Reflow oven profile is the important tool to reflect quality

Why the the reflow oven profile can reflect the quality?

As to this question, you can find the answer in the following contents.

4.1 Definition of reflow oven profile

Reflow soldering is to achieve a good reflow soldering effect by adjusting the temperature curve of reflow soldering. The reflow soldering temperature curve intuitively reflects the process of temperature change of PCB welding in the reflow soldering furnace.

Reflow oven profile

If reflow soldering is not conducted according to the temperature curve of reflow soldering, it is easy to cause a large number of bad reflow soldering products.

From the temperature curve analysis, when PCB enters the temperature rise zone (dry zone), the solvent and gas in solder paste evaporates,

while the flux in solder paste moistens the pad, component end and pin, solder paste softens, collapses and covers the pad, and isolates the pad, component pin and oxygen gas;

When PCB enters the heat preservation area, the PCB and components will be fully preheated to prevent PCB from entering the welding area, and damaging PCB and components due to too fast temperature rise;

Then, when PCB enters the welding area, the temperature will rise rapidly to make solder paste melt, and liquid solder will wet, diffuse, diffuse or reflow the pad, component end and pin of PCB to form solder joint;

PCB enters into the cooling area to solidify the solder joint and complete the whole reflow welding.

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I.C.T is a manufacturer of SMT machines. It mainly provides customers with SMT production lines including SMT Stencil Printers,  Pick and place machines, Reflow Oven, AOI Machine, Wave Soldering Machine and PCB Handling Machine etc. I.C.T has more than 25 researches on SMT and DIP technology,  for the world Customers provide SMT total solutions. There are successful cases of SMT technical team in Asia, Europe, America, Africa, and Australia.

I.C.T provide SMT solutions at various stages according to the different needs of customers. I.C.T is not only a provider of SMT equipment and technology, but also is the customer's escort in the field of SMT and DIP.

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