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Sheath assembly sealing device and method, sheath forming device and processing method

A technology of sealing device and molding equipment, applied in the field of material processing, can solve the problems of poor sealing effect of tooling and mold, affecting the effect of diffusion connection, oxidation of parts surface, etc. Effect

Active Publication Date: 2020-04-21
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is that existing equipment and diffusion bonding methods have limited equipment, surface oxidation of parts and tooling mold sealing in the diffusion bonding of ultra-thin foils, especially multi-layer and ultra-multi-layer titanium alloy foils. Problems such as poor effect affect the effect of diffusion connection

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  • Sheath assembly sealing device and method, sheath forming device and processing method
  • Sheath assembly sealing device and method, sheath forming device and processing method
  • Sheath assembly sealing device and method, sheath forming device and processing method

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Embodiment Construction

[0039] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical The orientations or positional relationships indicated by "straight", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description , rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should ...

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Abstract

The invention discloses a sheath assembly sealing device and method, a sheath forming device and a processing method. The sheath assembly sealing device comprises an inner layer sheath and an outer layer sheath, an inner layer sealing cavity for sealing a to-be-diffused part is arranged in the inner layer sheath, and an outer layer sealing cavity covering the outer portion of the inner layer sealing cavity is arranged in the outer sheath; a vacuum channel for vacuumizing is formed in the inner layer sealing cavity, and an air inlet channel for introducing inert gas is formed in the outer layersealing cavity; and the inner layer sealing cavity and the outer layer sealing cavity are independent from each other, so that tight fit of a connection interface of the to-be-diffused part is promoted when the to-be-diffused part is under the action of vacuum and the pressure of the inert gas, and then a diffusion connection joint for sheath assembly is formed. According to the scheme, good sealing and diffusion connection effects can be achieved.

Description

technical field [0001] The invention relates to the technical field of material processing, in particular to a sealing device and a sealing method for a sheath assembly blank, a sheath forming device and a processing method. Background technique [0002] Generally speaking, diffusion bonding means that the surfaces of materials in contact with each other approach each other under the action of temperature and pressure, and plastic deformation occurs locally. Mutual diffusion occurs between the atoms on the surface of the material, and a diffusion layer is formed at the interface contact, so as to realize reliable solid-phase connection between materials. In the diffusion process, the diffusion pressure, the diffusion environment, the surface quality of the diffusion interface, the diffusion temperature, the holding time, and even the equipment are the necessary conditions to achieve the purpose of material diffusion connection. [0003] At present, the methods applied to di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/02B23K20/14B23K20/26
CPCB23K20/026B23K20/14B23K20/26
Inventor 雷海龙李志强陈福龙廖金华梁田
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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