Hydraulic tubes are pipes used to transmit hydraulic pressure, and are divided into two types: hard pipes and soft pipes. Hard pipes are mainly seamless steel pipes, while soft pipes are pipes formed by bending layered wire mesh and rubber. In the field of mechanical processing and pipeline installation, bending of hydraulic tubes is a common demand. However, whether this purpose can be achieved by fire is a question worth exploring in depth. It is generally not recommended to bend hydraulic tubes by fire, because their material properties may be damaged by high temperature, affecting their strength and sealing. It is recommended to use professional hydraulic tube bending machines or cold bending processes for bending.
Feasibility of fire bending
Fire bending is to use flames to locally
heat the steel pipe, soften it, and then bend it under external force. This
method may have certain applications on ordinary steel pipes, but for hydraulic
tubes, its particularity makes fire bending not an ideal choice.
Hydraulic tubes usually have high strength
and good sealing properties, which depend largely on the microstructure and
chemical composition of their materials. During the fire baking process, high
temperature may destroy the microstructure of the steel pipe, resulting in a
decrease in material properties, such as reduced strength and poor toughness.
In addition, fire baking may also cause problems such as oxidation and
decarburization on the surface of steel pipes, further affecting their service
life and safety.
Potential risks and problems
1. Degradation of material properties: As
mentioned above, high temperature treatment may cause a significant decrease in
the material properties of hydraulic tubes, affecting the stability and safety
of the entire system.
2. Damage to sealing: Steel pipes in
hydraulic systems often need to withstand high pressure, and fire baking and
bending may damage the sealing surface of the steel pipe, resulting in an
increased risk of leakage.
3. Uneven deformation: It is difficult to
accurately control the heating temperature and bending angle during fire baking
and bending, which can easily lead to uneven deformation of steel pipes,
affecting subsequent installation and use.
Alternative solutions and suggestions
In view of the many disadvantages of fire
baking and bending, it is recommended to use a more professional and safe
method to handle the bending needs of hydraulic tubes. The following are some
common alternatives:
1. Hydraulic tube bending machine: Using
the hydraulic principle to cold or hot bend steel pipes, it can accurately
control the bending angle and shape, and has little effect on material
properties.
2. Cold bending process: Bending steel
pipes at room temperature, suitable for occasions with high requirements for
bending accuracy and surface quality.
3. Customized bending: Customized bent
steel pipes according to actual needs not only save the trouble of on-site
processing, but also ensure the quality and safety of the product.
Summary
In summary, it is not recommended to bend
hydraulic tubes by fire. In order to ensure the stability and safety of the
hydraulic system, it is recommended to adopt a more professional and safe
bending method and strictly abide by relevant operating procedures and safety
standards.