What are the reasons for the clogging of the laser head nozzle?
When using the laser head, the problem of nozzle clogging will be encountered, which will result in the inability to use the laser head normally. Now, what are the reasons for the clogging of the laser head nozzle?
1. Improper selection of nozzles or poor maintenance
It is easy to cause contamination or damage to the nozzle, or due to the poor roundness of the nozzle opening or local blockage caused by hot metal splashing, eddy currents will be formed in the nozzle, resulting in significantly poor cutting performance. Sometimes, the nozzle orifice is not coaxial with the focused beam, causing the beam to cut the nozzle edge, which will also affect the quality of the cutting edge, increase the width of the cutting edge and dislocate the cutting size.
2. The temperature is too low
If the nozzle temperature is low, it may be that the nozzle loses heat in contact with the cold mold for a long time during fixed feeding, or the material temperature is low due to insufficient heating of the nozzle heating ring or poor contact, which may block the feeding channel of the mold.
3. The inner hole of the nozzle is not suitable for
If the nozzle is too small, the specific volume of the strip will increase due to the small flow diameter, which is easy to cool, block the feed channel or consume the injection pressure; if the nozzle is too large, the flow cross-sectional area will be large, and the pressure per unit area of the plastic into the mold will be low. Creates a low-power situation.
4. do not clean for a long time
The nozzle is the part at the end of the laser head. If it is not cleaned for a long time, it will accumulate ash layer, and the slag will be in the nozzle mouth, which will cause blockage and the laser head will not be able to emit light and work normally.
