Instructions for how to upkeep and maintenance 23 roll tension leveler for aluminum plate

1 Use and maintenance 23 roll tension leveler

1.1 Standard use and maintenance 23 roll tension leveler

Avoid the damaging of the work roll, back up roll and transmission device, work roll chromium loss, work roll bending, work roll or back up roll shaft damage, work roll transverse aluminum sticking, roll wrapping, imprints and other faults,which caused by production operation and maintenance.

1.1.1 Avoid overloading the 23 roll tension leveler

Avoid the thickness and the yield limit exceeding the original design capacity of the tension leveler machine; avoid the material head and tail of the super thickness, especially the overlap of the two plates and tails through the machine; avoid artificially increasing the straightening load and causing impact on the leveler. Overload operation of the tension leveler will lead to damage to the work roll device and back up roll device and transmission device, damage to the work roll, resulting in chromium, aluminum adhesion, and failure.

1.1.2 Avoid winding the roll

When the plate belt with a warped head passes through, it passes through the gap between the rolls due to improper operation, and the roll turns the plate belt around the work roll or the support roll, which directly leads to the aluminum adhesion, chromium loss and damage of the work roll, which will cause the bending of the work roll.

During the operation of the equipment, do not send sand cloth, small aluminum block and other sundries into the leveler machine or between the work roll and the support roll, otherwise it may cause chromium loss or bending of the work roll.

1.1.3 Correct roll surface lubrication

Correct roll surface lubrication, clean the roll surface before the production of each aluminum roll, need to spray solvent in production to spray solvent form mist, and pay attention to the amount of spraying solvent, prevent the permeability permeability, bearing grease bearing box, cause poor lubrication, the bearing rotation and heating, lose the original precision, seriously damage the bearing, deviation from the correct bearing, with the work roll shaft point contact, bite and hurt the work roll chrome layer.

1.1.4 Avoid improper operation of the machine

During the production process, the coupling and the work roll or gear shaft sometimes fall off. If not stopped in time, the coupling rotates disorderly, breaking or bending the work roll or gear shaft journal, resulting in the transverse aluminum adhesion of the work roll. In the start, stop and operation of the equipment, the speed of the tension leveler machine and other equipment is improper, the belt in a short time, easy to bend the leveling roll body. Especially, after the completion of production, resulting in the plate (belt) lost tension, the straight roll bending or cause transverse aluminum adhesion.

1.1.5 Avoid improper straightening operation

Improper straightening operation is easy to damage the straightening roll. Straightening process should be all work roll basically work at the same time, if the pressure adjustment is not the overall pressure, but only by the exit, entrance or middle several work roll straightening, will make the work roll straightening load doubled, work roll off chromium or sticky aluminum, serious damage work roll surface, straightening machine failure. Feed is not delivered into the straightening machine, especially in the block straightening production, will make the straightening pressure operation difficult, the overall force is asymmetric, harm the working roller. In the process of straightening, the regular adjustment is also easy to damage the working roll surface.

1.1.6 Correct equipment maintenance

After each roll change, the work roll must be re-polished to avoid diameter differences and poor surface quality. Frequent roll changes should be avoided to maintain proper alignment. If the shaft neck wears or the coupling loosens, improper gap adjustment can affect the tension leveler’s stability and reduce its lifespan. Also, if the needle roller bearings are unevenly sized, it will shorten their lifespan.

1.2 Use information of the roll system of maintenance 23 roll tension leveler

After the straight roll is installed and used, the user department shall implement quality tracking, and fill in the quality tracking feedback Form of Equipment / Spare Parts and timely feedback the quality information to the infrastructure equipment department.

After each batch of straightening roll installation, record the use time, problems, maintenance, polishing and chrome plating in detail on the straightening roll use ledger.

After each batch of straightening rollers is installed, the maintenance department records the straightening roll information on the passing statistical table of the straightening roll products, and the production team will record the passing volume of each shift. After the batch of straightening rolls is stopped, the equipment department of the business division will recover the passing statistical table and make summary statistics.

2. Maintenance 23 roll tension leveler:

• The commissioned processing of tension leveler spare parts shall be executed in accordance with the Entrusted Processing Management Process.
• Product quality defects caused by the roll surface imprint in use, such as the straightening roll surface without damage, can be manually polished or used after the lathe is polished.
• The surface of the straightening roll system deschrome, wear, bump or bending, shaft wear and other defects of the impact of product quality need to be outsourced for maintenance.
• During external maintenance, attention should be paid to the supporting number of roll units to ensure the uniform diameter of the same set of roller systems.
• The outsourcing maintenance of the straight roll system should be timely, do not cause an internal backlog, to timely grasp the information of outsourcing maintenance,
• The maintenance cycle of the leveling roll system is generally 2 and a half months.
• In case of quality problems of the straightening roll system, the infrastructure equipment Department shall organize the work according to the contract, and all relevant departments and personnel shall actively cooperate.