Soldering wires and cables in a residential
soldering process is not so simple as it seems from the outside. That is, like, everything is clear: melted soldering iron solder wire stuck in it, gave cool and ready. But when it comes to self creativity, once a problem, everything falls apart or look sloppy and unreliable. Of course, stuffed hand in flom really decisive factor, and no explanation is usually enough, but some tips can be useful for beginners.
The necessary tools and materials: household electric soldering 20-65 watts, or other rosin flux, solder POS-60 knife cutter. More about it.
Power soldering iron is preferable to select the thickness of veins. 20-25 watt soldering iron has a more subtle sting and it is easier to solder thin wires, for example on the PCB with a thin installation. But such a low power soldering iron is virtually impossible aspermanently solder wires with thick veins, such as a network cable. Usually for domestic use soldering acquire 40 or 65 watts, for his home rations enough.
conventional copper sting nuzhdaetsI'm a regular mop. Under the influence of heat and air on its surface oxide is formed. If not for a long time soldering iron dipped in resin and warmed by heating only the air, then oxidised sting need to clean cloth or clean up a file and to tin solder. &Nbsp;
Plumbing black oxide film from the sting deal of nervousness and ungrateful. Because of this film does not get enough thermal contact between the soldering iron and soldered piece, and it is not heated to the required temperature. In addition, properly cleaned and tinned soldering tip as ink pen able to take some of thesolder on its surface, and share them at the moment of soldering or tinning.
In recent years, with replaceable soldering tip and the non-stick coating to clean them with a file is not necessary, it is enough to wipe their cotton cloth.
Rosin yland other flux
For brazing alloys of copper and silver is used as a flux rosin. It prevents hot surfaces from the formation of oxide film and to some extent limits the temperature of the soldering. Soldering flux required, without quality soldering will not work. Sometimes, in the toneone tube of solder rosin is already included, but this is not enough and the soldering tip should be regularly dipped in a flux.
Rosin is made from the resin of coniferous trees - turpentine. Actually pine resin is heated to boiling, just present it in turpentine. Occurs divideds: turpentine separated, rosin remains. From this it follows that in the absence of ready rosin soldering can be used pieces of fir or pine resin. Alas, the resulting flux when soldering has a pungent smell.
In general, as a flux can be used and other substances such as stearin, but they have their ownfeatures and recommendations for use.
For brazing copper and its alloys are commonly used in electronics solder POS-60. "POS" stands for tin-lead solder, "60" is the percentage of tin in it. This solder has a meltingmelting at 190 ° C is best suited for soldering wires and small household items. In specialty stores often sold by him. In the retail sales occurs in the form of wire wound on the coil diameter of 1 to 3 mm, which in turn can be filled tube rosin.
In industry, often the same sort of solder can be used in the form of bars with a circular cross section. However, similar to the rods should be careful, since in the form of bars are produced in the same PIC 40-tin solder and other marks. Accordingly, they are higher melting points. bars of PIC 40 and has a smaller number Serovafifth color, and pure tin flexural publishes kind crunch. In the assembly of connected cables may lead solder used antimony containing POSS-30-2
So, if you are not going to solder aluminum and its alloys, do not bind to the zinc-containing solders. Conventional electric soldering iron his PracticalEski impossible to melt
How to solder the points
gently, being careful not to scratch the cable conductor, remove the insulation.
Do not remove the insulation is notessary for soldering enough detail 2-4 mm. It is better if the remaining insulation is closely adjacent to the soldered surfaces and in the contact zone will not be too much a bare wire.
If soldered wire stranded, the copper conductors must be twisted together into a tight bundle to soldering itnot split into hair and cause a short circuit with dense installation.
If solderable conductors have dark oxidized surface, they must also be clean knife or file. On the oxidized surface of the solder with the usual rosin does not lie.
If you are preparing for soldering lacquered wire (found in modern headphone cords), then trimmed with a knife it is not necessary. Nail burns easily when sufficient heat soldering iron and removed simultaneously with solder.
Usually itemsl warms soldering iron in molten rosin environment with the presence of solder. Solder with soldering tip with the spreads on the heated surface to form a bright shiny surface on copper.
In the practice stage electronic tinkering is required, as well soldered tin-plated parts quicklyWithout causing overheating of the circuit elements and other isolation reflow.
same products that overheating is not critical can be soldered directly, but this option usually requires more powerful soldering iron or non-electrical soldering applications (futorok, soldering hammers) heated open fire. This way whenchanges, for example during installation of telecommunications cables:
Solder on grassing parts or surfaces must lie evenly. Soft stranded conductor is filled with solder tinning as paint brush. &Nbsp;
The two parts are put together, fixed and heated soldering iron to melt the solder.
soldered connection should be left fixed to the solidification of the solder. Solidification of its markedly over the surface: molten solder shiny as mercury, frozen as a matt silver behaviorrhnost.
After soldering surfaces, it is desirable to remove residues or other rosin fluxes because they can corrode the conductors. The conductors are insulated from each other and from accidental contact.
For soldering iron and aluminum have their tricks in the form ofuse special flux for iron and zinc-containing alloys, aluminum.
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