Air channel control system suitable for counter-pressure casting

A technology of differential pressure casting and gas path control, applied in the field of differential pressure casting, can solve problems such as poor gas pressure control, unreasonable gas channel design, unsatisfactory casting molding effect, etc., and achieve good practicability, popularization, and structure Simple, small gas pressure fluctuation effect

Inactive Publication Date: 2017-11-21
CHENGDU XINGYU PRECISION CASTING
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  • Abstract
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Problems solved by technology

However, in the existing differential pressure casting process, due to poor gas pressure control and unreasonable gas channel design, the casting molding effect is not ideal.

Method used

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  • Air channel control system suitable for counter-pressure casting

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Embodiment Construction

[0013] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the present invention provides a differential pressure casting air circuit control system, which is suitable for differential pressure casting. The system includes an air compressor 1, a compressed air oil-water separator 2, a dryer 3, an air intake system, a differential pressure casting mold 4 and an exhaust system connected in sequence. The air compressor 1 provides an air source for the entire system, and the compressed air oil-water separator 2 is used to separate the oil in the compressed air, so that the compressed air entering the differential pressure casting mold 4 is clean and pure, ensuring that the differential pressure casting mold 4 While extending the service life, the molding quality of castings is guaranteed. The dryer 3 is used to filter the compressed air provided by the air compressor to remove...

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Abstract

The invention specifically relates to an air path control system suitable for differential pressure casting, which includes an air compressor, a compressed air oil-water separator, a dryer, an air intake system, a differential pressure casting mold and an exhaust system connected in sequence; The air system includes a first intake passage and a second intake passage; the exhaust system includes a first exhaust passage and a second exhaust passage, and the first intake passage, the second intake passage, the first row Throttle valves are respectively arranged on the air passage and the second exhaust passage. The system controls the air intake and exhaust of the differential pressure casting mold, so that the air intake during the differential pressure casting process is stable, and the gas pressure fluctuations during the pressure holding process are small, thereby ensuring the molding quality of the casting. The system is simple in structure, reasonable in design, and has good practicability and popularization.

Description

technical field [0001] The invention relates to the technical field of differential pressure casting, in particular to an air path control system suitable for differential pressure casting. Background technique [0002] Differential pressure casting is an advanced liquid forming process. It makes the molten metal in the crucible fill the mold with differential pressure from bottom to top along the catheter under the action of gas pressure. Using the differential pressure casting method, large complex thin-walled castings can be produced. . The castings produced by it have the characteristics of precise size, high yield, good mechanical properties and high internal quality, so differential pressure casting has been widely used in our country. However, in the existing differential pressure casting process, due to poor control of gas pressure and unreasonable design of gas passages, the molding effect of castings is not ideal. Contents of the invention [0003] The purpose ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D18/08B22D18/04
CPCB22D18/08B22D18/04
Inventor 赵逢荣李玉兰李程王峰
Owner CHENGDU XINGYU PRECISION CASTING
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