What are the key links of quality control in the production process of LCD screen power board?
Publish Time: 2024-08-09
There are many key links of quality control in the production process of LCD screen power board to ensure its performance and reliability.
First of all, the procurement of raw materials is the basic link of quality control. For electronic components such as resistors, capacitors, inductors, integrated circuits, etc., it is necessary to choose suppliers with reliable quality and compliance with standards. Strictly inspect the specifications, parameters and quality of raw materials to ensure that they can meet the design requirements of the power board. For example, the capacity and withstand voltage of the capacitor must be accurate, otherwise it may affect the filtering effect and stability of the power board.
In terms of production process, welding quality is crucial. It is necessary to ensure that the solder joints are uniform and firm, without false solder joints, leaking solder joints, etc. Advanced welding equipment and processes are used to accurately control parameters such as welding temperature and time. At the same time, the wiring layout of the circuit board should be reasonable to avoid interference and short circuit risks between lines. During the assembly process, it is necessary to ensure that each component is installed correctly and firmly to prevent problems such as poor contact caused by looseness.
The testing link is the core of quality control. Strict electrical performance tests should be carried out, including voltage output stability tests, current load capacity tests, etc. For example, ensure that the power board can output stable voltage under different load conditions to meet the normal working requirements of the LCD screen. Insulation resistance test is also required to ensure the safety of the power board and prevent dangerous situations such as leakage. In addition, aging test is required to simulate the situation of the power board under long-term operation to detect potential faults and quality risks in advance.
The professional quality of quality inspectors should not be ignored. They need to undergo professional training, be familiar with quality standards and testing methods, and be able to accurately judge whether the product is qualified. At the same time, a complete quality traceability system should be established. Once quality problems are found, they can be quickly traced back to the specific links of production and the relevant responsible persons, and corrective measures can be taken in time. In short, the quality of LCD screen power board can be effectively guaranteed by controlling key links such as raw materials, production processes, testing and personnel quality.
