Alloy multi-layer extrusion screw

NegotiableUpdate on 01/12

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Nature of the Manufacturer: Producers

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Overview

Alloy multi-layer extrusion screw surface hardness: HV ≥ 900 Nitriding layer depth: 0.5-0.8mm Surface WC/Co integral spray welding, can effectively improve the use of the screw

Product Details

　　Alloy multi-layer extrusion screwFeatures:

1. Wear resistant and have a long lifespan;

2. High temperature resistance, no deformation at high temperatures;

3. Corrosion resistance, materials have corrosiveness;

4. Good cutting performance;

5. High strength, capable of withstanding large torque and high speed;

6. After heat treatment, the residual stress is small and the thermal deformation is small.

　　Alloy multi-layer extrusion screwDaily and Regular Maintenance:

1. Daily maintenance is a regular routine work that does not take up equipment operating hours and is usually completed during driving. The key is to clean the machine, lubricate all moving parts, tighten loose threaded parts, timely inspect and adjust the motor, control instruments, various working components and pipelines, etc.

2. Regular maintenance is generally carried out after the extruder has been running continuously for 2500-5000 hours and then stopped. The machine needs to be disassembled, inspected, measured, and evaluated for the wear of its main components, replaced with parts that have reached the specified wear limit, and repaired for damaged parts.

3. Empty operation is not allowed to prevent the screw and barrel from rolling.

If there is any abnormal noise during the operation of the extruder, it should be stopped immediately for inspection or repair.

5. Strictly prevent metal or other debris from falling into the hopper to avoid damaging the screw and barrel. To prevent iron impurities from entering the barrel, magnetic suction components or magnetic frames can be installed at the feeding port of the barrel to prevent impurities from falling in. The materials must be sieved in advance.

6. Pay attention to the cleanliness of the production environment and avoid mixing garbage and impurities into the material to block the filter plate, which will affect the product output, quality, and increase the resistance of the machine head.

When the extruder needs to be stopped for a long time, anti rust lubricating grease should be applied to the working surfaces of the screw, barrel, and head. Small screws should be suspended in the air or placed in wooden boxes, and leveled with wooden blocks to prevent deformation or damage to the screws.

8. Regularly calibrate temperature control instruments, check their correctness of adjustment and sensitivity of control.

9. The maintenance of the reducer of the extruder is the same as that of a general standard reducer. Mainly inspect the wear and failure of gears, bearings, etc. The gearbox should use the lubricating oil specified in the machine manual and add oil according to the specified oil level height. Insufficient oil and lubrication can reduce the service life of the parts; Excessive oil, high heat generation, high energy consumption, and easy deterioration of oil can also cause lubrication failure and damage to parts. The sealing gasket should be replaced in a timely manner at the oil leakage location of the gearbox to ensure the amount of lubricating oil.

10. The inner wall of the cooling water pipe attached to the extruder is prone to scaling and the outside is prone to corrosion and rust. Careful inspection should be carried out during maintenance. Excessive scale can block the pipeline and fail to achieve cooling effect. Severe corrosion can lead to water leakage. Therefore, descaling and anti-corrosion cooling measures must be taken during maintenance.

11. For DC motors that drive screw rotation, it is important to check the wear and contact of the brushes, and to regularly measure whether the insulation resistance value of the motor is above the specified value. In addition, check whether the connecting wires and other components are rusted and take protective measures.

12. A dedicated person is responsible for equipment maintenance and upkeep. And include detailed records of each maintenance and repair in the factory equipment management file.