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Casting method and casting mould of automobile engine water pump housing

A technology for automobile engines and casting molds, which is used in manufacturing tools, casting molding equipment, casting molds, etc., can solve the problems of complex casting process, long casting time, and inaccurate structure of the inner cavity and water channel of automobile engine water pump casing, and achieves casting operation. Simple, accurate, and simple effects

Inactive Publication Date: 2018-09-21
GUANGDONG ZHAOQING POWER ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing automobile engine water pump casing is usually cast with a sand core placed in the mold. The water channel structure of the automobile engine water pump casing cast by this casting method is not accurate enough, and the casting process is complicated and the casting time is long

Method used

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  • Casting method and casting mould of automobile engine water pump housing
  • Casting method and casting mould of automobile engine water pump housing
  • Casting method and casting mould of automobile engine water pump housing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] see Figure 1-Figure 5 . The casting method of the automobile engine water pump casing of the present embodiment comprises the following steps:

[0035] S1. Making casting molds:

[0036] According to the shell shape a and the inner cavity extraction model b of the automobile engine water pump shell to be processed, the upper mold 1, the lower mold 2 and the mold cavity thereof are made, and a liquid hopper 21 for flipping and pouring is arranged on one side of the lower mold 2, The liquid hopper 21 communicates with the mold cavity of the lower mold 2 .

[0037] S2. Combine the sand core and close the mold:

[0038] Use an air gun to clean the mold cavities of the upper mold 1 and the lower mold 2 prepared by S1, and sequentially arrange the lower sand core 4 and the upper sand core 3 in the lower mold 2, set the upper mold 1 cover on the lower mold 2, and heat the upper mold 1 and the lower mold 2, and heat the upper mold 1 and the lower mold 2, so that the temper...

Embodiment 2

[0055] The casting process of the casting method of the automobile engine water pump housing in this embodiment is roughly the same as the casting process of the casting method of the automobile engine water pump housing in Embodiment 1, the difference is that

[0056] In the above S3, the opening time of negative pressure pumping is 5s after pouring, and the duration of negative pressure pumping is 140s.

[0057] In S4, the water cooling start time of the upper mold 1 is 5s after pouring, and the water cooling duration is 30s; the water cooling start time of the lower mold 2 is 15s after pouring, and the water cooling duration is 30s.

[0058] In S4, the air cooling time is 50s.

Embodiment 3

[0060] The casting process of the casting method of the automobile engine water pump housing in this embodiment is roughly the same as the casting process of the casting method of the automobile engine water pump housing in Embodiment 1, the difference is that

[0061] In S3, the opening time of the negative pressure pumping is 5s after pouring, and the duration of the negative pressure pumping is 100s.

[0062] In S4, the water cooling start time of the upper mold 1 is 15s after pouring, and the water cooling duration is 50s; the water cooling start time of the lower mold 2 is 25s after pouring, and the water cooling duration is 50s.

[0063] In S4, the air cooling duration is 70s.

[0064] Compared with the prior art, the casting method of the automobile engine water pump casing of the present invention realizes the casting method of the automobile engine water pump casing through steps such as making a casting mold, combining sand cores and clamping the mold, turning over a...

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Abstract

The invention relates to a casting method of an automobile engine water pump housing. The casting method of the automobile engine water pump housing includes the following steps: S1, casting mould production, S2, sand core assembly and die assembly, S3, overturning and casting, S4, cooling forming and sand shakeout and S5, product detection. According to the casting method of the automobile enginewater pump housing, through the steps of casting mould production, sand core assembly, die assembly, overturning, casting, cooling forming, sand shakeout, product detection and the like, fast and precise casting of the automobile engine water pump housing is achieved, the problems are solved that in the prior art, the casting technology of the automobile engine water pump housing is complex, andthe automobile engine water pump housing inner cavity forming effect is poor; the casting method of the automobile engine water pump housing has the advantages that the process is simple, the time isshort, and the precision is high. The invention further discloses a casting mould of the automobile engine water pump housing.

Description

technical field [0001] The invention relates to the field of automobile engine water pump casings, in particular to a casting method and casting mold for automobile engine water pump casings. Background technique [0002] The automobile engine water pump is an important part of the automobile engine. The centrifugal water pump is widely used in the automobile engine water pump. Its basic structure includes water pump casing, connecting disc or pulley, water pump shaft, water pump impeller and water sealing device and other parts. [0003] Since the water channel structure of the inner cavity of the automobile engine water pump casing is relatively complex, it cannot be reshaped by a mold, but can only be formed by a sand core. Therefore, the engine water pump casing generally needs to be cast with the help of a sand core. Existing automobile engine water pump housings are usually cast with a sand core placed in a mold. The water channel structure of the inner cavity of the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/22B22C9/02
CPCB22C9/02B22C9/22
Inventor 何韶郭锦强李维明周军航林润琛
Owner GUANGDONG ZHAOQING POWER ACCESSORIES
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