Suzhou million Belts and billion Roads Electronic Technology Co,.Ltd 
Advantages of Selective Wave Soldering
Release time：2024-11-18 15:27:13 Hit：309
High Welding Quality
1.Precise Control of Welding Parameters: It is possible to precisely set parameters such as the amount of flux spraying, welding time, and wave height for each solder joint according to the characteristics of each joint. This enables each solder joint to be welded under the optimal welding conditions, significantly reducing the welding defect rate and even making it possible to achieve zero-defect welding of through-hole components.
2.Avoidance of Thermal Shock Defects: During traditional wave soldering, the entire circuit board experiences the process of heating from room temperature to a high temperature and then cooling. Thermal shock causes shear stress due to the different coefficients of thermal expansion and contraction of different materials on the circuit board, resulting in defects such as delamination and microcracks in components like BGAs. However, selective wave soldering only targets specific points for welding and does not cause thermal shock to the entire circuit board, thus avoiding such thermal shock defects.
3.Good Solder Penetration Rate: Its welding effect is significantly better than the through-hole filling rate in surface mount technology. It can also meet the good solder penetration requirements for high heat capacity and multilayer circuit boards, almost achieving 100% filling.
Strong Welding Flexibility
1.Ability to Avoid Sensitive Components: By using programmable and movable small solder pots and flexible and diverse welding nozzles, it is possible to set programs to avoid certain parts such as fixed screws and stiffeners on the B side of the PCB, preventing them from coming into contact with high-temperature solder and getting damaged. There is no need to use customized welding trays.
2.Adaptability to Multiple Products: It is highly suitable for the production mode of multiple products in small batches. It has high adaptability to production lines where product types change frequently. It has broad application prospects in industries such as aerospace, military, etc., where high reliability of electronic products is required, and there are many product types with small batches.
Savings in Materials and Energy
1.Flux Savings: The selective flux spraying system only sprays flux on the areas that need to be welded. Compared with the full-board spraying in wave soldering, the amount of flux used is greatly reduced, and at the same time, contamination of non-welding areas on the circuit board is avoided.
2.Solder Savings: Since it is a point-by-point welding, it does not require the use of a large amount of solder like traditional wave soldering, significantly reducing the generation of solder dross and the consumption of solder.
3.Low Energy Consumption: The energy consumption of selective wave soldering equipment is mainly concentrated on the local heating of the welding nozzles and the drive system. Compared with the large solder pot heating in traditional wave soldering, the energy consumption is lower.
High Production Efficiency
1.Batch Welding Capacity: Different specifications of welding nozzles can be used for batch welding by drag soldering. The welding speed is relatively fast and can meet the needs of large-scale production of electronic products. Usually, the welding efficiency is dozens of times higher than that of manual welding.
2.Convenient Programming: When welding the second board of the same product, the previously stored welding program can be directly called for welding, saving programming time and improving production efficiency.
High Cleanliness
Selective wave soldering only sprays flux and welds on the points that need to be welded, greatly improving the cleanliness of the circuit board and significantly reducing the amount of ionic contamination. This helps to improve the reliability and stability of electronic products and reduce problems such as corrosion of the circuit board and solder joints caused by ionic contamination.
Strong Process Adaptability
For some special components, such as heat-sensitive components and fine-spacing components, selective wave soldering can provide more gentle and precise welding conditions, avoiding damage to these components due to excessive welding temperature or mechanical stress.
1.Precise Control of Welding Parameters: It is possible to precisely set parameters such as the amount of flux spraying, welding time, and wave height for each solder joint according to the characteristics of each joint. This enables each solder joint to be welded under the optimal welding conditions, significantly reducing the welding defect rate and even making it possible to achieve zero-defect welding of through-hole components.
2.Avoidance of Thermal Shock Defects: During traditional wave soldering, the entire circuit board experiences the process of heating from room temperature to a high temperature and then cooling. Thermal shock causes shear stress due to the different coefficients of thermal expansion and contraction of different materials on the circuit board, resulting in defects such as delamination and microcracks in components like BGAs. However, selective wave soldering only targets specific points for welding and does not cause thermal shock to the entire circuit board, thus avoiding such thermal shock defects.
3.Good Solder Penetration Rate: Its welding effect is significantly better than the through-hole filling rate in surface mount technology. It can also meet the good solder penetration requirements for high heat capacity and multilayer circuit boards, almost achieving 100% filling.
Strong Welding Flexibility
1.Ability to Avoid Sensitive Components: By using programmable and movable small solder pots and flexible and diverse welding nozzles, it is possible to set programs to avoid certain parts such as fixed screws and stiffeners on the B side of the PCB, preventing them from coming into contact with high-temperature solder and getting damaged. There is no need to use customized welding trays.
2.Adaptability to Multiple Products: It is highly suitable for the production mode of multiple products in small batches. It has high adaptability to production lines where product types change frequently. It has broad application prospects in industries such as aerospace, military, etc., where high reliability of electronic products is required, and there are many product types with small batches.
Savings in Materials and Energy
1.Flux Savings: The selective flux spraying system only sprays flux on the areas that need to be welded. Compared with the full-board spraying in wave soldering, the amount of flux used is greatly reduced, and at the same time, contamination of non-welding areas on the circuit board is avoided.
2.Solder Savings: Since it is a point-by-point welding, it does not require the use of a large amount of solder like traditional wave soldering, significantly reducing the generation of solder dross and the consumption of solder.
3.Low Energy Consumption: The energy consumption of selective wave soldering equipment is mainly concentrated on the local heating of the welding nozzles and the drive system. Compared with the large solder pot heating in traditional wave soldering, the energy consumption is lower.
High Production Efficiency
1.Batch Welding Capacity: Different specifications of welding nozzles can be used for batch welding by drag soldering. The welding speed is relatively fast and can meet the needs of large-scale production of electronic products. Usually, the welding efficiency is dozens of times higher than that of manual welding.
2.Convenient Programming: When welding the second board of the same product, the previously stored welding program can be directly called for welding, saving programming time and improving production efficiency.
High Cleanliness
Selective wave soldering only sprays flux and welds on the points that need to be welded, greatly improving the cleanliness of the circuit board and significantly reducing the amount of ionic contamination. This helps to improve the reliability and stability of electronic products and reduce problems such as corrosion of the circuit board and solder joints caused by ionic contamination.
Strong Process Adaptability
For some special components, such as heat-sensitive components and fine-spacing components, selective wave soldering can provide more gentle and precise welding conditions, avoiding damage to these components due to excessive welding temperature or mechanical stress.
