Polypropylene tubes are the most common material that is often used when installing the heating system. Polypropylene tube can withstand the effects of coolants high temperatures And it moves well in a few atmospheres inside the pipeline.
The lack of PPR pipes is that they are sold direct, and to create systems of complex configurations often need a pipe with a certain bend, which has to be done manually.
but experienced masters Repair often resort to flexion of pipes, and this does not cause problems with deformation or durability.
During the construction of a complex heating system, it is necessary to create structures of complex configurations.
Suppose B. apartment houseswhere each room has a separate riser and one radiator, the system is very simple. One pipe comes from the riser to the radiator, the second is back. Sometimes they are connected by the third. In this case, the bending does not make sense. It is enough to put the right connecting elements in an amount of 4 - 6 pieces.
Otherwise, things are in a private house where heating has to be laid from scratch, ranging from the boiler and bring pipes from basement Top, in all rooms. Sometimes it is difficult in this case to build a straight line system that will be deprived of turns and changing the height of laying pipes. You can set two folds in all places various pipesconnected by a special coupling, but it is laborious, costly and less efficient.
Another large range of bent polypropylene pipes - This is a warm floor system. The fact is that the pipes in this case are placed on a predetermined scheme, resembling a tubular electric heater of a washing machine or a serpentine in the bathroom.
Long time I did not write here! And it is possible to find a bunch of valid reasons ... and the main reason - was engaged in what they say to the radio - not the "format"! And now, I don't care about my desire, but as needed to repair the bathroom. Earlier, the repair was made in 2005, this date is exclusively in order to understand that then was available from available technologies and materials. I think that some idea are relevant now! For this reason, I decided to post a few articles, so to speak in reverse order, i.e. During the parsing ....
This first article is devoted to the issue of bending plastic panels when wearing premises in the corners. I think that this question can be well known to many, but there are also those who simply did not think over such an option to solve the issue, and it was exclusively the way that our industry offers and bought various corners provided for these purposes. In my opinion, the option proposed by me, firstly save funds (not to buy corners), in the second it looks more aesthetically, and in third, it allows you to preserve the integrity of the design. Maybe someone else will come up with positive qualities, I think these are quite enough!
And so, consider myself plastic panel! (For a demonstration, I used trimming, debris - shorter garbage)
To create an inner angle, it is sufficiently simply over the entire length of the panel to make a section from the "Initious side" of the required segment, which will continue to form an angle. The incision can be made by a simple building knife. The panel is cut fairly easy and simple.
As practice has shown, although a fairly simple cut, but a pair is still better to "choose the material" from this segment - as in the photo below. This is due to the fact that when the edges of the cutting edges can interfere with each other ... !!! Not necessarily, but I recommend !!!
It is necessary to bend carefully, smooth movements, gradually along the entire length so that the panel in this place is not broken. You can achieve a sufficiently large angle.
For exterior corner, It is required to "choose the material", not from one segment. This is due to the fact that there is an imposition of cut edges and they begin to rest and do not give the panels to bend.
If you do everything correctly not in a hurry and carefully, then you can achieve these results !!!
Wrapped corner
Outdoor
Attention, smooth and good corner, It turns out, in the event that on the walls that you enhance / enclose panels, normal angles are also displayed !!!
If you correctly heat the plastic, then it can be easily bent, one of the options simple adaptation To do this, consider below.
This device can be used for thermoforming plastics with a thickness of about 1/8 inches. In this way, well bend polystyrene, polycarbonate and PVC.
The base of the entire device will be a board of MDF, its size is unlimited, what size you need to bend, such a size and choose. For the heat screen of the heating element, the aluminum "P" shaped profile is well suited, it can be bought in any construction store, suitable size 10 * 10mm, 10 * 8mm. We screw the profile on the edge of the base sheet on the tapping screw.
For the heating element, we need a nichrome wire with a diameter of 0.2 to 1 mm.
According to the table "Calculation of nichrome wire for a heater", you can see the maximum amperezh to heat the existing diameter of the wire to the temperature we need 400-600 degrees.
We stretch the wire inside the profile, to adjust the height and direction we use a bolts with a hat under a flat screwdriver. The wire should not touch the plastic blank, the distance depends on the size of your profile and can be 1-3 mm. For constant tension of the heated nichrome, we set a sufficiently rigid spring, for example, from the printer.
For convenience of using the device, you can still set the switch, the connector for connecting the battery or power supply. It is very convenient to use a powerful adjustable power supply in order to smoothly adjust the heat (heating) of the wire. For example, this is: adjustable power supply 4000W AC 220V adjustment 10-220V.
How to work: Place a sheet of material on the fold line over hot wire and turn on the power. We still do not notice that the bending place is softened and began to bend itself. Quickly shift the workpiece on the smooth table and bend to the angle you need, keep so cool.
PVC pipeit is still used as the starting material for the manufacture of various crafts and homemakes. Sometimes the Master gives them a veiled curved form and final work after applying finish coat Even finished do not resemble the source material. In this master class similar technique We will demonstrate you.
Materials
To bend PVC pipe you will need:
In addition, you will need a device for flexible pipes. In this case, a piece of plywood was used with a dowel planted.
Step 1. Usually used for flexible pipes gas-burnerBut with its help you can give a pipe only a slight bending and only in a small area.
To work in such a way, significant segments of such a material are difficult. It takes a lot of time, besides, the pipe is often driving during the work, which looks not aesthetic.
To curb the pipe, as you see in the photo of the final work, it is necessary to be uniform heating from the inside. For this difficult operation, we use sand. So, the first thing you need to cut off the PVC tube a piece of the required length and clean the edge of the cut.
Step 2.. One end of the pipe must be flushed with scotch. The tape must completely close the hole.
Step 3.. With the help of a funnel in the pipe you need to fall asleep sand. Take it so much that the pipe is filled with them completely.
Step 4.. Measuring the desired amount of sand, pour it into a metal bowl and warm up. The sand should be hot.
Step 5.. On the hands put on the protective gloves. With the help of the same funnel, pour the prepared sand back into the pipe.
Step 6.. Close the second end of the pipe with scotch. It is necessary that the sand is not poured during the work.
Step 7.. Leave the pipe in this form for a couple of minutes. During this time, it warms up from the inside. The material will become soft and militant.
Step 8.. While the sand is still hot you can give a sliced \u200b\u200bpiece of pipes you need bending or shape. After that, remove the scotch and pour sand back.
Agree, it is quite tedious to separate the walls of plastic on the pre-constructed metallic and wooden frame. In addition, this method of wall decoration reduces the area of \u200b\u200bthe room. And although we are talking about some 3-4cm on each side, they still significantly make the room less. There are other flaws frame fashion Wall sheat plastic - PVC panels are not able to pass moisture and its pairs, as a result of which dampness, rotting and, as a result, the appearance of fungus is formed for such a false wall. Alternative frame technology Facing wall plastic is the installation of panels for glue - this method is deprived of almost all the flaws described above. We will deal with him in the most detailed way.
Yes, you did not hear. Far from each wall can be saved by plastic PVC panels. The conditions under which plastic is able to keep well on the factionable surface is not so much, but their non-compliance will lead to useless spending of means and time.
First, it is evenness of the walls. On an ideal surface that does not have any beyond curvatures, we are not talking about - permissible drops, pits and bugs should not exceed 5mm. If there are more, then plastic either will not stick, or breaks in places of large recesses.
Secondly, surface quality. It's no secret that no glue sticks to a dusty, dirty and oily surface. Therefore, before proceeding to the sticking of plastic panels, the walls need to clean well - flush with water, remove the dust with the primer, and the fat can be cleaned with detergents.
In principle, the facing of the walls of the plastic can be performed using different adhesive compositions - some wizards are used for these purposes of thermoclauses, which is applied with a special pistol, others resort to the help of contact glue type "Liquid nails, and the third are used for installation PVC Panels mounting foam, devoid of ability to expand.
In principle, all of the above glue compositions with the tasks assigned to them are coping with almost 100%, but some of them have their drawbacks. In particular, we are talking about a thermoclane. The fact is that the plastic has a considerable temperature expansion coefficient - the use of a hard locking glue, depriving the panel of a small free stroke leads to a gradual lag of panels from the walls. This does not happen immediately, but in the next couple of years, the thermocons will show its inconsistency for a long time and reliably hold the panel.
It is for this reason that the installation of plastic on the walls is better to produce liquid nails or on an unchanged polyurethane sealant.
This type of glue has sufficient plasticity so that in the process of cooling cycles and heating plastic does not break away from the surface. It is this glue for PVC panels and use most masters, more expensive by their reputation.
The process of cladding walls with plastic with the help of glue, as in principle, and all finishing work, begins with high-quality surface preparation. As it was written above, it is cleaned of dust, dirt and fat, after which it is richly ground. Such an approach to business is the capital's capital for everyone self-respecting masters.
Before cleaning and primer walls, it may be needed to perform additional work. The whole thing in the approach of the builders of the past era to their work is most of the corners of such premises, like a bathroom and bathrooms were made round. They will have to fill a little with a perforator. If it is impossible for any reason, it will have to repeat the turns of the walls with an accuracy of a millimeter.
Do you know how to bend the plastic panel over the entire length and do not break it? It is definitely not necessary to warm its powerful hairdryer, the back side of the panel is cut between ribbies and gently bends. In this way, almost any internal and even outdoor corner. In the formation of the outer angles of one slot, it will not be enough - it will have to cut the oblique segment of the wide-lying width of one and a half or two ribs. In principle, if the walls and angles are smooth, then you can abandon this idea, preferred by the factory angular compounds. In the case of angles of walls, bigger than 90˚, better than the bending of the panel will not come up with.
Well, now, now to the case, and for the beginning, we prepare the starting strip, which opens the plastic connection with the floor. You can do without it, but only if the installation of plinths is included in your plans. The same applies to the ceiling - if installation is planned suspended system From plastic, then from the installation of the starting profile under the ceiling can be refused.
Now the panel itself. It cuts up in accordance with the height of the room, the rear side is cleaned from dust with a damp cloth. Only after that you can apply glue on it. Depending on the curvature of the walls, the glue can be applied in several ways. If the walls can be called perfect, then the application of the adhesive composition is performed by the strips around the perimeter and the middle of the strip, but if the walls have curvatures, the glue is better to apply point, large drops. This approach to the case will be guaranteed that even in the depressions the panel will qualitatively stick to the wall surface.
The lubricated panel glue is applied to the wall. If we are talking about the use of liquid nails, it is tested and removed - such a glue must be twisted (5-7 minutes), it will make it more hard and will not give the panel to fall behind the wall until the glue drying is completely drying. With polyurethane sealant, such numbers do not pass - in the process of frosting this glue, the plastic band will have to periodically press to the facing surface. So no matter how cool, and better than liquid nails for gluing plastic PVC panels something else is difficult to find.
Here you have the answer to the question, how to fix plastic to the wall with the help of glue. It is in this way that their adhesive installation is performed. Well, finally, a small advice regarding the formation of external and internal angles. To be honest, then bother with them and use the factory compounds no sense. Most optimal option - Lining them with ordinary plastic angles that do not have grooves to insert panels in them. They are simply glued to transparent silicone, and its surplus is cleaned with a damp cloth. Depending on the curvature of the angles, it is possible to pick up the width of such inserts in the range from 20 to 50mm.
