According to the pulse heating principle of the hot press, due to the special design of the welding head surface, the resistance of the welding surface is very small, and the current will pass through the section with the lowest resistance. By constantly changing the voltage and adjusting the current level, the welding head can quickly heat up.

Hot press is also called bonding machine. According to different hot pressing media, it can be divided into tin soldering, ACF (opposite conductive tape), ACP (opposite conductive glue) and TBF (hot melt adhesive film). It is applicable to the connection of FPC (flexible circuit board), HSC (zebra paper), TAB with LCD and PCB.