Spiral groove cast-in type air cylinder sleeve and preparation method thereof
A cylinder liner and spiral groove technology, which is applied in the field of energy-saving and lightweight spiral groove cast-in cylinder liner and its preparation, can solve the problems of black smoke from exhaust, low bonding strength, and pollute the environment, so as to improve the processing accuracy and size High stability and reduced labor intensity
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[0017] Example 1
[0018] An energy-saving and lightweight spiral groove cast-in type cylinder liner, the chemical composition of which is calculated as the following weight percentages (%): C: 2.8, Si: 1.2, P: 0.2, S: 0.06, Mn: 0.3, Cu: 0.3, Cr : 0.2, Mo: 0.1, Sn: 0.1, V: 0.05, and the remainder is Fe.
[0019] The preparation method of the above-mentioned energy-saving and lightweight spiral groove cast-in type cylinder liner comprises the following steps:
[0020] (1) The raw materials are batched according to the proportion, and the molten iron is obtained by smelting with an intermediate frequency induction furnace. Ferrosilicon inoculant, and the amount added is 0.4% of the mass of the molten iron, and the second inoculation treatment is 75 strontium silicon inoculants, and the amount added is 0.1% of the mass of the molten iron;
[0021] (2) Cylinder liner castings are prepared by centrifugal casting process of metal mold wet paint. The casting temperature of molten...
Example Embodiment
[0026] Example 2
[0027] An energy-saving and lightweight spiral groove cast-in type cylinder liner, the chemical composition of which is calculated as the following weight percentages (%): C: 3, Si: 1.6, P: 0.35, S: 0.1, Mn: 0.5, Cu: 0.5, Cr : 0.35, Mo: 0.2, Sn: 0.15, V: 0.03, and the balance is Fe.
[0028] The preparation method of the above-mentioned energy-saving and lightweight spiral groove cast-in type cylinder liner comprises the following steps:
[0029] (1) The raw materials are batched according to the proportion, and the molten iron is obtained by smelting with an intermediate frequency induction furnace. Ferrosilicon inoculant, and the added amount is 0.6% of the mass of the molten iron, and the second inoculation treatment uses a 75-silicon strontium inoculant, and the added amount is 0.2% of the mass of the molten iron;
[0030] (2) Cylinder liner castings are prepared by centrifugal casting process of metal mold wet paint. The casting temperature of molte...
Example Embodiment
[0033] Example 3
[0034] An energy-saving and lightweight spiral groove cast-in type cylinder liner, the chemical composition of which is calculated as the following weight percentages (%): C: 3.5, Si: 2.1, P: 0.5, S: 0.12, Mn: 0.7, Cu: 0.7, Cr : 0.5, Mo: 0.4, Sn: 0.2, V: 0.15, and the remainder is Fe.
[0035] The preparation method of the above-mentioned energy-saving and lightweight spiral groove cast-in type cylinder liner comprises the following steps:
[0036] (1) The raw materials are batched according to the proportion, and the molten iron is obtained by smelting with an intermediate frequency induction furnace. Ferrosilicon inoculant, and the added amount is 0.8% of the mass of the molten iron, and the second inoculation treatment uses a 75-silicon strontium inoculant, and the added amount is 0.3% of the mass of the molten iron;
[0037] (2) Cylinder liner castings are prepared by centrifugal casting process of metal mold wet paint. The casting temperature of mol...
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