Current technology offers different types of gear pumps, (e.g. the pump body of steel plate construction or forged steel construction) which are used in extrusion lines for metering the melt and also to increase the melt pressure.
Generally speaking, the pumps are electrically heated by means of cartridge heaters or band heaters. These relatively simple heating systems may be used in applications where the polymer being processed is not sensitive to slight fluctuations and increases in temperature which may result from overshooting of the heating system or from frictional heat.
In contrast, for applications where the polymer being processed is
Generally speaking, the pumps are electrically heated by means of cartridge heaters or band heaters. These relatively simple heating systems may be used in applications where the polymer being processed is not sensitive to slight fluctuations and increases in temperature which may result from overshooting of the heating system or from frictional heat.
In contrast, for applications where the polymer being processed is
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