Technology of Bi-metal Composite Steel Pipes
1.What is Bi-metal Composite Steel Pipe?
There are many kinds of names,Like Bi-metal Composite Steel Pipe,Corrosion Resistant Alloy (CRA) Clad or Lined Steel Pipes,CRA Mechanical or Metallurgical Composite Pipes,CRA Mechanical Lined Pipes etc.
Those special pipe composited by two different materials including inner(Lining) pipe and outer(backing)pipe.
1-1.Bi-metal Composite Steel Pipes Advantages
- High pressure bearing performance.
- Good rigidity.
- Shock resistance.
- Corrosion Resistance.
- The inner wall is smooth.
- Easy to clean.
- To save energy, save the cost.
2.Principle of Processing Technology.
2-1.Principle of Compound Forming
Its forming principle is use the physical properties of materials.When the force to them, they will change mechanical properties, when the force value within the range of point B and point A.The inner steel will plastic deformation, The backing steel will elastic deformation .When the force disappears, the inner pipe is much tightly attached to outer backing pipe.
2-2.Mechincal Spinning Insert Combining Technology
3.Bi-metal Composite Steel Pipe's 4 kinds of Connection Methods