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Laser cutting metal plate with two major technical difficulties
by：Transon
2020-10-31
Cutting edge volatile combustion, which causes the difficulty in cutting fiber laser cutting machine can't cut more than 10 mm thickness steel plate, this is mainly related to the stability of the cutting front combustion temperature.
A thick steel plate in the cutting process because of the cutting nozzle of oxygen flow continuous cooling cutting front temperature, resulting in a decline in frontier stability;
On the other hand the combustion process of iron oxide will also hinder the diffusion of oxygen, resulting in a decline in frontier combustion temperature.
When using traditional convergent laser cutting, due to the laser radiation area is also a strong burning effect and the oxygen concentration decreased, it may force cutting edge volatility changes in temperature, causing the incision quality fluctuates with the temperature of cutting edge.
Thick plate easy to hang slag, influence the cutting quality of traditional metal cutting equipment cutting 10 mm thick steel plate, mainly because of the increase of the thickness of the steel plate is easy to cause reduced oxygen purity of incision, which affect the temperature of the incision.
People who have studied the cutting principle of all know, the oxygen purity and iron oxygen combustion rate into the same direction.
Fell when the purity of oxygen and iron oxide in burning rate will decline, it is to cause a decline in the nozzle of oxygen burning energy, cut surface at the same time can also lead to increased levels of iron liquid layer hang slag.
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