Chromium carbide wear-resistant steel plate cutting seems to be a very simple operation, but in fact it has very high requirements for the operator's skills as well as the cutting equipment and cutting process, because the characteristics of different materials are different. For the chromium carbide wear-resistant steel plate, in order to ensure the ideal cutting quality, it is necessary to formulate a chromium carbide wear-resistant steel plate cutting solution. Otherwise, defects may occur, and even the workpiece may be scrapped.
There is no problem in cutting other aspects of chromium carbide wear-resistant steel plate. The key is that cracks are easily generated during cutting, thereby reducing the yield of products. In this case, the first thing to do is to determine the cause of the problem in order to pay attention to the cutting operation.
1. Properties and related factors of cutting cracks in chromium carbide wear-resistant steel plates
The cracking of the chromium carbide wear-resistant steel plate is mostly produced after a certain period of cutting. It belongs to the delayed industrial crack cutting crack. Moreover, it has a direct relationship with the thickness and hardness of the steel sheet, that is to say, the greater the thickness and hardness of the steel sheet, the greater the occurrence of cutting cracks.
Second, the effective prevention of cutting cracks of chromium carbide wear-resistant steel plate
Practice has proved that the most effective way to prevent cracking of chromium carbide wear-resistant steel plate is to use preheating cutting method, which is to pre-heat the plate before cutting. However, it should be noted that the temperature required to control the preheating should be determined according to the quality grade of the steel plate and the thickness of the steel plate.
There are also a number of methods for preheating, either by preheating with a flame burner or by using an electronic heating pad or a heating furnace. In order to ensure the effect of preheating the steel plate, it is best to carry out the temperature test at the heating point to avoid the problem being not up to standard.
In addition to preheating cutting, low speed cutting is also one of the methods to prevent cracking of chrome-plated wear-resistant steel plates. The reduction of cutting speed can reduce the probability of cracks, but the reliability is certainly not as good as preheating. In fact, it is best to combine these two cutting methods, so that the chromium carbide wear-resistant steel plate will not crack.