Lead-free solder paste is one of the more common auxiliary materials for soldering in the electronics industry. Nowadays, with the development of the times, it will be used in many of our industries. Lead-free solder paste is divided into several types, because there are many types and specifications of solder paste, and the products for soldering are also different, of course, the price is also different. The following solder paste manufacturers will talk about it for everyone:
The classification of solder paste is generally divided into the following categories:
1. No-cleaning solder paste, this kind of solder paste has a smoother welding surface and less residue. It can be used by various technologies without cleaning. While ensuring the welding quality, it shortens the production process and speeds up the production progress; this kind of solder Ointment is the most widely used and has many uses.
2. Ordinary rosin cleaning type, this solder paste shows good "tin speed" during the welding process, which can ensure a good "soldering effect". After welding, there are more rosin residues on the surface of the PCB, which can be cleaned properly Cleaning with solvents ensures that the cleaned surface has good insulation resistance and can be tested by various functions.
3. For water-soluble solder paste, due to technical reasons, the residue on the surface of the PCB board is generally too large, and the electrical performance is not ideal, which seriously affects the product quality. At that time, CFC cleaning agent was used for cleaning. Because CFC is not conducive to environmental protection, many countries prohibit the use of CFC. In order to meet the needs of the market, water-soluble solder paste has been produced. After the welding work of this solder paste is completed, it can be cleaned with water, which not only reduces the production cost of customers, but also meets the requirements of environmental protection.
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