Built-in cylinder liner of automobile engine and powder metallurgy preparation method thereof
An automobile engine and powder metallurgy technology, applied in the metallurgical field, can solve the problems of wear, increased cylinder wear, maintenance wear, etc., and achieve the effects of strong wear resistance, good heat dissipation, and low energy consumption
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[0023] Example 1
[0024] A built-in cylinder liner of an automobile engine, which is made of the following raw materials in parts by weight: 14 parts of silicon carbide, 13 parts of silicon nitride, 11 parts of silicon dioxide, 8 parts of zirconium silicate, 4 parts of zirconium oxide, and nano oxide 7 parts of copper, 9 parts of nano graphene powder, 3 parts of nano aluminum silicate, 7 parts of nano magnesium oxide, 5 parts of dispersant, and 18 parts of water.
[0025] A powder metallurgical preparation method of an automobile engine built-in cylinder liner includes the following steps:
[0026] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water according to the mass ratio of 1:1.2 during the grinding process, add dispersant after thorough mixing, and continue ball milling for 3.5 hours;
[0027] (2) Drying the mixture obtained in step (1), spray granulating;
[0028] (3) Put the powder mixture obtained in step (2), zirconium sili...
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[0031] Example 2
[0032] A built-in cylinder liner of an automobile engine, which is made of the following raw materials in parts by weight: 33 parts of silicon carbide, 28 parts of silicon nitride, 22 parts of silicon dioxide, 14 parts of zirconium silicate, 12 parts of zirconium oxide, and nano oxide 13 parts of copper, 15 parts of nano graphene powder, 7 parts of nano aluminum silicate, 11 parts of nano magnesium oxide, 15 parts of dispersant, and 30 parts of water.
[0033] A powder metallurgical preparation method of an automobile engine built-in cylinder liner includes the following steps:
[0034] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water at a mass ratio of 1.2:1.5 during the grinding process, add dispersant after mixing well, and continue ball milling for 5 hours;
[0035] (2) Drying the mixture obtained in step (1), spray granulating;
[0036] (3) Place the powder mixture obtained in step (2), zirconium silicate, zi...
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[0039] Example 3
[0040] A built-in cylinder liner of an automobile engine, which is made of the following raw materials in parts by weight: 37 parts of silicon carbide, 32 parts of silicon nitride, 26 parts of silicon dioxide, 17 parts of zirconium silicate, 17 parts of zirconium oxide, and nano oxide 17 parts of copper, 19 parts of nano graphene powder, 11 parts of nano aluminum silicate, 13 parts of nano magnesium oxide, 18 parts of dispersant, and 35 parts of water.
[0041] A powder metallurgical preparation method of an automobile engine built-in cylinder liner includes the following steps:
[0042] (1) Add silicon carbide, silicon nitride and silicon dioxide fine powder into the ball mill, add water at a mass ratio of 1.4:1.5 during the grinding process, add dispersant after mixing thoroughly, and continue ball milling for 5.5 hours;
[0043] (2) Drying the mixture obtained in step (1), spray granulating;
[0044] (3) Place the powder mixture obtained in step (2), zirconium sil...
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