Composite pipe due to give full play to the high steel strength, good toughness , impact resistance, good weldability and corundum high hardness, high wear resistance, corrosion resistance, heat resistance, low steel overcome hardness , poor wear resistance and toughness of ceramic poor characteristics. Thus , the composite pipe has good wear resistance, heat resistance, corrosion resistance and resistance to mechanical shock and thermal shock, weldability and good overall performance. Wear and corrosion pipeline ideal particulate materials , grinding, and other corrosive media .
Precautions
1 metal-ceramic composite pipe high hardness, good toughness, but in the handling, installation process moving light to light , to avoid serious collisions, in particular to avoid direct metal instruments
Ceramic layer end face contact or collision .
2 When installing pipes, pipe centerline to be on the positive, the level to leveling , to ensure that both ends of the accurate surface at both ends to control the amount of dislocation within 1.0mm.
(3) When using a flexible tube connected to a flexible pipe nipple connection kit is installed at both ends of the pipe insertion length to adjust the symmetry , since the thermal expansion coefficient of composite steel pipe 1 /3, thus stretching the gap can be reduced to 3 - 5mm.
4 When flange connection , it must be flush with the flange face composite pipe ends .
5 Due to the excellent performance of the composite pipe welding , so welding pipe connection mode manner, when its groove weld using 70 ° -90 °, the blunt edge of 2-4mm without leaving gaps , should adopt a small current welding.