Working with a technical hair dryer. How to remove old paint. Types of nozzles for a hair dryer: for soldering plastic, welding tip, etc. Do-it-yourself nozzles for a hair dryer

Many types of construction work have not been completed for quite some time without the use of forced hot air flow functions. These characteristics are increasingly required in the use of new high-performance materials 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, a construction hair dryer is supplied with one to several specialized attachments for various types of work. 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 the purchase of certain professional-level models, which are quite expensive. Having a larger number of attachments makes it possible to perform many 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.

The existing list of the most common nozzles on the construction market includes:

• round focusing head(1) – most often intended 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 deforming polystyrene boards (under the supervision of a specialist), PVC structures and plastic products. For example, if polystyrene or plexiglass plates were deformed;
• reflex nozzle(3) – heats up plastic pipes before further deformation;
• crevice or spline nozzles(4) – used when welding PVC products using the cap method;
• carved (cutting) attachments(5) – such a nozzle was once developed for performing figured or straight cutting of foam plastic;
• glass protection 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;
• wide jet nozzle– this 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 attachment 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.

DIY nozzle for a 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 his 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-angled triangles on all sides, then bend all the resulting parts inward, as in the pictures.

Welding is used to connect the holes, which is subsequently cleaned:

To make a flat nozzle, you just need to hit the pipe several times with a hammer until the desired shape is obtained.

When choosing a construction hair dryer, you should take into account that its kit rarely includes all of the listed types of nozzles, since the work requires different volumes and power of air driven. Therefore, it is worth thinking in advance about the types and purposes of the upcoming work.

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 operates from an 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.

A construction hair dryer can smoothly regulate the temperature, which is very convenient when processing various material surfaces. 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 nozzles allow you to solder copper pipes and profiles; they are also used when welding cracks 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, when heated, begin to emit harmful substances, and some may catch fire.

The practicality and safety of using electrically powered manual heating equipment has been proven many times, but today we will not talk about it itself, but about additional devices and the operations performed with their help.

Yes, yes, you understood everything correctly - today we will talk about what attachments exist for and how to use them.

Use of additional equipment

Depending on the purpose, there are several types of tools. Let's look at them in a little more detail.

Construction hair dryer with attachments

The first type is a wide nozzle. Used to heat and remove old paint from a wooden surface. Removal is carried out using a spatula or scraper included in the kit. Sometimes the nozzle also has a platinum in the form of a scraper, which can be used to remove old composition during the heating process. The advantage of the tool is that one hand of the worker remains free.

The second type is a ring with a mirrored rounded screen. It is used with a jet of hot air directed upward to heat and bend plastic or copper tubes. The tool is also convenient if it becomes necessary to heat up and unscrew a heating or water supply pipe located fairly close to the wall, when there is no easy access from the back side.

Hair dryer attachments

The third type is round nozzles of various diameters. Used for spot heating of an object.

The fourth type is a nozzle flattened at the end, reminiscent of the tip of an electric soldering iron.. As an option, this attachment is used on a construction hair dryer for welding polypropylene or polyethylene. That is, sheets of the first or two films of the second are laid overlapping, then heated with a “sting” while simultaneously moving the hand evenly along the entire length of the joint. Polyethylene can additionally be rolled with a roller.

Fifth type - nozzles for a construction hair dryer for rod welding. They are used when sealing, for example, plastic containers, parts of washing machines or joining sheets of plastic when you need to get a flat surface. Outwardly they resemble the previous type, but the tip is somewhat narrower and a tube is welded to it on top, through which the rod is fed.

Read more: Handheld pool vacuum cleaner - operating instructions

A small note. When soldering in this way, it is necessary to use rods made of the same plastic as the surface to be soldered. Otherwise, the connection of dissimilar materials will not last long, or worse, it will not “set” at all.

The instructions do not always reveal all the nuances of how to use a hair dryer. This multifunctional tool is useful in a variety of areas of life and will prove very useful in production. Its main function is to warm up and direct air masses. Replaceable nozzles are used as auxiliary elements, designed to accurately supply a stream 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;
• defrosting 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 major or cosmetic repairs, why they most often buy it. The complete list of possible uses of a construction hair dryer can be expanded and supplemented with clarifications, but the general idea will not change.

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

Controls

Using a technical hair dryer is 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 with 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. The heating element and 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.

This method of removing top layers of paint will require a hair dryer running 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. The high thermal conductivity of the 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 air temperatures 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, spread it over the seam with a regular rubber spatula and allow to 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. With its help you can make various crafts or decorative elements, weld, melt, dry or deform materials and building compounds.

A technical or construction hair dryer occupies not the last place in a home craftsman’s tool kit. Using a hairdryer, you can easily remove old paint, dry surfaces, defrost water in the pipeline, and give plastic parts the desired shape. A hairdryer is indispensable when laying roofing felt - a hairdryer can be used to cut the roofing felt, heat it up, or melt it. A hairdryer is used when installing heat-shrinkable insulation, welding linoleum, and when soldering with tin or silver.

If you really want to, you can make a technical hair dryer with your own hands, but the problem may arise already at the first stage - what to make a reliable and safe case from. If there is a sufficient selection of hair dryers on sale, it is better to buy a ready-made hair dryer.

Be careful when working with a technical hair dryer. The hair dryer heats the air from 300 to 600 degrees. Protective gloves will save your hands. When paint softens with hot air, toxic substances are released. Wear a respirator with a carbon filter.

Use a technical hair dryer correctly, then it will serve you for a long time.

• Do not overheat the hair dryer while working; take a break from working every 10-15 minutes.
• The closer you hold the hair dryer to the surface being treated, the more it overheats.
• Do not immediately turn on the hair dryer to maximum operating mode.
• Before turning off your hairdryer, turn it to low heat to cool it down.
• Hair dryer attachments get very hot, so don't place your hair dryer on surfaces you don't want to damage.
• Do not change the attachment until it has cooled down - you may get severely burned.
• When removing paint from a window frame, unfasten the glazing beads and remove the glass. Glass can easily crack when exposed to a blast of air.
• Be careful when cleaning old paint from the floor. Hot paint particles can fall between the floorboards and cause a fire.

DIY hair dryer repair

All electrical tools tend to break. If there are minor problems, you can repair the hair dryer yourself. The main working parts of a hair dryer are a heating coil, a fan, and an electric motor.

• Try to find the cause of the problem. Perhaps the power cord is broken, or the wires are burnt, or the coil is burnt out.
• Arm yourself with a screwdriver, soldering iron, find the hair dryer diagram, which is in the instructions for working with the hair dryer.
• Prepare the surface on which you will disassemble the tool.
• Remember in what order you disassemble the hair dryer. It is very good to use a camera to photograph all stages of disassembly. This will help you not to rack your brains over where to place the extra parts left after assembly.
• Start by checking the plug, power cord, and contacts. Replacing the cord, buttons or soldering wires is not difficult if you have certain skills.
• If the motor or fan breaks down, it is better to take the hair dryer to a workshop.

Nozzles for technical hair dryer

For ease of use, there are special attachments for a technical hair dryer. The nozzles are made of steel and can withstand high temperatures.

The sales kit also includes devices that will help remove paint from hard-to-reach places.

There are nozzles for welding, soldering and heat shrinking of pipes. A reflective nozzle is suitable for soldering thin pipes.

To heat and bend a plastic pipe, use reflex nozzles.

A wide flat nozzle works well for removing old paint from a surface. Protective and reducing nozzles are used to remove paint from a window - they help direct the air stream to the right place and protect the glass from overheating.

How to remove old paint

There are many chemicals available to remove old varnishes and paints. The composition is applied to the surface to be treated, after the paint has softened, it is removed with a spatula. The disadvantages of this method include the pungent odor of the chemical composition and the inability to efficiently remove paint from large areas. Old paint is difficult to remove even with advertised chemical paint removers.

You can clean the surface mechanically using a grinder or grinder with special attachments.

Removing old paint using a hair dryer is more practical and convenient compared to other methods of cleaning surfaces.

For work you will need

• technical hair dryer
• extension
• hair dryer attachments
• spatula and special tools for scraping paint
• brush
• protective equipment - gloves, respirator

Don't hold the hair dryer too close to the surface. Warm up small areas from a distance of 5-10 cm. When the paint begins to bubble, it must be removed with a spatula. A spatula, unlike a spatula, is more rigid and is more convenient for removing peeling paint. You can take a narrow spatula.

Do not heat a large surface at once. For ease of use, take an extension cord. Paint is easier to remove from wooden surfaces than from metal or plastered and painted surfaces. Ventilate the room often.
Hold the hair dryer by the handle and do not cover the air intake holes with your hand - it can quickly overheat. When removing paint from a window, it is better to remove the frame - it’s more convenient to work and it’s easier to get to hard-to-reach places on the window block.

Hold the hair dryer in your right hand, directing the air flow to the desired location. When the paint begins to swell and bubble, use your left hand to immediately remove the softened paint using a spatula.

Use a brush to remove small frozen pieces of paint.