JJY teaches you how to identify the quality of solder wire?

Nowadays, the electronics industry is increasingly dependent on the demand for soldering products. We not only need items for solder paste soldering but also solder wire. Many merchants do not know how to distinguish in this regard and purchase substandard products. Something that could be done in a few minutes is still not solated well after half an hour. Isn't this a waste of time? Therefore, choosing a manufacturer is very important. Now, by Jia JinyuanSolder paste manufacturerLet's explain how to identify the quality of solder wire?

First, look at the solderability of the solder wire. The solderability of the solder wire is determined by the rosin and flux inside it. If the soldering performance is poor, even the best solder wire is of no use. Secondly, check the residual material after welding and the insulating cathode between the weld points. If there is a lot of residual material, the board will be dirty after welding, and a small insulating cathode will affect the electrical performance. Looking at the brightness of the solder joints, the tin content of the solder wire determines the price of the solder wire and the brightness of the solder joints. The tin content also determines the melting point and fluidity of the solder wire. Then, look at the amount and smell of the smoke during welding. Good solder wire produces less smoke and poses less harm to the human body.

Methods for distinguishing the quality of solder wire

I. Tin content

This is the most important part and also the sole criterion for judging the grade of solder wire. It is also an important factor related to indicators such as welding effect, firmness, reliability and electrical conductivity. When using leaded solder wire, we must use solder wire with a tin content that meets the product requirements; otherwise, the soldering quality will have problems to varying degrees. The amount of tin content cannot be distinguished by the naked eye; it can only be known through testing. There are also many detection methods, such as: spectral detector, gravimetric specific gravity method, chemical titration method, etc. These testing devices are usually not available in electronics factories, leaving a large gap.

Ii. Luster color

This is related to the quality grade of the solder wire, including ShenzhenSEOThe amount of tin is also directly related. The luster color not only affects the appearance but also the welding quality. The lustrous and dazzling color must have a high tin content and good welding effect; otherwise, the welding effect will be poor, and even a dull or whitish color may appear, which is not a normal shiny color.

Iii. Residue and Smoke Concentration

When the flux components in leaded solder wire catch fire during soldering, residues will be left and smoke will occur simultaneously. When the smoke is thicker, there is likely to be more residue. Residues will affect the appearance of the welding points and often need to be cleaned to solve the problem. And the smoke will affect the physical and mental health of the operators. Therefore, when choosing leaded solder wire, it is hoped to select solder wire with low residue and smoke concentration.

Iv. Packaging appearance and weight of solder wire

Although appearance cannot accurately explain what the problem is, it still needs to be mentioned. Products produced by a regular, powerful and brand-name manufacturer must have relevant appearance and packaging standards, as well as detailed labeling instructions for this solder wire. Otherwise, how can customers distinguish and use them? Another point worth mentioning is the weight of each roll. Different weights result in different prices. Nowadays, solder wire comes in various packaging weights.

To sum up, it's time to choose oneSolder wireIt is still necessary to make a careful choice. From the initial sample to the final purchase, it is essential to find a brand with relatively strong strength. Of course, many foreign brands have a relatively high reputation. Relatively speaking, if you choose a big brand, the corresponding cost performance is also relatively high, which will put considerable pressure on many small enterprises. Therefore, accurate judgment is the most important. Here, The editor can recommend a cost-effective company specializing in the production of solder wire, solder rods, solder paste and flux paste. That is JJY: Here we can recommend high-quality, reasonably priced and low-priced products for you. Good quality and excellent service are their advantages! Everyone can go and consult.