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Flexible air-bag type controlled atmosphere device

A flexible airbag and atmosphere technology, applied in coating, chemical/physical/physicochemical process, metal material coating process, etc., can solve the problems of high cost of vacuuming, long pumping time, etc., and achieve simple and light structure, pumping Gas equipment simple effect

Active Publication Date: 2012-07-04
北京煜鼎增材制造研究院股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, vacuum chambers and large vacuum chambers require high-power vacuum pumps for pumping. The pumping time is long and the cost of vacuuming is high.

Method used

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  • Flexible air-bag type controlled atmosphere device
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  • Flexible air-bag type controlled atmosphere device

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0038] The invention adopts the characteristics of flexible materials to produce flexible airbags. Then design a cavity that is rigid, capable of supporting, and has a certain strength. After the flexible airbag is sealed and connected with the cavity, the space formed by the sealing connection between the flexible airbag and the cavity is pumped using the principle of negative pressure. / Inflation, thereby providing a simple flexible airbag-type controlled atmosphere device for metal parts processing under very low pressure. The low-cost material selected for the flexible air bag belongs to plastic.

[0039] see figure 1 , Figure 1A ~ Figure 1F As shown, a flexible airbag-type controllable atmosphere device of the present invention is composed of a flexible airbag 1 and a cavity 2, the A opening end 11 of the flexible airbag 1 is sealed and connected w...

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Abstract

The invention discloses a flexible air bag type controlled atmosphere device which consists of a flexible air bag and a cavity body, and the flexible air bag and the cavity body are connected together in a sealing manner. A plurality of interfaces are respectively arranged on the flexible air bag and the cavity body, and the interfaces are used for connecting external equipment, thereby realizingthe process of vacuum pumping to an original cavity environment formed by connecting the flexible air bag and the cavity body. The thickness of the flexible air bag is 0.1mm-100mm, and the thickness of the cavity body is 0.5mm-2m. The size of the cavity body and the flexible air bag designed in the invention is not limited by materials and structures thereof, and the flexible air bag type controlled atmosphere device can implement the vacuum pumping of the original cavity environment and filling of controlled atmosphere into an operation environment by a simple pumping device. The flexible air bag type controlled atmosphere device is suitable for a variety of processing and experimental occasions which need the controlled atmosphere environments.

Description

technical field [0001] The present invention relates to a controllable atmosphere device, more particularly, refers to a flexible air bag type that can process metal parts under very pressure (such as vacuum environment, nitrogen protection atmosphere environment or argon protection atmosphere environment, etc.) Controlled atmosphere device. Background technique [0002] Metal processing, smelting, heat treatment, welding, thermal spraying, plasma spraying or laser processing, etc., all need to be carried out in a controlled atmosphere environment under very pressure (such as vacuum environment, nitrogen protection atmosphere environment or argon protection atmosphere environment, etc.) . The traditional method needs a vacuum chamber, and a vacuum pump group for exhausting oxygen in the vacuum chamber. In the process of metal processing, it is necessary to evacuate the vacuum chamber first, and then fill it with specified gas to form the required controllable atmosphere en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/00C21D1/74C23C4/00
Inventor 王华明张凌云张述泉李安李鹏汤海波方艳丽田象军
Owner 北京煜鼎增材制造研究院股份有限公司
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