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Manufacturing technology for vacuum chamber

A vacuum chamber and manufacturing process technology, applied in the processing field, can solve the problems of large stud position offset, many leakage points, high rework rate, etc., and achieve the effect of improving the qualification rate and improving the accuracy

Active Publication Date: 2018-12-14
上海祖强能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] This application provides a manufacturing process of a vacuum chamber to solve the problems caused by the large offset of the punching position that cannot be repaired in the existing manufacturing process, the large number of leak points during the leak rate detection, and the large position offset of the mounting parts such as studs. The problem of high rework rate

Method used

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  • Manufacturing technology for vacuum chamber
  • Manufacturing technology for vacuum chamber
  • Manufacturing technology for vacuum chamber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1 is described by taking the heating chamber (HM) of the CIGS vacuum chamber as an example. HM selects high-pressure resistant stainless steel to manufacture the vacuum chamber. In this embodiment, HM selects national standard S30408 ​​stainless steel plate with a thickness of 25-30mm hot-rolled or cold-rolled. For the selection of other high-pressure resistant stainless steel and alloy materials used in the vacuum chamber, which are also suitable for HM, there is no limitation here.

[0043] Such as figure 1 As shown, it is a schematic diagram of the entire manufacturing process flow of the CIGS vacuum chamber provided in the embodiment of the present application. Embodiment 1 provides a complete manufacturing process of a CIGS vacuum chamber, the specific process is as follows:

[0044] (1) Cutting.

[0045] The selected material is cut and blanked according to the designed size to obtain a veneer weldment with a punched structure. This blanking method ...

Embodiment 2

[0089] Embodiment 2 of the present application is an improvement aimed at some of the above-mentioned 13 procedures. The improved process is as follows: Figure 4 shown.

[0090] S101: Cut and blank the selected material according to the designed size to obtain a plate welded part with a punched hole structure, wherein, when blanking the punched hole, a predetermined machining allowance is left on one side of the punched hole.

[0091] The specific process of blanking has been described in the part of the blanking process flow in Example 1, and will not be repeated here. When cutting the material, leave enough machining allowance on one side of the punching hole. Specifically, it means leaving a sufficient machining allowance of not less than 5mm on one side of the punching hole when cutting the material.

[0092] The basis for leaving a sufficient machining allowance of not less than 5mm on one side of the flange hole is: using tungsten inert gas shielded welding (TIG weldin...

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Abstract

The invention discloses a manufacturing technology for a vacuum chamber. The technology includes the steps that a selected material is cut according to design dimensions for blanking, a plate weldingpart with a punched hole structure is obtained, and the preset machining allowance is left for the single edge of a punched hole in the blanking process of the punched hole; the plate welding part issubjected to pre-welding, and cavity prefabricate parts are obtained; the cavity prefabricate parts are subjected to weld defect detection; if weld defects are detected, the defect positions of the cavity prefabricate parts are subjected to polishing repair welding until detection is qualified; the cavity prefabricate parts which are detected to be qualified are subjected to finish welding, and acavity product of the vacuum chamber can be obtained. According to the manufacturing technology for the vacuum chamber, the proper single-edge machining allowance is reserved for the punched hole in advance, so that machining precision of the center of the punched hole is guaranteed, weld detection is added, the weld defects can be discovered in advance, pretreatment is conducted, and the percentof pass in vacuum cavity manufacturing is increased.

Description

technical field [0001] The present application relates to the processing field, in particular to a vacuum chamber manufacturing process. Background technique [0002] When manufacturing the vacuum chamber, the flange processing method on the vacuum chamber is to process punching holes on the substrate according to the drawings, and then weld the flange corresponding to the aperture to the punching holes of the substrate. Whether the flange after welding is parallel to the datum or whether the center of the hole is offset is a difficult technical problem. The manufacturing process of the vacuum chamber in the existing technical scheme is: blanking - veneer welding - assembly welding - shaping - machining - sandblasting - polishing - cleaning - leak rate detection - dimension inspection - packaging. There is following defect in existing processing procedure: [0003] (1) After the assembly welding process is completed and shaped, it is often found that the center of the flan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 赵金霞
Owner 上海祖强能源有限公司