Moisture and dust protection technologies are particularly important in PCBA processing. This is not only because moisture and dust can cause physical damage to the circuit board, but also because they may lead to a decline in electrical performance, and even cause serious functional failures.
I. Moisture-proof technology
The impact of the humid environment on the PCBA can not be ignored. Moisture may penetrate into the insulating material of the circuit board, resulting in electrical short circuits, corrosion and other undesirable phenomena. Therefore, in the PCBA processing process, moisture-proof technology is critical.
1. Dry storage
PCBA processing materials and semi-finished products must be kept in a dry environment when stored. Usually, vacuum packaging or moisture-proof bags are used to protect sensitive components. At the same time, the humidity of the warehouse also needs to be strictly controlled, and it is generally recommended to keep it between 30% and 50% to avoid moisture intrusion.
2. Moisture-proof coating
In PCBA processing, in order to further prevent the impact of moisture, you can apply a layer of moisture-proof coating (such as three-proof paint) on the surface of the circuit board. This coating can not only effectively prevent the penetration of moisture, but also protect the board from dust and chemicals.
3. Low Temperature Reflow oven
Low temperature reflow soldering process can effectively reduce the impact of moisture on the PCBA. In the soldering process, the lower temperature can reduce the oxidation of the solder joints, while reducing the impact of moisture generated in the humid environment of water vapor on the soldering quality. This method has been widely used in PCBA processing.
II. Dust prevention technology
Dust is one of the common sources of pollution in PCBA processing. Dust particles may lead to poor connection of solder joints or even short circuit. In order to ensure the quality of PCBA, effective dust prevention measures must be taken.
1. Dust-free workshop
In the PCBA processing plant, the establishment of a clean room is an effective means of controlling dust pollution. The dust-free workshop removes dust particles from the air through air purification system to ensure the cleanliness of the production environment. This not only improves production efficiency, but also reduces the rate of defective products.
2. Dust protection film
For some PCBA products that need to be stored or transported for a long time, you can use dust protection film for encapsulation. This protective film can effectively prevent the intrusion of dust, but also play a certain role in moisture, to further protect the quality of the product.
3. Regular cleaning
Regular cleaning of production equipment and work areas is an important means of preventing the accumulation of dust. Especially in the PCBA processing, any slight dust may lead to product quality problems. Therefore, establishing strict cleaning protocols and ensuring that they are implemented is an important part of dust prevention technology.
Quick facts about NeoDen
1. Established in 2010, 200+ employees, 8000+ Sq.m. factory
2. NeoDen products: Smart series PNP machine, NeoDen K1830, NeoDen4, NeoDen3V, NeoDen7, NeoDen6, TM220A, TM240A, TM245P, reflow oven IN6, IN12, Solder paste printer FP2636, PM3040
3. Successful 10000+ customers across the globe
4. 30+ Global Agents covered in Asia, Europe, America, Oceania and Africa
5. R&D Center: 3 R&D departments with 25+ professional R&D engineers
6. Listed with CE and got 50+ patents
7. 30+ quality control and technical support engineers, 15+ senior international sales, timely customer responding within 8 hours, professional solutions providing within 24 hours