UV optical fixing machine should be disassembled and installed on the curing machine when it is installed and debugged, and the lamp tube is replaced and maintained. Because the UV curer is a high temperature, high voltage, and more dangerous equipment, it is very important to disassemble and disassemble the equipment correctly, otherwise it will lead to a major accident.
One, UV lamp tube disassembly and disassembly
Water transport in UV must be removed before the UV tube wrapped in sponge middle box cut a hole, the hole diameter is smaller than the diameter of the tube. A sponge is placed on the tube about 10cm every time. Notice that the sponge should not be attached to it, so that when the position of the box is in force, the external force will be absorbed by the sponge and will not be sent to other locations.
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UV lamp installed in the lamp is not loose locking, this is because the UV lamp into the high temperature condition from start working temperature 700 degrees C, because the UV lamp has a thermal expansion, cracking phenomenon will appear tight joca. In addition, the UV lampshade is generally aluminum products, the coefficient of thermal expansion is relatively large, in the process of starting the lamp, the lamp will be extruded. General UV lamp UV lamp holder to stay active margin, according to the different structure of UV lamp shade fixed left margin is also different.
Because the thermal expansion coefficient of aluminum is much larger than that of quartz tube, the distance between the ends of the lampshade is much larger than that of the lamp tube, leaving only a certain space for the lamp. However, the diameter of the opening on the end plate of the lampshade is larger than that of the tube end diameter 1.5-2mm, which is due to the fact that the lampshade not only elongate during heating, but also distort and distort the concentricity of the holes at both ends of the lampshade.
The lamp head stuck in the card, the card head can be fixed on the lampshade at both ends of the board, the support can be fixed on the outside of the lampshade. For example, the design of a lamp shade can be rotated, and the lamp tube does not turn to turn the lampshade. In this case, the head of the lamp should be disjointed with the lampshade and fixed on the base. The UV lamp is swinging on the deck. If the UV equipment is moved or transported without dismantling the lamp, the lamp will be shattered. This phenomenon often occurs.
A few points should be paid attention when installing the UV lamp. Wipe the lamp clean with ethanol before installation, and then put on a clean glove to hold the lamp. The lamp holder is arranged on the tube through the hole cloth pad, don't let the lamp into the metal end plate and let the cloth rubbed into the tube. Tube installation, hand hold lamp on the deck to place a few look under the lamp is free, so the installation of lighting will not appear cracking phenomenon.
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Sometimes check lamp, UV lamp will be water removed to observe found traces of lines of the lamp tube wall, and wipe off. This is because no gloves to install the lamp, hand sweat and dirt stick in the tube by high temperature carbonization sintering on quartz crystal. When it is serious, there is a leak in the spot where the lamp pipe is discarded. Another phenomenon is the appearance of a black ribbon along the length of the lamp wall. This is because the cooling air is running along the route while the lamp is running, and the wind outside the lamp box is just blowing to the strip of the lamp tube. The external wind has dust and the paper edge has paper hair. These substances enter the lamp house under the wind and enter the lamp tube from the lamp side, and then go round the lamp tube from the top of the lamp tube to the fan channel. The dust hit the lamp lit by high temperature deposition in the tube, resulting in black or black lamp.
Always scrub the lamp tube, the time interval of scrubbing should be based on the specific conditions. One is to consider the degree of air cleanliness. The dust in the north is large and the south is better. Two is the edge of paper edge hair loss is also different, plastic film does not drop hair, high density paper, less hair, low density, short fiber paper hair loss serious. After a black or black stripe is found, the intensity of UV irradiated from this strip is very serious. As long as the tube is turned to one angle, the transparent part will not affect the use of the lamp.
Two, the maintenance of the reflector
The inner surface of the reflector is processed according to the optical level. However, due to its high temperature and impurity environment, the surface roughness will be increased after a period of time. Some shade reflecting layer is polished aluminium activities, through appropriate for a _. Some shade of the reflecting layer is in the inner surface of the lamp shade with a polishing machine polishing can not be changed, can be removed to use more deep oxidation polishing, sand holes can only be replaced.