Gas burner for soldering copper and a soldering iron: a choice of the best

The theory and practice of the process of connecting copper communications

To qualitatively dismantle the soldering connection it is enough to bring it to a warm temperature and to break the pipe and the coupling. Thus, with the help of hot mounting it is possible to create any pipeline with the functions and qualities necessary for you.

Before proceeding to the topic, why do you need a gas burner for soldering copper, you should disassemble a set of tools for soldering.

Undoubtedly, the main tool for pipe joints is a soldering iron, or in other words a device for high-temperature brazing, in which the heating takes place both the workpiece and the solder. Next, you will need to use also auxiliary kits for docking workpieces, which consist of a faskosnimatel, pipe cutter, expander, hammer and meter.

Brazing of copper with paste and flux

The role of solder in high-temperature brazing is performed by thin copper wire, which at 600-800 ° C begins to melt and weld the joint.

In turn, when low-temperature soldering, wire is used from tin, which is heated at a lower temperature - up to 400 ° C.

If you want to apply a flux, then most often the liquid is applied directly to the coupling and pipe in the liquefied form, or as a solid substance welded at the place of soldering.

Paste, with which solder copper communications, called flux, it is represented by a thick mass, which should be applied to the product before and after docking. The flux ensures absolute tightness and prevents the appearance of air in the docking. Then you can continue to prepare the joint junction.

Preparation of

To weld the docking assembly from household pipelines, it is important to use special fittings necessary for soldering or socketing at the pipe ends. A consequence of this is the overlapping of the socket on the docking seam. Also at this stage, a gas burner for copper brazing is prepared.

Copper fittings are replaced with socket fittings wherever appropriate. Such possible cases can be:

The creation of a socket flare in the pipe directly occurs in several ways:

1. The ends( ends) of the joint are rolled with a pipe cutter and are exposed perpendicular to the axis of the product.
2. The ends of both workpieces after removal of facet chamfer and the inner and outer parts of the pipe are cleaned with a copper brush.
3. The first workpiece is laid aside, and the second is expanded with a previously prepared expander to the desired and possible caliber. Then flare the inside of the communication, so that the diameter of the first pipe can fit into it. The diameter of the workpiece and the degree of expansion should coincide.

When the flaring of the pipe and socket ends, you can proceed to the next stage.

Soldering of

pipe joints To solder joints, it is worthwhile to proceed when the bell and coupling are prepared. The type of propolis and the type of compound are determined in advance.

Soft welding will have approximately the same appearance as in the photo.

There are some regularities of operation:

1. The details for each other are tried on when the joint flared joint is assembled and processed.
2. The flux layer is applied to the outer and inner sides of the pipe with a liquid and thick composition, when all parts are joined without any wrangling. Then the workpieces are laid in the knot of the socket.
3. Now a gas burner is needed to solder copper, which is heated to 400 ° C and once the flux begins to darken under the temperature, it is necessary to produce solder.
4. Wire brazing is applied to the brazing zone. The tin melts during connection to the pipe. Then the heated mixture slips from the flux into the seam, filling at that time the seam between the pipe and the bell. It is possible that a small amount of the mixture will be on top of the seam.

The solder seals and fixes the pipe.

At high temperatures, the soldering process is somewhat different, so below we present in stages the technology of applying this solder.

1. The node is treated with a flux in the form of a paste and collected. In fact, the socket is placed in the coupling and two blanks are welded to them at once.
2. Place the assembled structure on the heat-resistant surface so that it warms up and the flux melts.
3. To the joint point of pipes and sockets, copper brazing is introduced and a gas burner for copper brazing is connected, which softens the wire and fastens to the joint and spreads along the joint on the pipe.
4. Then the tube with wire braid is scrolled, winding on the joint area until the seam is formed.

The result of all actions is a welding seam with a high level of strength and tightness. For a domestic pipeline such products are best!