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Optical glass cleaning is based on different reasons for the contamination of the glass surface, and different cleaning processes are used to select different optical glass cleaning agents. The problems often occurred in the production process generally include the following aspects: first, the working environment and equipment, second, the process conditions, third, the operating conditions, and fourth, the reasons for the cleaning agent itself. The following is the production of Dongguan Mingkang Industrial Cleaning Engineer. The reason is generally the working environment and equipment problems: the factory can be well set up before it is put into production, which is difficult to change. The working place is a clean room, and it is equipped with air conditioning. There are about ten slots before and after the cleaning equipment. Two to three washing tanks, four or more countercurrent rinsing tanks, slow-drying tanks, baking tanks, cleaning tanks and rinsing tanks are equipped with ultrasonic waves of adjustable power. Use reverse osmosis equipment to make pure water.
Operating conditions are generally fixed with the cleaning process conditions set. Different cleaning processes set different operating conditions, which is also well controlled. For example, temperature, cleaning time, frequency of changing the drug, etc.
It is difficult to set the process conditions: this is often adjusted due to the dirt on the glass surface. For example, cleaning the white glass and silk screen glass, using different cleaning lines or separate cleaning tanks to clean, adjust the cleaning time, adjust the concentration and temperature of the tank. There are many factors that can be adjusted. This requires our field management personnel to have good experience in grasping the control. However, some factories often do not have management problems. There are many unnecessary production problems in this area, which requires our managers. Strengthen training, but often our managers are both managers and employees, which has a certain negative impact on normal production.
The process of glass cleaning is:
The main problems in window glass and mobile phone glass cleaning are white spots and watermarks. (It should be noted that this is a production operation in accordance with the normal process flow, and the operation must be standardized). If it is only a watermark problem, you need to check the pure water system. The pure water conductivity of the whole line should be below 2UM.
The white point problem is more complicated, such as the concentration of the medicine tank, the length of use, the temperature, the cleaning time, etc., especially after the simple cleaning of the white glass after the flat grinding, it needs to be transported to the cleaning tank in time, and stay in the middle. Do not use too much time. It is better to soak it in pure water for a period of time before cleaning. Some of the deinked rework products have been left for too long. The dust, water marks and oil stains on the glass surface have dried up. These products need to be specially treated before cleaning. In order to thoroughly clean the surface. Generally speaking, using a good potion, increasing the temperature, prolonging the cleaning time, and strengthening the ultrasonic frequency can solve the white point problem. For silk-screened glass, the surface of the glass with the suction pad and white spots should be given special attention when cleaning. First, the screen printing ink can not be edged, peeled off, discolored, etc. Second, the mirrored silver letters on the top cannot be Defective, falling. These two special places require special attention when cleaning. If you follow the above process to clean, the effect after cleaning will be very poor, the yield is very low, and remedial measures must be taken at this time. For example, it is wiped with an organic solvent or a calcium carbonate powder or a polishing powder. This workload is very large and may not be able to wipe clean, the method is not feasible. For this type of product, if it is immersed in the syrup for a period of time, and then the above cleaning method is used, the cleaning quality is greatly improved, and unnecessary wiping work is reduced. The soaking solution GX-10 developed by the company is soaked before glass cleaning, which can solve the white point problem in glass cleaning.
As for other problems in production, such as scratches, chipping, etc., you need to check one by one from front to back, from the start of the material, to the process of profiling, flat grinding, polishing, tempering, silk screen printing, etc. Do not make more discussion.