CN110625322B - Method for quickly positioning and accurately repairing internal defect part of complex casting - Google Patents
Method for quickly positioning and accurately repairing internal defect part of complex casting Download PDFInfo
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- CN110625322B CN110625322B CN201910783459.6A CN201910783459A CN110625322B CN 110625322 B CN110625322 B CN 110625322B CN 201910783459 A CN201910783459 A CN 201910783459A CN 110625322 B CN110625322 B CN 110625322B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2223/00—Investigating materials by wave or particle radiation
- G01N2223/40—Imaging
- G01N2223/415—Imaging radiographic film
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Abstract
The invention belongs to the technical field of casting, and particularly relates to a method for quickly positioning and accurately repairing an internal defect part of a complex casting, which comprises the steps of marking the corresponding position of the internal defect of the casting on the outer surface by a positioning mark on a negative and a negative placing mode; when the internal defect is judged to be positioned close to the inner surface in the wall thickness direction, fixing the magnet at the mark position of the outer surface, enabling the other magnet to be close to the position corresponding to the inner surface, and enabling the magnet to be adsorbed and fixed on the inner surface of the casting through the magnetic force effect so as to determine the relative position of the internal defect on the inner surface; after the internal defect is completely eliminated, the position is accurately repaired. The invention aims at the difficulty in positioning the internal defects of the casting with the complex structure, can quickly and accurately mark the defect positions on the internal surface of the casting by utilizing the magnetic force of the magnet, can reduce the fault removing depth from the external surface, reduces the repairing workload, and avoids the deformation of the casting caused by large repairing area and depth.
Description
Technical Field
The invention belongs to the technical field of casting, and particularly relates to a method for quickly positioning and accurately repairing a defect part in a complex casting.
Background
Along with the rapid development of weaponry, the aluminum alloy part product structure is more and more complicated, and the internal quality requirement is very strict, so the once qualified difficulty is higher in the casting production process, and the general design requirement allows the internal defective parts to be positioned, debugged and repaired. In the scientific research and production process, X-ray inspection is carried out on the casting, the defect which exceeds the standard exists inside the casting, and when the casting can be repaired in a repair welding mode, the defect position needs to be positioned, polished and troubleshooting are carried out, and repair welding treatment is carried out after the defect position is confirmed and removed. The work requires that X-ray detection personnel can quickly and accurately judge the defect position according to the negative and mark the corresponding position, so that troubleshooting and repairing are facilitated. The defect position can be accurately marked on the outer surface by applying a conventional method. However, when a part product with a complex casting structure and a large size is positioned by a conventional method, because available references are few, the positioning can be performed by repeatedly comparing the internal and external structural features of the casting, so that the scientific research and production cycle is delayed, the problem that the product cannot be repaired due to the deviation of the calibration position, and the product is scrapped, and the economic loss is caused.
Disclosure of Invention
Technical problem to be solved
The invention provides a method for quickly positioning and accurately repairing a defect part in a complex casting, which aims to solve the technical problem that the defect part cannot be accurately positioned by a conventional method when an overproof defect exists in a large complex-structure casting.
(II) technical scheme
In order to solve the technical problems, the invention provides a method for quickly positioning and accurately repairing a defect part in a complex casting, which comprises the following steps:
s1, carrying out X-ray detection on the casting with the complex structure, and judging whether the internal structure part of the casting has an overproof defect or not through a negative;
s2, if the defects exceed the standard, marking the corresponding positions of the internal defects of the casting on the outer surface through the positioning marks on the negative and the negative placing mode;
s3, judging the position of the casting defect in the wall thickness direction by combining the casting process scheme;
s4, fixing a first piece of magnet at the mark position of the outer surface and a second piece of magnet near the corresponding position on the inner surface for the internal defect needing troubleshooting from the inner profile, and fixing the second piece of magnet on the inner surface of the casting in an adsorption manner under the magnetic action of the magnets so as to determine the relative position of the defect on the inner surface;
and S5, after the internal defects are completely eliminated, accurately repairing the position.
Further, in step S3, for the cast product in which the outer profile is strongly chilled and the inner profile is weakly chilled, the internal defect exists at a position close to the inner profile in the wall thickness direction.
Further, in step S4, the second piece of magnet is manually brought close to the vicinity of the corresponding position on the inner surface.
(III) advantageous effects
The invention provides a method for quickly positioning and accurately repairing the internal defect part of a complex casting, which comprises the steps of marking the corresponding position of the internal defect of the casting on the outer surface by a positioning mark on a negative and a negative placing mode; when the internal defect is judged to be positioned close to the inner surface in the wall thickness direction, one magnet is fixed at the mark position of the outer surface, the other magnet is close to the position close to the corresponding position of the inner surface, the magnet is fixed on the inner surface of the casting in an adsorption mode under the magnetic action of the magnet, and then the relative position of the internal defect on the inner surface is determined; after the internal defect is completely eliminated, the position is accurately repaired.
The invention aims at the difficulty in positioning the internal defects of the casting with the complex structure, and can quickly and accurately mark the defect positions on the internal surface of the casting by utilizing the magnetic force of the magnet, thereby not only reducing the fault removing depth from the external surface and reducing the repairing workload, but also avoiding the deformation of the casting caused by large repairing area and depth.
Detailed Description
In order to make the objects, contents and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be given in conjunction with examples.
The embodiment provides a method for quickly positioning and accurately repairing a defect part in a complex casting, which comprises the following specific steps:
s1, carrying out X-ray detection on the large-scale complex-structure casting, and judging whether the internal structure part of the casting has an overproof defect or not through a negative;
s2, if the defects exceed the standard, marking the corresponding positions of the internal defects of the casting on the outer surface through the positioning marks on the negative and the negative placing mode;
s3, judging the position of the casting defect possibly existing in the wall thickness direction by combining the casting process scheme; in principle, the outer profile is a position of a strong chilling material, the inner profile is a position of a weak chilling material, and internal defects are approximately present at a position close to the inner profile in the wall thickness direction;
s4, fixing a first magnet at the mark position of the outer surface of the inner casting, enabling a second magnet to approach to the vicinity of the corresponding position by a manual mode, and enabling the second magnet to be adsorbed and fixed on the inner surface of the casting under the magnetic action of the magnets, so that the relative position of the defect on the inner surface can be accurately determined;
and S5, after the internal defects are completely eliminated, accurately repairing the position.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A method for quickly positioning and accurately repairing a defect part in a complex casting is characterized by comprising the following steps:
s1, carrying out X-ray detection on the casting with the complex structure, and judging whether the internal structure part of the casting has an overproof defect or not through a negative;
s2, if the defects exceed the standard, marking the corresponding positions of the internal defects of the casting on the outer surface through the positioning marks on the negative and the negative placing mode;
s3, judging the position of the casting defect in the wall thickness direction by combining the casting process scheme;
s4, fixing a first piece of magnet at the mark position of the outer surface and a second piece of magnet near the corresponding position on the inner surface for the internal defect needing troubleshooting from the inner profile, and fixing the second piece of magnet on the inner surface of the casting in an adsorption manner under the magnetic action of the magnets so as to determine the relative position of the defect on the inner surface;
and S5, after the internal defects are completely eliminated, accurately repairing the position.
2. The method of claim 1, wherein in step S3, for the casting having the outer profile of a strongly chilled material and the inner profile of a weakly chilled material, the internal defects are present near the inner profile in a wall thickness direction.
3. The method of claim 1, wherein in step S4, the second piece of magnet is manually brought near the corresponding position on the inner surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783459.6A CN110625322B (en) | 2019-08-23 | 2019-08-23 | Method for quickly positioning and accurately repairing internal defect part of complex casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910783459.6A CN110625322B (en) | 2019-08-23 | 2019-08-23 | Method for quickly positioning and accurately repairing internal defect part of complex casting |
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| CN110625322A CN110625322A (en) | 2019-12-31 |
| CN110625322B true CN110625322B (en) | 2020-07-28 |
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| CN201910783459.6A Active CN110625322B (en) | 2019-08-23 | 2019-08-23 | Method for quickly positioning and accurately repairing internal defect part of complex casting |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141819A (en) * | 2019-09-20 | 2020-05-12 | 盐城新耀模具有限公司 | Method for detecting damage to inner wall of mold body |
| CN112935701A (en) * | 2021-03-10 | 2021-06-11 | 西安理工大学 | Defect excavating and repairing method for medium-carbon quenched and tempered steel welded structural part |
Citations (8)
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|---|---|---|---|---|
| US2574681A (en) * | 1945-08-17 | 1951-11-13 | Walter H Zinn | Material and method for radiography |
| GB2023380A (en) * | 1978-06-14 | 1979-12-28 | Redmayne & Sons Ltd S | Location of instruments in pipes, particularly for pipe radiography |
| KR101223257B1 (en) * | 2012-10-17 | 2013-01-17 | 나우 주식회사 | Magnetic chuck for attaching film of radiation transmission inspection equipment |
| CN103439409A (en) * | 2013-09-03 | 2013-12-11 | 宁夏共享集团有限责任公司 | Positioning method for groove weld defects of large-wall-thickness pipe fitting |
| CN104493422A (en) * | 2014-12-29 | 2015-04-08 | 北京钢研高纳科技股份有限公司 | Defect repair method of high-temperature alloy casting |
| CN105414878A (en) * | 2015-12-15 | 2016-03-23 | 共享铸钢有限公司 | High-heat-resistance alloy steel casting defect repair method |
| CN106392460A (en) * | 2016-11-04 | 2017-02-15 | 上海航天精密机械研究所 | Defect repairing method for magnesium/aluminum alloy casting |
| CN108161331A (en) * | 2017-12-27 | 2018-06-15 | 安徽应流航源动力科技有限公司 | A kind of welding Rework Technics method of ZG1Cr11Ni2WMoV large sizes casing casting |
-
2019
- 2019-08-23 CN CN201910783459.6A patent/CN110625322B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2574681A (en) * | 1945-08-17 | 1951-11-13 | Walter H Zinn | Material and method for radiography |
| GB2023380A (en) * | 1978-06-14 | 1979-12-28 | Redmayne & Sons Ltd S | Location of instruments in pipes, particularly for pipe radiography |
| KR101223257B1 (en) * | 2012-10-17 | 2013-01-17 | 나우 주식회사 | Magnetic chuck for attaching film of radiation transmission inspection equipment |
| CN103439409A (en) * | 2013-09-03 | 2013-12-11 | 宁夏共享集团有限责任公司 | Positioning method for groove weld defects of large-wall-thickness pipe fitting |
| CN104493422A (en) * | 2014-12-29 | 2015-04-08 | 北京钢研高纳科技股份有限公司 | Defect repair method of high-temperature alloy casting |
| CN105414878A (en) * | 2015-12-15 | 2016-03-23 | 共享铸钢有限公司 | High-heat-resistance alloy steel casting defect repair method |
| CN106392460A (en) * | 2016-11-04 | 2017-02-15 | 上海航天精密机械研究所 | Defect repairing method for magnesium/aluminum alloy casting |
| CN108161331A (en) * | 2017-12-27 | 2018-06-15 | 安徽应流航源动力科技有限公司 | A kind of welding Rework Technics method of ZG1Cr11Ni2WMoV large sizes casing casting |
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| CN110625322A (en) | 2019-12-31 |
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Inventor after: Cheng Yunchao Inventor after: Li Shaonan Inventor after: Li Yong Inventor before: Cheng Yunchao Inventor before: Li Shaonan |