Gear chamber cover and preparation method thereof

[0020] A gear chamber cover, comprising the following chemical composition in weight percentage: C3.6%, Si1.75%, Mn0.5%, S0.03%, P0.5%, and the balance is iron.

[0021] The preparation method of the gear chamber cover includes the following sequential steps:

[0022] (1) use water glass, red clay and sandy soil to prepare sand mold;

[0023] (2) Ironmaking: Add clean and dry ordinary steel scrap, pig iron, and carbon-increasing waste electrodes into the furnace, heat and melt, raise the temperature to 1550°C, and add preheated ferromanganese and ferrosilicon 10 minutes before tapping Carry out precipitation deoxidation and adjust the composition;

[0024] (3) Casting molding: Slag removal is performed on the molten iron once, and then the molten iron is poured into the ingot mold. The pouring temperature of the molten steel is 1350°C. The pouring is first slow, medium fast, and then fine;

[0025] (4) Mold removal and sand cleaning: open the mold after cooling for 6 hours, sep

[0028] A gear chamber cover, comprising the following chemical composition by weight percentage: C3.8%, Si1.9%, Mn00.6%, S0.05%, P0.10%, and the balance is iron.

[0029] The preparation method of the gear chamber cover includes the following sequential steps:

[0030] (1) use water glass, red clay and sandy soil to prepare sand mold;

[0031] (2) Ironmaking: Add clean and dry ordinary steel scrap, pig iron, and carbon-increasing waste electrodes into the furnace, heat and melt, raise the temperature to 1500°C, and add preheated ferromanganese and ferrosilicon 10 minutes before tapping Carry out precipitation deoxidation and adjust the composition;

[0032] (3) Casting molding: Slag removal is performed on the molten iron once, and then the molten iron is poured into the ingot mold. The pouring temperature of the molten steel is 1300°C, and the pouring is first slow, medium fast, and then fine;

[0033] (4) Mold removal and sand cleaning: open the mold after cooling for 3 hours

[0036] A gear chamber cover comprises the following chemical components in weight percentage: C3.5%, Si1.6%, Mn0.1%, and the balance is iron.

[0037] The preparation method of the gear chamber cover includes the following sequential steps:

[0038] (1) use water glass, red clay and sandy soil to prepare sand mold;

[0039] (2) Ironmaking: Add clean and dry ordinary steel scrap, pig iron, and carbon-increasing waste electrodes into the furnace, heat and melt, raise the temperature to 1530°C, and add preheated ferromanganese and ferrosilicon 10 minutes before tapping Carry out precipitation deoxidation and adjust the composition;

[0040] (3) Casting molding: Slag removal is performed on the molten iron once, and then the molten iron is poured into the ingot mold. The pouring temperature of the molten steel is 1330°C. The pouring is first slow, medium fast, and then fine;

[0041] (4) Mold removal and sand cleaning: open the mold after cooling for 4 hours, separate and finely gr