Abstract: The present invention provides a web call method so that when a user uses a personal computer to make an Internet call, the user just inputs a web address through browser instead of key in telephone number by keyboard.

Abstract: A trough device in a soldering furnace comprises a motor, a soldering pot, support device, a trough part and transmission device. The support device connects with a fixing base of the motor via a micro adjustment device and an inclinometer for adjusting an inclining angle of the soldering pot and informing the adjusted inclining angle. A guidance part with double layer structure is located at the soldering pot and can receive the solder oxide residue falling down from the circuit board or spattered out from the soldering pot to prevent the solder oxide residue from flowing back to the trough part. The transmission device further comprises a transmission shaft, a shaft hub, a fan blade part and fixing plate assembly. The shaft hub surrounds the transmission shaft with bearings being disposed between the shaft hub and the transmission shaft. The fixing plate assembly is arranged at the lower end of the shaft hub and engages with the soldering pot by way of screw threads.

Abstract: A trough device in a soldering furnace comprises a motor, a soldering pot, support device, a trough part and transmission device. The support device connects with a fixing base of the motor via a micro adjustment device and an inclinometer for adjusting an inclining angle of the soldering pot and informing the adjusted inclining angle. A guidance part with double layer structure is located at the soldering pot and can receive the solder oxide residue falling down from the circuit board or spattered out from the soldering pot to prevent the solder oxide residue from flowing back to the trough part. The transmission device further comprises a transmission shaft, a shaft hub, a fan blade part and fixing plate assembly. The shaft hub surrounds the transmission shaft with bearings being disposed between the shaft hub and the transmission shaft. The fixing plate assembly is arranged at the lower end of the shaft hub and engages with the soldering pot by way of screw threads.