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Method of disassembling and washing standard melt pump

1. After the melt pump disintegrates, the gear and sealing components should be lightly placed on the clean table, and the components should be cleaned first with compressed air or clean cotton cloth. And carefully check whether the parts wear, crack, burr and scratch. Attachments on the surface can be lightly ground with 600 # sandpaper. Special care should be taken to measure gears, plates and type D bearings when grinding. Never remove metal or grind them. Otherwise, it will affect its metering function.

2. during the heating process, the residual materials are dissolved and discharged. Screw the sealing cover and the front and rear cover bolts in turn. All parts to be removed should be kept firmly in place and installed at all times. Removal of gear due to residual solid material adhesion, do not damage the tooth and bearing edges with hard knocks, but should be gently tapped with plastic or soft copper hammer to remove it.

3. Carefully remove the melt pump from the equipment and place it in a vacuum heater to raise the temperature slowly for two hours to 400-450. The temperature should not be overheated, otherwise the hardness of the pump body will decrease, which will affect the stability of the melt pump volume.

4. Wash the parts with trichloroethane or vinyl chloride after polishing, and then wipe them with cotton cloth. Do not use paper towels, because there may be paper scraps or impurities sticking to the parts, after cleaning can be installed.

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