50mm Q345R steel plate processing known as thick steel plate processing thick steel plate processing generally refers to the thickness of more than 50mm steel plate, at present, the steel plate cutting processing method mainly adopts flame cutting, can also be called oxygen cutting, thick steel plate processing specific process and steps.
According to the specific thickness of Q345R steel plate, install the plate cutting nozzle with the corresponding aperture. Adjust oxygen and fuel gas pressure to meet specified requirements.
Light the preheating flame with an igniter, then slowly open the preheating oxygen valve, adjust the length of the white center in the flame to make the flame neutral, and then preheat the starting point. At this point, it should be noted that the cutting nozzle should be perpendicular to the surface of the Q345R steel plate and the distance between the tip of the white center of the flame and the surface of the Q345R steel plate should be 1. 5-2. 5 mm.
When the temperature of the cutting point reaches the specified combustion temperature, the cutting oxygen valve is opened and the Q345R steel plate can be cut. After confirming that the lower surface of the Q345R steel plate has been cut, move the cutting nozzle to continue cutting. Pay attention to the appropriate cutting speed, not too fast or too slow. After the cutting of Q345R steel plate is completed, first close the cutting oxygen valve, and then close the preheating oxygen valve, pay attention to not reverse the processing order of steel plate.
