines, this naturally means that they can pass through gates, gates and cavities faster. This is because the radiation flow control valve used cannot correct for this change, and the faster the filling, the higher the movable channel and cavity. Ineffective pressure. There is a possibility of flickering and trouble.

Before the high pressure is formed, the hot product pattern will not thaw the plastic that enters the burr area.

This may cause the molten material to clean the discharge rod and overflow into the gap of the dividing line. This proves that some ancient flow control programmers can practice the need for good injection speed control.

Generally, increasing or decreasing the temperature of the mold will increase or decrease the condensation layer of the plastic in the mold cavity, making it easier for the molten plastic material to flow through the mold cavity, and increase the internal and external components of the part.

At the same time, the lowering of the mold temperature improves the tensile strength of the part.