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Vacuum pressure absorbing and casting device

A technology of vacuum pressure and vacuum cover, which is applied in the field of casting equipment, can solve problems such as increased casting costs, achieve high utilization and save production costs

Inactive Publication Date: 2008-07-23
无锡刚正精密吸铸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A complicated set of vacuum equipment is required, which increases the casting cost

Method used

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  • Vacuum pressure absorbing and casting device

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Effect test

Embodiment Construction

[0010] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0011] As shown in the figure: a crucible 12 is set on the smelting furnace 13, and the opening of the crucible 12 is covered with a sealed crucible cover 9, which seals the inner space of the crucible 12, and an air inlet valve 10 is provided on the crucible 12, which can be filled. Shape, hold pressure and exhaust. A liquid riser 8 is provided on the sealed crucible cover 9, and the lower end opening of the liquid riser 8 is inserted into the crucible 12 through the sealed crucible cover 9, and a sealed vacuum cover 3 is provided above the crucible cover 9, and a pressure mold is arranged inside the vacuum cover 3 Frame 6, a casting mold 7 is installed on the die frame 6, the opening of the upper end of the liquid riser 8 is located in the vacuum cover 3 to match the casting mold 7, the vacuum cover 3 is connected with the lifting device 1, and the vacuum cov...

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Abstract

The invention provides a vacuum pressure suction casting device. A melting furnace is provided with a pot; the opening of the pot is covered by a sealing pot cover by which the internal space of the pot is enclosed; the pot is provided with an air inlet valve; the sealing pot cover is provided with a liquid lifting pipe; the lower opening of the liquid lifting pipe is inserted into the pot through the sealing pot cover; a sealing vacuum cover is arranged above the pot; the vacuum cover is internally provided with a die assembly frame which is provided with a casting pattern die; the upper opening of the liquid lifting pipe is arranged in the vacuum cover and matched with the casting pattern die; the vacuum cover is connected with a lifting device; the vacuum cover is provided with a vacuum pumping valve and a vacuum breaking valve which control the internal space of the vacuum cover. The vacuum pressure suction casting equipment of the invention is suitable for various castings with extremely complex and fine externality and internal structures, thin walls, extremely high integral dimension precision and finish, extremely high requirement to mechanical performances and air sealing performance, etc. The invention is also suitable for the castings which are easy to generate hole shrinkage and loosening when being cast.

Description

technical field [0001] The invention relates to a casting device, in particular to a vacuum pressure suction casting device. Background technique [0002] At present, there are mainly two kinds of devices in the field of vacuum casting, namely the vacuum suction casting device of the CLA method and the vacuum pressurized pouring device. Castings with strict mechanical requirements. The castings produced by this equipment are easy to loose, and it can cast very thin castings with large area, complex shape and structure, and there are few pores in the alloy. [0003] The vacuum pressurized pouring device is suitable for various castings with extremely complex shape, fine structure, thin wall, high overall dimensional accuracy and smoothness, high mechanical properties and airtight properties. It is also suitable for casting prone to shrinkage cavities and loose castings. However, it requires an appropriate amount of riser, and the utilization rate of alloy liquid is low. T...

Claims

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Application Information

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IPC IPC(8): B22D18/06
Inventor 冯强邵宏
Owner 无锡刚正精密吸铸有限公司
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