At present, the competition on LED stage lights is becoming more and more fierce on the market, and it is also full of all kinds of mixed brands. How to judge the quality of LED stage lights? Below, the small series of Jiuzheng Building Materials Network will tell you about these methods. .
First, strictly test the LED raw materials of the solid crystal station
1. Chip: Mainly manifested by solder pad contamination, chip damage, chip cutting size, chip cutting tilt. Precautionary measures: strict control of incoming inspection
The test found that the problem required the supplier to improve.
2. Bracket: The main performance is that the deviation between the size of the crucible and the C dimension is too large, the bracket is discolored and rusted, and the bracket is deformed. Inadequate feeding is a supplier's problem, and suppliers should be informed to improve and strictly control the feed.
3. Silver Glue: Mainly manifested as poor viscosity of silver glue, the use period is exceeded, storage conditions and thawing conditions are inconsistent with actual standards. For the viscosity of silver glue, it is generally not going to be put into production after engineering evaluation, but it is not that the silver glue is the best. If it is found that there is a bad occurrence, it can be evaluated. Other use periods, storage conditions, thawing conditions, etc. are all artificially controlled. As long as the SOP operation is strictly followed, there are generally not many problems.
Second, reduce adverse human factors
1. Operators violated regulations: For example, if gloves are not worn, silver glue will be taken directly from the refrigerator without being thawed, and the operator will not work according to SOP, or the machine will be unskilled, which will affect the quality of the solid crystal. Preventive measures: The foreman strengthens the management, the operators work according to the SOP, the quality assurance personnel strengthen the audit, strengthen the education and training for the unskilled personnel of the machine, and the official certificate is not allowed to be officially employed.
2. Maintenance personnel improperly adjusted: The countermeasure is to improve the technical level. For example, the crystal height, the solid crystal height, the thimble height, the setting of some delay time, the motor parameters, the setting of the table parameters, etc., are all adjusted to the optimal state according to the standard.
Third, to ensure that there will be no machine platform, the main performance is the machine parts or mechanical structure, the recognition of the system and other defects caused by the impact on the quality of the solid crystal. Make sure that the functions of the machine are normal.
Fourth, the implementation of the correct tuning method
1. The spot is not right: Counter----Re-calibrate the spot to ensure three points and one line.
2. Improper adjustment of various parameters: for example: pickuplevel, bondlevel, ejectorlevel delay time, motor parameters, etc., can be added a few more steps and more steps can be done, but the results are completely different. The same is the height of the thimble. When the chip can't be sucked, some people make the parameters, but they don't consider whether the thimble is blunt or broken. As a result, the chip is damaged and the corner is offset. The matching of the delay time and the motor parameters is also the same. If the matching is not good, the welding arm movement will be different, which also causes abnormal quality.
3. Improper setting of binary value: countermeasures----reset binarization.
4. The machine adjustment standards are inconsistent. For example, when adjusting the dispensing glue, the dispensing spring is pressed to death, and the point lighting engineering rubber head has no elasticity at all. As a result, it is useless to adjust the parameters. Another example is the adjustment of the claws. If the hooking and popping displacements of the upper and lower hooks are not adjusted according to the standard, it is easy to cause the running materials and the bracket deformation. Another example is the pressure of the welding arm. If it is not adjusted according to the standard, it will also affect the quality of the solid crystal, and it will not be adjusted well with the parameters.
Fifth, master the process
1. Whether the cleaning of the silver glue tank is cleaned regularly.
2. Whether the choice of silver glue is reasonable.
3. Whether the operator wears gloves or masks.
4. Baking conditions, time and temperature of the solid crystal material.
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