Three-roll plate bending machine may experience a phenomenon of overheating during its production process, which may be unfamiliar to many people. So what is the phenomenon of overheating in the three-roll plate bending machine?
The phenomenon of overheating in the three-roll plate bending machine refers to the fact that the heating temperature of the machine is too high, which causes the austenite grains to become coarse, and the local area of the grain boundaries appears oxidized or melted, resulting in the weakening of the grain boundaries.
After overheating, the performance of the three-roll plate bending machine will be severely degraded, and cracking may even occur during quenching. The overheated structure cannot be restored and can only be scrapped. Therefore, we must avoid the occurrence of overheating phenomenon in the actual operation process. After reading these contents, you will know that the harm of the overheating phenomenon of the three-roll plate bending machine is very great, so we must pay more attention to it in the use process to avoid losses to our production.
The three-roll plate bending machine needs to process plates of different thicknesses, so the axial spacing of the machine needs to be adjusted to ensure better processing results. How to adjust the axial spacing of the three-roll plate bending machine according to the thickness of the plate?
First, before starting the three-roll plate bending machine, carefully check for any abnormalities in each part and tighten the screws. Secondly, in the operation of the three-roll plate bending machine, it is necessary to place the workpiece in a stable position, and then start the operation after the correct position is determined. Clear signals should be specified and designated personnel should be assigned. Hands should not be placed on the rolled steel plate to inspect the sample. After the three-roll plate bending machine is shut down, check the roundness of the sample. When the roundness of the rolled workpiece is insufficient, a certain margin should be reserved when rolling to the end of the steel plate to prevent the workpiece from falling and injuring people. When the roundness cannot be found on the cylinder, when the three-roll plate bending machine rolls thick plates or workpieces with higher material strength, the moving rollers should be slightly lowered and rolled several times. When placing a narrow cylinder, it should be placed in the center of the roll. After the workpiece enters the rollers, hands and clothes should be avoided being caught in the rollers.
The brake of the three-roll plate bending machine should be normal and reliable, and the roll spacing should be strictly adjusted according to the thickness of the plate. It should be noted not to overload the three-roll plate bending machine, and the workpiece should not be rolled beyond the range of the mechanical function definition.