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If there is excessive solder during production, wave soldering is the preferred method for processing. When operating wave soldering, pay attention to the following:
The wave crest surface is covered by a layer of oxide scale, which remains static along the entire length of the solder wave. During the wave soldering process, as the PCB touches the front surface of the tin wave, it breaks the oxide scale and the tin wave in front of the PCB is not folded, indicating that the entire oxide skin moves at the same speed as the PCBs.
To avoid poor wave soldering, you can use the following methods: Use components/PCBs with good solderability, increase soldering activity, raise the preheating temperature of the PCBA, enhance the wettability of the pad, increase the temperature of the solder, remove harmful impurities, reduce the cohesion of the solder to facilitate the separation of the solder between the two solder joints.
PCBA Wave Soldering Operation
Common preheating methods in wave soldering machines include: air convection heating, infrared heater heating, and heating by a combination of hot air and radiation.
An analysis of the wave soldering process curve involves the following parameters: Wetting time, which is the time when solder joints start wetting after contacting the solder; residence time, which is the time from contacting the crest surface to leaving the crest surface of a solder joint on the PCB. Preheating temperature refers to the temperature reached before the PCB and the crest surface contact, and soldering temperature refers to the actual high soldering temperature.
The important welding parameters usually involve a temperature of 50°C to 60°C higher than the melting point of the solder (183°C), indicating that the temperature of the soldering furnace is generally lower than the temperature of the soldering point of the PCB during actual operation.
Why Choose China PCBA Supplier KSPCBA as Your PCBA Wave Soldering Operation Manufacturer?
– Experienced and skilled team
– State-of-the-art equipment
– Strict quality control
– Excellent customer service
– Competitive price
Please send Email to kspcba@c-alley.com or call us through +86 13828766801 Or submit your inquiry by online form. Please fill out below form and attach your manufacturing files( PCB Gerber files and BOM List) if need quotation. We will contact you shortly.
+86 13828766801
kspcba@c-alley.com
https://www.kingshengpcba.com/
2/F, Building 6, Tangtou 3rd Industrial Zone, Tangtou Community, Shiyan Town, Baoan District, Shenzhen, China, 518108
We would also like to thank our customers for their trust and support. The company's outstanding achievements are mainly due to the loyalty of our customers, which also encourages and spurs our company to forge ahead.
