Nuts,Hex Nut,Cap Nut,Wing Nut,Flange Nut Jiangsu Minglu Stainless steel Co.,ltd , https://www.minglufastener.com
2. Use a reasonable cutting distance in accordance with the requirements of the instructions, using a reasonable cutting distance, cutting distance that cuts the distance between the nozzle and the workpiece surface, when piercing, try to use the normal distance of 2 times the distance or plasma arc can be passed The maximum height.
3. The perforation thickness should be within the allowable range of the machine system. The cutter cannot pierce the steel plate beyond the working thickness. The usual perforation thickness is 1/2 of the normal cutting thickness.
4. Do not overload nozzles. Use nozzles to be overloaded (ie, exceed the operating current of the nozzle) and the nozzles will be damaged quickly. The current intensity should be 95% of the operating current of the nozzle. For example, the current intensity of a 100A nozzle should be set to 95A.
5. Maintain plasma gas drying and clean The plasma system needs dry and clean plasma gas to work properly. Dirty gas is usually a problem of the gas compression system. It will shorten the service life of the consumables and cause abnormal damage. The method for testing the gas quality is to set the torch in the test state and put a mirror under it to consume the gas in the torch. If moisture and mist appear on the mirror, you need to find out the reason and correct it.
6. The cut should start from the edge as far as possible from the edge, rather than pierce the cut. Using the edge as a starting point will prolong the life of the consumable. The correct method is to align the nozzle directly at the edge of the workpiece and then start the plasma arc.
7. Avoid plasma arc extension. If the plasma arc can only reach the surface of the workpiece when it is elongated and extended, the plasma arc will produce such stretching and expansion at the beginning and end of the cutting. This will cause abnormal damage to the nozzle. This problem can be avoided if the right edge start technique is used and the appropriate “off-of-arc†signal time is chosen.
8. Reducing unnecessary arcing (or arcing) time The nozzle and electrode consumption is very fast. Before starting, the torch should be placed within the walking distance of the cutting metal.
9. Apply a splash-proof chemical paint to the protective shell. The splash-resistant chemical paint helps to reduce slag deposits on the protective shell. However, be sure to remove the protective shell from the torch before applying paint.
10. Remove the slag from the protective shell. The slag on the torch shield should always be removed. This slag will cause a destructive heavy plasma arc.
11. Removal of gas after replacement of consumables After replacement of consumables or a long period of shutdown, gas should be removed (2-3 minutes is appropriate) to ensure that water and mist are removed from the torch.
12. Try to keep the torch and consumables clean. Any dirt on the torch and consumables can greatly affect the function of the plasma system. When replacing the consumables, place them on a clean flannel. Always check the connection ribs of the torch and clean the electrode contact surfaces and nozzles with hydrogen peroxide-based cleaner.
13. Removal of Oxygen from Air or Oxygen Nozzles When using air or oxygen plasma, oxides are deposited in the nozzles. This oxide can affect airflow and reduce the life of consumables. Wipe the inside of the nozzle with a clean fleece to eliminate oxides.
14. The use of demineralized water to inject torch hard water can cause metal impurities to precipitate on the nozzle ring, which will affect airflow flow, reduce torch quality and reduce consumable part life.
15. One of the reasons why the most common torch damage is checked daily for airflow and cooling flow is the lack of cooling flow. It is necessary to constantly check the flow and pressure (if air cooling) or coolant (if water cooling) to the torch, if insufficient airflow is found When leaked, it should be stopped immediately to eliminate the malfunction.
The company can provide special customization for CNC cutting machine users.
How to increase the service life of the consumable parts of the CNC cutting machine
1. Ensure that the correct plasma pressure and flow plasma pressure and flow are important for the life of the consumables. If the pressure is too high, the life of the electrode will be greatly reduced; air pressure is too low, the life of the nozzle will be affected.