How to Solder

The question is, how to solder, for today's domestic masters and technicians is not worth it today. But when it comes to business, it turns out as in that anecdote about Leo Tolstoy, who adored playing the balalaika, but, unfortunately, he could not.

Since the masters learned to melt lead and tin, there were tinsmiths who were engaged in soldering metal blanks.

The joints made before soldering are cleaned and degreased by gasoline. The sting of the heated soldering iron is dipped in rosin or ammonia. If a faint smoke appears, then the soldering iron is ready for use.

Rosin cleans the tip of the soldering iron from metal oxides. The soldered tip of the soldering iron is plunged into solder (usually tin) and held there until it is covered with a film. This film is leveled over the surface of the junction, ie. "Zaluzhivayut" it. Then the main mass of solder is transferred to the junction, which is necessary for joining the workpieces.

And how to solder without using a soldering iron? You can use chemical compounds that can release "solder" as their temperature rises. These are solder pastes. They are indispensable for soldering in a hard-to-reach place. The paste is applied to the joint and heats up.

Now let's see how to solder aluminum. This is not easy to do, since the oxide film is again formed during the cleaning of the aluminum surface. The presence of such a film reduces the strength of the joint. Therefore, immediately after cleaning the surface of the junction spot, a passive flux is poured onto the aluminum billet. It can be rosin, glycerin and any of the fatty acids.

Soldering aluminum is a powerful soldering iron. If the flux is selected correctly, the aluminum is easily sealed. To its tinned surface without problems, you can solder the copper wire.

There is another way: the surface layer of the aluminum billet is cleaned, smeared with rosin, sprinkled with copper powder. After this operation, the soldering of the parts can be carried out with conventional tin solder.

Not so long ago, metal pipes were replaced by plastic products. And how to solder the plastic pipes? This is absolutely not difficult to do if there is a necessary tool for welding them.

The nozzles of the required dimensions are attached to the heating apparatus. The regulator exhibits a temperature of no higher than 2700 Celsius.

As long as the nozzles are heated on the welding machine, pipes of the required length are prepared and cut. Burrs and irregularities are necessarily removed, then a mark is placed on the pipe, equal to the depth of the fitting. After reheating, the pipe will go into the fitting for the length measured by you. The surfaces to be welded are degreased. Now it is time to warm up and solder.

On the heated nozzle located on one side of the welding apparatus, the fitting is first put on, since it has thicker walls, and this requires a prolonged heating. The fitting should sit tightly on the nozzle. On the other side of the welding machine, a plastic pipe "sits" on the second nozzle.

The heating time of the pipe and fitting is specified in the instructions to the welding machine. At the time of heating the parts to be joined, try not to turn them, as this can cause compression of the plastic.

The heating time is maintained, then the parts are removed from the nozzles, and the pipe is slowly inserted into the fitting to the mark made earlier. You can not twist the parts to be joined.

Now you know how to solder the plastic pipes.