Frequent failures and maintenance methods for aluminum extrusion press

Frequent failures and maintenance methods for aluminum extrusion press

Question: what is the reason for the slow rise and pressure of the extruder of aluminum profile?

See if the proportional current is maximum when the push rod enters. If it is not, try it. See if the two time pressure is too small. Try to check to check whether the work is done early

Check the speed of the filling valve to be fast enough

Ask; push rod into a little bit of current, double pump proportional solenoid valve fully open the pressure of the 210MP main cylinder after the exhaust 110MP

It will be more obvious if the material is transferred slowly before and after the operation. The two fast intake cylinders can be disassembled and checked, and the grai ring will not leak. The relief valve and the two beneficial flow valves are all new. The relief valve will start to set up the 240MP separately. Do you have any other reasons? Answer: it is likely that the filling valve is not fast enough. An aluminum extrusion machine is a heavy equipment for extruding aluminum profiles. The extrusion is all aluminum and aluminum alloy bars, working load, high wear and tear, usually how to maintain and maintain the equipment?

Answer;

1. before feeding, the purity of the raw material should be checked, and the foreign body can not be allowed to enter the machine so as not to damage the machine.

2. usually check the lubrication degree of the transmission parts, so as to avoid wear and tear in the absence of lubrication.

The 3. aluminum extruder must be in the molding mold and the barrel to achieve the prescribed heating temperature to make the condiment extrusion operation and reduce the working strength of the machine when extruding profiles.

The speed of the 4. screw should be gradually increased from low to high, and the rotation time in the cylinder is less than 2-3 minutes.

The 5. screw is empty running time in the cylinder, and the working state of the main motor of the extruder is kept in mind.

6. the motor of the extruder should pay attention to its working condition at any time. It should avoid being overloaded for a long time, which will shorten the service life of the machine.

7. the connection of each component should be checked, the fixed bolt is operated according to the standard, and the phenomenon of loosening should be checked.

8. each of the lubricating parts should be checked for each class, and whether the lubrication is fully lubricated.

The bearing temperature of 9. aluminum extrusion machine should not exceed 50 degrees C.

10. screw runs, should be promptly cleaned up.

11. after the end of the day, should promptly clean up the aluminum extrusion after leaving the wreckage, packaging mold, screw, machine

The cleaning of the tube.

The maintenance and maintenance of the machine is especially important if the aluminum extrusion machine is not in trouble.

Often the problem is often stopped running (especially when no electricity), the machine is out of trouble (because the machine is out of problem, so it runs out of trouble). Now let's see how the equipment is maintained.

1, the daily care must keep up, the machinery should keep a certain cleanliness.

2, clean the filter net of the oil pump regularly, protect the oil pump and pump body. A temperature meter is used to check the difference between the temperature of the oil pump and the new oil pump, so that the relative leakage of the oil pump can be known. No matter how well the sealing condition of the oil suction pipe is good, the oil pump has a certain suction condition, so we should pay special attention to the oil of the tank.

3, the maintenance is to accumulate experience, usually more than the temperature of the table body of the machine.

4, the occurrence of problems in time to record maintenance, the next in the emergence of the same failure, the speed of the machine has a certain sense of this can avoid the possibility of overhaul.

5, must keep the hydraulic oil clean, if the mailbox has holes, it is not good to repair. It is specially prepared that the hole in the tube surface of the oil pipe must be sealed with the rubber.

6, we must constantly detect machine pressure and normal pressure, and use the three current protection of the ampere meter side motor to protect the motor from normal operation, so as to avoid sudden shutdown of the motor or motor overload.