How to control plastic injection moulding temperature

Plastic Injection Moulding temperature control

Today we discussed plastic injection molding temperature control. Hot runner mold temperature control box, combined with heating coil system to control the temperature of the phantom. This is a plastic injection mold temperature control method.

There are several heating methods or cooling methods to adjust temperature.
Steam heating, hot oil circulation, hot water circulation. These heating methods are specific ways. At the same time, plastic injection molding cooling can be used to cool circulating water or air.

Plastic injection molding machine uses mold temperature adjustment, the application performance is more heat-resistant, cooling and water cooling. First, the resistance heating die, with resistance wire heating plate. We make cylindrical parts into electric circle, mold body electric hot rod. The mold needs to be cooled part of the arrangement cycle to the conveying pipe, can be cooled. Resistance heating and cooling water circulation, the two mold specific temperature conditions need to work alternately, so that the mold temperature control requirements in the process temperature range.

Plastic injection moulding temperature precautions

First, the mold temperature of heating parts should be uniform to ensure the filling quality of the cavity. This will make the quality of plastic injection products stable and ensure the acceptance rate of injection products.

Another way is the process temperature regulator to determine the melt viscosity. the higher viscosity melt is injected into the mold and should be slightly higher than the temperature control. Lower viscosity melt filling can properly reduce the mode specific temperature.

When preparing injection molding production, mold temperature must be within process requirements. In order to ensure that the mode ratio temperature is uniform and heated to the temperature required by the process, the mode is longer than the constant temperature.

Large plastic products

Due to its forming melt feeding amount, the melt flow than and large-mode specific heat moisture in the melt flow channel parts to prevent the melt. Due to the melt flow channel is too long to make the flow cooling, to increase the viscosity of the melt. so that the material flow slows down, melt injection mold filling quality, or even cause the melt ahead of cooling solidification, plastic injection moulding machines can not be.

In order to reduce the melt flow channel length leaving the melt cooling, increased heat loss, you want to add insulation in the low-temperature parts of the mold cavity and the melt flow channel between the high-temperature parts of the moisture layer.

if you want to know more about injection moulding temperature control , contact us about our history and experience.