Production technology of material applicable to cylinder body and cylinder cover of diesel engine
A technology for diesel engines and production processes, applied in engine components, machines/engines, cylinder heads, etc., can solve the problems of proportional control, high production cost of cylinder block and cylinder head castings, and high cost per ton, to improve tensile strength and The effect of hardness, improving casting process performance and reducing production cost
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Embodiment 1
[0053] A kind of production technology of diesel engine block, cylinder cover material, comprises the steps:
[0054] Step (1), equipment preparation: the equipment adopts medium frequency induction furnace;
[0055] Step (2), ingredients: in parts by weight, 37 parts of steel scrap, 20 parts of returned material, 38 parts of iron filings cake, and 1.5 parts of ZT-2 cast iron recarburizer;
[0056] Step (3), feeding: first add 28% of the cast iron recarburizer to the bottom of the electric furnace, and then add iron scraps, scrap steel and returned materials in sequence, and the remaining recarburizer should be added together with the returned materials. Before the remaining 9% of the charge is added, it is required that there is always a return charge to hold down the recarburizer;
[0057] Step (4), melting: power on and melt immediately after adding the returned material, use full power and uninterrupted melting during melting, control the melting temperature of the electr...
Embodiment 2
[0062] A kind of production technology of diesel engine block, cylinder cover material, comprises the steps:
[0063] Step (1), equipment preparation: the equipment adopts medium frequency induction furnace;
[0064] Step (2), ingredients: in parts by weight, 40 parts of steel scrap, 24 parts of returned material, 41 parts of iron filings cake, and 1.8 parts of ZT-2 cast iron recarburizer;
[0065] Step (3), feeding: first add 32% of the cast iron recarburizer to the bottom of the electric furnace, then add iron scraps, steel scrap and returned materials in sequence, and the remaining recarburizer should be added together with the returned materials. The remaining 11% of the furnace charge should be added before the remaining 11%, and it is required that there is always a return charge to hold down the carburizer;
[0066] Step (4), melting: power on and melt immediately after adding the returned materials, use full power and uninterrupted melting when melting, control the me...
Embodiment 3
[0071] A kind of production technology of diesel engine block, cylinder cover material, comprises the steps:
[0072] Step (1), equipment preparation: the equipment adopts medium frequency induction furnace;
[0073] Step (2), ingredients: in parts by weight, 38 parts of steel scrap, 21 parts of returned materials, 40 parts of iron filings, and 1.6 parts of ZT-2 cast iron recarburizer;
[0074] Step (3), feeding: first add 31% of the cast iron recarburizer to the bottom of the electric furnace, and then add iron scraps, scrap steel and returned materials in sequence, and the remaining recarburizer should be added together with the returned materials. The remaining 9.5% of the furnace charge should be added before, and it is required that there is always a return charge to hold down the carburizer;
[0075] Step (4), melting: power on and melt immediately after adding the returned material, use full power and uninterrupted melting during melting, control the melting temperatur...
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