![]() When the PCB enters the reflow zone, the temperature rises rapidly so that the solder paste reaches a molten state. The working principle of the Lyra Reflow Oven soldering zone? It should be noted that all components on the SMA should have the same temperature at the end of this section, otherwise, entering the reflow section will cause various bad soldering phenomena due to the uneven temperature of each part.ģ. At the end of the heat preservation section, the oxides on the pads, solder balls and component pins are removed under the action of the flux, and the temperature of the entire circuit board is also balanced. Give enough time in this area to make the temperature of the larger component catch up with the smaller component, and to ensure that the flux in the Lyra Reflow Oven solder paste is fully volatilized. The main purpose of the Lyra Reflow Oven heat preservation stage is to stabilize the temperature of each element in the Lyra Reflow Oven furnace and minimize the temperature difference. The working principle of the Lyra Reflow Oven insulation zone: Due to the faster heating rate, the temperature difference in the reflow furnace at the back stage of the Lyra Reflow Oven temperature zone is relatively large.Ģ. Affect the soldering quality of Lyra Reflow Oven. If it is too slow, the solvent will not evaporate sufficiently. If it is too fast, thermal shock will occur, and the circuit board and components may be damaged. The goal of the Lyra Reflow Oven is to heat the PCB at room temperature as soon as possible, but the heating rate must be controlled within an appropriate range. Preheating is to activate the solder paste, and to avoid the rapid high temperature heating during immersion in the tin, which is a heating action performed to cause defective parts. The working principle of the Lyra Reflow Oven preheating zone: ![]() Reflow Oven is a soft soldering that realizes the mechanical and electrical connection between the solder ends of surface mount components or the pins and the printed board pads by remelting the solder paste pre-distributed on the printed board pads. Reflow Oven is divided into four temperature zones in total: preheating zone heating zone melting soldering zone cooling zone. For Lyra reflow oven as an example, let's talk about the working principle of these four temperature zones.ġ.
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