The characteristics and differences between copper and brass materials of soldering iron head
The reason why the soldering iron tip uses red copper material is based on the following reasons: The first choice of material for the soldering iron tip is that the molecules of the material of the soldering iron tip should have affinity with the molecules of the solder, so that the soldering iron tip can be dipped after being heated. Soldering is convenient for welding operations; second, the heat specific capacity of the material of the soldering iron tip is larger, that is to say, the thermal insulation performance is better; the oxidation resistance of the material is good at the welding temperature. Before the alloy long-life soldering iron tip appeared, copper, one of the metal materials that met the above conditions, was the first material.
Red copper is characterized by fast heat conduction and easy tinning, but it is not resistant to corrosion, and the soldering iron tip is not strong enough for micro-soldering, and the soldering iron tip is easily deformed and broken. Now the tip of the soldering iron is made of steel that is not easy to break, and the external coating is corrosion-resistant and easy to apply tin coating. Although the heat conduction is poor, it has little effect, but it is very durable.
The higher the purity of copper, the more durable it is, and the denser it is, the more durable it is. The reason for the ablation of the copper soldering iron tip is that the temperature is too high. The copper and the lead-tin alloy combine to form a copper-containing alloy, which is melted and corroded. The new copper soldering iron tip After heating to 350 degrees and clamping, hammer and forge the part that eats tin, which can greatly prolong the service life. Solder with high-temperature solder (such as lead) and silver soldering iron tip can be used.
Brass soldering iron tip has poor heat conduction, and it is more durable than copper when it is below 400 degrees. It is ablated faster when it exceeds 450 degrees, and it is far worse than copper. In the final analysis, the life of the soldering iron tip depends more on the long-term working temperature of the soldering iron tip
Copper——as a heat conductor, it is the main component of the soldering iron tip (soldering iron tip). Accounting for about 85% of the material of the soldering iron tip, copper has good thermal conductivity, which is conducive to the rapid heating of the soldering iron tip. Good soldering iron tips are made of copper. At present, some manufacturers use brass or even iron directly for profit. The cost is reduced, and the heat conduction effect of the soldering iron tip is also reduced.
Regardless of the type of soldering iron tip you use, it needs maintenance. The so-called maintenance, one is not to use it at excessive temperature, the other is never to let your soldering iron tip burn in the air without the protection of solder, and the third is to use a temperature-resistant sponge to add water when cleaning the soldering iron tip, and never scrape it with a sharp object.
