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CRANKSHFT FOR MERCEDES BENZ OM471

2024-09-26


Smelting
Obtaining high temperature and low sulfur pure hot metal is the key to producing high quality ductile iron. Domestic production equipment is mainly based on cupola, and hot metal is not pre-desulfurization treatment; This is followed by less high purity pig iron and poor coke quality. Molten iron is melted in cupola, desulfurized outside the furnace, and then heated and adjusted in induction furnace. In China, the detection of molten iron composition has been generally carried out by vacuum direct reading spectrometer.
moulding
The air impact molding process is obviously superior to the clay sand molding process, and can obtain high-precision crankshaft castings. The sand mold produced by this process has the characteristics of no rebound deformation, which is especially important for the multi-throw crankshaft. Some domestic crankshaft manufacturers from Germany, Italy, Spain and other countries to introduce the air impact molding process, but the introduction of the entire production line is only a very small number of manufacturers.
Electroslag casting
Electroslag remelting technology is applied to the production of crankshaft, so that the performance of cast crankshaft may be comparable to that of forged crankshaft. And has the characteristics of fast development cycle, high metal utilization rate, simple equipment, superior product performance and so on.