Not eye-catching, but definitely a core component. Many colleagues in extrusion are asking: Why is the small shaft sleeve in the melt pump a core component?
Support the gear shaft, withstand high temperature and high pressure radial loads, and stabilize gear operation
Equipped with a guide groove, relying on melt self lubrication to reduce wear and tear
Protect the pump shaft, only replace the shaft sleeve after wear and tear, eliminating the need to replace expensive gear shafts and saving maintenance costs
Block the lateral flow of the melt, play an auxiliary sealing role, stabilize the pump chamber pressure, and ensure the accuracy of discharge measurement
Most materials are made of nitride steel and hard alloy, which have strong high temperature resistance and wear resistance,Once the shaft sleeve wears out, problems such as pressure fluctuations and unstable discharge will directly occur!
The selection of extrusion granulation, BOPP film, sheet, and wire drawing production lines, as well as the selection of melt pump shaft sleeves, should be taken seriously.
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