Diesel engine oil sump and casting technique

Abstract

The invention relates to a casting technique of a diesel engine oil sump. The casting technique of the diesel engine oil sump is characterized by comprising the following technique steps: a first step of installing a hot core mold of the oil sump on a horizontal core shooting machine, opening the mold, cleaning a mold cavity, spraying a release agent, assembling the mold, shooting sand, solidifying and opening the mold to take out of a sand core; a second step of deslagging of aluminum water, placing a lift tube into the aluminum water to be fixed in a sealed mode and placed below the mold, aligning the lift tube to a feed port of the mold, at the same time, flaming and heating of the mold and evenly spraying zinc oxide to a mold cavity of the mold; a third step of placing the sand core to a corresponding position in the mold and assembling the mold; a fourth step of heating the aluminum water to carrying out lift pouring to obtain a casting, cooling the casting in the mold cavity of the mold to be condensed and opening a box to take out the casting and a fifth step of removing the sand core in the casting, sawing to remove a pouring gate and a dead head, polishing the casting and carrying out shot blasting to obtain the diesel engine oil sump. The diesel engine oil sump is superior in appearance, good in sealing property, good in mechanical properties and durable, and leakage rate of the casting is reduced.

Description

technical field [0001] The invention relates to a diesel engine component and a casting process, in particular to a diesel engine oil pan and a casting process, belonging to the technical field of diesel engine components. Background technique [0002] The diesel engine oil pan is located at the bottom of the body, it is used to close the body, and the oil pan carries the oil required for the lubrication of the moving parts in the body. Most of the existing diesel engine oil pans are large in shape, thin in wall and deep in bottom, and the current manufacturing process generally adopts green sand casting. The oil pan of a diesel engine works at an oil temperature of nearly 200°C and an engine operating at 2500 rpm. The most basic requirement is that no oil leakage occurs. [0003] The existing green sand casting oil pan mainly has the following problems: (1) The appearance quality of the casting is poor, and the error of the blank size is large; (2) When the oil pan body is...

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Problems solved by technology

[0003] The existing green sand casting oil pan mainly has the following problems: (1) The appearance quality of the casting is poor, and the error of the blank size is large; (2) When the oil pan body is installed, a gasket is placed between the oil pan and the body Finally, the seal is fixed with bolts. During long-term use, the sealing effect is not ideal, and the production capacity cannot meet customer requirements. Leakage often occurs during online installation and engineering use.

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