We are a private construction company, with a large number of machinery and equipment, construction vehicles, construction steel, etc. all need to be derusted and painted. The sandblasting process has been used, because of the outdoor work in the urban area, due to the environmental protection policy, the regulatory authorities do not let us use sandblasting, helpless to find other methods, I heard that the laser rust removal effect is good, in line with environmental protection, quickly checked it on the Internet, and bought a laser rust removal machine in Shandong, about 40,000 yuan, and later purchased 2 laser rust removal machines, which are different brands. At present, there are 3 laser descaling machines. This year has been used intermittently, there are smooth times, continuous work for 20 hours without stopping, there are also problems every day maintenance time, the business is still more responsible, no matter what problems arise, all help us actively think of solutions, after a year of use, summed up some experience, here to share with you, so as not to take more detours.
Laser derusting machine rust removal is OK, the paint removal efficiency is too low, the thin paint is barely OK, the thick paint can not be removed at all, and it is easy to damage the base metal, if it is specially used to remove rust, and with a six-axis robot to work, the rust removal effect and efficiency are very satisfied. After a long period of summary, for the thick rust layer, the laser derusting machine with a power of 1500 watts removes about 33 square meters of rust per hour on average, and for the floating rust layer, it removes 50-60 square meters of rust per hour.
The performance difference between different brands of laser rust remover is very large, and the service level of merchants varies greatly. The technical level of different businesses varies greatly, some businesses don't understand anything, talk nonsense, and command indiscriminately, and some businesses have deep technical skills, and the advice given is very practical. Here I would like to praise and thank Dunlei laser merchants, Dunlei is a professional laser derusting machine, both product performance and technical support are much higher than the other two merchants.
The main consumables of the laser derusting machine are electricity and gas. For a machine with a power of 1500 watts, the average power consumption is 6-7 kWh per hour, and nitrogen is mainly used for gas. At the beginning, we also used the method of compressed air + filter, but we always burned the lenses, and the protective lenses were replaced many times a day, which not only delayed time, but also made people worry. After communicating with Dunlei merchants, the merchants suggested that we directly use nitrogen, nitrogen is smaller than the welding machine, after using nitrogen, about two days to use a bottle of nitrogen, the life of the protective lens is greatly enhanced, and it is rarely damaged. Here I suggest that if your rust removal environment is harsh and dusty, don't use compressed air, if the environment is better and there is a complete dust treatment system, compressed air is barely OK.
In the process of using the laser derusting machine, after mastering certain skills, the rust removal effect is still very good. For example, the rust layer can be removed in layers, scanned multiple times, or the robotic arm lap rate of 50% can be used to remove the rust, and the rust can be removed cleanly and without damaging the substrate. According to different rust layers and substrates, use different power to remove rust, do not use high power to bombard, so it is easy to damage the substrate, the control of laser power and scanning speed is very important, and these two parameters can achieve a good rust removal effect.
Laser derusting machine must choose professional, unprofessional laser derusting machine is very unstable, every day problems, it is difficult to run for a long time, professional machines and laser welding machine modified machines are not the same to use, the performance is very unstable, the main problem is that it often alarms at high temperatures, and strikes at every turn.
To sum up: 1. The laser derusting machine is still professional for rust removal, but not for paint removal. 2. There is a huge difference in the performance of a professional descaling machine and a modified descaling machine. 3. Rust removal efficiency, power 2000 watts machine, about 33 square meters per hour. 4. Rust removal requires certain skills, practice more and summarize more. 5. Find a professional business, a professional business knows a lot, everything will be, and unprofessional merchants are full of nonsense.