Many people believe that the use of a flame cutting machine, cutting machine in the process of the use of flame, there will inevitably be some different defect. In order to use the flame to give you a better cutting machine, here we have a flame cutting machine cutting points to introduce:
　1 points should be paid attention to in forging cutting
　Due to a surface oxide skin is thick, plus the oxide skin ignition temperature above the melting point, so in cutting to cutting interruption phenomenon, caused by cutting quality and low efficiency. Therefore in the forging cutting, should first remove the cutting area on the lower surface of the oxide skin after cutting, in order to improve the cutting speed and cutting quality.
　2 rolling billet cooling bed tooth plate cutting deformation resistance points
　How to control the deformation of the workpiece in cutting is very important, such as routine arrangement will cause the deformation of the workpiece and the cutting path difference, even if the plastic is difficult to meet the size requirements, will eventually make the scrapping of the products. So the arrangements cutting route reasonably is the key.
　3 points should be paid attention to in the plate cutting
　In the thick steel plate cutting, temperature decreases from the surface down on. The cutting begins, oxygen pressure gradually increased, and finally reached agreement in the plate thickness direction. This has resulted in the thickness direction of the starting position of steel plate cutting combustion is not consistent, defects of workpiece cutting start end.
　In order to avoid the defects can be as follows:
　The arc feed increase into the line length, avoid direct point. This method uses the effect is good, has been widely used in the production, the disadvantage is the waste material.
　The ignition rod. The method is in starting point close to the plate thickness increases a piece of steel plate, close to place should not have gap, knife from the ignition rod starting, ignition rod will guide the cutting flame to the bottom plate, plate burning velocity reached the same, get the best cutting section. Ignition rod can be replaced by scrap cut. This method reduces the workpiece and the edge distance, reduces leftover materials production, effectively improving the utilization rate. Ignition rod is practical in cutting thick steel plate