Rolling of copper tubes for the brake system. What are the devices for the brake tubing flapping? Selection of fixtures for rolling tubes

Installation of copper pipelines can be carried out in several ways. One of the most common is the use of a soldering method of individual sections. This makes it possible to achieve tightness, but not always practical due to the low maximum pressure in the system. For heating or water supply systems, it is best to apply flaring copper tubes.

Purpose

The essence of this process is to change the geometry of the end of the workpiece. This is necessary for connecting different parts of the pipeline by the fusey method, followed by pressing the place of the joint. The device for the collapse of the copper tubes has different parameters and directly depends on the diameter of the product, the wall thickness and the required rate of execution of the procedure.

To understand the essence of the process, you can consider the steps of it.

1. Preparation of segments: trimming, grinding edges of the cut.
2. Determining the magnitude of the increase in the outer diameter in the part of the pipe connected.
3. With the help of a special tool, a mechanical effect on the end of the workpiece occurs, as a result of which the inner diameter increases.
4. Installation in the resulting fool of another cut pipe. Then the connection is fastened with a soldering or crimping mechanical tool.

When installing pipelines, you can choose models with already ready-made installations or perform procedures for formation them yourself.

Factory manufacture

If the length of the copper highway is large and does not contain a large number of swivel parts, you can buy a product with factory collapse. For this, special shafts made from high-strength steel are used. After the manufacture of the pipe, its end portion is crimped with two rollers. The method of rolling increases the geometric dimensions of the product in a certain part of it.

The advantage of the factory collapse is the observance of all parameters of the pipe: the thickness of the wall, the length of the crop and its diameter. However, when installing, often the size of the finished structures does not coincide with the required. This leads to an increase in substandard trimming and, as a result, a significant increase in the cost of purchasing materials. Therefore, for laying small highways, it is recommended to use a tool for the collapse of copper tubes.

Forming roller alone

With air conditioning, plumbing or heating system From copper pipes you need to use a special tool. Before carrying out work, you should decide on the diameter of the highway. In this case, the collapse of copper tubes should be made independently.

For water supply, it is often used products with a cross section from 20 to 32 mm. If the heating system is installed, the optimal diameter is from 32 to 40 mm, depending on the parameters of the boiler. For installation of air conditioners, products up to 16 mm are used.

Based on this, the collapse of copper tubes can be carried out by several types of tools. The main criterion for choosing should be the quality of the resulting termination and the possibility of using replaceable nozzles for pipes of different diameters.

Tool

The easiest way to change the geometric sizes of the end is the use of a tapered cylinder of solid material. Its outer diameter should coincide with the maximum amount of the cross section of the future termination.

However, without great practice, the appearance of defects on the walls of the pipe is possible. If the collapse of copper tubes do with a large mechanical force than necessary, then the metal can crack. To prevent this on the end of the cone, the limiter is welded. But it is not always a guarantee of the right work.

An alternative to this method can be the use of a special tool - the expander. It is a cone head, on the surface of which the limiters for pipes of various diameters are stepped out. Pressing the flue lever is evenly expanding to the required level.

For a large scope of work, there are devices with an electric drive. The processes in them occur automatically, which guarantees a high-quality product. The main disadvantage is the price.

Benefits of the method

If you make the collapse of copper tubes yourself, it is recommended to acquire a special tool. Using the devices not intended for this can lead to a significant deterioration in the connection site.

The advantages of the professional roller tool are as follows:

• Uniform thinning of the walls as a result of mechanical exposure.
• No breaks or deformation on the surface of the pipe.
• The speed of work will allow to install a highway in a short time.

With a small amount of work, it is not necessary to buy a professional tool. Currently, there are many companies that provide rental services for a small fee.

The stability of the functioning of the car is determined by the health of all the main nodes and items. The degree of their importance, in the holistic system, varies. However, there is nothing more important in the car than the security system. For prompt reduction of speed vehicle The braking system is responsible. The diagnosis of the brakes is required, in order to establish the performance or detection of deficiencies.

Many elements brake system Substaculated in time. In this case, it will be about brake tubes. Unlawful brake pipes with their own hands are capable of even enough experienced repairman. The main thing is to correctly determine the status of the transport element.

The function of brake pipes

Based on the name, guess the purpose of the elements, it is not difficult. Tubes perform a transport function, providing high-quality performance of the entire braking system. The use of metal tubes is determined by the working conditions. To understand this, you need to figure it out in a holistic picture.

In the process of pressureing on the braking pedal, a certain pressure on the piston is created, placed in the main cylinder. Traffic brake fluid It occurs through the system of tubes and hoses. As the power pulse change, the pressure reaches the pads, contributing to a reduction in speed.

Liquid transportation is possible on two channels, the main and duplication. Installing two contours provides insurance, in case of failure of the main element. However, the lack of failures in the work allows us to use both contours. Insurance is a temporary defense, since the violation of the activities of the main element will lead to a decrease in the functionality of braking, making a vehicle unsuitable.

Why do you need a ruin?

During the operation of the car, the wear of individual elements requiring replacement occurs. When the supply elements wear out, quite characteristic features appear. Emergency stop is accompanied by a creak and pulsation emanating from a damaged wheel element. Violation contributes to an increase in braking time. There is a decrease in the pressure of the brake pedal, the pressing of which becomes free. The likelihood of DUE leakage, which leads to a decrease in efficiency. An indirect sign of wear of the braking tube is considered a situation with car departure to side, in the process of movement.

The cause of violation of stability in the operation of the tube can be corrosion, minor in size of cracks, pollution. Minor damage in size contribute to the flow of brake fluid, which is unacceptable. Violation of work is noted in case of failure of the hexagon head structure, as a result of destruction. Sometimes there is a clogging of the compounds.

In order not to fall forward, the planned diagnosis is carried out. For drivers moving in urban environments, checking the brake tubes should be carried out every 50 thousand km of mileage. If the car is used not often, then just once a year.

Operation of the machine for the roller

Most not experienced car owners are beginning to be lost when it comes to independent work. The situation with the collapse is not the most difficult, so there are no reasons for the experience. The main thing in the work, have required tools. The main, in this case, is the tool for the collapse.

Steel and copper are used as material for the manufacture of tubes. The copper tube is more expensive, however, its quality is noticeably superior to the steel, due to high resistance to oxidation processes. It is not worth saving on this element, as this can lead to a quick breakage, leading to another replacement.

Deciding with the material, it takes a pipe cutter, a fitting and a rolling machine. As a degreasing means of the ends, gasoline is used. Having measured the segment of the desired length, the pipeline is used. The principle of his action is quite simple. On the marked point, the pipeline is inserted into the cavity, the tube is inserted, partial fixation is carried out. Several turns of the tool are required around the axis. Next, the screw is twisted a little more. The procedure is repeated. Reaches uniform cutting.

After receiving a segment of the desired length, the ends must be rid of burrs. One of the ends of the tube is inserted into the rolling mechanism, in the desired gauge, is firmly fixed. The protruding end of the tube is saved at 5 mm. A special hat is inserted over a small protrusion. Out of the hat, the presses element is fixed. Turning the lever, the end roller. Do not overdo it in pressure, it is enough to bring to a tight state.

Having obtained the treated end in the form of fungus, the other side is treated identically, however, you must be placed two fittings. As a result, a ready brake tube is obtained, which can be installed. The collapse parameters are determined by the vehicle braking system. The roller tool involves the presence of different patterns, so there should be no problems with the choice.

By setting the brake element, tests are carried out on professionality. If everything works fine, the brake tube manufacturing activity was successful.

For the extensive army of motorists who are accustomed to repairing the car on their own, the emergence of new tools and devices in the arsenal already existing - by itself implied inevitability. Today it will be about repair, which very often requires replacement of brake tubes. These elements are more than others are exposed to external factors, which affects their condition. But it is possible to replace them only in the presence of a specialized tool, which is performed by the roller of the tubes. No tool - do this operation fails. This means that you will still go to the nearest car service. Or go to a car shop to become the owner of another very useful device.

Purpose brake pipes

Any hydraulic system needs highways in which the fluid is supplied to the working mechanisms. The brake system of the car is no exception, but here there are features. They are associated both with the design of brakes and technical characteristics The working fluid used to which highly rigid requirements are presented:

• it should not stick at temperatures exceeding 200 degrees;
• do not lose fluidity into the forty-portous frost;
• not to be aggressive to rubber items of the brake system;
• do not cause corrosion.

The last item is especially important for brake pipes, which are an integral part of the TC modern car. Consider the principle of operation of a typical brake system.

The algorithm for stopping the vehicle is associated with the following actions:

• the driver in the event of the need to reduce the speed of movement of the machine up to its full stop presses with the corresponding force on the brake pedal;
• the pedal rod directly affects the piston of the main brake cylinder, leading it into action;
• the piston, moving in the cylinder, affects, creating a certain phenomenon;
• the liquid, the compressibility of which is close to zero, moves through the highway and affects brake cylinders located on each of the wheels;
• the pistons transmit the pulse of movement to the brake pads, which, pressing to the disks, and create a braking force, slowing down the rotation of the wheels.

In this chain, the brake tubes are an integral part of the hydraulic rail to which moves working fluid. Their task is to prevent the leakage of the TH, therefore, the quality of their connection with other elements of the brake system becomes of particular importance. For this purpose, a technological operation is used, called the collapse.

Its essence is to deform the terminal section of the tube in such a way as to evenly increase its diameter (the opposite operation, which consists in a narrowing of the diameter of the tube tip, is called a rolling). The collapse is needed in order to ensure the most sealed tube connection with each other or a tube with a collector.

Since, as we have already noted, the brake pipes are subject to mechanical effects, they can receive damage caused by the deception of the system - in this case, an immediate operation is required to replace them. Natural wear is a more common cause of replacing this component of the brake system.

The procedure of the rolling tube itself consists of three stages:

• the definition between the tube grille and the tip of the tube;
• rolling and tube, and tube lattice;
• removing the damping load from the inner walls of the tube.

The deformation technology requires that the brake tube metal subjected to the so-called plastic deformation, and the metal of the grille is an elastic deformation. To ensure this condition, the lattice is made from the more solid metal, which makes it possible to grasp the tube after the completion of the flaring stage of the tube lattice.

Ensuring the required tightness of such a compound is carried out by applying the method of contact pressure generated between the outer surfaces of the contacting parts. In some cases, the technology of connecting the struck tips of the pipes involves the use of welding - this method is called combined.

In the factory setting, the collapse is carried out using a special machine equipped with a hydraulic, pneumatic or electric type drive, which provides for the ability to control the speed of rotation. It is on the drive that the task of providing the required reliability of the compound is located.

When replacing brake tubes, the collapse is carried out using a special tool that can be purchased in the auto shop.

When the brake tubing flares required

The brake fluid ensuring compliance with a number of the above-described requirements has high hygroscopicity, that is, the ability to absorb moisture. This is the payroll for a unique complex of characteristics, so the full tightness of the highway is so important. fraught with that under the influence high temperatures It significantly increases the compressibility of the fluid. And this means that pressing the brake pedal will lead to a braking itself with a certain delay, which is unacceptable for considerations of traffic safety. And the more air will be in the system, the tangible will be a delay.

The depressurization of well-defined symptoms is manifested - a significant increase in the brake path, pedal failures and the appearance of foreign sounds when braking.

Liquid leakage is usually accompanied by overheating brake drumsSince the boiling point of the liquid diluted with air is noticeably falling. As a result, the brake pads begin to wear more intensively and, which is especially unpleasant, unevenly.

Another explicit sign Disorders of the integrity of the brake line - car care when braking from the initial trajectory of movement.

Note that the breakdown of the brake tubes (or rather, the need for their replacement) can be caused by other reasons:

• deformation and cracks of the hexagon head;
• clogging threaded connections;
• cocking brake fluid in places of conjugation.

Not a single car is not insured against such trouble, so it is time to periodically (at least once a year) to test the brake system as a whole. Diagnostics component parts The brake highway should be carried out every 50, the regulatory replacement of rubber hoses and tubes is produced every 125 thousand kilometers, and regardless of their condition.

And since the replacement of these elements requires special processing, consider how to ruin brake tube do it yourself and what tools will be required for this.

Independent ruins

In industrial conditions, special high-strength shafts are used for pipe rolling, while the profile of the tip of the pipes is formed as a result of multiple rolling them. Such a roller machine allows you to perform deformation as accurately and evenly.

When independently, the ruin usually use kits that can be purchased via the Internet or in specialized stores. Such a kit includes pipe cutting, clamp, as well as stamps with holes of different diameters (with metric or inch dimensions) for the roller with the use of a conical screw.

Many car owners so that at home to unravel the brake tube, use a more primitive method that does not require the acquisition of the above-described device - a conical blank with the desired angle. If the tube is made of copper (such now meet not often - manufacturers for savings are massively moving to metal), it has sufficient plasticity to perform such an operation on their own. But you will be required not just power, but precisely dosed efforts when stretching the tip of the copper tube to the cone. Any skew when hitting - and the result may be unsatisfactory: from the rupture of the roller surface in the place that a stronger blow came to jams too thinned with such a surface processing. So that this method It is unlikely that it can be recommended as an acceptable - to it should be resorted only in case of extreme need.

Much more predictable results are obtained when using the expander. It will also be necessary to use physical strength here, but the process itself is simplified, since the stretch of the pipe on one of the replaceable nozzles is carried out with the help of a rotating handle.

The expander allows the collapse of the tube to the desired diameter quickly, in just one approach, however, and here it is not guaranteed one hundred percent results. The main key of success is the quality of the pipe itself. If it is bad, that is, the walls are not perfectly smooth (they have different thickness on a certain area subjected to processing), then in this case the thin walls will stretch more, thick - less, and as a result, the collapse will not be perfect. Attempts to "think" the compound may result in a deplorable - its breakdown or crumpled.

A classic brake rolling tool is a set of rollers produced from hardwly materials. The rollers rolled over the surface of the processed pipe, each time with an increasing effort. As a result, the collapse is performed smoothly, and all the troubles that are characteristic of more primitive tools are impossible here. Each new roller turnover increase the diameter of the workpiece to a minimum value, and such a gradual stretching is carried by the metal very well.

Such a method is applicable even with respect to a nonideal billet, since in the presence of areas with thicker walls, they roll up to the desired value, while the surface of the tube becomes smooth and smooth, without any defects and roughness.

Another common collapse method is the use of a solid cone, which is pressed with a certain force in the tube, pre-reinforced in vice. The quality of such a method is comparable to the use of shafts, but it is important to stop here at the depth of shocking, which corresponds to the desired rolling diameter.

Of course, the ideal solution would be to purchase a finished machine of factory manufacture. But if you feel about the category of craftsmen trying to do everything yourself, including rarely used tools, the collapse for copper tubes can also be made at home. Without this tool, ensure the reliable connection of the brake tubes will not work.

The main condition - metal blanks should be durable, this will allow you to use the device for decades. The design of such a flawer is pretty simple - it represents a bed made of two equal in size of the corners.

We will need the following tools and materials:

• drilling machine;
• sharpening machine;
• bulgarian;
• corners (100 x 32 x 5 mm., 2 pcs.);
• mandrels (can be made independently or ask to sharpen from a familiar turner);
• bolts M8 (2 pcs.).

The tool itself is done very simply: both corners are fastened with a bolted joint, after which the holes are drilled at the base, on the edge of which the chamfer is made. A similar tool will allow you to produce almost the perfect brake tubes, regardless of their length.

Pipe processing algorithm homemade adaptation It is practically no different from the combat method using the purchase factory machine:

• we establish the workpiece into the holder and fix it in such a way that the external edge, subjected to processing, played by the edges of approximately 5-6 millimeters;
• we install a suitable diameter cone on the tube;
• after dressed fittings, we make sure that the direction of the thread turned out to be multidirectional (if you look from the side of the billet, the thread should be directed from each other);
• we start screwing into the cone harvesting, which will lead to uniform interlocking of the edge of the tube. It is necessary to work slowly, following the cone, the cone does not go deep into the latter value;
• we take out the item, carefully get rid of sowing.

As a result, we get a neat, high-quality struck part, which can be used for direct purpose. Perhaps the first experience may not be too successful, but, finishing, you can handle the edges of the brake pipes as good as using the factory tools.

Pros and cons of the roller tubes do it yourself

You can not doubt that, working for yourself, you will react to all stages of the technological process with the highest possible liability and zeal. Of course, you will not need to go somewhere and pay someone for doing this work.

But there are obvious cons - we have already given an approximate deadlines for the regulatory replacement of brake pipes. And since they fail relatively rarely, it is quite possible that you will get acquired or made independently tools to take advantage of one, from strength twice. However, if you are the owner of a strongly worn car, it is likely that the replacement of the tubes will have to be produced much more often.

To carry out the collapse of the brake tubes with their own hands - the task is simple, but subject to the presence of a specialized tool. And what is more profitable - buy it, make it yourself, or still attribute tubes to specialists, you must decide for yourself. The main thing is that your car braking system is always in perfect condition.

The brake rolling tube is a procedure, the execution of which can be required at any time to have someone who has its own car. Of course, this and any other operation related to maintenance and repair motor vehicleYou can always entrust the qualified specialists of maintenance stations, but many motorists go to others and try to do everything with their own hands. Each car owner is entitled to decide who to trust maintenance Its vehicle, but many of these issues can be solved on their own.

Functions of brake pipes

Brake tubes are an integral element of the brake system of any car that is responsible for stopping at the required moment. To understand how such tubes are for the operation of the brake system as a whole, should at least be superficially get acquainted with the principle of its action.

So, the process of stopping the car, to perform which the brake system is activated, consists of the following steps.

• If necessary, reduce the speed of the car or stop it completely the driver presses the brake pedal.
• The piston associated with the pedal is activated and begins to affect the brake fluid.
• Under high pressure, reported by the piston of the main cylinder, the fluid on the tubes and hoses begins to enter the cylinders of each wheel, affecting their pistons.
• Under pressure fluid pistons affect brake pads that pressed to brake discs, stopping the rotation of the wheels.

Obviously, the brake tubes play a crucial role in the work of the entire brake system, and when they breakage it completely fails. That is why the repair of these elements to which it applies and should be approached with full responsibility.

In which cases the brake tubing is needed

On the brake tubes, as mentioned above, high-pressure brake fluid is supplied to all system elements. When the bandwidth of such tubes deteriorates, the entire system begins to work inefficiently, which leads, in particular, to a significant increase in the braking path. It requires diagnostics (and possibly repair) to elements of the brake system, including pipes), the following characteristic features may indicate:

• the emergence of foreign sounds and pulsating movements when pressed on the brake pedal;
• free traffic brake pedals when pressed on it;
• the leakage of the brake fluid, which leads to a decrease in pressure and, accordingly, to inefficient braking and intensive wear brake shoes;
• carrying the car to the side when braking (such a situation, although it is an indirect feature, may also indicate that brake pipes need to be repaired).

However, the main sign that the brake tubes fully do not fulfill their functions and require a roller, is an increase in the braking path. The most frequent causes of deterioration of the performance of the brake tubes are:

• disorders in the design of hexagon heads that are not separated by such tubes;
• the deterioration of the quality and reliability of the threaded compounds, the sap or the focused liquid in them.

Such malfunctions, negatively reflecting on the technical condition of individual elements of the braking system, significantly reduce the efficiency of its operation. That is why experts and automakers recommend that it is diagnosed once every six months. If you get tied to a kilometer, then it is necessary to carry out such a procedure every 50,000 km of run, and the replacement of rubber tubes, regardless of their technical condition, it is necessary every 125 thousand km of a vehicle run.

Features of technology

Car repair, with whatever it is connected, rarely causes pleasant emotions from the motorist. This is also explained by the fact that such an event is usually associated with certain financial expenses. Meanwhile, if we talk about the situation at which the brake tubes must be unloaded, the costs of such a procedure can be minimized if you do it with your own hands.

So, to unravel the brake tubes with your own hands, it is required not only to study theoretical information on this issue and view the appropriate video, but also to purchase a special device. In, which can be sufficiently inexpensive to purchase in many car stores, includes the following tools and devices:

• truboresis;
• fitting used as a connector;
• pliers.

Using such an uncomplicated set to which the drill must be added (to remove the champers on the ends of the pipes), as well as gasoline, which is necessary as a lubricant material, can not only perform a qualitative rolling with their own hands, but also to save a decent amount of money that would have to pay specialists Maintenance stations.

Immediately before the flapping procedure with the brake tube, the following steps must be performed.

1. The tube using a tool or manually unscrew from the brake cylinder or caliper.
2. With help visual inspection Determine the presence of damage on the surface of the tube. If they are close to its edge, then the tube can be restored, if not, then it must be replaced with a new one.
3. Using such a tool like pipe cutting, a plot of damage is cut from the edge of the tube and the cropped edge is treated with gasoline.
4. The cropped end of the tube is clamped with tongs and in its inner part with a drill with a drill of the corresponding diameter, a chamfer is removed.
5. The portion of the inner surface of the tube, where the chamfer was removed, purified from chips. After that, the end of the tube is inserted into the fitting, acting as a connector.

After all the actions above are completed, the tube must be collapsed, for which it is best to use a special machine. The collapse performed using such a machine is carried out according to the following algorithm.

1. The end of the tube that is required to flaw is inserted into the clamping hole of the machine. In this case, a part of the tube protruding from the clamping mechanism of the machine must be approximately 5 mm.
2. With the help of a special punch, which is equipped with such a machine, the end of the tube is ruined.
3. If it is necessary to rolled the second end of the tube, the entire procedure described above is performed in the same sequence.

As a result of the execution of the roller, with the help of such a device, with the rules and subtleties of working with which it is best to familiarize themselves on the video, the end of the brake tube becomes neatly expanded. Using a special machine allows you to adjust the parameters of such an extension, because for brake systems used on vehicles different marksThey can seriously distinguish. As a rule, in special sets, with which the collapse of the brake tubes can be collapsed with their own hands, there are lecked, allowing to monitor the result of the technological operation.

Deploying the end of the tube through a special knife located on the rear wall of the cutter

What are the devices for the brake tubing flapping?

In the Arsenal of the car owner who is used to independently repairing his car, in addition to the standard set of tools, including various screwdrivers, wrenches, montits, jack, etc. There must be some special devices that allow you to make one or another effectively. repair work. In this article, I would like to discuss the problem of the rolling of pipes, or rather, to pay attention to the adaptation, with which the specified process is carried out, especially since many motorists consider it a very useful tool.

1. What is the roller tube?

The rolling of the tubes is a technological process (operation), the essence of which consists in deforming a certain part of the part in order to increase its diameter (if the diameter decreases, the process is called the "rolling"). The specified procedure is carried out in order to obtain a hermetic and durable connection of two pipes, or a tube grid - a collector. In the automotive world, the concept of "collapse" is usually associated with brake tubes, which have to be repaired due to strong wear or leaks.

The entire rolling process is divided into three main stages: the first provides a selection of the gap between the pipe and the tube grille; The second operation is carried out to jointly deform the pipe and the tube lattice; And the third (final) - responsible for removing the load from the inner surface of the pipe.

In the course of the joint deformation stage, the metal pipe is preferably translated into the plastic deformation zone, and the metal tube grid is in the zone of elastic deformations. To ensure such a result, the rule should be observed that it says that the hardness of the lattice material must exceed the hardness of the material from which the pipe is made, due to which, after completing the rolling process, the pipe grille can "clamp" the pipe.

As a result, a press compound is obtained, the tightness and strength of which is ensured by contact pressure, which is formed between the outer surface of the pipe and the surface of the lattice hole (or the second pipe). In some cases, when connecting pipes with pipe lattices, welding use with the collapse, calling such compounds with combined.

In everyday life, the roller is used when it is necessary to fix pipes in boilers, oil coolers, capacitors, steam generators and some other types of heat exchange devices. For the full implementation of the fraud procedure, in addition to the machine itself, with which the operation is performed, you also need to have an electric, pneumatic or hydraulic drive With the ability to control torque. The presence of such a drive will ensure proper quality of the compounds.

2. Principle of action of fixture for rolling tubes

To date, the industry produces a large number of a wide variety of pipes and small tubes used for the operation of various devices and mechanisms. The parts based on the hollow round profile of a constant section are made from cast iron, iron, stainless steel and non-ferrous metals, plastics, metalplastic, rubber and other materials.

In addition, different products are used in different household and industrial conditions. For example, for heating or water supply, for sewage or passage of exhaust gases, for wells or aisle technical fluids. The diameter of the produced pipes may vary from several millimeters to several meters, and for their processing, a large number of different equipment and tools are used. Starting from the collars and ending with bending devices and machines for processing the edges of the parts.

Device (tool) for rolling tubes (no matter, copper they, brake or any other), makes it possible to quickly create a desired profile having a bell shape. As a rule, at the beginning of the rolling process, the tube is cut off with pipe cutters, after which the nut-fixer dresses on it and with the help of a flawer, by rotating the screw, the cone creates a similar profile on the tube.

In other words, expansion cross section By increasing the diameter of the tube makes it possible to create a small fallen at its end. It is he who is a priority, which ensures the implementation of infinity connections of different elements. Having obtained the desired extension, you can insert a smaller diameter tube into the socket and secure it to secure it at the connection site.

Probably, it is worth mentioning about the principle of the operation of the tool for the rolling, because it is often necessary to reduce the diameter of the pipe by narrowing the cross section, so that it can easily enter the fool. Professional device that allows you to qualitatively perform rolling pipes, are special ticks. And in order for processing to require smaller physical effort, it is necessary to choose models with a long handle.

Basically, the specified toolkit is intended for working with copper products. Although copper and cheap material, but in some cases have significant advantages over the rest.

3. Choice of fixture for rolling tubes

Due to the huge variety of all sorts of instruments and materials, choose a suitable device for rolling tubes is very difficult. First of all, when selecting, you should have sufficient information about the parameters and characteristics of the systems for which they will be used.. And the tool itself can be used both to create accurate frames on brass, copper, steel and aluminum pipes, and for their expansion or exhaust.

The collars of copper tubes are manufactured not only by well-known companies specializing in the tools of various kinds, but also little-known manufacturers who are on the market not so long ago. You can pick up simple models consisting of a pair of galvanized plates and a bolt equipped at the end of a cone, and you can also purchase a whole professional set, which includes several dozen individual elements made of chromovanadium alloy.

Such kits, in addition to convenient packaging, represented as a case with a prisoner under each individual element of the device itself, can be supplemented by the brake tubes, and the chamfer processing, a pair of clamping slats with various holes (often, have a knocked outage value) and fragrant nozzles . Depending on the selected model, pipe flawers can be created as a standard cone (at an angle of 450) and some other types of its types, for example, a double seal cone.

Before buying a collaborating tool, you need to have the following information:

The diameter value of the pipe (tube);

Data on the depth of the collapse;

The presence of welding seams;

The characteristics of the material from which the item is made.

The standard rolling tool provides the manufacture of conventional simple frames by 45 °, in the tubes with a wall thickness of 1 millimeter. Low weight and small dimensions make it possible to use this device in the collapse of the joints of the vehicle brake system and cooling systems.

The implementation of the procedure using a tool with a ratchet mechanism requires the master of minimal physical efforts, and smooth and smooth exit are obtained. The ruined cone made of hardened steel is installed in needle bearings eccentric and rotates until a uniform plastic metal deformation. This provides a fully homogeneous state of the filling walls, without any furniture.

Rolling and rolling pipes using a compact collapse (so called the appropriate device), makes it possible to get a special thread, without damaging the material, and the clamping lips, thanks to the multiple capture, allow you to quickly and secure the instrument quickly and securely, without allowing the product slipping. If you additionally apply a metric and inch markup on the matrix, it will greatly facilitate work with pipes of different manufacturers. The special form of a single tool nozzle allows you to apply a ruin and in working with long pipelines, and with pipes, the thickness of the walls of which is less than one millimeter.

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