In the marketLead-free solder rodsIt is very easy to buy, but while it is convenient, there are also many problems bothering customers. For instance, if you don't know how to choose lead-free solder rods, it's okay. TodayJJYThe editor will explain it to everyonenoleadweldingTin barPurchasing Guide.

There are two shapes of solder that are readily available on the market. They are tin bars and tin wires respectively. The tin bars are large in size and are suitable for welding galvanized iron sheets or for tin dipping of wire joints in an electrician's tin furnace. Solder wire is commonly used for radio soldering. The solder wire is sandwich, with solder on the outside and flux at the core. Even if the pins or pads of the parts are slightly oxidized. It can still be welded well.

From the perspective of solder composition, there are two types. Leaded solder and lead-free solder.Leaded solderThe main components are tin and lead. By weight ratio, the content of tin is commonly as follows50%,55%,60%,63%There are three types, and their melting points decrease in sequence.

In recent years, due to environmental protection requirements, there has been so-called lead-free soldering. What is common is99.3%Tin0.7%Copper. Melting point approximately230Celsius. Because the melting point of this kind of solder is relatively high, the temperature of ordinary soldering irons often fails to reach it, and it is easy to solder into a crumbly state or damage the parts. In industrial production, lead-free solder wire is always used in conjunction with constant-temperature soldering stations.

Shenzhen JJY Industrial Technology Co., LTDEstablished in2008years10Yue is a customized solder solution provider integrating the research and development, production customization and solution services of electronic solder (solder paste, solder wire, solder bar, etc.). The brand "JJY" it operates has been selected into the Brand Power Demonstration Project [Solder Materials]. If you are interested in consulting, please feel free to call us for negotiation!