What work needs to be done before welding low-temperature, environmentally friendly lead-free solder wire?

Welding Low-temperature, environmentally friendly lead-free solder wireWhat work needs to be done before? Nowadays,In electronic assembly technology, people's environmental awareness is getting stronger and stronger. From the perspectives of environmental protection, legislation, market competition and product reliability, lead-free is imperative. During the entire soldering process, do not touch the soldering iron tip or the lower tin wire with your hands to avoid scorching it,With the continuous improvement of new technologies, tin wire has also achieved a very significant development trend. According to the different chemical compositions of their metallic materials, tin wires can now be classified into lead-free environmental protection tin and leaded solder wires.

Among them, lead-free environmental protection tin wire is relatively widely used. Lead-free tin environmental protection wire belongs to green environmental protection products. Due to its high cost, attention should be paid to reducing consumption during manufacturing. The melting points of tin wires due to differences in composition are also different. The preparations before soldering lead-free environmentally friendly tin wire are as follows:

 1To check the status of the software, a flip can be usedPCBInspect the two feet of the parts on the board and try to keep them as neat as possible after software inspection.
 2CheckPCBWhether the board is oxidized by air or has dirt must generally be checked before weldingPCBThe board is being cleaned. It is proposed to use an eraser to scrub or a fruit knife to scrape off the dirt.
 3Inspect the solder joints: According to the application experience, the solder joints should be in the shape of a tower from the surface, and they should be round, bright and smooth.
 4When using software, special attention should be paid to inserting the electronic components that must be solderedPCBIn the board, it is stipulated that the parts should be as flat as possiblePCBOnly boards can do it.PASS;
 5When welding items with a large volume,The soldering time for lead-free tin wire must be extended, usually exceeding it5Seconds or longer. Everyone can solve this kind of problem by using high-power soldering irons,Can be adopted60-80WThe electric ferrochrome.
   6Pay attention to the posture during welding: Generally, the left hand holds the electric ferrochrome,Hold the lead-free tin wire with your right hand and place it on the soldering point together. The next point to note is to ensure that the tip of the soldering iron touches the solder joint.The welding time is generally at2-3It only takes a second. By this time, the solder joint has already been completely formed.
  If you follow the above regulations, your summary will be twice the effort for half the result.

The solder paste of Shenzhen JJY brand has gone through many years12A solder paste and wire manufacturer specializing in the research and development of solder paste, solder wire, solder wire, lead-free solder paste, leaded solder paste, solder rods, leaded solder paste, etc. Our main business includes:LEDType solder paste, lead-containing solder paste, lead-containing silver solder paste, stainless steel plate type solder pasteSMTSolder paste and wire manufacturers of type solder paste, lead-free flux paste, no-clean solder wire, lead-free solder wire, leaded solder wire, lead-free and leaded solder rods, wave solder rods, automatic solder wires, etc