Bridge Lamps

We must understand about these knowledge of swelling tube tube

What is a swelling tube

The bloating process has a wide range of applications in power plants, which are generally used in two types of media exchanging calories. The swelling process is applied to the equipment, cold oil, heater and other equipment in the power plant. It is swollen on the tube plate and becomes a device that can separate hot and cold work for heat exchange.


Because the expansion of the bloating tube is the working process of plastic deformation and swelling on the pipeboard by the expansion effect of the bloated tube, the swelling intensity is low, and the pressure to be affected is limited, and the scope of use is limited. This process is simple, the cost is low, and the swelling intensity is small, which is easy to repair, so it is still adopted until now.

The hydraulic bloating tube is composed of three elements of bloating shell (holder), beads (steel beads), and swelling poles (core axis). The swelling and bloating rod uses GCR15 bearing steel, and the bloating shell uses 45#mid -carbon steel to solve the process, and the progressive angle (HRC55 ° ~ 60 °) and toughness. Open the eight -shaped trapezoidal slot on the shell to prevent swelling beads from falling. When working, the swelling tube is placed in the swelling tube (the bloating shell enters two -thirds), pushes the swelling rod, turning the swelling position counterclockwise to the swelling position, turning the swelling position against the swelling position, turning the swelling position against the swelling position. The pole (batch swelling tube should be used by the swelling tube to make energy sources), the swelling rod affects the swelling beads, and the swelling beads then affect the swelling shell. The axis is promoted; as the bloating rod with a taper is gradually promoted, the inner holes and outer diameters of the swelling are gradually expanded, so that it is closely united with the pipe board to reach the means of connection.

The characteristics of hydraulic bloating tube tubeware

1. When working in the hydraulic bloating tube, perform an all -thin one -thick -thick -thick -intended expansion of any thin thick pipe panel;

2. Swelling the core pipeboard or the multi -pipe plate heat exchanger;

3. To swell for the inner fingerprint or sewing welding;

4. Swelling pressure can be carried out in practice, and the use of computer execution full process control;

5. There is no damage to the pipe bridge after swelling, and there is no reaction to the swelling effect of the swelling connections around the connection;

6. After the swelling is connected, the surplus stress is low, and the stress erosion will not occur casually;


7. The axis direction is not extended after swollen thermal tube swelling, which is slightly extended, which is beneficial to adding operating music;

8. The internal cavity fault in the external tube is large, and the diameter of the swelling rod can be mobilized on the spot;

9. No oil purification at the joint, support the swelling and welding new process;

10. The edge of the heat exchanger with a pipe box can be indirectly swelling, which is extremely convenient;


11. The operating system of the hydraulic swelling tube machine only weighs 2kg, which can be gripped rapidly by single hands, and the progress can reach four to six per cote;

12. The “low -defense bolt” designed by the integrated design of the damaged parts can increase the cost of frequent exchange of “rods, bags, circles, and circles”, and can greatly increase its product power at a certain level.

How to use tube tube utensils

The four types of swelling tubes of straight tube, edge, deep holes, and bearing must be returned to the bloated head first, and then extended the swelling tube into the tube, and then pushed the swelling rods to make the swelling rods, swelling beads, and pipes. After the inner wall is tightly attached to each other, use the spiny wheel wrench or the swelling tube machine to drive the swelling rod to rotate in a clockwise direction, the swelling rod is automatically advanced forward, the swelling beads rotate reverse, crushing the inner wall of the tube, forcing the tube wall metal extension tube The diameter increases until the expansion requirements are reached. When exiting, you only need to rotate the swelling rod counterclockwise, and the swelling rod will automatically exit. After loosening, you can remove it from the tube.

Before the swelling, the adjustment of the bloating tube must be adjusted to the proper position by adjusting the screw to adjust the screw to tighten the screw, and then use the operation method of the four swelling tubes mentioned above.

Deep -hole bloating tubes must be connected to the depth size according to the swelling depth before swelling, adjust the positioning cover to the appropriate position by adjusting the nut, tighten the tight nut, and then use it according to the operation method of the above bloated tube.

The three types of swelling tube control, control, and 90 ° silent edges are controlled by adjusting the screw case to control the size of the swelling tube. The rate is reduced, so the snail case must be spin out before swelling, but it will not fall off. Then the use of the use of the above -mentioned various swelling tubes will be triald. After determining that the bloating tube rate meets the requirements After the position is fixed, formal swelling tube can be performed.

Maintenance and maintenance method of hydraulic bloating tube tubeware

What should I do if the hydraulic bloating tube we often use nowadays should be dealt with? How to protect it? Let us introduce the protection methods for hydraulic bloating tubes.

Open the spiny wheel wrench (manual) or connector (smart control) on the port of the swelling rod, let the standard needle rotate, and after completing the technical standard you need, the rotation position will exit. The bloating machine has a regulatory rotary equipment. When conditioning the swelling tube, the position and depth of the required should be adjusted first, and then after the expansion tube is completed according to the above process. Then, the hydraulic bloating tube that can be operated is cleaned and cleaned with butter or engine oil, puts it in the toolbox, and storage is boring. It is necessary to be placed as the swelling tube is placed, and the swelling tube should be compressed in the same way to avoid the use of errors to lead to the appearance of bloating rods and cracking of beads. Because conflict with the tube will heat up, the mechanical properties will be changed. The use of hydraulic bloating tube and appropriate lubricant should be used to extend the service life.