How to Set the Temperature for Wave Soldering and What Are the Soldering Temperature Standards?
4 min
- Temperature for Wave Soldering
- Factors
- Soldering Temperature Standards
- Conclusion
Wave soldering is a process used for soldering electronic components by inserting them into the holes on a Printed Circuit Board (PCB) and securing the components to the board using a molten solder wave generated by a wave soldering machine. Temperature is a crucial parameter during the wave soldering process, as it directly affects the quality and efficiency of soldering. Therefore, setting the temperature correctly for wave soldering is essential.
Temperature for Wave Soldering
Wave soldering machines typically employ radiant heating for preheating, with the most commonly used methods being forced hot air convection, electric hotplate convection, electric heating rods, and infrared heating. Among these methods, forced hot air convection is generally considered the most effective method for heat transfer in most processes. After preheating, the PCB is soldered with either a single wave (λ wave) or dual waves (turbulent wave and λ wave). For through-hole components, a single wave is usually sufficient. When the PCB enters the wave, the direction of solder flow is opposite to the board's movement, creating eddies around component pins. This acts like a washing action, removing residues of flux and oxide films and forming proper wetting as the solder reaches its wetting temperature.
Factors
Setting the temperature for wave soldering involves considering multiple factors, including the solder's melting point, the material of the PCB, and the type of components being soldered. Generally, the temperature for wave soldering should be set near the melting point of the solder and slightly higher to ensure complete melting and good wetting on the soldering surface. However, the temperature should not be too high to avoid damage to the PCB and components.
Usually, the temperature setting for wave soldering needs to be adjusted based on the type of solder used and specific equipment parameters. When adjusting the temperature, it's advisable to gradually increase the temperature while continuously observing the color changes on the soldering surface and recording the temperature variations. In general, the temperature of the soldering surface should fall within the range of 240°C to 260°C, with a maximum temperature not exceeding 280°C.
In addition to temperature, the soldering time is also a critical factor affecting soldering quality. Too short a soldering time can result in incomplete soldering, while excessive time may damage components. Therefore, adjustments should be made according to specific circumstances to achieve the optimal soldering effect.
To sum up, setting the temperature for wave soldering involves considering various factors, including the type of solder, PCB material, and component types. When adjusting the temperature, it's important to gradually increase it while monitoring the color changes on the soldering surface and recording temperature variations to achieve the best soldering results.
Soldering Temperature Standards
Soldering temperature standards refer to the temperature range that should be achieved during the soldering process. For wave soldering, the soldering temperature standard typically falls in the range of 240°C to 260°C. Within this temperature range, the solder, when molten, can flow adequately and wet the soldering surface properly, resulting in stable solder joints.
In addition to the temperature range, soldering temperature standards also need to consider other environmental factors such as humidity and airflow. High humidity and airflow can impact soldering effectiveness. Therefore, adjustments should be made based on the specific production environment to ensure soldering quality and efficiency.
Conclusion
In summary, soldering temperature standards are of paramount importance for the quality and efficiency of wave soldering. Adjustments should be made based on the specific production conditions and environment to ensure soldering quality and efficiency. Regular maintenance and upkeep of wave soldering equipment are also essential to maintain stability and production efficiency. Wave soldering has a history dating back to 1956 when the British company Fry's Metal introduced the concept of printed circuit board wave soldering. It revolutionized the soldering process from manual soldering with soldering irons to automated, large-scale, and highly efficient soldering by machines. Wave soldering offers advantages such as speed, accuracy, and efficiency. It has made significant contributions to reducing soldering defects, improving the reliability of electronic products, lowering production costs, reducing the labor intensity of workers, and increasing production efficiency.
Popular Articles
• Common PCB Assembly Methods and Soldering Techniques Explained
• Reflow Soldering: Everything You Need to Know
• SMT Assembly Process Explained and Equipment Used: A Step-by-Step Guide to PCBA Manufacturing
• What Is BGA Void? Causes, IPC Limits, and Solutions
• SMD Soldering Tools You Need: Complete Guide from Beginner to Pro
Keep Learning
Common PCB Assembly Methods and Soldering Techniques Explained
Whether you’re designing your first prototype or scaling up to production, understanding PCB assembly methods and soldering techniques is crucial to achieving reliable, high-performance circuit boards. Modern PCBA primarily relies on Surface Mount Technology (SMT) and Through-Hole Technology (THT)—each offering unique advantages for component density, durability, and manufacturability. In this guide, we’ll break down the major PCB assembly methods, key soldering techniques such as reflow and wave sold......
Reflow Soldering: Everything You Need to Know
Reflow soldering is a crucial process in today's Surface Mount Technology (SMT), enabling the secure mounting of parts ranging from the smallest 0201 passives to complex, high-density Ball Grid Arrays (BGAs). With the ongoing reduction in component sizes, accurate heat management has become a crucial requirement for reliability, which means the process must be error-free. This engineering guide dissects the thermodynamics, fluid dynamics, and metallurgy behind the process. We will cover the four criti......
SMT Assembly Process Explained and Equipment Used: A Step-by-Step Guide to PCBA Manufacturing
Today's high-performance electronics, from pocket-sized smartphones and IoT sensors to sophisticated industrial control systems, are made possible by a manufacturing miracle: Surface Mount Technology (SMT). SMT is the backbone of electronics manufacturing, allowing us to have the incredible component density and miniaturization. A bare circuit board is simply a substrate. The process of transforming it into a functional electronic circuit is known as Printed Circuit Board Assembly. This article outlin......
What Is BGA Void? Causes, IPC Limits, and Solutions
In the high-stakes world of SMT (Surface Mount Technology), the Ball Grid Array (BGA) is a critical component for modern high-density electronics. However, it introduces a complex challenge: the BGA void. While analysis is important, the ultimate goal for any PCB designer or manufacturer is prevention. Unlike visible solder joints, BGA connections are hidden. A void - a gas bubble trapped within the hardened solder - can compromise thermal conductivity and mechanical integrity. At JLCPCB, we prioritiz......
SMD Soldering Tools You Need: Complete Guide from Beginner to Pro
Surface Mount Devices (SMDs) are essential components in modern electronic devices, including smartphones, tablets, and IoT systems. Unlike older through-hole methods, where components were inserted through drilled PCB holes, soldering SMD components manually can be challenging, especially for beginners. The extremely small sizes and tight spacing on modern PCBs require high precision, and achieving reliable solder joints often depends on using the best SMD soldering tools. Common issues arising from ......
IC Package Types Explained: A Practical Guide for PCB Designers
Walk into any electronics lab, and you'll hear the same debate: "Which IC package should I use here?" It sounds like a simple question until you realise the answer determines your PCB footprint, thermal headroom, assembly process, rework feasibility, and field reliability - all at once. This guide breaks down every major IC package type used in modern PCB design, helping you understand the differences between common IC package types in plain engineering language so you can make the right call from the......