Will A Heat Gun Melt Solder
The 280C temperature may be a bit on the low side which can take longer to heat the pads to melting temperature.
Will a heat gun melt solder. Then fire the heat gun onto the solder paste holding the component with tweezers or another tool that wont catch fire until it becomes shiny. Its most suitable for working with soft solder with a melting point below 400C. The connections are very solid.
A MAPP gas burner also a HD item should melt the silver solder. Specialty tool either the electric type that is use for electric or electronic work or the externally heated type often used for copper flashing on roofing. But even then it is more reliable to solder the wires and then slide heat shrink over it.
2nd part of your question is the why you are using the heatgun. APPLY HEAT Position the wires into the solder butt connector Use a heat gun at a low setting while continuously rotating the connector Pro tip. It uses an electric current to heat the device at a temperature at which the solder melts.
Most parts can stand excessive heat for short periods. In addition hot - air stations are typically non-contact enabling you to avoid damage to other parts of the circuit as you work. Yes it does melt solder.
A heat gun can usually be used to melt solder. Special nozzles are available for most models of heat gun for specific uses other than stripping paint. The key to this is the design of the GPU which is a flip chip design.
It has 2 modes 572F and 1112F. BTW a MAPP-oxygen torch from where else HD will burn the copper pipe off. Once the component is in place leave it on the board to cool for at least 10 minutes.