About 10 - 15 minutes.
It depends on the manufacture of the device. High quality gas powered ones can heat up in seconds. Cheap mains powered ones can take up to 5 minutes.
Look at the 'bit', the part that gets hot that you do the soldering with. It should have an inclined flat surface on the end. If it has not, make one by using a file. Heat the soldering iron up. At the same time get the solder out, which should be tin solder with internal flux. When the iron is hot, quickly file the surface of the bit clean and apply the solder, which should immediately 'take' to the surface. That's it.
Electric irons take a long time to cool down because the heating element heats up to a high temperature to remove wrinkles from clothes efficiently. This accumulated heat takes time to dissipate after the iron is turned off, causing it to cool down gradually. The insulation and materials used in the iron also contribute to the slow cooling process.
To use a soldering iron, you must have a piece of solder, something to cool it down, eg a damp sponge and a mains plug socket.You must plug in the soldering iron and push the switch. Then, you must take your piece of solder, and with the soldering iron in one hand (Preferably your strongest hand) and your piece of solder in the other, you need to heat the tip of the soldering iron by feeding your piece of solder through the curved part of the soldering iron. This will melt the tip of the solder, and once you have melted about 5 millimetres, you are ready to go.You need to use your piece of solder to feed through the soldering iron once again, but this time, the melted solder (the gooy gray stuff) that comes out needs to be applied to the two pieces of metal you want to solder together. Once you have used about 2 centimetres of solder, the melted solder will have hopefully made a mountain shape that curves around the two pieces. Solder freezes VERY quickly so you only have to leave it for about 5-10 seconds, then give it a firm pull, and it should remain intact.ANSWER: The sponge is not to cool it down but rather to clean the tip from operation to operation. To begin with apply solder to the tip to tin it. Always use the right iron for the job. The idea is to melt the solder and make a good connection without heating and destroying the part. A good solder connection is a shiny connection. The application of solder flux will help the solder to flow and displace material present. There is no time limit or set time if it takes too long you got the wrong iron needs more heat in that case or a clean tip.prepare the items to be soldered so that they make a solid mechanical contactclean the surfaces with flux (if you are using "cored solder" this happens automatically)begin heating the items to be soldered with the soldering ironmelt a little bit of solder between the soldering iron and the items to be solderedas soon as the items to be soldered are hot enough to melt solder themselves melt solder into themimmediately remove the soldering iron and let the joint coolif the joint has smooth shiny surfaces you are done, otherwise the joint will be rough and crystalline looking (this is called a "cold joint") and you will have to apply more flux remelt it with the soldering iron and sometimes add a bit more solder. oddly enough a common cause of "cold joints" is overheating and burning off the flux you applied
For those people who really have a knack for "do it yourself" projects, a soldering iron is a nearly indispensable tool to have around the workshop. There are a number of electrical components that go on the fritz for very simple reasons, and these problems are often caused by nothing more than an out of place wire. Instead of trashing the whole piece of equipment and buying another one, the thrifty do it yourself enthusiast will just open it up and take care of the problem right then and there. Using a soldering iron will help make sure you have a solid repair job.
iron does not decompose but after a long time and i mean a long time it just starts to flake away but does not decompose
Cookies typically take about 10-15 minutes to cool before they are ready to be eaten.
-Use a good soldering iron with fine pencil tip. Radio-Shack irons are good and reliable. -It is important to have aclean tip. Do not use very abrasive surfaces to clean / polish the soldering iron tip. if th etip looks bent or damaged, it is worth investing in a new tip. -Please take all precautions while using soldering irons. Solder on a fire resistant surface. Homosote, or dry wall are good . Never leave your iron plugged in and unattended. Do not overload a wall outlet with too many electric appliances. Never set your hot iron down on anything other than an iron stand. Replace the cord of your iron if it becomes worn or gets burnt. To prevent burning your fingers, use needle nose pliers or heat resistant gloves to hold small pieces. Never cut off a grounding prong on an iron plug to make it fit an ungrounded receptacle.
It depends how long you're heating it.
I think that it takes about 1-2 minute to cool but I am not sure...
200 years
its cool