Bending of square shaped tube - a procedure in which the product gets bent out of shape. Bending is carried out with your hands or with a special tool. A curved metal shape is obtained on the machine.
Technical characteristics of profile pipes and their features for bending
Before bending the metal recommended familiar with their technical characteristics that is displayed on the positive result of the work. Products have an oval, square, rectangular or flat-oval cross-section. In accordance with the standards GOST proftruby with a circular cross section are shaped tube.
Dimensions of products may be different. The distinguishing features between them is the wall thickness, and sectional area. Determination of plastic possibilities carried out taking into account the aggregate size. This is the minimum allowable size range.
Methods of bending of profile pipes
A flexible metal tube profiled radially held hot and cold method. To facilitate this process, it recommended the use of special tools - billet, pipe benders, lathes.
Machine
A bending machine for prokatochny shaped tube can be purchased or made independently. When using a metal bending installation is carried out cold method. The machine can be semi-automatic and automatic. In the second of these provides a qualitative deflection tube.
Rollers for bending metal - is a device that has two components - a frame and a metal feed rollers. Hand tools used for bending small diameter products. The hydraulically driven rollers are used if proftruba has a thick wall, and its diameter is more than 10 millimeters.
bender
The tool allows you to bend the metal profile pipes in the home properly. The principle of operation of the equipment is based on the provision of high pressure to one or more points, which ensures its bending. The tool has a compact size that simplifies the process of its use in the household. There are manual and hydraulic benders. The second embodiment has larger aggregates efficiency. Produced electric counterparts, which simplifies the process of bending the metal and does not require the participation of masters. When carrying out their one-time purchase impractical procedure.
Bender gives pipe flowing lines. The Hardware of fine sand is poured, and its holes are closed on both sides with wooden plugs or a simple bar. When choosing cork is recommended to see to it that its length is twice the radius. This will eliminate the possibility proftruby strain. Next, the two ends are drilled small holes, through which a gas outlet is provided. In places where the future of the bend is markup. Then, a required portion of a heating and bend.
pig
This method is used in a large radius bend metal. Bending Place the user heats a blowtorch. Pre taken wire diameter of 1.4 millimeter, and make it a spring which is put on the bending place. After heating proftruby its folded blanks, which has a radius of curvature.
Cold bending
This is a simple method that only applies at low temperatures. Take the segment and on one side is worn tube. At the other end of the metal is filled with water. The design is left in the cold as long as the water inside freezes. After this bending is carried out by any tool. This method is used if the material - duralumin, copper, brass and other soft metals.
Before use, the method is recommended to make sure that the wall thickness was not more than 1 millimeter and a diameter - no more than 8 millimeters.
cutting method
Pre recommended to accurately calculate the radius. With three stolon recommended to make mark-cuts. Next, using the bending tool is carried out neat. In places cuts the tube is sealed by welding.
With the use of sand and salt
The composition pipe is filled with sand or salt thereof, which are pre-heated. After heating the segment it is folded in accordance with a predetermined pattern radius.
How the flexible tube radially
Profiled pipe bend radially for greenhouses in several ways. If the need for manipulation is a rare, then used hand-bender. Bending is carried out by cold and hot. Equipment for bending consists of a frame that has a clip. It moves on the basis of, whereby the flexible material is held.
Before flexible defined inertia radius proftruby circular or square cross section. When selecting a tool, the master must be guided by the recommendations of the experts:
- Is used to flex the lever device, by which rotation of 90 degrees can be generated.
- When using the lever device is recommended to use metal of a flexible material - copper, aluminum, steel, stainless steel. Their diameter must be not more than 20 millimeters.
- Crossbow benders are sick complex structure that requires the product to lay in two feet, cranks around its axis.
- If the cross section is less than 10 centimeters, it is possible to use a crossbow installation for bending the metal at an angle of 90 degrees.
- For ease of manipulation is recommended to place the bending heated or cooled.
- If the bending is carried out by rolling, it is recommended to use the equipment, which has three rolls.
The pressure on the workpiece during bending is carried various types of rods - a manually operated hydraulic, mechanical screw, hydraulic power.
How to make a manual bending machine according to the drawings with their own hands
Before you make the machine with his hands, it is recommended to get acquainted with his drawing. It consists of:
- conveyor;
- bed;
- clamps;
- the upper roller;
- bracket, which has a guide corners.
All of these elements are initially collected separately and then - together. recommended buy the machine structural members before performing assembly. Execution of works on the assembly tool requires the use of the welding machine and other tools.
Stand on your mind like a normal table or workbench. Her legs are made of channel bar or segment of the product, the diameter of which is more than 10 centimeters. The legs are connected to the table surface by welding, providing reliable mounting.
The conveyor consists of two rollers which are arranged on both sides of the frame. Its assembly is carried out in accordance with the drawings. Chain sprocket firmly fixed on the shafts, and then place the tensioning mechanism, which includes a structure similar to a star.
Clamping mechanism is made of a simple clamp. After all the structural elements can check that the rolling rollers and the mechanism as a whole. Tests are carried out using pipes of different diameters. Before the procedure is carried out the calculation of the parameters - angle and bending points. Quality work tool is guaranteed, if the calculations and the results coincide with millimeter precision.
At the final stage is fixed on a frame clamping mechanism and the conveyor. To do this, use screws that are threaded screwdriver. Being tested tool performance.
Recommendations and possible errors
In the manufacture of the tool with their own hands the user is guided by the recommendations of the experts:
- When assembling the conveyor are recommended to carefully install chain wheels, as its improper fixation causes of equipment failure.
- During manufacture of the pressure mechanism recommended strict adherence to all of the main dimensions which are indicated in the drawings. If there are deviations nenevozmozhno ensure accuracy bending radius pipes.
- After manufacturing the tool behind it is recommended to provide appropriate care that will positively displayed on the duration of use.
- In use, the tool is monitored operation of each of its parts, as well as limit the possibility of adverse effects of environmental factors.
- On the status of the device adversely affect rainfall, therefore recommended to provide good protection against moisture rolling rollers. Otherwise, it will appear rust, which negatively displayed on the equipment.
- After working with the machine clean it from dust, dirt and sand.
- If trubogibny machine has an electric drive, to ensure its high performance and efficiency in the provision of recommended regular maintenance or inspection.
Bending of metal - is a universal procedure that allows proftruby bend under a certain node. With a small radius can be made by hand manipulation. If the pipe wall is thick and impressive range, it is recommended to use benders, which can be bought or make your own hands.
