Low-pressure aluminum alloy casting machine with vacuum deairing system

A low-pressure casting machine and aluminum alloy technology, which is applied in the field of casting machines, can solve problems such as inability to perform degassing operations, and achieve the effects of safe and reliable design, high work efficiency, and simple design

Inactive Publication Date: 2014-11-19
南京博乔机械有限公司
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  • Abstract
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Problems solved by technology

[0005] The purpose of the present invention is to provide a low-pressure aluminum alloy with a vacuum degassing system that can degas during the casting proce

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  • Low-pressure aluminum alloy casting machine with vacuum deairing system

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] Such as figure 1 The shown a kind of aluminum alloy low-pressure casting machine with vacuum degassing system includes working machine 1, holding furnace 6 installed at the lower end of working machine 1, hydraulic pump station 10 and air pressure control box 9, and the hydraulic pump The station 10 is connected with the working machine 1 through a hydraulic pipe 11, and an air intake pipe 5 is arranged between the air pressure control box 9 and the holding furnace 6. Including a vacuum pump 8, a vacuum pipeline 7 is connected between the vacuum pump 8 and the holding furnace 6, a vacuum valve 3 is installed on the vacuum pipeline 7, and a pressure balance valve is arranged on the vacuum pipeline 7 between the holding furnace 6 and the vacuum valve 3 2.

[0018] The present invention makes full use of the characteristic of the airtightness of the holding furnace ca...

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Abstract

The invention belongs to the field of casting machines, provides a low-pressure aluminum alloy casting machine with a vacuum deairing system and aims to solve the problem that an existing low-pressure aluminum alloy casting machine which adopts compressed inert gases for stir deairing results in high cost and poor deairing effects. A scheme includes that the low-pressure aluminum alloy casting machine comprises a workbench, a holding furnace, a hydraulic pump unit, an air pressure control case and a vacuum pump. The holding furnace is mounted at the lower end of the workbench, the hydraulic pump unit is connected with the workbench through a hydraulic pipe, and an air inlet pipe is arranged between the air pressure control case and the holding furnace. The low-pressure aluminum alloy casting machine is characterized in that an air inlet pressure valve is mounted on the air inlet pipe, a vacuum valve is mounted on a vacuum pipeline which is connected between the vacuum pump and the holding furnace, and a pressure balance valve is arranged on the vacuum pipeline and between the holding furnace and the vacuum valve. Owing to the vacuum deairing system, the low-pressure aluminum alloy casting machine is effective in deairing, and cost on inert gases used for deairing by traditional deairing machines is saved.

Description

technical field [0001] The invention belongs to the field of casting machines, in particular to an aluminum alloy low-pressure casting machine. Background technique [0002] During the casting process of the existing low-pressure casting machine, the dissolved air in the aluminum alloy melt is stirred with compressed inert gas or metal flux before the aluminum alloy melt is subcontracted to the aluminum alloy low-pressure holding furnace. outgassing. Then the molten aluminum is subcontracted into the holding furnace, sealed and then cast. The current degassing method and degassing process are performed before the molten aluminum is subcontracted to the holding furnace or before casting starts, that is to say, the degassing process is performed in an open environment with the furnace mouth open , Once the holding furnace is sealed and low-pressure casting starts, it cannot be degassed again during the casting process. There are following deficiencies in the traditional ope...

Claims

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Application Information

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IPC IPC(8): B22D18/04
Inventor 金永乐
Owner 南京博乔机械有限公司
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