Like other machinery and equipment, aluminum extrusion press will bear all kinds of dynamic loads from the day it is put into production. After working for a period of time, the working performance and efficiency of the equipment will change or decrease slightly due to the wear and tear of working transmission, the corrosion of molten material and decomposed gas, the pollution of the environment and the mistakes of operation methods. The daily maintenance of aluminum extrusion press refers to the maintenance inspection of aluminum extrusion press by the operators in each production shift during the normal production of aluminum extrusion press. For example, after the succession, add lubricating oil to the equipment, tighten loose nuts, and scrub the oil on the equipment. In order to prolong its service life and improve its working efficiency, the daily maintenance of aluminum extrusion press is very important. In the process of daily maintenance, we need to pay attention to nine points:

1. Always check the quality of raw materials for production, and no foreign matter such as sand and metal powder is allowed to enter the barrel.

2, check the lubrication parts at least 1 ~ 2 times per shift, add enough lubricating oil, bearing parts working temperature should not exceed 50℃.

3. Before putting into production, the barrel and the molding die should have a heating constant temperature time of not less than 10%, and it is not allowed to put into production below the plasticizing temperature of raw materials.

4. The screw must be started at a low speed, and the speed of the screw is allowed to increase gradually only after running for a period of time at a low speed.

5. The idle running time of the screw in the barrel is not allowed to exceed 2 ~ 3min.

6. Always observe the current change of the main motor during the work of aluminum extrusion machine. If it is found that the electric motor works under overload for a long time (instantaneous overload is allowed), it should stop immediately, find out the cause of the fault, and then continue production after troubleshooting.

7. After the barrel is heated to a constant temperature for the first time, tighten the fixing screw connecting the barrel and the stand again.

8. Before installing the screw and die, clean the mating contact surface of each part, and coat the fastening bolt with a layer of molybdenum disulfide or silicone oil to facilitate the disassembly of the parts at high temperature. When disassembling and assembling the parts, it is forbidden to use a heavy hammer to knock on the working face of each part. If necessary, pad the hardwood, and knock the hardwood with your hand to disassemble the parts.

9. When removing the residual materials on the barrel, screw and die, only bamboo or copper knives can be used to scrape and shovel the adhesive materials. It is not allowed to scrape the adhesive materials with steel knives, and it is not allowed to remove the residual materials on the screw by barbecue with fire.

These tasks are also part of the operating rules of aluminum extrusion press, so for the aluminum extrusion press operators, it is one of the contents of better maintenance of the equipment to conscientiously implement the operating rules and operate according to the production operation order required by the aluminum extrusion press.

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