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.
- Preparation of segments: trimming, grinding edges of the cut.
- Determining the magnitude of the increase in the outer diameter in the part of the pipe connected.
- 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.
- 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 rolling method is increasing geometrical dimensions Products in a specific 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, a plumbing or heating system from copper pipes, you must 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, then optimal diameter ranges 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 collapse of copper tubes, also called the rolling, is a technological operation, the essence of which is to deform their walls in the right direction. The need to implement such an operation occurs in cases where it is required to perform a hermetic and reliable connection of copper tubes with various devices and devices or docile them with each other.
Pipes made from copper are quite common today, and in cases where their connection should be detachable, without a ruin it is not necessary. For collapse of copper tubes, both special equipment manufactured and a set of simple tools, which, subject to all technological recommendations, also allows you to perform such a process.
Features of execution
Performing rolling of copper tubes may be required if:
- cropped end of the tube must be given the desired configuration;
- the end of the product should be prepared for its compound using the coupling (in this case, using the roller, the adjustment of such geometric parameters of the tube, as the inner diameter, the angle of bending, etc.);
- it is necessary to prepare the ends of copper tubes for their connection using soldering.
To qualitatively deflateing the copper tube using special tools and fixtures, you must perform the following steps.
- The end of the tube, the connection of which needs to be performed, is carefully determined.
- A special coupling is put on the expanded end.
- Using a special tool or device, the end of the tube is divided while the angle of its expansion is 45 °.
- After the completion of the procedure, the end of the product is extracted from the device. Then you can immediately begin the connection.
If such a technological operation you have never been performed earlier and for the first time, you are going to carry out the collapse with your own hands, then you should cut off the tube with some length of length (2-2.5 cm), which will allow you in case of failure to ruin it once again, cutting off the defective area.
If the copper is necessary in order to complete its connection using a soldering, then the sequence of actions to implement such a procedure will look like this.
- The surface of the end of the tube that must be flawed is carefully determined (for this it is best to use a special brush).
- With the help of a special device, the end of the copper tube expands to such an extent that it can be inserted into it to insert another tube and to withstand between the connected elements the clearance equal to 0.124 mm. Naturally, it is necessary to use a measuring instrument.
- On the inner surface of the pipe section, which is already fragmented, the uniform layer is applied flux required in order to ensure the formation of a reliable and hermetic compound.
- In the collapsed part to a depth equal to the diameter of the pipe, the end of the second connection element is inserted.
- With the help of a gas burner, an electric soldering iron or a soldering lamp, the place of the future connection warms up to the moment when the solder begins to melt.
- All gaps between the edges of the combined copper pipes are filled with molten solder, as a result of which a reliable and hermetic compound is formed.
After the connection of the two copper tubes is formed, they must be put on the horizontal surface and give them completely cool. Only after the connection site completely cooled, the resulting design can be operated.
Tools and devices
In order to unravel your own hand-made tubes made of copper, use special devices. Such devices can have both manual and electrical drive. They are used for mounting air conditioning, water supply and heating systems. The tools equipped with an electrically driven often combine several functions in themselves: with their help, you can not only flavor the copper tube, but also bend it under the desired angle.
Any device, with which the collapse of pipes made from copper is carried out on the principle of plastic deformation, so it is very important that it copes with such a process as carefully, without disturbing the homogeneity of the material structure, while maintaining the thickness of the walls of the products, as well as the smoothness of their internal Surfaces.
Scheme of proper collapse and examples of incorrectly generated operation
To qualitatively, perform the collapse of copper tubes (even if you exercise it with your own hands for the first time), you can use one of the following fixtures.Template
This is a cone shape dweller made of a more solid metal alloy than copper. The advantages of such a device are low price and simplicity of use. Meanwhile, its use may be accompanied by the ruptures of the walls of the copper product, which gives the low quality of the collapse.
The main working body of this device is a solid alloy roller, which, rolling along the edge of the copper tube, gives the last desired configuration. The use of a mechanical collapse allows you to perform a uniform deformation of the processed portion of the tube, form at its end of the wall of the same thickness with the high quality of their inner surface.
Electrical drive
Such a device with a whole set of replaceable nozzles, having all the advantages of the mechanical tool, allows you to carry out the collapse of copper tubes with higher productivity and with less labor costs. Perhaps the only disadvantage of the electric flavor is its fairly high price.
Such a manual device operating on the principle of the lever mechanism allows to unravel the end of the tube for one movement. Possessing the simplicity of design, such a device has a number of significant drawbacks, the most significant of which is the inability to control the wall thickness of the product being processed. Thus, the use of an expander, which is most often choosing those who carry out the rolling with their own hands, does not guarantee the preparation of a qualitative result.
Decommissioning the copper tube, taking into account the high plasticity of its material, is easy. However, to achieve high quality of such a technological operation, only a specialized tool should be used. The execution of the rumble with the help of the simplest devices, which includes blanks and expander, can be accompanied by a number of negative consequences.
- The walls of the tubes, if they are a small thickness, will be fused.
- In the walls of the tubes to which such a tool will be influenced, gaps may occur.
- It is almost impossible to achieve uniformity of the thickness of the pipe walls, which will eventually affect the reliability of the compound being formed.
Meanwhile, the use of devices specifically designed to perform the roller, has the following advantages.
- Due to the gradual (stepped step by step for each passage of the rollers of the instrument), the expansion of the pipe walls appear in it is almost excluded.
- The uniformity of the thickness of the walls of the copper tube is achieved, even if initially this parameter did not differ uniformity.
- The inner surface of the tube after the collapse becomes perfectly smooth and smooth.
The use of a special device, in addition, allows you to quickly and qualitatively unlawd the end of the tube even those who have never previously performed such a procedure with their own hands.
The horse is not iron. Although it is called pensioners, but the car is only partially consisting of steel. The rest is plastic, rubber, glass and non-ferrous metals, to which you need a special attitude. Today we will talk about how to properly handle copper and aluminum tubes, which the modern car is simply used.
Non-ferrous metal tubes in car systems
The radiators still do not touch, this is a separate topic. Interesting tubes that are responsible for the work of brake and fuel Systems car. Rotten brake tubes - this is a problem not only old soviet carsBut also newer foreign cars that drove on the roads, generously sprinkled with salt and any chemistry for several years. The tubes come into disrepair primarily due to the fact that they affect the aggressive chemical environment. In winter, we have under the wheels of this medium - full. With human road covering Salt comes from the roads along with snow, and at our roads, it can go to the next winter.
Causes of breakdowns of brake tubes
But not only in this cause of wear of hermetic tubes. From salt, they only rot, and from constant strong breaths of fittings, improper fixation, fesomes and infrections, they receive severe mechanical damage incompatible with life. Wines in this not tubes, but grief masters who do not know how to properly handle a soft or fragile metal. Anyway, it comes the time of replacement of the tubes, and if the desired configuration is not found, which is almost impossible, then you have to do the tube yourself. Cut the desired piece, wear fittings and ruin. And it is necessary to be able to. Rolling brake pipes With your own hands - the task is not difficult, fast, and inexpensive.
Set for brake tubes
Naked hands will not prepare a copper tube to use. To do this, you need to have at least minimal fixtures. Metal, though soft, but the end of the tube must accurately match the seating cone, otherwise we will not achieve the system tightness. Ideally, for the roller of the tubes, the machine must be used to buy, but if we have the opportunity, you can use the homemade set, which by doing once, we will use for many years. And it will come in handy more than once, believe me. Here is his drawing.
It does not mind anything difficult. This is a bed, made of two corners with a thickness of 5mm and a 32 mm shelf. The length of each corner is 100 mm. The drawing shows that the set is adapted for tubes with a diameter of 9 and 12 mm. The bed itself is performed in ten minutes in the presence of a sharpening machine, drilling machine and a grinder. Both corners are bonded by two M8 bolts, holes and chamdes in them are drilled in the assembled form. The mandrels will have to be ordered or to order from tokar, which is not completely problematic, or to pull themselves. But with this set, any tube turns into an ideally prepared part. The rolling process occurs just as well as using the machine, which we will tell on.
Machine for brake rolling machine
the easiest machine for rolling tubes will cost you 600-700 rubles. But it will be not the highest quality product. We would recommend not to descend below 1800, otherwise there is a chance to spend money in vain. Several sets and machines we have shown in the photo. One of them is more expensive, the second cheaper, but they have one essence.
It consists of a machine from a plank that holds the cutting. Actually, our homemade set also has the same structure, only in branded kits are compulsory:
More dear models Have even greater equipment, but we will consider only the most minimal configuration.
The collapse can be three species, but the first two we are interested in little, because they are used mainly in refrigerators and air conditioners. The collapse occurs as follows:
Thus, we obtain a neat collapsed brake tube, which can be safely replaced by the old one, failed. We cannot say that the machine for rolling tubes should be in every garage, but as a rule, the most valuable things are those that are not always at hand. Watch out for the state of the brake system, and good luck on the roads!
August 4, 2019.Responsible motorists know that you need to regularly monitor the condition of your car. Especially keeping the operation of the brake system. Brake tubes play a considerable role. If you have noticed that there are damage on them, then the time to eliminate them. Often there is enough ruin. Do not doubt your abilities, and read carefully an article. Following simple instructions, you will handle the problem without service of the car service.
Purpose and function of brake tubes
Brake tubes are not a separate item, but an important component of a whole system. They create a kind of highway, which moves brake fluid. Them good job Mandatory with reduced speed, stopping the car and, of course, emergency braking.
The main function of the tubes - ensuring movement working fluid to brake system elements. During this work, they are constantly exposed to high pressure and hydraulic loads. If they fail, the work of the entire mechanism is disturbed, and the vehicle becomes unsuitable for operation.
When is the brake tubing fragmentation required?
Long-term operation of the car, the ruthless use of the "iron horse", untimely technical inspections and neglect of the rules of care lead to problems, including with brake tubes. They have:
- reduced bandwidth;
- cracks and rust appear;
- weakens or rott fastening;
- sweep thread;
- there is a break.
All this will certainly lead to a failure of the entire brake system as a whole. So, the threat of an emergency on the road will arise.
The correct decision will be the rolling of the tubes, that is, eliminating the directly damaged area. It is not always necessary to change the entire tube entirely. If it allows the length, you can only get rid of the spoiled part. But do not forget the old saying "death seven times, a rejection once."
Reference! The collapse of the brake tubes is used only to metal products. Rubber materials are subject to replacement.
Alarming bells about the malfunction of the brake system, including brake pipes, are:
- leakage of brake fluid;
- foreign sounds, screenshots when you click on the brake pedal;
- uneven wear of pads;
- free movement of brake pedal;
- increasing the brake path;
- overheating brake drums;
- when braking, the car leads to the side.
Important! Ignoring disturbing symptoms can lead as a breakdown of everything vehicleand severe consequences during traffic.
Instructions for self-collaboration
Not every motorist is desired to repair. For some, this is too complex occupation, others have no time and desire. If you relate to the listed categories, you can always contact the car service, and entrust the roller to professionals.
There is another factor that can stop you is the lack of a special tool. Nevertheless, it can always be purchased in the automotive store, or order on the Internet. The tool is most carefully working with metal, while the uniformity of the wall thickness and the smoothness of the inner surface remains.
If you wish, you will easily acquire a set for the collapse. There, in addition to the "Sprelace" includes:
- truboresis;
- ticks;
- clamp;
- fitting;
- stamps for different diameters of tubes.
Important! Do not rush to acquire the cheapest sets. Mostly they are low-quality. It is better to pay a little more expensive, but the life of the tool will be longer.
If the listed obstacles are not frightened, and at hand there is everything you need, do to repair yourself. The process of breakdown brake tubes is not laborious and does not take much time. At the same time, after successfully done work, you will definitely feel a sense of pride from our own opportunities.
Clearly follow the instructions:
- Calculate the car to the observation pit or overpass, immobilize.
- Prepare a set for the collapse, and you will also need a drill and a little gasoline.
- Unscrew the brake tube from the caliper or brake cylinder. Evaluate the degree of breakage and the ability to repair.
- If you can remove a spoiled piece, while keeping the desired length, cut it with pipe cutter and throw it away. He has already worked out.
- Complex edged edge Process with gasoline.
- Tick \u200b\u200bclamp the tube to create a connector under the fitting.
- Drill and drill the desired diameter, remove the champecker along the edges of the tube.
- Clean the tube from the chips and insert the fitting.
- Take the tool for the roller and insert the tube into the desired hole. It is necessary that its end spoke 5-6 mm per edge.
- Click the tool. At this time, the mechanism is processed by the desired part.
- Admire the result of the work. At the end of the tube there should be a neat extension, which hermetically connects the elements of the system.
- Install all the details in place. Fill the brake fluid and pump the system to get all the air out of it. Test the work of the car.
Pros and cons of the roller tubes do it yourself
The roller process itself will not leave a lot of strength, but, as in any case, you can allocate your positive parties and disadvantages.
The pluses include the following facts:
- you do not need to pay for the work of someone else's people, and this is a profitable savings;
- you are interested in the health of your car, so make a job responsibly and efficiently;
- special knowledge and special skills are not needed, and therefore you will cope with the task;
- you can repair at any time convenient for you, and you will not adapt to the operation of the car service.
The minuses are:
- the need for a special tool for the procedure;
- possibly nonideal execution of the collapse compared with experienced masters;
- undoubted tool after work. It will come in handy only if you regularly deal with used cars.
You can try to repair cars with your own hands, and if you doubt, then trust it by specialists. You decide!
Prevention of brake tubes breakdown
Naturally, in order not to spend a lot of time looking for breakdowns and repairs, it is best to treat your vehicle with care. Do not be lazy, and follow simple tips:
- Periodically browse the brake pipes for rust and defects. Pollution, microcracks, corrosion lead to incorrect system operation.
- By regulations, change the brake fluid.
- Check the tightness of the fasteners.
- Process the surface with anti-corrosion.
- Do not allow brake fluid leaks.
- Become a supporter of a neat ride. There are no cases when the tubes break occurred when overcoming obstacles.
- Diagnostic brake mechanism at least once every two years. Motorists who spend a lot of time on the road, it is worth doing after every fifty thousand mileage.
- Regularly follow the wear of the vehicle parts, and it will take care of your safety.
The brake system of the car is the basis of security and needs professional maintenance. After all, it is from her that the safety of movement by car depends. Today we will tell you about the most terrible breakdowns of the brake system, we describe in detail what kind of braking tubes, for which it is needed and with the help of which tools it is produced.
Brake system malfunctions
Almost all drivers know that the car braking system consists of a control drive, distribution systems and executive (working bodies). All parts of the brake system are connected using brake tubes (highways). According to these tubes, the brake fluid is moved under pressure. In the process of pressing the brake pedal, the pressure on the DVG increases and it affects the working body of the system, which performs the wheel lock and the full stop of the vehicle.
During the operation of the brake system, the following faults may occur:
- Violation of tightness brake pipes and pistons in which the fluid is under pressure.
- Mechanical breakdown of working bodies. It is possible to include all sorts of brake cylinders and so on.
- Violation free travel Pedals.. Such a malfunction is discomfort to the driver during the operation of the car.
In this article, it will be discussed precisely about the first fault - a disruption of the tightness of the combustion tubes with working mechanisms.
The brake fluid of the car in its composition contains an acid that adversely affects the thin-leaf metal products. In addition, constant impact ambient It may cause corrosion on metal parts. In this regard, the locations of the brake tubes with the working parts of the system may be subject to corrosion and start producing from the braking system special fluid. Another side of the problem is the appearance of air in the system. This phenomenon reduces the pressure inside the brakes and contributes to the deterioration of the brake properties of the car.
In order to save money on the purchase of new brake pipes, drivers go to the restoration of the old tube, which passes very successfully. This process was called the collapse.
Rolling brake tubes using a set and device
The collapse is called any deformation or a change in the shape of the tube, which is further fastened to a special product performing a tube connection with a system working body.
This concept refers to brake system car. To make the roller, you need to have a special set for the collapse. It includes a set of devices, such as, cutting device, a deforming device and a set of means for cutting threads on the brake tube.
To carry out the collapse, it is necessary to install a car or overpass and immobilize. From the tank and the main brake cylinder the brake fluid merges. After all the events, it is recommended to replace the new one that in the future it does not climb again under the car. Damaged brake tube unifakes from your landingAnd then remove it from the tube itself.
Cut the damaged plot of the highway, about 5 centimeters. To cut the pipe, you need to install it in a special device and go through the blade across the circumference. After that, the cut end of the pipe is processed to get rid of the irregularities capable of disrupting the shape of the pipe, which means its tightness of the compound.
After that, fix the end of the pipe in a special device and insert the roller fungus into it. A thread shaft is put on top of the fungus, which is attached on another fixing device. Rotate the lever occurs a change in the shape of a cut part of the pipe. Then, depending on the presence or absence of threads, it cuts it on the pipe. In most cases, all brake tubes are manufactured without it.
Install the new end of the tube into the mounting device and tighten the mount nut. Before installing a new tube, it is necessary to clean the sealed part from fat. To do this, it is enough to treat it with acetone or gasoline. After all these events, the fitting is installed in its place, the brake fluid is poured into the system, it is pumping out and after that the car can be operated again.
Video - How and how to unravel the tips of the brake tubes
On this, the brake tubing is complete. As you can see, it is not a complicated procedure and it will be able to cope with almost any car enthusiast, which will have a set of roller set and other garage inventory.
