Production process design of nodular cast iron
The production process of nodular cast iron to be designed in the experiment mainly includes melting process, molding process, spheroidizing […]
The production process of nodular cast iron to be designed in the experiment mainly includes melting process, molding process, spheroidizing […]
Trace elements are interfering spheroidizing elements, but due to the neutralization effect of rare earth elements added in production, adding
After spheroidizing treatment, spheroidizing elements will make nodular cast iron have a greater tendency to white. At this time, inoculation
(1)Cu Copper plays an important role in controlling the matrix structure of as cast nodular cast iron. Adding copper is
Domestic research on low temperature impact toughness of nodular cast iron started late, but it has developed rapidly in recent
The research on the chemical composition of nodular cast iron provides a reliable basis for the composition design of the
Focusing on the low-temperature impact toughness of nodular cast iron, the relationship and influence between production technology, metallographic structure and
Heat treatment can change the matrix structure of nodular cast iron, eliminate the phenomenon of component segregation in the structure,
Common alloy elements include nickel, copper, aluminum, chromium, vanadium and other elements. 1.Nickel Nickel is a chemical element commonly used
There are five basic elements: carbon, silicon, manganese, phosphorus and sulfur. 1.Carbon Carbon is the direct source of graphite ball.
In terms of heat treatment process, Kadir Kocatepe et al. Studied the effect of high temperature annealing heat treatment process
At present, ferrite and pearlite matrix castings account for more than 90% of the world’s annual output of 18 million
In addition to the study of chemical composition, heat treatment process and metallographic structure, many studies have been carried out
The research on low-temperature impact toughness of nodular cast iron abroad started earlier, mostly concentrated in the United States, Germany,
The nodular cast iron accessories of wind power mainly include the wheel hub, main shaft seat, gearbox, torque arm and
Since its emergence, nodular cast iron has been widely used in the production of cast iron pipe fittings, auto parts,
Casting waste heat normalizing is a process method of normalizing with the help of residual temperature after casting solidification. The
The full name of isothermal quenching is austenitic isothermal quenching. Austenitic isothermal quenched ductile iron (add) is obtained from nodular
(1) The process characteristics and heat transfer mode of iron mold sand coated casting are analyzed. Aiming at the common
As one of the important parts of the engine, the force of the crankshaft is complex in work. The constant
At present, the production of nodular cast iron crankshaft mainly adopts iron mold sand coating casting. The filling, solidification and
1. Floating core There are regular pits on the upper surface of nodular cast iron. After dissecting the nodular cast
The casting adopts the green sand production process, and the sand core is made of coated sand. The mold plate
When the amount of ferrite in the matrix increases, the elongation after fracture increases. The data · s] show that
Numerical simulation analysis is of great significance to optimize the sand coated casting process of iron mold. Although the numerical
Effect of chemical composition on as cast microstructure of nodular cast iron (1) The present situation of nodular cast iron
Normalizing treatment can improve the strength of nodular cast iron crankshaft. The purpose of normalizing nodular cast iron is to
As mentioned earlier, iron mold sand coated casting uses the rigidity of iron mold to eliminate the shrinkage cavity and
The mold filling process has a great influence on the quality of iron mold sand coated castings, which is one
Nodular cast iron crankshaft has been more and more widely cast by iron mold sand coating. As cast nodular cast