Plasma consumables maintenance
Plasma consumables maintenance costs of CNC plasma cutters are a concern for customers. CNC plasma cutting machine is one of the types of CNC cutting machine, but also a large one-time investment in a kind of equipment. Whether it is the United States, or Germany and other world's top ion cutting machine power supply, although they cut good quality, but plasma consumption parts of the problem can not be underestimated, how to take effective methods to reduce losses is also an effective means of cost savings! As long as the problems mentioned noted, the service life and maintenance costs of CNC plasma cutting machines can generally be greatly improved. Here's a look at common methods to minimize the cost of using consumables for plasma power supplies. Customers often reflect such a problem: CNC plasma cutting machine use costs are too high! In order to enable customers to get greater benefits at the lowest cost. to minimize the cost of using consumables for plasma cutters. In the use of CNC plasma cutting machine when its cutting quality is unstable, volatile replacement frequently, found that more users in the use of the operation is not standardized, while not enough attention to some details.
1. Cutting should start from the edge, as far as possible from the edge of the cutting, not perforated cutting. Using edges as a starting point extends the life of the consumables, and the correct approach is to point the nozzle directly at the edge of the work piece before starting the plasma arc.
2. Reduce unnecessary "arcing (or arcing)" time, the consumption of nozzles and electrodes at arcing is very fast, before the start of the torch should be placed in the cutting metal walking distance.
3. The nozzle should not be overloaded use, let the nozzle overload (i.e. more than the nozzle's working current), will cause the nozzle to damage quickly. The current strength should be 95% of the working current of the nozzle. For example, the current strength of the nozzle at 100A should be set to 95A.
4. The use of reasonable cutting distance, in accordance with the requirements of the instruction manual, the use of reasonable cutting distance, cutting distance is the distance between the cutting nozzle and the surface of the work piece, when perforated, as far as possible the normal cutting distance of 2 times the distance or the maximum height can be transmitted by the plasma arc.
5. Perforation thickness should be within the permitted range of the machine system, cutting machine can not be more than the working thickness of the steel plate perforated, the usual perforation thickness of 1/2 of the normal cutting thickness.
6. Try to keep the CNC cutting machine torch and consumables clean: any dirt on the torch and expendable parts will greatly affect the function of the plasma system. When replacing the consumables, place them on a clean velvet cloth, check the torch's connection lines frequently, and clean the electrode contact surfaces and nozzles with hydrogen peroxide cleaners.
7. As little perforation cutting, perforation is steel water resputtering will hurt the nozzle, this is one of the most important reasons for the cut nozzle damage, if you must perforated cutting, it is best to drill a drill bit in the perforation, from the pre-drilled place to start cutting;
8. Try to cut in the cutting machine rated the normal cutting thickness range, try not to cut on the limit cutting thickness, the normal cutting thickness of the domestic cutting machine is generally the manufacturer labeled the maximum cutting thickness of 60% (example of domestic 100A plasma cutting machine manufacturers label the maximum cutting thickness is generally 32mm, but the general normal cutting thickness is only 15-20mm), as far as possible in this thickness range cutting, you can best protect the cutting mouth;
9. Cut the distance from the cut to the steel plate as far as possible to maintain a constant, generally in 3-8mm or so, too far not only consume too much power, cutting penetration capacity will be reduced, and relatively more consumption of electrodes, so that the electrode service life decline;
Of course, the service life of plasma electrode nozzle is also related to other factors, such as: input voltage, the quality of the electrode itself, plasma cutting machine quality and equipment intact, plasma cutting gun quality, user experience, etc. , but the most important is the above 3 points, these 3 points of attention to the life of the electrode nozzle will be greatly improved.
