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Engine block casting sand core, core structure, casting method and engine block

A technology of engine cylinder block and casting type, which is applied in the direction of engine components, casting molding equipment, machines/engines, etc. It can solve problems such as fracture and sand core deformation, and achieve the effect of smooth ventilation and simple casting process

Inactive Publication Date: 2016-10-12
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] The purpose of the present invention is to solve the problem of deformation and fracture of the sand core in the casting process of the engine block, for this reason the embodiments of the present invention provide the following technical solutions:

Method used

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  • Engine block casting sand core, core structure, casting method and engine block
  • Engine block casting sand core, core structure, casting method and engine block
  • Engine block casting sand core, core structure, casting method and engine block

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Embodiment Construction

[0037] combine Figure 6 and Figure 7 , the engine block casting sand core in this embodiment includes a first sand core body 400, and figure 2 The same as the sand core 200 in , the first sand core body 400 has a first weakened part 410 , and the first weakened part 410 has a first molding surface 411 and a first non-modeling surface 412 . and figure 2 The difference between the sand core 200 in this embodiment is that in this embodiment, the first non-modeling surface 412 protrudes toward both sides of the first sand core body 400 to form convex portions 430 . The first sand core body 400 is used for figure 1The formation of the oil return cavity 110 or the upper air cavity 120 in the middle. Taking the molding of the oil return cavity 110 as an example, the first weak part 410 of the first sand core body 400 is the main oil channel forming part of the engine block, and this part needs to be reserved for the main oil channel processing after casting More metal materi...

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Abstract

The invention provides an engine cylinder casting sand core. The engine cylinder casting sand core comprises a first sand core body, wherein the first sand core body is provided with a first thin part; the first thin part is provided with a first molding surface and a second un-molding surface; the first molding surface extends towards the two sides of the firs sand core body to form bulge parts. The invention further provides an engine cylinder casting sand core structure, an engine cylinder casting method and an engine cylinder. The problem that the sand core deforms and is fractured in a casting process of the engine cylinder can be solved.

Description

technical field [0001] The invention relates to the field of engine casting, in particular to an engine cylinder casting sand core, a core structure, a casting method and an engine cylinder. Background technique [0002] The cylinder block is the skeleton of the engine, and all components and auxiliary system components must be installed on the cylinder block. In order to ensure that the cylinder works under complex stress conditions such as tension bending and vibration, there are high requirements for the strength and rigidity of the cylinder. [0003] Such as figure 1 As shown, the design of the engine block 100 basically adopts a frame structure. At present, most of the oil return chambers 110 and upper air chambers 120 are distributed on the left and right sides of the cylinder body, and the middle part of the oil return chamber 110 is arranged with a Main oil passage 130. On the one hand, the lubricating oil in the cylinder head returns to the oil pan through the oi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/10F02F1/20F02F1/22
Inventor 胡志胜胡必谦兰剑郑久林李波刘芯娟喻春凤
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD