Q: What are the three types of soldering methods?
A: These methods include the manual soldering, wave soldering, and the reflow soldering.
Q: Where are the solder products applied?
A: Both solder wire and solder bar give wide applications in metal equipment, electronic components, communications equipment, electronic instruments, and more. Our solder paste is mostly used for the soldering of electronic components of SMT, SMD, PCB and LED.
Q: What types of common solder wire are there?
A: There are solid solder wire, flux-cored solder wire, and the no-clean solder wire. The flux-cored solder wire contains a certain proportion of rosin flux, which features superior soldering effect and gloss surface. The no-clean solder wire is produced by adoption of special agents, so there is no need to use other agents to clean the surface of components after use.
Q: Why does the solder wire give low soldering speed?
A: A first choice is to check whether the temperature of soldering iron is too low. Other aspects to be noticed include the surface oxidation of solder tip, the excessive impurities of solder wire, and the flux of solder wire. Under normal circumstances, the preset temperature of soldering iron ranges from 300 to 360 degrees Celsius. The solder tip must be replaced in time, and its service life is approximately one week.
Q: Why does the tin splatter when the wire is soldered?
A: When the amount of rosin flux in solder wire is excessive, we advise customers to reduce the amount of flux to 2%.
Q: What types of solder paste are there according to the temperature?
A: The first type solder paste features the low temperature of 138 degrees Celsius. It refers to the Sn-Bi or Sn-Bi-Ag alloy solder paste, which can be applied in LED. The second type solder paste has the medium temperature of 189 degrees Celsius. It can be Sn-Pb-Ag or Sn63Pb37 alloy solder paste. The third type solder paste is provided with the high temperature from 217 to 227 degrees Celsius. It can be Sn-Cu, Sn-Ag-Cu, or Sn-Ag alloy solder paste. This type material is ideal for use in the chips of mobile phones, as well as the top-grade and high-precision electronic components.
Q: What are the specifications of the solder wire?
A: The leaded solder wire features various alloy specifications. The diameter of this type wire is at least 0.35mm. The Sn96.5Ag3.0Cu0.5 lead-free solder wire is provided with the diameter of at least 0.1mm.
Q: What are the price and payment terms?
A: The price terms involve EXW, CNR, CIR, and FOB. The payment method can be either T/T or Western Union.
Q: What is the minimum order quantity of solder products?
A: The MOQ of solder wire is 100kg, excluding the weight of samples. The MOQ of solder bar is 100kg. The MOQ of solder paste is 50kg, excluding the weight of samples. Each drum can accommodate the rosin with its weight of 225kg.
Q: What is our production capacity?
A: Our monthly production capacity is 100 tons for solder wire, 50 tons for solder paste, over 10 tons for solder powder or tin power, and from 100 to 300 tons for solder bar.
Q: What product certificates have we achieved?
A: The lead-free solder in our company has already passed multiple certifications, such as SGS, RoHS, REACH, and more. Our company has obtained the ISO 9001 certificate, as well as the certificate of a registered member of the China Association of Electronic Soldering.
