Advantages and disadvantages of reflow soldering

The advantages and disadvantages of reflow and welding are as follows:

1. Advantages of reflow welding

High productivity. As an automatic production process, reflow welding greatly improves the production efficiency and is suitable for the production of high-volume and high-density electronic products.

High welding quality. Reflow welding has good temperature control and thermal cycle characteristics, which helps to improve welding quality and reduce welding defects.

A wide range of applications. Reflow welding is suitable for electronic components of various sizes and shapes, such as patch components, plug-in components, etc.

Save materials. Less solder paste is used in the reflow process, which helps to reduce production costs.

Environmental protection. Reflow soldering using lead-free solder paste, in line with environmental requirements, reduce the impact on the environment.

2. Disadvantages of reflow welding ⊃2;:

The cost is high. The price of reflow furnace itself is higher than that of wave welding furnace, coupled with its high power consumption during operation, which increases the production cost of manufacturers.

The reflow welding machine mainly relies on hot gas flow to heat the solder joint, and the gelatinous solder paste reacts physically under a certain high temperature air flow to achieve SMD welding.

There are many kinds of reflow welding equipment, according to the heating area is divided into integral heating and local heating. The overall heating methods mainly include hot plate heating, gas phase heating, hot air heating and infrared heating. Local heating methods mainly include laser heating, infrared focusing and beam heating.