Low-heat-dissipation motorcycle engine manufacturing method
A technology for motorcycles and engines, applied in metal material coating process, fusion spraying, coating and other directions, can solve the problems of simultaneous coating of cylinder heads, easy peeling of ceramic layers, poor thermal shock performance of pure ceramic parts, etc.
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Embodiment 1
[0019] First, the piston, cylinder head, and cylinder block of the motorcycle engine are ultrasonically cleaned with gasoline and alcohol in sequence. After cleaning, the non-sprayed area is pasted and protected with high-temperature tape, and the sprayed area is sprayed with No. 40 corundum grit at 0.3 MPa. Sand treatment, and use high-pressure air to blow off the residual gravel; then spray the bonding layer on the top surface of the piston, the inner surface of the cylinder head, and the outer surface of the cylinder body. The thickness of the layer is controlled at 50 μm, and the spraying parameters are: aviation kerosene flow rate 700L / min, oxygen flow rate 600L / min, powder feeding rate 25g / min, spraying distance 140mm; the outer surface of the cylindrical cylinder is bonded by atmospheric plasma spraying NiCrAl Layer, the thickness is controlled at 50μm, and the Laval nozzle plasma spray gun is used for spraying. The spraying parameters are: current 500A, argon gas flow r...
Embodiment 2
[0021] First, the piston, cylinder head, and cylinder block of the motorcycle engine are ultrasonically cleaned with gasoline and alcohol in sequence. After cleaning, the non-sprayed area is pasted and protected with high-temperature tape, and the sprayed area is sprayed with No. 40 corundum grit at 0.3 MPa. Sand treatment, and use high-pressure air to blow off the residual gravel; then spray the bonding layer on the top surface of the piston, the inner surface of the cylinder head, and the outer surface of the cylinder body. The thickness of the layer is controlled at 100μm, and the spraying parameters are: aviation kerosene flow rate 900L / min, oxygen flow rate 850L / min, powder feeding rate 40g / min, spraying distance 160mm; the outer surface of the cylindrical cylinder is bonded by atmospheric plasma spraying NiCrAl Layer, the thickness is controlled at 100μm, and the Laval nozzle plasma spray gun is used for spraying. The spraying parameters are: current 550A, argon flow rate...
Embodiment 3
[0023] First, the piston, cylinder head, and cylinder block of the motorcycle engine are ultrasonically cleaned with gasoline and alcohol in sequence. After cleaning, the non-sprayed area is pasted and protected with high-temperature tape, and the sprayed area is sprayed with No. 40 corundum grit at 0.3MPa Sand treatment, and use high-pressure air to blow off the residual gravel; then spray the bonding layer on the top surface of the piston, the inner surface of the cylinder head, and the outer surface of the cylinder body. The thickness of the layer is controlled at 60μm, and the spraying parameters are: aviation kerosene flow rate 800L / min, oxygen flow rate 650L / min, powder feeding rate 30g / min, spraying distance 150mm; the outer surface of the cylindrical cylinder is bonded by atmospheric plasma spraying NiCrAl Layer, the thickness is controlled at 60μm, and the Laval nozzle plasma spray gun is used for spraying. The spraying parameters are: current 525A, argon gas flow rate...
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