High purity pig iron, scrap steel, ferrochromium, ferrovanadium, ferromolybdenum and other master alloys are selected. Copper and tin are added as pure metals and melted in a 20 t medium frequency induction furnace. Carburizing agent is used to adjust the carbon content of molten iron. After melting, raise the...
With the continuous development of marine low-speed diesel engine in the technical direction of high intensity, ultra-long stroke, ultra-high burst pressure and effective pressure, high output power and so on, the performance requirements of cylinder liner materials are also increasing. The traditional gray cast iron cylinder liner has low...
The effects of vibration frequency and molten iron treatment temperature on graphite morphology and primary phase of vermicular graphite cast iron in lost foam casting were studied. Vibration solidification and high liquid iron treatment temperature both make the graphite morphology of vermicular cast iron change from vermicular to vermicular...
The cooling curves of typical flake graphite cast iron and nodular cast iron are shown in the figure. It can be seen from the figure that under the condition of the same casting section size and carbon silicon content, the undercooling required to generate flake graphite cast iron is...
Automobile clutch pressure plate is an important part of clutch, which is of great significance to automobile driving safety. The pressure plate is connected to the flywheel through bolts, and the clutch plate is located between the pressure plate and the flywheel. When the vehicle needs engine power to...
The figure shows the hardness change curve of vermicular graphite cast iron prepared under different vibration frequencies. It can be seen from the figure that with the increase of vibration frequency, the hardness value of cast iron alloy first decreases, then increases and then decreases, showing a broken line...
The figure shows the matrix structure of cast iron prepared under different vibration frequencies. Figures (a) – (d) show the matrix structure of cast iron prepared at vibration frequencies of 0,35,50 and 100Hz respectively. It can be seen from the figure that the matrix structure of EPC vermicular cast...
The figure below shows the morphology of primary austenite of cast iron prepared under different vibration frequencies. Figures (a) – (d) show the morphology of primary austenite of cast iron prepared at vibration frequencies of 0, 35, 50 and 100Hz respectively. It can be seen from the figure that...
The figure shows the graphite morphology of cast iron prepared under different vibration frequencies. Figures (a) – (d) show the graphite morphology of cast iron prepared at vibration frequencies of 0, 35, 50 and 100Hz respectively. It can be seen from the figure that the vibration frequency has a...
The figure shows the matrix structure of spiral cast iron with different wall thickness. Among them, figures (a) – (c) are the matrix structure diagrams of samples with thickness of 20,40 and 60mm respectively. The statistical values of pearlite content in Vermicular Cast Iron with different wall thickness are...