At what time we have to use the liner technology

For making a bimetallic cylinder, sometimes the liner technology has to be used in process if below 5 cases we met:

1. The length of cylinder is more than the length of furnace and centrifugal machine. You see, the furnace and centrifugal machine have its own certain length, all of the barrel manufacturers worldwide is subject to this limitation;
2. There is special structure on the inner hole of the cylinder, such as groove structure, etc.;
3. When the wall thickness of cylinder is more than 60mm, liner method is applied to ensure the alloy layer gets enough centrifugal force to be molded;
4. If the welding joint is close to the inner hole of cylinder with big flanges, for the sake of reducing the damage on the alloy layer from heat shock of weld, such as cracks and deformation after heating, it is safe and reliable for using liner method;
5. When there is a cylinder with a big opening, a bimetallic liner to be pushed into the inner hole with transition fit, is helpful to reduce the risk of deformation after opening.

Chief Engineer Office
Shanghai Omega Machinery., Ltd