Wuhan Questt Asia Technology Co., Ltd
Address:
A7-101, Hangyu building, Wuhan University Sci & Tech Park, East Lake High-tech Dev. Zone, Wuhan, Hubei, China
Email:[email protected]
14
German Technology | Made in China
(2) Precautions and maintenance
As the machine is highly precise equipment whose discharging features the high pulse
voltage and charging features the large capacity, and the laser focusing energy is highly
centralized, the operators must obtain professional knowledge and skills before they work on
the machine.
A. Optical resonant cavity
The two medium diaphragms of optical resonant cavity are absolutely parallel to the laser
bar’s end face, touching or random adjustment is not allowed. Do not open the outer hood of
the laser randomly and keep the optics surface highly clean. Otherwise, the high-energy
laser will damage the diaphragm layer. When the laser output energy is lowered down, the
operator should first check whether the medium diaphragm is clean. If any dirt, he can use
lens paper or cotton wool moistened by the cleaning agent (liquid mixture with ethanol
absolute and ethanol respectively occupying 50%, the same when mentioned in the
following part) to clean it gently. Then check the resonant cavity to see if it is misadjusted.
B. Cooling system
The laser has one water inlet pipe and one outlet pipe, respectively connected to the cooling
channels of the lamp and bar. Unsmooth water flow at any part will cause large loss. Each
time when the equipment is assembled, the operator should check the water flow at each
path and make sure no fault exists before starting up the laser.
C. Xenon lamp replacement
The average service time of the pulse xenon lamp is 10
8
times of blinking if it works under its
rated power and belongs to the consumptive pieces. To ensure the normal performance of
the machine, the lamp must be replaced when it has reached its rated blinking times (about
10
8
times) and the energy becomes low.
In cases that the xenon lamp is damaged or its service time is shorted due to other causes
(for example, it can’t pre-illuminate or no energy output is available when the voltage is
increased to 500V), the xenon lamp should also be replaced.
As the strength of the sealing at the lamp’s two ends is relatively low and apt to being
damaged, special caution should be offered when substituting the lamp. The following
procedures should be followed:
a. Turn off the machine, cut off the water supply and discharge the remaining electricity on
the energy-storage capacitor;
b. Remove the electrodes of lamp;
c. Remove the gland of lamp, carefully pull out the lamp from the side of the full reflector;
d. Use cotton moistened by cleaning agent to clean the sleeving;
e. Check to see if the appearance, size and other aspects of the new lamp is conforming;
f. Install the new lamp into the chamber, press the gland tight and mount the electrodes;
g. Connect to the water supply and check the sealing of each part to see if they are reliable;
h. Turn on the main power to check whether the lamp can discharge normally;
