数控开料锯气体气压对切割质量的影响

如果用户设置的数控开料锯气体气压过低，那么在工作时数控等离子开料锯的离子弧的喷出速度就会减弱，接着输入的空气流量也就会小于规定值，这就会造成形不成高能量、高速度的等离子弧，结果就是造成切口质量差、切不透、切口积瘤的现象。其中数控开料锯气压不足的原因有空压机输入空气不足，空气调节阀调压过低，电磁阀内有油污，气路不通畅等。这里我们要求操作数控开料锯的人员在使用前注意观察空压机输出压力显示，如不符合要求，要及时进行调整，以免造成原料和时间的浪费。

另外当数控开料锯的工作气体气压高于0.45MPa时，通常我们将判断切割辅助气压过高，则在等数控开料锯形成离子弧后，过大的气流会吹散集中的弧柱，使弧柱能量分散，减弱了等离子弧的切割强度。造成气压过高的原因有：输入空气调解不当、空气过滤减压阀调节过高或者是空气过滤减压发失效。这里我们要求操作人员需要检查空压机是否调整合适，空压机和空气过滤减压阀的压力是否失调。开机后，如旋转空气过滤减压阀调节开关，表示无变化，说明空气过滤减压阀失灵，需更换。压力或检修空压机。如输入气压已达到要求，应检查空气过滤减压阀的调节是否正确，表压显示能否满足切割要求。否则应对空气过滤减压阀进行日常维护保养，确保输入空气干燥、污油污。如果输入空气质量差，会造成电磁阀内产生油污，阀芯开启困难，阀口不能完全打开。另外。割矩喷嘴气压过低，还需要换电磁阀；气路截面变小也会造成气压过低，可按说明书要求更换气管。

在数控开料锯中常见的问题就是变频器反常，一般形成开料锯变频器反常的原因有两点：一是开料锯的链条由于长期运用而发作懈怠现象，然后导致变频器承受了过量的输出量，然后导致反常；二是开料锯的锯座电机发作毛病，这时可以检测电机进行毛病扫除。关于这些常见的问题，客户要是做到心中有数，在发作问题之后，能依据毛病现象很简单就排查出来症状地点，依据毛病找出相应的处理方法，然后快速的恢复开料锯的正常运用。

If the user set the CNC cutting saw gas pressure is too low, then the ion arc of the CNC plasma cutting saw will be spewed out at work, and then the input air flow will be less than the specified value, which will result in the formation of a high energy, high speed plasma arc, resulting in poor incision quality, impenetrable cutting, incision tumor phenomenon. Among the reasons for the insufficient pressure of the CNC cutting saw, the air compressor input air is insufficient, the air regulating valve pressure is too low, the solenoid valve has oil, and the gas path is not smooth. Here we require the operator of the CNC cutting saw to pay attention to the output pressure display of the air compressor before use, if it does not meet the requirements, it should be adjusted in time to avoid waste of raw materials and time.

In addition, when the working gas pressure of the CNC cutting saw is higher than 0.45MPa, usually we will judge that the cutting auxiliary pressure is too high, then after the formation of the ion arc of the CNC cutting saw, the excessive airflow will blow the concentrated arc column, so that the arc column energy is dispersed, and the cutting intensity of the plasma arc is weakened. The causes of high air pressure are: improper input air mediation, air filter pressure reducing valve adjustment is too high, or air filter pressure reduction failure. Here we require the operator to check whether the air compressor is adjusted properly, and whether the pressure of the air compressor and the air filter reducing valve is out of alignment. After starting, if the air filter pressure reducing valve adjustment switch is rotated, it indicates that there is no change, indicating that the air filter pressure reducing valve is faulty and needs to be replaced. Pressure or repair the air compressor. If the input air pressure has met the requirements, check whether the adjustment of the air filter pressure reducing valve is correct, and whether the gauge pressure display can meet the cutting requirements. Otherwise, the air filter pressure reducing valve should be maintained daily to ensure that the input air is dry and dirty. If the input air quality is poor, it will cause oil pollution in the solenoid valve, the spool is difficult to open, and the valve port cannot be fully opened. Plus. The torque nozzle pressure is too low, but also need to change the solenoid valve; The smaller section of the gas path will also cause the air pressure to be too low, and the gas pipe can be replaced according to the instructions.

The common problem in the CNC cutting saw is the frequency converter abnormal, the general formation of the cutting saw frequency converter abnormal there are two reasons: first, the chain of the cutting saw due to long-term use and slack phenomenon, and then lead to the frequency converter to bear excessive output, and then lead to abnormal; Second, the saw base motor of the cutting saw is faulty, and the motor can be detected for fault cleaning. Regarding these common problems, if the customer knows well, after the onset of the problem, it is very simple to identify the location of the symptoms according to the problem, find out the corresponding treatment method according to the problem, and then quickly restore the normal use of the cutting saw.