What Is The Solder Paste

- Jul 01, 2020-

             What is the solder paste


Solder paste is a paste made of alloy powder, paste flux and some additives.Under normal temperature, due to the solder paste has a certain viscosity, electronic components can be paste on the PCB welding plate, the tilt Angle is not too big, no external force under the condition of collision, general component is not moving, when the solder paste is heated to a certain temperature, solder paste alloy powder in the melt flow again, liquid infiltrating the welding end of the components and the PCB solder pads, weld end and welding plate after cooling components are solder interconnection together, form the solder joints are connected to the electrical and mechanical. 

Solder paste is applied on the solder pad by special equipment, which includes:

Automatic printing machine, semi-automatic printing machine, manual printing table, semi-automatic solder paste distributor, etc.