Homogeneous cooling: Crucial for the production of plastic parts

Plastic deflection baffles Homogeneous cooling: crucial for the production of plastic parts

15.06.2021Editor: MA Alexander Stark

Germany — Maintaining an optimal mould temperature is crucial for in the production of plastic parts. To ensure homogenous cooling, Knarr has designed plastic deflection baffles.

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The baffles are made of glass fibre reinforced polyamide 66 (PA66GF) and have a frontal profile.

(Source: Knarr)

The cycle time is an essential factor for the economical production of plastic parts. This in turn is heavily dependent on an optimal mould temperature and reacts very sensitively to even the smallest changes. This is one reason why uniform temperatures are so important to tool designers.

The plastic deflection baffles from Knarr ensure homogeneous temperature balance. The baffles are made of glass fibre reinforced polyamide 66 (PA66GF) and have a frontal profile. When the medium is deflected, turbulence is ensured at the same time. In addition, the plastic used is characterized by high strength and, above all, high dimensional stability. In combination with the turbulence, the medium also takes the desired path through internal holes. The result is ideal heat dissipation in the entire cooling circuit.

The plastic baffles are available either with a plug including an O-Ring (72111) or alternatively with a thread (72121). The first option can be used at a permanent temperature of 200 °C. In the alternative solution, the thread is glued to the baffle. The adhesive is designed for a permanent temperature of 150 °C. Both versions are available in the common diameters of 6 mm, 8 mm, 10 mm, 12 mm and 14 mm. The lengths depend on the diameter and type and range from 329 to 333 mm. The baffles are available in packaging units of four. Two of them are equipped with a connecting piece, the other two with the matching counterpart. The parts can thus be easily connected together and extended to a total length of up to 625 mm.

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