How to preserve seedlings in a unheated greenhouse during spring frosts

You have a unheated greenhouse, and here as always, the unexpected spring frosts, what to do !? And the output is very simple - take a few bricks, and the more porous, the better. Imprelect them well some fuel liquid (kerosene, diesel fuel, etc.), put on a non-splashing stand (metal or concrete) near the greenhouse and burn. For heat supply, you can use a wide tin pipe, securing it at an angle to the top of the greenhouse to make it heat vest From cold air. Such a heater may well function throughout the cold night.

Save in the greenhouse during spring frosts It is possible with the help of another simple heater. To do this, at a distance of 3-4 m from the greenhouse, you need to slaughter a small fire. Then take metal pipe Appropriate length and put one end into the smoldering fire, and another to get into the greenhouse at a low angle to provide traction. In the other end of the greenhouse need to make a stretching hole.

How to connect the tolls of films

The film is welded with a soldering iron or an iron, glue with appropriate adhesives or simply stitched with threads. For the welding of the edge of the two panels, the films are superimposed on each other and through the fluoroplastic film is slowly carried out at the place of welding the side edge of a hot iron or a stable of well-heated soldering iron. If you do not have a fluoroplastic tape, you can use two narrow smooth metal stripes. To weld the film, the film needs to hold between these stripes and melted the protruding approximately 1 cm edge using an alcohol or soldering lamp.

Polyethylene film can be simply glued to the "moment" glue, pre-degreasing the surfaces glued with some solvent (acetone or a solution of chromium anhydride). For polyamide film, you can use PC-5 glue. After gluing the seam, you need to swallow to 50-60 ° iron.

The film can be sewed and sewed through the strip of thick paper to make the tightness of the strength. Small damage to the films can be simply sealed with scotch.

How to give the second life film

It is not necessary to throw out the old removed film with a greenhouse, it seems to be no longer possible. It can also be used and not directly intended, for example, around the perimeter of the beds in your greenhouse you can dig a groove with a depth of about the bayonet shovel (20-25 cm) and the same width with one vertical wall. Along this wall, put the strip of the old film of this width and fall asleep the groove along with the film of the earth. The result is an excellent protective barrier from rhizome pests and weeds. This barrier will serve you for many years, because under the layer of Earth, the film is protected from the sowing of its rays of the sun. The film for this, of course, should be used without damage and holes, if necessary, you can put it in two layers. Film stripes lay in a cleaner at 15-20 cm, the top edge of the film strips should be at the level of the soil surface.

Or such an option: Many gardeners use boards to form the edges of the beds. But after all, the boards in wet land quickly begin to rot and after a couple of years come into full dissent, actually turning into humus. But if you carefully wrap these onboard boards old film, they will serve you for many more years. By the way, the stakes that these boards are fixed, you can also wrap the old film, the ends should be carefully cut and gently score into the soil. At the bottom of the curved film will hold the Earth, and it can be kept on top of it with a scotch. Thus, a similar "hydroelected" design of the side of the beds will serve you for many years.

In the next article, we will tell you how to take care of the greenhouse.

Noticed a mistake in the text?

Highlight it with the mouse and press Ctrl + Enter

Site search

Sections of the site

Fresh articles

Fresh comments, questions and answers to them

• Uncle Cactus ON.There is nothing particularly terrible. You can leave like eats ...
• Maya ON.Hello, I have such a problem, my money is ...
• Svetlana ON.For the past on March 8, hyacinth with a bulb was gave. ABOUT…
• Evgen ON.The most common pests of flower-decor ...
• Uncle Cactus ON.Sure, not a problem! Succulents perfectly get along with each other ...
• Vladislav OonGood day to everyone! Please tell me,…

It is barely begins to harbor the February sun, many understand: it's time to fix a new film on greenhouses and greenhouses. But what if the existing sleeve is not suitable for dimensions? How to dock a film?

Until now, the gardeners are gardens solve this task with a firmware, bilateral bays of the joints of scotch, and most solder the film, heating it with irons, soldering iron and hair dryers.

All these methods at one time I tried and came to the conclusion that they are not entirely reliable: due to the fluctuations in temperature and wind, the polyethylene was connected by the above methods gradually begins to "split".

Device for connecting polyethylene film

You can only give a seam with high strength using open fire welding. I use this method somewhat recent years: The way simple, saves strength and time, can be used at any time of the year in street conditions, there would be no precipitation.

If there is a large amount of work, it is best to equip a place more comfortable: a spacious protected from the wind and moderately, it's good to install something like a table. To weld the small pieces of the film, you can do the pair of bricks installed on the concrete track or simply on the smooth soil.

I explain: on the table and bricks it is necessary to install a flat rack-substrate sufficient length (it should be screwed into with self-cuts to the table). On it, the canvas of the film will be located. The second will be required. wooden rail appropriate size

Pre-deployed and cut-out sleeve fell on the floor, and I impose another on it.

Film can be used different thicknessIt is important that the edges to be tailored to be cut off exactly (then the seam will be neat and high-quality). Then I transfer the film on the combined edge to the rake-substrate, and on top pressed the second rail. Carefully examine the release of the edges: it should be the same along the entire length. Approximately 1.5-2 cm.

Now, taking a burner, I pass it so that the flame slowly placed the edges of polyethylene released.

Otherwise, it's easy to burn a film, a rake can also catch fire. The burner leads smoothly as it is melted - a seekend. " From the fire of the edge of the film twisted, forming the influx. As soon as this influx is suitable for rake, the burner moves further - and so to the end.

Initially, it is worth reading, taking old pieces of film. I can now in a minute slowly cook 4-meter seam excellent quality. In addition to greenhouses, it is possible to make packages in this way, or, as they are also called, containers for seedling, that's just a film for them is needed black, more dense. Billets are cutting in a variety of different, including large for 4-5-liter containers, where the village is planted.

The only thing instead of the REKEK I use two pieces of an corner, setting them with the regiments to each other. Between them, from one end, they fix the bracket (see Fig.). After welding in the packages I make drainage holes.

Severev welding, from the polyethylene film it becomes easy to make shelters for bushes and small trees Under a certain size, strong garbage bags, bedspreads, etc. For these purposes, only a film with a thickness is not less than 150 microns.

Polyethylene welding can be performed in conventional, and in production conditions. Its fulfillment is most popular when creating a coating for greenhouses, where pieces of material are connected using the contact heating. Also, a soldering may be needed for book covers, packages for packaging, other needs.

The welding of the polyethylene film is performed by bringing the polymer material into a tight state. For this, its edges are heated to such a temperature at which melting begins, then they must be connected and squeezed. To make it right, you can use it specifically for this purpose invented device for welding polyethylene. The operation of such devices can be carried out in several modes that are set depending on the thickness and characteristics of the polymer and on its type.

Types of polyethylene compound

The most simple and low-cost method for the compound of polymer materials is the so-called contact welding of polyethylene. Thus, reliable compounds are formed, which are preserved during subsequent operation.

To perform, the connected edges of the polymers are heated by "hot air" or "hot wedge" to melting. The compression and formation of the seam is carried out roller elements specifically designed for clamping. The seam, obtained in the end, will be single or double, it has good strength.

The method called "Hot Air" is a heated air flow, with which the polymer softened and melts. For the same purpose, the heating part of the metal is used - "hot wedge". The contact of the elements and polymer is carried out from the outside, and with the inner, while the formation of good durable seams.

In addition to the contact method, the extrusion welding can be applied. When choosing such a method, the melted polymer is fed under pressure, the surface connected to each other changes the state from the dense per tight, and the squeezing helps to bore them with each other.

Back to the category

How is the connection of polymers "hot wedge"

In terms of production conditions, it is possible to weld the pieces of polymer with the help of a special apparatus. It is used to work with such types of materials such as PND, PVC, polypropylene and others like them.

This apparatus has the following principle of operation: wheels are started through the gear, by a tripod between the arranged sheets of the material are "hot wedge". In the thermostat device is given in working condition A system that automatically supports the desired temperature. It helps to ensure greater accuracy of work and reduces the likelihood of significant temperature fluctuations. Regulating the speed of operation is carried out automatically, in the electrical circuit, it is provided with a relatively stable voltage.

Such equipment complies with safety standards and provides greater convenience. Welding is carried out at a certain speed, which can be adjusted manually. The required pressure is transmitted through the presser rollers using a special lever.

The device allows you to get a double seam on a dense material, the strength of which is approximately 85%. The process is carried out automatically, manually need to adjust only the temperature and speed of the working element.

The device "hot air" can be described as a kind of industrial hair dryer. His advantage is lightweight. The device is suitable for use for a long time. The mechanism is very powerful, therefore the impact is quite effective. Its use is possible for such types of material as film PND, PVC, PVD.

Back to the category

How to perform welding at home

Polymer's own welding does not cost without appropriate equipment, tools that in most cases can be made independently from outdated household appliances.

Even the usual electric iron is suitable as the simplest, equipped with a temperature regulator. It will be useful and a soldering iron operating from electricity.

Using an iron, the compound of edges of the PVC film is made as follows. The table is laying a bar, made of wood and as vigorous. It is organized by the edges of a polymer designed for welding - they must be issued beyond lining material approximately 2 cm.

Squeeze on top of the film sheet Material, poorly melted: it can be fluoroplastic, paper, newspaper. Watch the paper not charring while working.

To speed up the connection of the edges of the parts, after the heating of the material, it is necessary to immediately cool this section of the film - prepare a piece of wet fabric in advance, which after heating it is necessary to get into the spacing polymer.

At the iron thermostat, heating should be exhibited 120-150 ° C. The temperature of the electricity operating apparatus is the main technological indicator that serves for right compound Polyethylene.

If you had never been able to perform polyethylene welding described, it is better to first work out a little. The sheets intended for welding the brass film are arranged on a flat surface, for example, on the tabletop, close the newspaper sheet or any paper on top. Iron Heat, slightly tilt and spend on the place where the seam should be. If the connection is obtained poor quality or is not even formed, check the temperature indicator.

From the first time, few people manage to get reliable and beautiful seam - type patience, and gradually everything will turn out.

The welding of the film is one of the working operations that sometimes may be necessary. With many types of works, pieces of polyethylene film requires tightly interconnected. Most often it is necessary for the construction of a greenhouse, greenhouses, installation of vapor insulation during construction.

To carry out some activities it is necessary to provide material sealed connection In order to obtain any product. When gluing polyethylene using tape or adhesive substances will not produce high-quality hermetic junctions, so if necessary, welding uses welding.

For welding polyethylene film there are many ways. The operation itself is a fastening of the layers of material with heating, creating a comfortable temperature for melting. When compressing layers is formed welded Sow..

Polyethylene welding occurs as follows: The layers during heating change the structure, connected on the molecular level, after cooling, a durable seam is formed.

To glue polyethylene filmThe layers should be cleaned well - with any contaminants, the strength characteristics are much reduced.

In the melted mass, foreign impurities are transmitted, which violate the molecular structure in the seams.

For high-quality compound with high strength must be observed the following conditions:

• when welding the film, its pieces should be homogeneous belonging to one batch;
• surfaces must be clean;
• temperature regime when working correctly - with insufficient warming, the strength deteriorates, with excessive - the joint and the prewatest site is deformed;
• when heated, sufficient compression should be ensured.

To connect pVC film Qualitatively, it is impossible to re-welding the edges of the material. If you need to make such an operation, pre-cut damaged edges.

Both in the implementation of construction operations and under household needs, such compound methods can be used:

• welding soldering iron supplied special nozzles - he acts like homemade apparatus for welding;
• docking when heated, film melting iron;
• the desired layer temperature is achieved by means of the degree;
• industrial equipment is used to warm the seam.

You can try to warm up the film with a hairdryer, then tightly connect the surface to gluively with each other, and better put under the press.

Welding film soldering iron

How to glue a polyethylene film with a soldering iron? This method can be safely attributed to the most common - the tool is easily accessible, allows you to get a good result, and with a small refinement of the soldering iron, the effect can be improved.

It is necessary to take into account that without refinement it is not always possible to perform a dense connection - the joints can be uneven, the material spreads.

So you can glue the film for the greenhouse or make a canvas for other needs. Only with very small amounts of work can be recommended for use pVC connection soldering iron. After a short revision, it turns into a convenient and easy-to-use tool.

Iron as a welding heater

How to glue a film using an iron - the simplest household appliance that is in every home? Everything is very simple - the work lies in the melting of polyethylene and the creation of joints with the help of a heated ion sole.

Improvised welding machine From the iron allows you to connect extensive sections of the film. In this case, the seams can be performed with a certain width. All modern irons have a thermostat that allows you to adjust the heating temperature.

• Before gluing the film, provide a comfortable place to work - the wooden smooth surface is best suitable.
• Film laid mustlest upper layer They are covered with fluoroplastic or paper, the iron sole is pressed and lead along the welding line.
• Experimental ways are determined by the speed of the clamp, the force, the temperature is selected.

Professional Tools for welding

To connect the film at home, you can make a variety of tools with your own hands, but they are only suitable for performing small work. If necessary, a large-scale production is commercial activity, the creation of a greenhouse or greenhouses - the use of these devices has the greatest effect. No glue possesses the same abilities.

The welding process is performed faster, professional devices allow you to configure the necessary parameters Pressure, speed of promotion across the welding seam, temperature.

In most professional devices, there are stretch and specifying roller elements that stretch the film at an optimal speed, which has a beneficial effect on the quality of the seam.

In the construction of the polyethylene film is used mostly as a waterproofer or heat insulator, if it comes to film greenhouses. It has polyethylene and certain sound insulation properties, but insufficient to use it as an independent soundproofer.

For gluing polyethylene, it is necessary to purchase such glue in advance that are used to glue the plastics.

Is it possible to glue polyethylene?

When waterproofing or greenhouse, it is often necessary to glue several pieces of polyethylene to get a film desired size. But how to glue a polyethylene film, and is it possible to do this at home?

The question is not so simple, as it seems initially. From the school year of chemistry it is known: the higher the polarity of the polymer material, the better it gives up gluing. Polyethylene molecule recorded by chemical symbols is very similar to a long chain consisting of the same links - CH2-. Such a monotony indicates that electrical charges inside the polyethylene molecule are uniformly distributed, i.e. She is not polar. Therefore, polyethylene gluits very badly.

Welding polymer film: a - with the help of the electric machine; b - with the help of a root for electric car; in - open flame.

Very often, glue mixtures are used to glue polymeric materials, which are prepared from the same materials (or similar to them) dissolved in a suitable solvent. But with polyethylene it will not pass - it is practically not dissolved in organic solvents.

Some polymers can already be gluable because they have a rough surface. In this case glue solution Fills irregularities and, frozen, clings for them, gluing pieces of material. But with polyethylene it will not do so, since it has a perfectly smooth surface.

Therefore, if we talk about the gluing process, it is almost impossible to glue the polyethylene film at home. Yes, and in the industrial it still never glued.

But although the pieces of polyethylene and can not be glued, but they can be welded, or, which will be more accurate - to discharge, which is successful and make many years in industry, developing many ways of such welding. But from this set of ways there are only two that can be applied at home.

Back to the category

Polyethylene welding Hot subject

Welding a film with an electrician: a - seam view; B - Electric machine device for welding film.

It is most convenient to do such an operation with a metal roller with a heating device inside. But to make such a device at home, you need to have a sufficiently high electrician qualification.

Therefore, the People's Makeup found quite satisfactory replacement to such an instrument - normal Iron. Since polyethylene film different marks melts at different temperatures, then no specific recommendations for temperature regime Welding can not be welded.

The heating temperature of the iron for welding will have to be determined by samples and errors. If the temperature of the iron turns out to be insufficient, the film does not boil, if the iron is warm too much, the seam will turn out to be "divesed", weak, and the film on the sheds of the seam will be easy to rush. The only thing that can be advised is initially - the iron should not be too hot.

Spike technology itself is very simple. To make seams neat and smooth, the spike is better to produce on a flat wooden surface. The edges of the film must be put on this surface with a small adhesive on each other (0.5-1 cm). Alto the allen and you need to hold the nose or edge of the heated iron. The passage must be no more than a second in one place, otherwise they disappear.

PVC film can be found in the yellowish tint of the edge of the roll.

But with this method, the spike has one very important negative point: the warm-up polyethylene film very often sticks to the iron. So that it did not happen, it is better to cover with a polyethylene seam with a thin sheet of cellophane, and then go through it iron.

Spike strength can be checked by simply pulling the paved pieces in different directions. If the seam diverges - it means that the quality of the soldering is unsatisfactory, and it is necessary to repeat everything from the very beginning. Some craftsmen perform this spike not iron, but a knife with a hot blade, claiming that they are so handy. But this is a matter of taste.

Back to the category

Polyethylene welding with open flame

For the reconciliation of polyethylene this way will be needed:

• metal or ceramic bars;
• welding tool (it can be gas-burner, blowtorch, Alcohol, and for incurability of these, you can use rachin or even ordinary matches).

Electric schematic scheme Connections "Iron" to the network: 1 - permanent wire resistor; 2 - metal case; 3 - plin-horse; 4 - textolite handle; 5 - Stand.

The edges of the welded films must be fixed with metal or ceramic bars (wooden for these purposes will not fit). It is necessary to fix in such a way that in the place of the welding of them it was seen a narrow strip of the film (3-5 mm, not more). The bars are needed not only for fixing the film, but mainly in order to quickly take the heat from the welded films, otherwise they instead to melt, burnt the whole.

Next you need to spend along the remaining open edge of the flame. The speed of movement of the flame will also have to pick up the experimental way, especially since it will be different not only before each brand of polyethylene, but also for each tool too. If the operation is performed correctly, it is formed a dense roller, firmly connecting two edges of the plastic film.

As an alternative to welding, with the device of greenhouses and greenhouses, two pieces of polyethylene film can be sewn. To do this, two pieces of films are put on top of each other. The backstage should be 2-2.5 cm. Then put an ordinary medical plaster on both sides to the place of the allen on both sides. It will be bad, but it is not scary, the main thing is that the strips of the plaster lay exactly at the place of adhesion alone over the other.

Then the allen make two seams of large stitches. Slices of film in this case are fastened with the help of stitched threads, and the plaster, having a stronger material structure, does not give threads to tear polyethylene. However, for waterproofing, this method is not suitable, since the seasions of the seams will pass moisture.

It should be noted that both welding methods are suitable only if it is necessary to connect polyethylene polyethylene.

If there is a need to glue the film to some other material, you will have to look for a transparent film from another material that is better glued, and to work with which there is special adhesives. Alternatively, it can be a polyvinyl chloride film.

Connect the polyethylene film in the described methods or search for something, a new one - to solve you. The main thing is not to be afraid to experiment, because if something can not be done today, it does not mean that it will not be done tomorrow or the day after tomorrow.