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A vacuum degassing device

A technology of degassing equipment and vacuum pumping device, which is applied in the field of metallurgy and metal material processing, and can solve the problems of high price, increased cost, and large consumption of rotors

Active Publication Date: 2020-10-23
佛山市三水凤铝铝业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Rotor degassing is commonly used now, which consumes a lot of rotors and requires the use of multiple devices, which increases costs and increases the degree of secondary pollution.
There are some vacuum degassing equipment in foreign countries, but the equipment is complicated and the price is high

Method used

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  • A vacuum degassing device
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Embodiment Construction

[0022] A number of non-limiting embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The embodiments designed in this description are only used to explain the principle of the present invention and not limit the protection scope of the present invention.

[0023] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate in a specific orientation, and therefor...

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Abstract

The invention discloses vacuum degassing equipment comprising a degassing cavity, a feed inlet, a vacuum air extractor and a discharge outlet. The degassing cavity comprises a ceramic filtration plate, air bricks, a thermal insulating wall and a flow hole plug. The feed inlet is formed in the side wall on the upper portion of the degassing cavity. The discharge outlet is formed in the side wall onthe lower portion of the degassing cavity. The discharge outlet and the feed inlet are not in the same side. An air extraction opening of the vacuum air extractor is inserted into the degassing cavity from above the degassing cavity. The air bricks are arranged at the bottom of the degassing cavity. A step projection is further arranged in the degassing cavity. A through hole is formed in the middle. The flow hole plug is arranged in the through hole of the step projection. Degassing and deslagging efficiency of the vacuum degassing equipment is high, a foundation is laid for solving the problem of secondary pollution, comprehensive deslagging efficiency is also better than that of a traditional method, and quality of a cast ingot is good. Various devices are modularized, the number of the devices is reduced, a launder is shortened, and assembly and use are convenient. Meanwhile inert gas can be recycled, and investment and cost are reduced.

Description

technical field [0001] The invention relates to the technical field of metallurgy and metal material processing, in particular to a vacuum degassing device. Background technique [0002] Many auto parts, such as automobile engine casings and automobile engine rotors, are produced and processed by aluminum hydraulic casting production methods. As the most commonly used casting die-casting material, aluminum liquid mainly contains three gases: hydrogen, oxygen and nitrogen, and the hydrogen content accounts for about 85%. Hydrogen dissolves and precipitates in aluminum and its alloys, which will cause pinholes, Pores, etc., eventually lead to a great reduction in the mechanical properties and internal quality of the casting. Therefore, filtering and degassing the molten aluminum is particularly important in the field of die-casting of aluminum parts. Rotor degassing is commonly used now, which consumes a lot of rotors and requires the use of multiple devices, which increases...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B9/04C22B9/05C22B21/06B22D1/00
Inventor 刘勇纯周思根葛杰陈慧
Owner 佛山市三水凤铝铝业有限公司
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