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Annular cooling system of differential pressure casting machine

A technology of differential pressure casting machine and annular cooling, which is applied in the field of differential pressure casting machine annular cooling system and differential pressure casting machine. The effect of refined processing and improved utilization

Active Publication Date: 2018-07-27
青岛航大新材料技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficult to achieve uniform cooling, reducing casting yield

Method used

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  • Annular cooling system of differential pressure casting machine

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Embodiment 1

[0033] Next, the present invention will be further described by using the differential pressure casting machine with the above-mentioned annular cooling parts to carry out differential pressure casting process to the aluminum alloy wheel parts. The joint part is most likely to produce shrinkage cavity and shrinkage porosity, so the above-mentioned part needs to be cooled in the actual casting process. At present, it is mainly used to directly blow, blow or spray the part with multiple nozzles surrounding the hot joint part. . Since the hot spot is around the wheel, the nozzle is essentially cooled by a point, and then the temperature balance between the parts is achieved by the heat dissipation of the mold itself. Since the solidification time of the wheel part is short, the mold has no time to transfer heat, so it cannot Realize the uniform cooling of the hot section, resulting in lower product yield. And adopt cooling system structure disclosed by the present invention to s...

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Abstract

The invention discloses an annular cooling system of a differential pressure casting machine. The annular cooling system comprises a high-pressure compressed gas source, a water source, a cooling water pipe, a cooling air pipe, double-fluid atomization nozzles and a ring pipe. The cooling water pipe is connected with the water source, the cooling air pipe is connected with the compressed gas source, and the cooling water pipe and the cooling air pipe are connected with the double-fluid atomization nozzles on the other side. The double-fluid atomization nozzles are connected into the atomization ring pipe arranged around a die. A circular seam aligned with the die hot joint position is arranged on the inner side of the ring pipe. Every two double-fluid atomization nozzles are arranged in acrossed manner relative to the atomization ring pipe, and a certain included angle is formed between every two double-fluid atomization nozzles. Each set of double-fluid atomization nozzles spray water mist in an obliquely-opposite manner, after the water mist enters the atomization ring pipe, is in mutual collision and is crossed in the pipe, water mist is sprayed out of the inner side circular seam of the atomization ring pipe, annular spray mist is formed and is sprayed to the die, and uniform cooling is conducted.

Description

technical field [0001] The invention belongs to the technical field of casting equipment, and in particular relates to an annular cooling system of a differential pressure casting machine and a differential pressure casting machine equipped with the system. Background technique [0002] The differential pressure casting method is a new casting method developed in the early 1960s, which has the advantages of both low pressure casting and pressure kettle casting. It has very obvious advantages in the production of large, complex, thin-walled, precise, high-quality high-strength light alloy castings. Differential pressure casting is based on low-pressure casting equipment. A sealed cover is added to the casting mold, and the cover is filled with compressed gas, so that the casting mold is under a certain pressure of the gas. When the molten metal is filled, the pressure of the gas in the holding furnace is greater than the pressure of the gas in the mold, and the filling, pres...

Claims

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Application Information

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IPC IPC(8): B22D18/04B22D18/08
CPCB22D18/04B22D18/08B22D27/04
Inventor 张花蕊陶同祥张虎
Owner 青岛航大新材料技术有限公司
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