Q:How do you handle the oxidation of the electric iron head (almost all of it, especially the head is black)?

It's useless to change a new one.

Q:Wire is galvanized wire, in the black part of the top of the two parallel wire without leather (diameter 0.5mm), iron wire in the middle of a metal wire (not visible on the map than the hair is thinner, I do not know what the silk). I use electric iron. Solder. Solder paste but how can not be welded, make the galvanized layer on the wire will be burned iron, not black, is there a high efficiency can be mass-produced?

Soldering copper with solder paste or rosin can be done. Galvanized iron wire shall be made of zinc acetate solution as soldering flux,Method of preparing hydrochloric acid solution of zinc is lost a few pieces of galvanized iron down in dilute hydrochloric acid solution, for zinc in hydrochloric acid solution foaming foaming explanation.

Q:The line of electric iron has been touched by electric iron, so can it be wrapped with adhesive tape?

Look, this is no exposed line. It's wrapped with black tape

Q:How does electric iron head often oxidize how to do? And sometimes it's not tin

No tin. Basically, it's oxidationIncrease the life of the soldering iron head,The basis is that the correct use and maintenance methods, I only emphasize a little, good after soldering iron head tin maintenance, the iron should not directly hot soldering flux.On this basis, to extend the life of the process is the mouth of low temperature lead-free welding welding, 350 degrees hotter than 400 degrees more than double life, each cut will be 10 brings supplies life and the rate of finished products revenue growth index.Low temperature welding, but also involves Taiwan welding quality, preheating, welding solder, a technology, is the main money

Q:One of my earphones is broken. I want to weld myself,One problem with me is that the melted tin does not stick to the copper wire when soldering. The soldering tin is stuck on the iron head and the copper wire is not melted

The headset line is generally enameled wire, above a layer of insulating paint, you use a knife to scrape paint, in the method we say welding. Paint on the line is the reason why you can't get it welded. And you take the direction of the soldering iron, take away the soldering iron, solder on the welded components, forward and down solder will be taken away by the iron.

Q:Which electric soldering iron is best used?

Heat, electricity and heat, with the power of the external heat ratio. We usually use the electric iron with the voltage at 220V 240V is my best, so I am here even burned 3 electric iron, I use the thermostat to normal use. In fact, generally under the voltage of 220V the electric iron is high temperature, it's better to buy a thermostat, can have a temperature adjusting circuit,

Q:Who knows how to solder two coins together? Either the front or the side. I haven't solder it for days, thank you

Coins are alloy. There may be no tin metal component. The surface shall be chromium and not weldable.. It may require argon arc welding or silver welding to weld

Q:What if there is no electric iron and the wires are to be welded to the circuit board?

You can heat it up with a screwdriver and solder it, so it melts

Q:What is it? Buy electric iron when buy together, how should use?

This is rosin, used to clean the head of a soldering iron

Q:What safety issues should we pay attention to when using electric irons?

Shut up when you've finished