There are two basic structures of reflow soldering equipment, one is single-temperature reflow soldering and the other is multi-temperature reflow soldering.
Single-temperature reflow oven, according to the reflow temperature curve control temperature changes with time, The PCB in the oven is static. The advantages of reflow soldering in single temperature zone are small investment and easy temperature tracking setting curve, while the disadvantages are that the temperature changes periodically, so the production cycle is long and energy consumption is high, which is generally suitable for single or small batch production.
Multi-temperature reflow oven is to divide the oven into several temperature zones with different temperatures according to the reflow temperature curve. The PCB uniformly passes through each temperature zone so as to realize each process of preheating, reflow and cooling.
The characteristic of multi-temperature reflow oven is that each temperature area is relatively independent constant temperature control and the control algorithm is relatively simple. Its biggest advantage redeems the efficiency high, ADAPTS the industrial mass continuous production. However, the physical interval between each temperature interval of multi-temperature zone reflow oven makes each temperature interval have a certain temperature difference, which will have a certain thermal impact and thermal stress adverse effect on PCB board. Therefore, more temperature zones can be used to reduce this temperature difference.
Due to the characteristics of "reflow" and "self-positioning" of reflow oven, the requirements of leading SMT procedure are relaxed. Good reflow welding quality, save solder, good product consistency, so that the reflow oven equipment has become the mainstream equipment and key equipment of SMT process.
NeoDen provides a full SMT assembly line solutions, including SMT reflow oven, wave soldering machine, pick and place machine, solder paste printer, Reflow oven, PCB loader, PCB unloader, chip mounter, SMT AOI machine, SMT SPI machine, SMT X-Ray machine, SMT assembly line equipment, PCB production Equipment SMT spare parts, etc any kind SMT machines you may need, please contact us for more information:
Hangzhou NeoDen Technology Co., Ltd
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