A construction hair dryer is a tool without limitations. How to use a construction hair dryer correctly How to make attachments for an industrial hair dryer yourself

A construction hair dryer (also known as a “heat gun” or “heat gun”) is very similar in shape and design to an everyday device for styling and drying hair, but with minor differences. If you are planning large-scale painting or installation plastic pipes, this device will become your reliable friend.

Why do you need a hair dryer and what functions does it perform?

The heat gun is more powerful than a hair dryer (930–2300 W), the temperature of the supplied air can reach 650 °C, and the productivity ranges from 200–650 liters/min, depending on the device model and the tasks assigned. But the range of tasks to be solved is limited only by the experience and ingenuity of the person using the hot air gun. Below are just a few possible options uses:

Drying surfaces.
Soldering of metal parts and components.
Temperature increase metal connections, before taking them apart.
Warming up adhesive mixtures before applying to the surface.
Warming up the connecting layer before separating the glued elements.
Welding and shaping of thermoplastic parts (for example, creating a bend or fitting plastic pipes).
Heating varnish coatings and paint coatings for subsequent removal.
Warming up frozen water pipes.
Lighting fires for barbecue and shish kebab.

Now it has become obvious that the main function of a construction hair dryer is heating and preparatory. Operating from the mains, the heat gun has the advantage of flexible adjustment of hot air supply modes and does not require flammable fuel, gradually displacing the outdated blowtorch from the toolkit. And most importantly, don’t try to use it to style your hair or dry your pets, they will be very upset.

How to choose a hair dryer?

Choosing a construction hair dryer– the task is not difficult, but it is very important when purchasing to pay attention to such parameters as:

Power (from 930 to 2300 W). The temperature level directly depends on the power; the more powerful the hair dryer, the faster the surface will heat up. For the same tasks, the resource will be higher for the tool that has higher power. High-power hot air guns also increase the load on the network. Don't forget about this.

Power is a key parameter when choosing a hair dryer. It depends on him how quickly this or that task will be completed.

Maximum operating temperature (up to 650 °C). The higher it is, the more versatile device and the more functionality it has.
Temperature adjustment. For simplicity, we can divide all technical hair dryers into two categories: construction hair dryer with temperature control and with smooth temperature control. With the addition of one word, the difference between the two types becomes enormous. Models without smooth temperature control, as a rule, have only 2-3 operating modes with a fixed temperature, allowing you to work in conditions of maximum, medium or minimum heating, narrowing functionality heat gun to almost a minimum, forcing you to accurately calculate the time and distance required for heat treatment. You'll have to get used to it, waste time and nerves. To prevent this from happening, you should immediately focus on models with smooth temperature control, insuring yourself against cases when materials of the same type may have different melting temperatures.
Availability of a temperature maintenance system. Thanks to the temperature stabilization system, the technical hair dryer keeps the heating level of the air flow at a stable height, regardless of the load. That is, with increasing air flow strength, the temperature remains unchanged. This indicator is directly related to the power of the device.
Overheat protection function available. It will prevent the hair dryer from overheating or even catching fire in your hands while working. But even if your hair dryer has this function, you only need to work with heat-resistant gloves.
The minimum length of the cord should be at least 2.5 meters so as not to feel discomfort when working at full height.
Some models are equipped with LCD screens to display operating temperature. The option is not so much mandatory as desirable. The prices of hot air guns with a screen can be significantly higher than without it, but ease of use also increases.
Depending on the model of the construction hair dryer and the manufacturer, special attachments are attached to it to expand the scope of application.

How to use a hair dryer?

The scope of application of a construction hair dryer is very wide, so each task has its own approach. Let's look at a few:

1. Removing old ones paint coatings. The easiest way old paint removed from wooden surfaces. It is more difficult to remove paint from metal products due to the fact that metal has high thermal conductivity and partially dissipates directed heat. And a real master class - removing paint from plastic coverings and surfaces - requires considerable skill, precisely selected temperature and correct time calculation. All we need for work: a wide-spray nozzle and a hot air gun itself.

Despite the ease of use, it is very important to follow safety precautions: do not remove thermal gloves and safety glasses while working, work in ventilated areas away from flammable and combustible materials.

We put on safety glasses and thermal gloves (safety precautions come first!), set the hair dryer to the maximum operating temperature (depending on the model - from 500 to 650 °C) and maximum air flow (up to 650 l/min). Next, we direct the hairdryer to the area from which we want to remove the paint. The device must be kept at a distance of 2-3 cm from the surface to be treated and wait until the paint begins to “bubble”, announcing its readiness to leave its home. After this, you need to take a scraper or spatula and carefully pry off the treated area. The paint will readily come off without leaving a trace. After this, you can begin processing the new zone. It is important to leave a few centimeters between sections so that hot air did not fall on an already treated area.

2. Connecting floor covering seams. Using a heat gun you can simply weld the seams of several parts flooring(PVC, linoleum, rubber), using an additive harness of a similar composition. The filler wire is shaped like a thin pencil and chemical composition must be identical to the parts being welded. So, we adjust the two parts of the connecting coating close to each other, make a V-shaped groove along the entire length of the seam with a special cutter, melt the filler tow using a spline nozzle (used for slip welding of two parts of a homogeneous material) and fill the groove. The operating temperature for melting the tow should be around 300 °C. Excess connecting material is removed from the seam with a special crescent-shaped knife so that the surface of the coating becomes smooth.

3. Welding plastic pipes. The popularity of plastic pipelines is growing every day, and today there is no longer any need to call in specialists to create a water supply/discharge connection; modern tools allow this to be done at home. First, let's find a welded mirror (reflector attachment) in our kit. It is called a reflector because it prevents the welding object from sticking to the nozzle. It is shaped like a flying saucer: round and without any holes.

Attach the nozzle to the hair dryer and set operating temperature 200–300 °C with minimal air flow and leave to heat up for a while in a vertical position. When the required temperature is reached, the ends of the pipes are brought to both sides of the nozzle and pressed lightly. It is important to catch the moment when the plastic has become soft, take the pipes away from the reflector and connect them to each other. They must be held in this position for 20–35 seconds, resulting in a strong connection.

4. Welding of film coatings. Film coatings are usually welded overlapping, placing the parts to be welded so that one part overlaps the other within 2–4 cm. Having set the operating temperature of the hot air gun in the range of 200–400 degrees and reducing the air flow to a minimum, we blow the film in the joint area. The operation lasts only a few seconds, and immediately after that work area must be rolled with a roller. Be sure to check the connection for strength by trying to break it connecting seam. If the strength is unsatisfactory, it is worth increasing the temperature and repeating the procedure.

The hair dryer once again proves the old rule: “Simplicity is yours.” best friend", and the main limiter in its use is only your imagination.

Nozzles for a construction hair dryer. Expanding the possibilities! Execution of many types construction work For quite some time now, it has not been possible to do without the use of the functions of forced hot air flow. These characteristics are increasingly required in applications the latest materials high degree efficiency in modern construction technologies. It is for this reason that the use of a hair dryer has become so relevant. With just one functionality, a hair dryer can solve dozens of problems - from standard drying of products to welding linoleum. Carrying out such a variety of work became possible only thanks to the existence of a whole range of attachments for a construction hair dryer.

Modern types of nozzles for a hair dryer Often, the construction hair dryer comes with one to several specialized attachments for carrying out various types works They can also be called nozzles, nozzles or nozzles. Some of them are quite often very individual (designed for specific work) and are sold only separately from the tool, so when purchasing a construction hair dryer, you should be prepared for additional purchases. This is especially true for purchasing certain models professional level, characterized by a fairly high cost. Availability more attachments makes it possible to perform much more types and volumes of work with different types of materials. It is the nozzles that are able to form the necessary air flow in a certain way, which allows you to significantly expand the standard capabilities.

In the existing list of the most common construction market nozzles include: round focusing nozzle (1) - most often designed for sealing cracks of various thicknesses using special plastic welding tapes. The nozzle is used for soldering copper pipes based on the non-contact method of processing materials, as well as for repairing skis, veneer, boats, etc.; flat nozzle (2) – used when it is necessary to remove old putty or remnants of paint materials, film, wallpaper, including for the purpose of deformation polystyrene boards(under the supervision of a specialist), PVC structures and plastic products. For example, if polystyrene or plexiglass plates were deformed; reflector nozzle (3) – heats up plastic pipes before further deformation; crevice or spline nozzles (4) – used for PVC welding products using the cap method; carved (cutting) attachments (5) – a similar attachment was once developed for performing figured or straight cutting of foam plastic; glass protective nozzle (6) – this nozzle is designed to work with surfaces that cannot withstand high temperatures (for example, glass and various products made from it). The glass-protective nozzle for a hair dryer allows you to remove residues of varnish, paint or putty from surfaces; welded mirror (7) – used when processing joints of products using the contact welding method of various plastic materials; a wide-spray nozzle is one of the types of flat nozzles that are used to remove paint from large areas; gear nozzle - considered an adapter for carved or slotted nozzles. In addition, the gear nozzle can be safely used for spot welding; welding nozzle - the purpose of this nozzle is to directly connect synthetic type welding cables. As a rule, the most common among users are wide-jet, reflex, flat, cutting, focusing and spline nozzles.

Due to the fact that the attachments are made of metals that have a thin structure and which can heat up very strongly and quickly during use, it is important to remember that the hair dryer must be allowed to cool after finishing use. A hot nozzle can cause damage or spoil the material being processed. Therefore, when working with a hair dryer, you should use a special metal stand. Do-it-yourself nozzle for a construction hair dryer The average price in stores for nozzles ranges from 298 rubles. up to 2000 rub. However, if desired, each master can make some types of attachments with my own hands. For this, even pieces of chrome pipe with the required diameter suitable for a construction hair dryer can be useful. To create a nozzle-shaped nozzle, you will need to make 4 identical cuts on the pipe and cut out right triangles from all sides, then bend all the resulting parts inward, as in the pictures.

For dismantling and mounting SMD parts as well as microcircuits made in SOP, QFP, PLCC packages, as written in the first article, regular soldering iron no good. For these purposes they are used soldering stations, model PS-902, on the left and SR-979, from Solomon, on the right, are shown in the photographs. The station is equipped with a temperature controller, an air flow controller, an automatic static electricity removal function, and an automatic cooling system after turning off the power. The soldering station, in particular the SR-979, allows you to carry out soldering and suction without changing attachments. The stations consist of a main unit and soldering irons. Additionally available attachments for different types cases (15 varieties). The stations are designed for supply voltage: 220 volts 50 Hz. Adjustable temperature in the range 100C - 400C. That, in brief, is everything I wanted to say about the industrial soldering station. The dream of many radio amateurs and workshops, which until recently was a “Blue Dream” and can now be purchased different models and at a price.
Here are a set of photographs of the factory attachments. To enlarge a photo, just click on it with the mouse.

This article is not about the factory installation. Not everyone has the means, although the station pays for itself quickly with a large amount of work; many people just want to “construct” it, do it with their own hands. And even if such a setting is rarely used. So far there is no description anywhere for making a soldering station and attachments for it.
Here we will tell you, together with the author of homemade attachments, about making them yourself. “With your own hands,” it is said loudly, you will have to involve a turner-miller in the production, preferably, of course, someone you know. Yes, and you will have to solder the nozzles to the disks (not soldered in the photo) with a soldering iron, but it is better to contact a specialist refrigeration units. They solder the tubes with a special refractory silver-based solder. But it’s probably possible with copper, I’m not an expert in this. I don’t think it’s possible to weld very thin nozzle walls using gas welding or, especially, electric welding.
And so, the photographs show homemade nozzle with hairdryer.

What material is the cone nozzle and rings with milled holes?
-Everything is made of steel, and the guide nozzles are made of tin, some kind of tin plate, thickness 0.4mm. Later, when I have made all the attachments, I will give them to be plated with nickel; they will be no worse than the branded ones.
-Model of your hair dryer?
-We have these hair dryers on sale, they are not for construction purposes, but specifically for radio equipment. There are three types, the price is $10-12, they have a temperature regulator, a wheel, it’s simple, of course, but it’s better than nothing, in principle it will do.
-I think that you can use one conical nozzle and screw in different ring inserts. Just make the carving. Or without thread, but so that they fit tightly.
-It won’t work, during operation the nozzle gets very hot, and accordingly scale forms, it will be inconvenient to screw the bottom with the nozzles into this cone, and I also specifically tried to reduce the diameter of the cone so that the nozzle would be as narrow as possible, so that it would not interfere with its fields, i.e. The diameter of the lower part of the cone is as small as possible, see pictures.
-The thickness of the walls of the parts, indicate for all, the sizes of the nozzles and the distance between them for different nozzles. The diameter of the part that is screwed in, the thread pitch, in short, everything regarding dimensions.
-I took the dimensions from the original nozzles that come with the soldering stations, I sent a PDF, everything is indicated there, for different types of nozzles.
-How is the air temperature regulated? As far as I understand, there is no such possibility. Or the air supply speed of the hair dryer itself?
-The temperature is adjusted using a hairdryer, as I wrote above. I won’t remake this hair dryer for now, I’m starting to work out how to make another element for supplying hot air, more aesthetically pleasing and convenient.

That seems to be all for now. There will be additions, we will definitely add them and, if possible, describe them in more detail.

I give the dimensions of the factory nozzles.

A construction hair dryer or technical hot air gun is a tool that at one time replaced blowtorches. A modern construction hair dryer allows you to release a powerful stream of hot air, which allows you to heat, burn and even solder surfaces. But this tool works from electrical network, which means it has more advanced capabilities. A hair dryer differs from a simple hair dryer, which we use at home to dry hair, in its power and air temperature.

The construction hair dryer can smoothly regulate the temperature, which is very convenient when processing various surfaces material. There is also a temperature stabilization system; it is controlled electronically, so the supplied air flow is always the same temperature, and the spiral itself is not overloaded. All construction hair dryers are equipped with a heat-protective casing; it allows you to properly direct the air flow; if you remove it, the risk of getting burned increases. The handle on the hair dryer is closed, it does not burn your hands during operation.

Types of nozzles for technical hot air guns

The functionality of a hair dryer largely depends on the attachments (nozzles), which are supplied in the kit or sold separately. Round tips allow for soldering copper pipes and profiles, they are also used when welding slots with plastic. Flat nozzles deform plastic and remove old layers of paint, wallpaper and putty. Window guards also remove paint but can be used on glass windows. Reflex nozzles heat up plastic pipes to deform them.

Like any tool, a construction hair dryer (technical hot air gun) requires careful handling.

A few rules that will allow you to use your hair dryer for a long time:

— when working, first let the hairdryer warm up the coil, that is, you need to let the hairdryer run idle for at least 2-3 minutes. The same applies to turning off the hair dryer; after finishing work, reduce the air temperature to a minimum and keep it in this state for 2-3 minutes. This will allow the coil to heat and cool evenly;
- Follow the device instructions. Each job requires its own temperature and air flow power;
— do not block the air intake grilles under any circumstances, this will overheat the engine and it will simply fail;
— the room when working with a hair dryer must be well ventilated.
— It is very important to remember that many materials begin to emit when heated harmful substances, and some may catch fire.

The instructions do not always reveal all the nuances of how to use a hair dryer. This multifunctional tool will come in handy in the most different areas life and will be very useful in production. Its main function is to warm up and direct air masses. As auxiliary elements are used replaceable nozzles, designed to accurately deliver a jet of air and protect surrounding objects. However, the use of a hair dryer does not end there.

The list of operations performed with a construction hair dryer includes hundreds of different types of work. Describing the purpose as a whole, the tool is useful where precise and targeted exposure to high temperatures:

drying, heating, removing paint and varnish coatings, wallpaper;
gluing, deformation, welding of materials;
unfreezing of communications, metal products, locks, rusted bolts;
heating or drying adhesives;
applying tinting, stickers, films;
installation of heat-shrinkable parts and other installation work.

The construction hair dryer is widely used for car repairs, creating decorative elements from plastic or foam plastic, and when laying polypropylene water supply systems. This is an indispensable tool during capital or cosmetic repairs , why they most often buy it. Full list possible application of a construction hair dryer can be expanded and supplemented with clarifications, but general idea Will not change.

Only limited performance characteristics of the tool can somewhat reduce the range of use.

Controls

enjoy technical hairdryer quite simple, not only an experienced master, but also a beginner can cope with this task. The design of the tool is very simple and straightforward; all controls are located on the handle or on the side of the body.

In household models, the power key serves as a temperature regulator and has several positions. Sometimes this adjustment is supplemented by a smooth adjustment, displayed with a separate slider. Professional hair dryers are equipped with a block electronic control , in them the temperature is set special keys or a roller.

The air flow speed is not adjustable, it is tied to temperature and is set automatically. This solution is quite logical, because the heated coil needs to be cooled, otherwise the tool will simply burn out.

In general, this is all about tool management. In addition to the fact that a hot air gun is a safe device, its equipment often includes protective options designed to preserve equipment and protect the operator.

First use

After the first connection of the hot air gun to the network, it is observed foreign odor- This is normal for a new device. A heating element and the coil warm up, dust and lubricant residues burn off on them, and the specific aroma passes quickly.

Only the smell of melted plastic should arouse suspicion.

As the manufacturers indicate in the passport, before starting work, or upon completion, the tool must operate at a minimum temperature or in cooling mode for several minutes. This will eliminate sudden temperature changes and extend the life of the hot air gun.

Despite the safety of a technical hair dryer, you should not neglect the general safety rules:

the user must wear protective glasses and gloves;
all operations are carried out in well-ventilated areas; some materials, when heated, can emit harmful chemical fumes;
It is necessary to use various loops, hangers or hooks to protect the instrument from damage.

The main list of what can be done with a regular industrial hair dryer will be of interest to those who are planning to renovate a house or apartment. It is also recommended to watch several video reviews on the operation of a hot air gun.

How to remove paintwork

Removing paint or varnish is a very common operation for a hot air gun. If earlier this procedure required a lot of time, then with the help of a hairdryer the problem becomes a minor task. Using various attachments, the user removes the top coating from any material whose temperature or melting time is higher than the paintwork material.

For this removal method upper layers paint will require a working hair dryer at a temperature of 550 – 600°C. The hair dryer nozzle is directed to the treated area and held until bubbles appear. Afterwards the paint peels off and is removed with a spatula. The operation is easiest to perform on wood products (windows, fences, window sills), but it is more difficult to remove paint from metal. High thermal conductivity metal structure dissipates heat, reducing operating efficiency.

It is even more difficult to remove paint and varnish from plastic; such work will require considerable skill and good theoretical knowledge of the minimum and maximum melting temperatures.

Another popular area of using the tool in everyday life is connecting plastic pipes with a technical hair dryer. Using a hot air gun and a reflector attachment, you can lay a water pipe. High temperatures air will not only melt and glue the couplings, but will also help shape the pipe.

To achieve a strong connection, you need to correctly determine the moment of welding. Two parts of the pipe are brought to the nozzle and heated to a soft state at a temperature of 200-300°C. Afterwards they are connected to each other, holding for 30-40 seconds.

Seam welding

Bonding linoleum or PVC seams with a hairdryer is performed in several steps. First, the materials to be welded are adjusted, after which, at the gluing site, their edges are trimmed at an angle with any knife.

Apply to the future seam additive harness, then it is blown in the right place with a hot air gun at a temperature of about 300°C. When the composition becomes liquid, it is distributed along the seam as usual. rubber spatula and let dry.

Bonding films

Another example of why a hair dryer is needed is working with films. The material used is easily affected by temperatures, so all actions must be as clear and fast as possible. The film is welded overlapping, one edge overlaps the second by about 3 cm along the entire length of the seam. When working with such materials, it is enough to install minimum temperature, treat the gluing area, and then roll this area with a roller.

If the temperature turns out to be insufficient, the operation is repeated with a slight increase in productivity until the seam becomes strong.

The construction hair dryer is very popular among experienced craftsmen. The tool is widely used on a construction site, in design or repair. You can use it to make various crafts or decorative elements, weld, melt, dry or deform materials, construction compounds.