What are the characteristics of SMT patch flux?

inSMTFlux is an essential processing raw material in the surface mount technology (SMT) production process of a factory.SMTThe soldering process in the surface mount technology (SMT) requiresFluxIt plays an important role and will directly affect the quality of surface mount technology (SMT) soldering. Below, Shenzhen JJY Solder Paste Manufacturer will briefly introduce the characteristics of flux to you:

1Remove the oxides on the welding surface,Prevent the re-oxidation of solder and the solder surface during welding and reduce the surface tension of solder;

2The melting point is lower than that of the solder. Before the solder melts, the flux must melt first to fully exert its fluxing effect.

3The diffusion rate of infiltration is faster than that of molten solder, and it is usually required that the diffusion rate be within90%Left or right or90%Above;

4The viscosity and specific gravity are lower than those of the solder. A high viscosity makes wetting and diffusion difficult, and a high specific gravity makes it impossible to cover the surface of the solder.

5No spatter of welding beads is produced during welding,Nor does it produce toxic gas or a strong pungent smell;

6The residue after welding is easy to remove,And it is non-corrosive.Properties such as non-hygroscopicity and non-conductivity;

7Non-stickiness,It doesn't stick to hands after welding,The weld points are not easy to tip.

8It is stable when stored at room temperature.

JJY solder Paste Manufacturer mainly engages in lead-free solder paste.SMTSurface mount solder pasteLEDResearch, development, production and supply of solder pastes, lead-free solder wires, wave soldering rods and other solder solders. For more knowledge about electronic soldering, please contact us. Welcome to interact with us.