Are there any requirements for the correct way to use lead-free solder wire materials that do not require cleaning?

Nowadays, society is developing at an increasingly rapid pace. Many manufacturers have chosen or are preparing to choose no-clean welding technology, especially the no-clean welding technology using low-solid-content no-clean flux has developed rapidly. The various advantages brought by this new type of flux satisfy the users. However, ensuring the quality of no-clean welding involves many factors. Although many people are using no-clean solder materials nowadays, very few people know about themLead-free, environmentally friendly and maintenance-free solder wireThe requirements for use and some other requirements will be explained by JJY Solder Paste Manufacturer below:

1No-wash solder wire is a type of solder wire. After the solder wire is soldered, not only is there very little residue left, but it almost doesn't need to be cleaned again.

2Some of the fluxes used in ordinary solder wires contain hydrochloric acid, which can easily corrode the soldering components such as circuit boards and pins. Therefore, after soldering, the soldered areas must be cleaned, which is both troublesome and unsafe.

When using no-clean flux, the welding process is mainly a cleaning process, or more precisely, a neutralization process. The heat energy released during welding is consumed and the residual flux that does not require cleaning is neutralized. If the no-clean flux is not fully exposed to the peak temperature of the weld, the weld residue may not be neutralized. This means that the untreated original flux remainsPCAUnder certain temperatures and humidity conditions, this residue is harmful.

Flux residues are further classified into harmful residues(High risk)And bad residues(Low risk)Two kinds:
Harmful residues, in the molten state, the molecules of ions form positively and negatively charged particles(Ion)Polar molecules have a dipole moment, which also means the center of positively charged particles and negatively charged particles(very)At different times, some polar molecules, when exposed to certain solvents, will decompose to form ions. Residual ions and polar molecules are issues of concern because they can cause leakage between two conductors, insulation failure, severe corrosion and dendrite growth. So these will have an impactPCAIts functionality and reliability.

There are still some undesirable residues, mainly affecting the poor connection of electrical appliance connectors. It may also adsorb dust and even cause ion and toxic pollution. In addition, there are low-risk residues and medium-risk residues.

The no-clean flux used in manual welding is classified as a highly dangerous residue because an excessive amount of liquid flux is applied to the solder joint and spreads over a large area. Manual welding tools only heat local areas, that is to say, the vast majority of flux residues do not reach the peak welding temperature. When doing manual welding, it is recommended to clean the inside partially.

Shenzhen JJY Industrial Technology Co., Ltd. mainly operatesLEDSolder paste, lead solder paste, lead-silver solder paste, stainless steel plate solder pasteSMTSolder paste, lead-free solder paste, lead-free solder wire, lead-free solder wire, lead-tin wire, lead-free electrode, peak electrode, automatic solder wire, etc.