Casting technology of vermicular graphite cast iron full-hydraulic redirector body shell cast
A technology of vermicular graphite cast iron and casting process, which is applied in the field of casting technology of vermicular graphite cast iron full hydraulic steering gear casing castings, can solve the problems of wear resistance and pressure difference, poor casting processability, low life and other problems, so as to improve the wear resistance. and fatigue resistance, the effect of solving the large difference in creep rate, and improving stability
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Embodiment 1
[0025] A casting process of vermicular graphite cast iron full hydraulic steering gear body shell casting, comprising the following steps:
[0026] (1) Make and shape the blank mold of the full hydraulic steering gear body, and control the shrinkage rate of 0.75% during the mold making. The pouring system adopts middle injection, and water enters from the thickest part of the casting. The semi-closed casting system is adopted. Runner section ratio A straight: A horizontal: A inside = 2:3:1, the above-mentioned green mold sand mold is used to make a mold with a high-pressure molding machine, and a resin sand core is used;
[0027] (2) Use vermicular graphite cast iron to cast the blank of the full hydraulic steering gear body, put Q10 pig iron, scrap steel and vermicular iron into the melting furnace, heat up to 1520-1550°C for smelting, remove impurities after smelting for 50-60min, and then pass Spectral analysis detects the content of each chemical component, and according t...
Embodiment 2
[0032] A casting process of vermicular graphite cast iron full hydraulic steering gear body shell casting, comprising the following steps:
[0033] (1) Make and shape the blank mold of the full hydraulic steering gear body, and control the shrinkage rate of 0.75% during the mold making. The pouring system adopts middle injection, and water enters from the thickest part of the casting. The semi-closed casting system is adopted. Runner section ratio A straight: A horizontal: A inside = 2:3:1, the above-mentioned green mold sand mold is used to make a mold with a high-pressure molding machine, and a resin sand core is used;
[0034] (2) Use vermicular graphite cast iron to cast the blank of the full hydraulic steering gear body, put Q10 pig iron, scrap steel and vermicular iron into the melting furnace, heat up to 1520-1550°C for smelting, remove impurities after smelting for 50-60min, and then pass Spectral analysis detects the content of each chemical component, and according t...
Embodiment 3
[0039] A casting process of vermicular graphite cast iron full hydraulic steering gear body shell casting, comprising the following steps:
[0040] (1) Make and shape the blank mold of the full hydraulic steering gear body, and control the shrinkage rate of 0.75% during the mold making. The pouring system adopts middle injection, and water enters from the thickest part of the casting. The semi-closed casting system is adopted. Runner section ratio A straight: A horizontal: A inside = 2:3:1, the above-mentioned green mold sand mold is used to make a mold with a high-pressure molding machine, and a resin sand core is used;
[0041] (2) Use vermicular graphite cast iron to cast the blank of the full hydraulic steering gear body, put Q10 pig iron, scrap steel and vermicular iron into the melting furnace, heat up to 1520-1550°C for smelting, remove impurities after smelting for 50-60min, and then pass Spectral analysis detects the content of each chemical component, and according t...
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