The maintenance of the extruder(2)

(7) （extruder)when the extruder needs to be stopped for a long time, the working surfaces such as screw, barrel and head shall be coated with anti rust grease. The small screw shall be hung in the air or placed in a special wooden box, and leveled with wooden blocks to avoid screw deformation or bruise.

(8)(extruder) regularly calibrate the temperature control instrument and check its adjustment correctness and control sensitivity.

(9) (extruder)the maintenance of the reducer of the extruder is the same as that of the general standard reducer. Mainly check the wear and failure of gears and bearings. The reducer shall use the lubricating oil specified in the machine manual and add oil according to the specified oil level. Too little oil and insufficient lubrication will reduce the service life of parts; Excessive oil, high heat, high energy consumption and easy deterioration of oil also invalidate lubrication and cause damage to parts. The sealing gasket of the oil leakage part of the reduction gearbox shall be replaced in time to ensure the amount of lubricating oil.

(10) (extruder)the cooling water pipe attached to the extruder is easy to scale on the inner wall and corrode and rust on the outside. Careful inspection shall be conducted during maintenance. Excessive scale will block the pipeline, fail to achieve the cooling effect, and serious corrosion will lead to water leakage. Therefore, descaling, anti-corrosion and cooling measures must be taken during maintenance.

(11) (extruder)for the DC motor driving the screw rotation, the brush wear and contact shall be mainly checked, and the insulation resistance of the motor shall also be measured frequently whether it is above the specified value. In addition, check whether the connecting wire and other parts are rusted and take protective measures.

(12) designate special personnel to be responsible for equipment maintenance. The detailed records of each maintenance and repair shall be included in the factory equipment management archives.