Types of mesh fences. Steel mesh and its types. Welded masonry mesh, or armored belt
Since it is widely used in almost all industries, including Agriculture, construction, engineering, etc.
Depending on the material from which it is made, the steel mesh can be stainless, steel and galvanized with polymer coated. Exist different ways its manufacture, as well as its thickness. Currently producing:
- woven mesh or netting,
- galvanized
- welded steel mesh
- woven or plaster,
- cut-out.
A steel mesh is usually called a product made of metal in the form of a woven or woven fabric. The material for it is steel wire, which is twisted into cells different shapes and size. With the help of such a grid, bulk products are sorted and filtered. liquid materials. It is used for strengthening slopes, as well as for screeding and reinforcing walls in construction industry. Fences, fences, animal cages, etc. are made from steel mesh.
Grids of various types are used in various purposes, they have their own characteristics in use and manufacturing specifics.
Woven mesh (netting) is produced without heat treatment on special machines with a manual or automatic drive. On them, wire spirals of low-carbon wire are intertwined. The wire can be galvanized or PVC-coated. Chain-link sift bulk materials and filter solutions. Fences, aviaries, fences, etc. are made from it.
Galvanized steel mesh is a durable and reliable material. It has high strength and is resistant to moisture, aggressive environments and temperature fluctuations. Due to these qualities, it is used for the construction of fences and fences, aviaries and cages. It strengthens thermal insulation coatings and is used for reinforcement brickwork. Such a grid is used when it is necessary to obtain fine fractions of bulk building materials.
The material for it is low-carbon steel wire with a thickness of 0.6-2 mm. In the construction of roads, a grid with dimensions of 50x50x4 is technologically practical. The wire in it is connected into square or rectangular cells by the method contact welding.
Woven or plaster mesh is used during plastering works. With its help, the surface of the walls is leveled and solutions are filtered. It is made from high-alloy and low-carbon steel wire, which can be either galvanized or not galvanized. This fine-mesh woven mesh, resembling woven fabric, is often used as a sieve for bulk building materials.
The material for the expanded metal mesh is a solid sheet of metal with a thickness of 0.5-2 mm, in which cells are cut and stretched. Mostly low-carbon stainless or galvanized steel is used. The grid is used during plastering and puttying works. Fences, cages and aviaries are made from it.
By cutting through and, which allows you to maintain the integrity and volume of its structure. PVA - inexpensive look mesh with good reinforcing properties. It is often used when laying a warm floor.
The cells of such a grid have the shape of a rhombus; the thickness of the PVA can be different. It is determined by the cutting step and the thickness of the metal.
Welded mesh
For the manufacture of a welded mesh, a smooth wire is used, its rods are arranged mutually perpendicular and welded spot welding. This structure makes the mesh and its products rigid. Cells are square or rectangular shape. The cell parameters and , the grid type are selected depending on the type of work for which it is intended.
When choosing a mesh, check the quality of welding - this is the main parameter of its strength. Welding must withstand the load in the form of bending.
For plastering work, an uncoated mesh with cells measuring 12.5x12.5 mm, 12.5x25mm or 12.5x25mm and wire 0.6 and 1 mm thick is suitable.
When installing underfloor heating concrete screed reinforced with a mesh of uncoated wire 0.6-1 mm thick with a mesh size of 12.5x12.5 to 20x20 mm.
For fences, a mesh made of thick wire with a galvanized or polymer coating is used. Cells of the product can be 50x50, 50x100, 100x100 mm.
plaster mesh
In construction, a plaster mesh is used to strengthen the layer of plaster inside and outside buildings, to insulate pipes and filter loose substances.
A metal plaster mesh is made from a sheet of metal in which rhombuses are cut through. They are then stretched into cells arranged in a checkerboard pattern.
In addition to metal plaster mesh may be plastic or fiberglass. They are used for painting, plastering and facade work.
mesh wicker
Woven mesh or netting is widely used to create fences, build cages and aviaries for animals, for thermal insulation works. It is made from low-carbon steel by the method of interlacing flat spirals. Grid cells can be in the form of a square or a rhombus.
The highest quality is a chain-link with a polymer coating. Such a mesh will last a very long time, as it is not subject to corrosion.
The strength of the netting depends on the size of the cells and the diameter of the wire. The larger the wire diameter and the smaller the mesh, the stronger the mesh.
IN modern times metal mesh is used in various industries and in household. You can’t do without it when preparing the foundation or building a house. It is also used in the process of laying walls, as a bonding link, and for the manufacture of fences. It is highly valued due to its unpretentiousness to weather changes, durability and strength. This article will discuss the types and subspecies metal meshes, their advantages and purpose. Now on the market you can find the most various brands metal meshes of different quality, for example StroySetka offers building nets High Quality at affordable prices.
There are 4 main advantages of metal meshes:
1. Its simple structure makes it easy to operate.
2. Convenient packaging in cards / rolls and light weight greatly simplify installation, transportation and storage.
3. Resistance to temperature extremes and precipitation.
4. Excellent strength characteristics, thanks to which the grid is usually operated for many years, retaining its original properties.
Types of metal meshes
There are the following main types of metal meshes and their subspecies:
Mesh chain-link (woven neo-galvanized in PVC, woven in PVC, wicker non-galvanized netting, galvanized wicker netting);
Expanded all-metal mesh, which is uncoated and galvanized;
Welded mesh (made of VR-1 wire, galvanized wire, hot-dip galvanized in rolls, non-galvanized heavy-duty winding, in galvanized wire cards, non-galvanized in PVC, non-galvanized in LEPSE-Lux PVC, non-galvanized in rolls);
Woven mesh (stainless "micro", non-galvanized, stainless GOST 3187-76, stainless GOST 3126-82).
Rabitz
Due to its versatility and high level strength mesh netting is used in different areas: to create fences, metal beds, reinforcement when plastering, etc. This material is characterized by a long service life: up to 50 years in normal conditions, and 7-10 years under aggressive conditions. This type of metal mesh is quite easy to care for, while it retains an attractive appearance for a long time. Such a mesh is inexpensive, even despite its advantages (the cost will depend on the diameter of the cells and the thickness of the wire).
TsPVS grid
This type of mesh is one of the substitutes for woven plaster mesh. Experts consider it an alternative to conventional metal mesh. It is made by expanded metal and is used in many areas. During technological process no material is lost in its production and a minimum amount of waste is generated. It is produced with and without zinc coating. Consider the scope of its application:
Reinforcement during plaster work;
During the facade and facing works natural stone and tiles;
Flooring of building scales and platforms, and in industry for screening rocks and making containers;
Creation of original design;
Production of trays in the industry (food), cages;
Production of tractor and car filters, ventilation grilles.
Among its advantages are: excellent adhesion to the surface, transparent structure, flexibility, high strength, structural integrity.
Welded mesh
Metal mesh (welded) is the most the best option for reinforcing concrete / brick structures, as well as for the installation of various fences. Let us consider in more detail its varieties and their purpose:
From wire VR-1, a galvanized mesh is suitable for creating cages / aviaries in a fur farm;
Reinforcement mesh in maps is best used for reinforcing structures (concrete);
Welded mesh (galvanized) in rolls is suitable for plastering and temporary fencing;
Mild steel products in maps are often used for the installation and reinforcement of floor screed.
Mesh woven
This type of metal mesh is a structure that consists of strong alloyed / low-carbon wires (up to 3 mm in diameter). To make it, the method of weaving strands is used. The strands are perpendicular to each other. The mesh size of the woven metal mesh is up to 20 mm. This product is supplied in rolls.
It is made on special equipment, by resistance welding of several metal wires located perpendicular to each other. The mesh comes out of the machine in the form of a web, 2 to 3 m wide. Then this wide web is cut with circular knives into strips of the desired length. Well last stage The production of welded mesh is its folding into rolls, by winding it on special spools.
There are truly a huge number of applications for welded mesh: from the manufacture of cages and aviaries for animals and birds, to the reinforcement of concrete and the strengthening of brickwork. We will not list all these areas, but will focus on the main ones:
1) Production of cages for animals and birds. Typically, the mesh from which cells will be made must meet certain parameters:
- high corrosion resistance;
- strong welded joints;
- the correct geometry of the cells along the entire length of the roll;
These requirements for the mesh are due to the fact that animal droppings are a very strong catalyst for corrosion on metal, which means that the zinc coating of the wire must be thick enough. The geometry of the cells also plays an important role, since an uneven cell can not only injure your pet's paws, but also prevent the litter from falling out of the cage freely. And, of course, it is worth mentioning the strength of welded joints, because it is thanks to high-quality welding that the mesh does not lose its properties during operation.
2) Construction of fences and enclosures.
If you decide to protect your site, welded mesh will be the perfect solution to this problem. Installation of this type of fencing is possible with a minimum set of tools and building skills in general. Fences made of welded galvanized mesh or PVC-coated mesh have a number of advantages over any other fences:
- ease of installation;
- no need for periodic maintenance;
- a welded mesh fence does not obscure the fenced area and does not interfere with its ventilation;
- long service life and high reliability of the fence;
- beautiful aesthetic appearance fences.
And so we see that the welded mesh fence has quite significant benefits in front of fences from the same chain-link mesh, or with a wooden picket fence.
Installation of a fence made of welded galvanized or PVC coated mesh is quite simple and can be divided into several stages:
- Installation of fence posts: wooden or metal posts are concreted into the ground to a depth of 0.5 to 1 m, depending on the height of the fence.
- Installing the grid on the posts: the grid is attached to the posts using clamps or special fasteners. A prerequisite installation of such a fence is that the mesh cannot be immediately pulled strongly. It should be evenly adjacent to the posts along the entire length of the fence, and the mesh will be stretched a little later.
- Mesh tension: It is worth noting that the tension of the welded mesh is quite specific. The mesh attached to the posts begins to be stretched by bending horizontal wires along the centers of the cells, so the horizontal lines of our fence take on a wavy look, and the mesh is evenly stretched along the entire length of your fence.
3) Reinforcement (strengthening) of walls, self-leveling floors and plaster. No construction is complete without concreting, plastering, or bricklaying. Also, no construction can do without a welded mesh, thanks to which walls and floors are given additional rigidity, and when plastering walls, the mesh also acts as a frame, thanks to which the mortar that has not yet hardened will perfectly adhere to the walls. In construction, galvanized or black welded mesh is mainly used, while the cell is selected based on the work being done.
Welded roll meshes also differ in the type of anti-corrosion treatment. If the production task is to protect the grid from negative impacts external environment- the wire is pre-galvanized. The zinc layer effectively resists any aggressive environment and perfectly protects the mesh from premature corrosion. In addition to galvanizing the wire, it has become increasingly popular to protect the mesh by applying a green PVC layer on it. This material is somewhat reminiscent of hard rubber, it tightly and evenly envelops the entire mesh fabric, so that the mesh does not corrode and has a long service life. A feature of this mesh can be called the fact that PVC gives it additional rigidity, and this, in turn, allows you to save on the thickness of the wire and on the price of the mesh as a whole. Main advantage PVC coating, before the same galvanizing, is that the mesh gets very aesthetic appearance. It was the desire of people to make the fence less visible against the background of trees and other vegetation that served as the main impetus for the invention of PVC-coated mesh.
Welded masonry mesh, or armored belt
This type of mesh is made using the same contact welding method, with the only difference that the masonry welded mesh (armor belt) is not wound into rolls, but remains in the form of cards. 
This is done on purpose to make it easier to work with it. Also, in the manufacture of masonry mesh, not a smooth wire is taken, but the so-called "variable profile wire VR-1", with a diameter of 3 to 20 mm. Such a wire has transverse notches along its entire length, giving it additional rigidity.
The equipment on which the armored belt is made is also different: the voltage applied to the electrodes is higher than in the manufacture of rolled welded galvanized mesh; the machines themselves are much simpler and cheaper, due to the fact that the requirements for the masonry mesh are much simpler.
There are not so many applications for masonry welded mesh, or armored belts - mainly reinforcement of concrete floors, foundations, plaster layers and the manufacture of reinforced concrete.
When buying reinforcing meshes, you should pay attention to several parameters, such as:
- Actual wire thickness: do not forget that the characteristics of the mesh written in construction stores on the price tags do not always correspond to reality, and in our time the vast majority of manufacturers take the opportunity to underestimate the actual thickness of the wire, thereby lightening the mesh and reducing its reinforcing properties.
- Actual mesh size: As with wire thickness, mesh size directly affects the strength of the mesh fabric and the reinforcing properties of the masonry mesh as a whole.
- Strength of welded joints: this parameter, I think, does not need to be described, since its name speaks for itself. Strong welded mesh connections are the key to a solid foundation for your home and you should not save on this.
Summing up the information about the welded masonry mesh, I would like to note that the armored belt plays an incredibly important role in construction, because this mesh itself is the “skeleton” on which our houses, garages and office buildings. Therefore, if you want to build a really solid house, or make high-quality concrete floors in workshops and industrial premises- choose only a high-quality mesh that will provide the necessary reinforcing properties!
Wicker mesh, or "Rabitz" mesh
I will not be mistaken in calling this grid one of the most common on the entire planet. After all, each of us, almost every day, sees it on fences, anti-vandal fences of pillars and simply on the windows of hardware stores. Due to the simplicity and low cost of production, the chain-link mesh is an excellent building material. It is made of black, galvanized and PVC coated wire. Often has a height of 1 to 2 m and a length of about 10 m.
Let's look at the main areas of application of this so popular grid:
1. Production of fences and protections.
This area of application is the main one for this grid. And this is not surprising, because the "chain-link" is inexpensive, it is impossible to tear it, thanks to the peculiarities of its manufacture. A fence made of such a mesh perfectly passes air and does not obscure your site, and its installation is not much harder to install a fence from a welded rolled grid.
2. Production of enclosures for animals and birds.
"Rabitz" has a very wide range of its cells (from 12x12 to 75x75mm) and the wire from which it is made (from 1.5 to 4mm), which makes possible application this mesh when constructing aviaries for keeping birds and animals of almost any size. IN established form, the fabric of the "chain-link" mesh has a rather elastic appearance, so even the largest animals, leaning on it, will not break the mesh.
As in the cases with welded mesh, the main thing you should pay attention to when buying a "chain-link" is the actual thickness of the wire and the size of the cell, as well as the quality of the application protective coating(hot galvanized or PVC coated).
The hinged mesh appeared relatively recently, but it immediately received a very wide use, thanks to its main feature- there is not a single rigid wire connection in it! However, these are far from all the trump cards of the hinged grid, it is also worth noting its cells, which change their size from smaller to larger. And so, what is a hinged mesh, and what is it used for.
Hinged meshes are made of wire, galvanized strictly according to GOST3282-74. Wire is fed into special machines, which forms horizontal threads of the grid, in turn, vertical threads are obtained from another wire, which makes several turns around a horizontal wire. Thus, the hinged mesh has no welded joints, which makes this mesh very strong. At the same time, its production is less costly due to energy savings on welding equipment, etc.
Particular attention should be paid to the cell in the hinged grid, because it gradually increases from the bottom edge of the roll to the top. This is done for this: the installed mesh has small cells below that do not let small animals through. As you move to the top edge of the roll, the cell increases. It was the desire to reduce the cost of the mesh by rationally changing the cell that led to the fact that the hinged mesh began to have a number of undeniable advantages in comparison with other fencing materials: it became very durable, its price dropped significantly.
Thus, the hinged mesh became best solution when fencing large areas (fields, forests, nature reserves), because it fulfills all the requirements for a fence - it does not allow small or large animals to enter the fenced area, while it does not obscure or interfere with its ventilation. And add here also an increase in the distance between the posts up to 3-3.5m, and you will get incredible savings on the fence, without any harm to quality.
By the way, poles for hinged nets are also unusual, primarily because they are often made of solid logs and installed at a great distance from each other. This was achieved thanks to reinforced wires running along the upper and lower edges of the roll, and allowing the mesh to be stretched with great force.
Canned mesh, or corrugated mesh for screens
Another kind of grid with a rather interesting specifics of its application. The peculiarity of the canned mesh lies in the method of processing the wire before its manufacture, namely, in the so-called "zigovka". The process of beading is quite simple: the straightened wire passes between the gears, which give it a wavy profile with a given bending step. After the wires have been given the desired wave-like profile, they are intertwined with each other on special machines, so that the points of contact fall clearly on the concave part of the wave. As a result, we get a grid map of the dimensions we need, the wires in which are intertwined with each other, like threads in a fabric.
