Composite pipe is a kind of engineering pipeline that develops rapidly nearly ten years abroad, it has wide varieties and functions. At present, domestic and overseas bimetal composite pipe is mostly formed by the mechanical method (explosion forming, tube hydro forming, drawing, rolling, etc. ), both inside and outside layer metal is simple mechanical bonding, the combining boundary exists macroscopic clearance, so it is hard to meet the high-end user’s requirements.
Metallurgical bonding bimetal composite pipe of Sunny Steel is the combination of primary industry material and high technology of metallurgical process, through the typical hot extrusion or hot extrusion and cold forming process, metallurgical bonding interface of multiple material and base material can be achieved, so as to obtain high quality composite pipe. At the same time, as the pipe forming technology is extrusion process and the extrusion process is a three compressive stress state, so the performance difference of pipe in vertical and horizontal is small and the quality is superior. It is widely used in high temperature and high pressure, strong corrosion, high wear and tear and other harsh working environment such as petroleum, chemical, refinery, gas, boiler, power plant, mining machinery, ship, vehicles and so on.
Superior Performance:
1) Inside and outside layer is metallurgical bonding, base and multiple layers have enough bonding strength which is more than 300Mpa in normal conditions.
2) Composite material can enhance strength and toughness of the corresponding base material, achieving mechanical properties complementary.
3) Different brand of base material can obtain different mechanical properties for composite pipe.
4) Different performance of composite materials can obtain good resistance to high temperature and high temperature and high pressure, to bad environment corrosion and wear resistance ability, extending the service life of steel pipe.
5) Such as the chloride ion stress corrosion cracking, crack growth will meet base material and stop, good corrosion resistance of interface alloy can still guarantee the safety of pipe.
6) Good ductility and larger interfacial bonding strength which can realize reprocessing such as any turning, cutting, tapping, heating bending, pushing tee system, reducing, etc.
7) The internal and external layer metal has enabled the real metallurgical bonded, both inside and outside layer metal formed a solid concrete so welding of Bi-metal pipe is the same as single metal pipe.
Composite pipe is a kind of engineering pipeline that develops rapidly nearly ten years abroad, it has wide varieties and functions. At present, domestic and overseas bimetal composite pipe is mostly formed by the mechanical method (explosion forming, tube hydro forming, drawing, rolling, etc. ), both inside and outside layer metal is simple mechanical bonding, the combining boundary exists macroscopic clearance, so it is hard to meet the high-end user’s requirements.
Metallurgical bonding bimetal composite pipe of Sunny Steel is the combination of primary industry material and high technology of metallurgical process, through the typical hot extrusion or hot extrusion and cold forming process, metallurgical bonding interface of multiple material and base material can be achieved, so as to obtain high quality composite pipe. At the same time, as the pipe forming technology is extrusion process and the extrusion process is a three compressive stress state, so the performance difference of pipe in vertical and horizontal is small and the quality is superior. It is widely used in high temperature and high pressure, strong corrosion, high wear and tear and other harsh working environment such as petroleum, chemical, refinery, gas, boiler, power plant, mining machinery, ship, vehicles and so on.
Manufacturing of Bi-metal Composite Seamless Tube & Pipe:
