Numerical simulation of solidification process of sand coating on crankshaft iron mold
The finite element analysis software ProCAST is used to simulate the flow field and temperature field in the iron mold […]
The finite element analysis software ProCAST is used to simulate the flow field and temperature field in the iron mold […]
One of the most important parameters in the iron mold sand coated casting process is the thickness of the sand
ProCAST calculates the flow field, as shown in Figure 1. It can be seen that the mold filling speed is
The finite element analysis software is used to simulate the flow field and temperature field in the iron mold sand
Computer numerical simulation generally includes the establishment of geometric model, meshing, pretreatment (determination of initial conditions and boundary conditions), numerical
With the rapid development of automobile industry, the production and sales of engine are also increasing year by year. As
Iron mold coated with sand has long manufacturing cycle, high cost and complex process test. Once the process design fails,
Iron mold sand coated casting process is a new net forming casting process. The metal mold cavity is covered with
The manufacturing process of cast crankshaft generally starts from the aspects of molten iron melting, spheroidizing treatment, inoculation treatment, alloying,
The commonly used crankshafts at home and abroad are divided into two categories according to materials, forged steel and ductile
In order to reduce the process cost, the mold filling process and casting cooling process were studied respectively. The Nodular
At present, ferrite and pearlite matrix castings account for more than 90% of the world’s annual output of 18 million
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
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
Crankshaft is one of the most important components of automobile engine. For automobile crankshaft, its main function is to realize
Nodular cast iron crankshaft has been more and more widely cast by iron mold sand coating. As cast nodular cast
In the design of shell mold, the feeding of molten iron of nodular iron and the solution of casting defects
(1) carbon equivalent shall be increased as much as possible without causing graphite floating. After the test, the carbon equivalent
The process test of S1100 crankshaft shell in multiple batches is shown in the table. Serial number Material Pouring quantity
Carry out multi batch pouring and anatomical analysis on the shell cast crankshaft, and make corresponding adjustment and improvement: For
1. Melting, spheroidizing and inoculation treatment 1000kW medium frequency induction furnace is adopted for smelting, and the charge is 90%
Through analysis, for the nodular cast iron crankshaft shell casting with higher and higher requirements, the future research work will