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数控等离子切割机断弧是怎么回事?如何解决?

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  • 价格要求: 电议
  • 采购数量:大量
  • 包装要求:无要求
  • 采购情况:长期有效
  • 所在地:湖北武汉市
  • 发布日期:2020-01-16 16:46
  • 信息有效期: 长期有效
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数控等离子切割机操作简单,具有切割精度高、工作效率高、劳动强度低等优点,在多种金属及小规格工件切割中十分受用,但是对于初接触的人来说,断弧就成了十分常见且令人头疼的问题,为了帮助大家解决这种问题,小编整理总结了数控等离子切割机断弧的原因及解决办法,希望大家可以进行参考。 CNC plasma cutting machine, simple operation, high cutting precision, high efficiency, and low labor intensity, in a variety of metal cutting of small size workpieces is very useful, but for the contact person, at the beginning of the arc breaking has become very common and headache problem, to help you solve this problem, botha small make up summarize the CNC plasma cutting machine arc breaking the cause and the solution, we hope you can take reference.        


  一、气压不够稳定 First, the pressure is not stable enough

          
  等离子切割工作气压过高或者过低都将对切割效果形成影响。如果工作气压远低于说明书要求气压,意味着等离子弧的喷出速度减弱,输入空气流量小于规定值,此时不能形成高能量、高速度的等离子弧,从而造成切口质量差、切不透、切口积瘤的现象。若输入空气压力远远超过0.45MPa,则工作气压过大,在形成离子弧后,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。 High or low plasma cutting pressure will affect the cutting effect. If the working air pressure is much lower than the pressure required in the manual, it means that the plasma arc ejection speed is weakened, and the input air flow rate is less than the specified value. At this time, the plasma arc with high energy and high speed cannot be formed, resulting in poor notch quality, impenetrable incision, and notched tumor. If the input air pressure is far more than 0.45mpa, the working pressure is too large. After the ion arc is formed, the excessive airflow will blow away the concentrated arc column, dispersing the energy of the arc column and weakening the cutting strength of the plasma arc.        
          

  二、割炬喷嘴和电极烧损 Two, cutting torch nozzle and electrode burn

          
  因喷嘴安装不当,如丝扣未上紧,设备各挡位调整不当,需用水冷却的割炬在工作时,未按要求通入流动的冷却水以及频繁起弧,都会造成喷嘴过早损坏。 Due to improper installation of the nozzle, such as the screw is not tightened, the equipment block adjustment is not appropriate, when the cutting torch needs water cooling, not according to the requirements into the flow of cooling water and frequent arc, will cause premature damage to the nozzle.        
  解决方法:按照切割工件的技术要求,正确调整设备各挡位,检查割炬喷嘴是否安装牢圄,需通冷却水的喷嘴应提前使冷却水循环起来。切割时,根据工件的厚度调整割炬与工件之间的距离。 Solution: according to the technical requirements of cutting workpiece, adjust the equipment correctly, check whether the cutting torch nozzle is installed firmly, the nozzle that needs cooling water should make cooling water circulation in advance. During cutting, adjust the distance between cutting torch and workpiece according to the thickness of the workpiece.        

  三、输入交流电压过低 The input ac voltage is too low

          
  等离子切割机的使用现场有大型用电设施,切割机内部主回路元件故障等,会使输入交流电压过低。 The use of plasma cutting machine site has large electrical facilities, cutting machine internal main circuit component failure, will make the input ac voltage is too low.        
  解决方法:检查
数控等离子切割机所接入电网是否有足够的承载能力,电源线规格是否符合要求。等离子切割机安装地点,应远离大型用电设备和经常有电气干扰的地方。使用过程中,要定期清理切割机内灰尘和元件上的污垢,检查电线是否有老化现象等。 Solution: check whether the plasma cutting machine connected to the grid has enough carrying capacity, whether the power line specifications meet the requirements. Plasma cutting machine installation site, should be far away from large electrical equipment and often have electrical interference. During the use of the machine, to regularly clean the dust and components on the dirt, check whether the wire aging phenomenon.        
          

  四、地线与工件接触不良 Bad contact between ground wire and workpiece

          
  接地是切割前一项必不可少的准备工作。未使用专用的接地工具,工件表面有绝缘物及长期使用老化严重的地线等,都会使地线与工件接触不良。 Grounding is an essential preparatory work before cutting. Special grounding tools are not used, the surface of the workpiece has insulation and long-term use of aging serious ground wire, will make the ground wire and the workpiece bad contact.        
  解决方法:应使用专门的接地工具,并检查是否有绝缘物影响地线与工件表面接触,避免使用老化的接地线。 Solution: special grounding tools should be used, and check to see if any insulation affects the contact between the ground wire and the surface of the workpiece, avoid using aging grounding wires.        
          

  五、火花发生器不能自动断弧 Five, spark generator can not automatically break the arc

          
  等离子切割机工作时,首先要引燃等离子弧,由高频振荡器激发电极与喷嘴内壁之间的气体,产生高频放电,使气体局部电离而形成小弧,这一小弧受压缩空气的作用,从喷嘴喷出以引燃等离于弧,这是火花发生器主要的任务。正常情况下,火花发生器的工作时间只有0.5~1s,不能自动断弧的原因一般是控制线路板元件失调,火花发生器的放电电极间隙不合适。 Plasma cutting machine work, first of all to ignite the plasma arc, excited by a high-frequency oscillator electrode and nozzle inner wall of the gas, produce high-frequency discharge, make the gas local ionization to form a small arc, this small arc by the action of compressed air, from the nozzle to ignite from the arc, this is the main task of sparker. Normally, the working time of spark generator is only 0.5 ~ 1s, and the reason why the spark generator can't automatically break the arc is generally the imbalance of control circuit board components, and the gap of discharge electrode of spark generator is not suitable.        
  解决方法:应经常检查火花发生器放电极,使其表面保持平整,适时调整火花发生器的放电电极间隙(0.8~1.2mm),必要时更换控制板。 Solution: discharge electrode of spark generator should be checked frequently to keep its surface smooth, discharge electrode gap of spark generator (0.8 ~ 1.2mm) should be adjusted timely, and the control board should be replaced if necessary.        


  除以上客观原因外,数控等离子切割机断弧的原因还与使用人员有关,如果如果使用人员对设备不够熟悉、操作水平低下及操作不当等,都会导致断弧现象,这就需要企业对使用人员进行充分的培训教育之后才能上岗。 In addition to the above objective cause, the cause of the fault arc CNC plasma cutting machine is related to the use of personnel, if if you use the personnel familiar with equipment is not enough, and low operation level of improper operation, etc., can lead to broken arc phenomenon, which requires enterprises to fully use of personnel training to mount guard after education, luoyang botha heavy focus on the production of various kinds of CNC cutting machine and other nc processing equipment, if there is a need to purchase a friend, can leave a message on our website, or call customer service for detailed consultation.   

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