CN107199389A - One kind realizes Mg alloy castings oil circuit repair method by Water-soluble ceramic - Google Patents
One kind realizes Mg alloy castings oil circuit repair method by Water-soluble ceramic Download PDFInfo
- Publication number
- CN107199389A CN107199389A CN201710436129.0A CN201710436129A CN107199389A CN 107199389 A CN107199389 A CN 107199389A CN 201710436129 A CN201710436129 A CN 201710436129A CN 107199389 A CN107199389 A CN 107199389A
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- CN
- China
- Prior art keywords
- water
- oil circuit
- casting
- soluble ceramic
- welding
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/035—Seam welding; Backing means; Inserts with backing means disposed under the seam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
Abstract
The present invention relates to a kind of repair method that Mg alloy castings oil circuit is realized by Water-soluble ceramic, by using water-soluble material as repair welding backing plate, after the completion of repair welding, casting is soaked in water, Water-soluble ceramic is dissolved in water, produced defeated and dispersed, it can be gone out with water, and not damage casting.The present invention makes it possible the defect of reparation Mg alloy castings oil circuit part, reaches the purpose for saving casting.
Description
Technical field
The present invention relates to a kind of repair method, especially a kind of benefit that Mg alloy castings oil circuit is realized by Water-soluble ceramic
Soldering method.
Background technology
When Mg alloy castings defect occur in process of production, it is sometimes desirable to which defect is removed, then using manual tungsten
The mode of electrode argon arc welding is repaired to defect, reaches the purpose for saving casting.During repair welding, first fault location to be added
Work is commonly called as groove into the shape for being appropriate for repair welding, the groove of such as circular arc.To prevent from collapsing at weldering, it is necessary to below groove
Backing plate is placed, and backing plate is usually copper coin or refractory brick, backing plate is removed after the completion of welding.When defect appears in tubulose oil circuit part
When, because oil circuit is closed cavity, backing plate during repair welding should be placed in oil circuit, and postwelding backing plate will be mothballed in oil circuit intracavitary,
For aluminium alloy castings, copper coin can be used as backing plate, backing plate is removed using the method for corrosion, and because magnesium alloy is active
Chemical property, it is impossible to backing plate is removed by the method for corrosion, the problem that pad is difficult to take out is faced, so as to cause to carry out
Repair welding, that is, mean scrapping for casting, causes substantial amounts of loss due to spoiled work.
The content of the invention
It is an object of the invention to provide a kind of repair method that Mg alloy castings oil circuit is realized by Water-soluble ceramic, to repair
Multiple magnesium alloy tubulose oil passage cast part, complies with the standard of drawing or relevant art specification, it is to avoid loss from spoilage.
The present invention concrete technical scheme be：The described repair welding side that Mg alloy castings oil circuit is realized by Water-soluble ceramic
Method comprises the following steps：
(1) processing and fabricating Water-soluble ceramic is padded, and makes it consistent with the size and profile of fault location oil circuit；
(2) oil circuit fault location is cleared up, until defect is removed completely clean；
(3) angle at fault location finished edge, groove is 45 °~50 °；
(4) the Water-soluble ceramic pad after processing is put into place to be welded, Water-soluble ceramic is fitted with oil circuit wall；
(5) position of casting is adjusted, it is in level to make at weldering, is easy to repair welding；
(6) welding wire is cleared up, surface anti-oxidation coat is removed, makes welding wire surface light；
(7) welding parameter, 180~260A of welding current, 15~20L/Min of argon flow amount are set；
(8) postwelding is cleared up, cleaning oil circuit outer surface, complies with casting appearance and size；
(9) casting is soaked in 24h in water, oil circuit position is rinsed using giant afterwards, it is ensured that ceramic substrate is complete
Go out entirely；
(10) quality testing, X-ray examination and fluoroscopy are carried out to welding zone.
The material of described welding wire is identical with the material of casting.
After described (2) step, judge whether defect removes completely by X-ray examination.
The present invention uses water-soluble material as repair welding backing plate, and after the completion of repair welding, casting is soaked in water, water-soluble
Ceramics are dissolved in water, and generation is defeated and dispersed, can be gone out with water, and do not damage casting.Water-soluble ceramic high temperature resistant, does not get angry, and possesses argon
Properties needed for arc-welding backing plate.By the present invention, make it possible the defect of reparation Mg alloy castings oil circuit part, reach
Save the purpose of casting.
Embodiment
The repair method for realizing Mg alloy castings oil circuit by Water-soluble ceramic comprises the following steps：
(1) processing and fabricating Water-soluble ceramic is padded, and makes it consistent with the size and profile of fault location oil circuit；
(2) oil circuit fault location is cleared up, until defect is removed completely clean；
(3) angle at fault location finished edge, groove is 45 °~50 °；
(4) the Water-soluble ceramic pad after processing is put into place to be welded, Water-soluble ceramic is fitted with oil circuit wall；
(5) position of casting is adjusted, it is in level to make at weldering, is easy to repair welding；
(6) welding wire is cleared up, surface anti-oxidation coat is removed, makes welding wire surface light；
(7) welding parameter, 180~260A of welding current, 15~20L/Min of argon flow amount are set；
(8) postwelding is cleared up, cleaning oil circuit outer surface, complies with casting appearance and size；
(9) casting is soaked in 24h in water, oil circuit position is rinsed using giant afterwards, it is ensured that ceramic substrate is complete
Go out entirely；
(10) quality testing, X-ray examination and fluoroscopy are carried out to welding zone.
The material of described welding wire is identical with the material of casting.
After described (2) step, judge whether defect removes completely by X-ray examination.
Embodiment 1
Certain Helicopter Transmission System main frame casket oil circuit, material trademark is to generate gas hole defect after WE43A, casting, fault location
The a diameter of Φ 12mm of oil circuit, length is 100mm.Need to carry out repair welding to it, to reach the purpose of reparation.It was specifically implemented
Journey is as follows：
(1) Water-soluble ceramic is processed, makes it consistent with the shape and size of fault location oil circuit, i.e., Water-soluble ceramic is a diameter of Φ
12mm, length is 100mm；
(2) oil circuit fault location is cleared up, until defect is removed completely clean；
(3) angle at fault location finished edge, groove is 50 °；
(4) ceramic substrate after processing is put into place to be welded, ceramic substrate is fitted with oil circuit wall；
(5) position of casting is adjusted, it is in level to make at weldering, is easy to repair welding；
(6) welding wire is cleared up, the material of welding wire is identical with the material of casting, removes surface anti-oxidation coat, make welding wire surface light；
(7) welding parameter, welding current 220A, argon flow amount 17L/Min are set；
(8) postwelding is cleared up, cleaning oil circuit outer surface, complies with casting appearance and size；
(9) casting is soaked in 24h in water, oil circuit position is rinsed using giant afterwards, it is ensured that ceramic substrate is complete
Go out entirely；
(10) quality testing, X-ray examination and fluoroscopy are carried out to welding zone.
Through quality testing, acceptance condition is met at weldering, repair welding is qualified.
Claims (3)
1. a kind of repair method that Mg alloy castings oil circuit is realized by Water-soluble ceramic, it is characterised in that described method bag
Include following steps：
1) processing and fabricating Water-soluble ceramic is padded, and makes it consistent with the size and profile of fault location oil circuit；
2) oil circuit fault location is cleared up, until defect is removed completely clean；
3) angle at fault location finished edge, groove is 45 °~50 °；
4) the Water-soluble ceramic pad after processing is put into place to be welded, Water-soluble ceramic is fitted with oil circuit wall；
5) position of casting is adjusted, it is in level to make at weldering, is easy to repair welding；
6) welding wire is cleared up, surface anti-oxidation coat is removed, makes welding wire surface light；
7) welding parameter, 180~260A of welding current, 15~20L/Min of argon flow amount are set；
8) postwelding is cleared up, cleaning oil circuit outer surface, complies with casting appearance and size；
9) casting is soaked in 24h in water, oil circuit position is rinsed using giant afterwards, it is ensured that ceramic substrate is complete
Go out；
10) quality testing, X-ray examination and fluoroscopy are carried out to welding zone.
2. a kind of repair method that Mg alloy castings oil circuit is realized by Water-soluble ceramic as claimed in claim 1, its feature
It is, the material of described welding wire is identical with the material of casting.
3. a kind of repair method that Mg alloy castings oil circuit is realized by Water-soluble ceramic as claimed in claim 1, its feature
It is, described 2) after step, judges whether defect removes completely by X-ray examination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436129.0A CN107199389A (en) | 2017-06-12 | 2017-06-12 | One kind realizes Mg alloy castings oil circuit repair method by Water-soluble ceramic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436129.0A CN107199389A (en) | 2017-06-12 | 2017-06-12 | One kind realizes Mg alloy castings oil circuit repair method by Water-soluble ceramic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107199389A true CN107199389A (en) | 2017-09-26 |
Family
ID=59907455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710436129.0A Pending CN107199389A (en) | 2017-06-12 | 2017-06-12 | One kind realizes Mg alloy castings oil circuit repair method by Water-soluble ceramic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107199389A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101601A (en) * | 1985-05-16 | 1987-02-18 | 三菱重工业株式会社 | Manufacturing has the method for the structural member in narrow gap |
| US4682724A (en) * | 1986-03-12 | 1987-07-28 | Helmut Hahn | Welding apparatus |
| CN102786295A (en) * | 2012-08-06 | 2012-11-21 | 江苏大学 | Water-soluble ceramic core and preparation method thereof |
| CN103894549A (en) * | 2014-04-11 | 2014-07-02 | 铜陵佳茂新材料科技有限责任公司 | Integral precision casting method for metal slot drum blank of automatic winder |
| CN105537735A (en) * | 2016-03-08 | 2016-05-04 | 哈尔滨东安发动机（集团）有限公司 | Repair welding method for magnesium alloy casting oil way |
| CN105693254A (en) * | 2016-02-03 | 2016-06-22 | 中国航空工业集团公司北京航空材料研究院 | Water-soluble ceramic core material and preparation method thereof |
-
2017
- 2017-06-12 CN CN201710436129.0A patent/CN107199389A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101601A (en) * | 1985-05-16 | 1987-02-18 | 三菱重工业株式会社 | Manufacturing has the method for the structural member in narrow gap |
| US4682724A (en) * | 1986-03-12 | 1987-07-28 | Helmut Hahn | Welding apparatus |
| CN102786295A (en) * | 2012-08-06 | 2012-11-21 | 江苏大学 | Water-soluble ceramic core and preparation method thereof |
| CN103894549A (en) * | 2014-04-11 | 2014-07-02 | 铜陵佳茂新材料科技有限责任公司 | Integral precision casting method for metal slot drum blank of automatic winder |
| CN105693254A (en) * | 2016-02-03 | 2016-06-22 | 中国航空工业集团公司北京航空材料研究院 | Water-soluble ceramic core material and preparation method thereof |
| CN105537735A (en) * | 2016-03-08 | 2016-05-04 | 哈尔滨东安发动机（集团）有限公司 | Repair welding method for magnesium alloy casting oil way |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170926 |
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