The process of soldering wire

Nowadays, with the trend of miniaturization design of cell phones and computers, electronic products are made more and more thin and light, and to achieve this goal we can not do without our printed circuit technology. Familiar with the dismantling of friends know that a circuit board designed to meet the different needs of large and small components, and components and circuit boards are soldered together is the solder wire. Here let me introduce to you the knowledge of the solder wire, so that you have a deeper understanding of the electronic products around.

What is solder wire

Short for tin wire, it is made of two components: tin alloy and flux. During the soldering process, the flux of the tin wire can improve the heat conduction ability, remove the surface oxidation layer, and increase the soldering area to facilitate soldering. When soldering, it needs to be used with a soldering iron or laser.

Soldering wire can be divided into tin-lead alloy solder wire, pure tin solder wire, tin-copper alloy solder wire and so on according to the metal alloy material it is made of, according to the chemical composition of the tin wire flux can be divided into rosin-cored wire, solid-cored wire, no-clean wire and so on, and according to the dissolution temperature of the wire can be divided into high-temperature soldering wire, room temperature soldering wire, low-temperature soldering wire.

Solder wire in the circuit board

Circuit boards in the welding of electronic components need to be soldered wire for bonding. The high temperature of the laser or soldering iron dissolves the solder wire. Low in the electronic components of the bonding parts and gaps, fixed and maintain the current. And the quality of welding is directly related to the quality of the tin wire, which is determined by the tin alloy and flux. If there is no flux in the solder wire, it cannot be used for soldering electronic components because it does not have the expandability and wetness required for soldering, and it will splatter all over the place during soldering.

Solder wire process

Solder wire production according to the use of the purpose, need to comply with national standards for production, the following small brief introduction to the production process of solder wire:

1.? Workers of the raw materials for the production of solder wire tin, lead, rosin, anti-oxidant in accordance with national standards for testing.

2.? Workers melt the raw materials at high temperature. According to the purpose of production in accordance with a certain proportion of melting in the boiler, and add anti-oxidant on the surface to prevent oxidation and appropriate mixing.

3.? Pour the melted raw materials into the rod-shaped mold casting blanks.

4.? Squeeze the tin billet. This is the most critical step. It can be done by an automated hydraulic press.

5.? Wind the wire after extrusion. Manufacturers through the automatic counting of the winding machine under the still need to the winding process of uneven winding, etc. to think rest.

After a brief introduction to the small, we are not on the solder wire is an understanding of it? As tin and lead are heavy metals, everyone in the use of tin wire remember to use in a ventilated working environment, or add an exhaust fan and so on.

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