CN106475734B - A kind of repair welding after tapped blind hole depth is overproof - Google Patents
A kind of repair welding after tapped blind hole depth is overproof Download PDFInfo
- Publication number
- CN106475734B CN106475734B CN201611102281.7A CN201611102281A CN106475734B CN 106475734 B CN106475734 B CN 106475734B CN 201611102281 A CN201611102281 A CN 201611102281A CN 106475734 B CN106475734 B CN 106475734B
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- Prior art keywords
- cone
- blind hole
- tapped blind
- bottom outlet
- repair welding
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Classifications
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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
Abstract
The present invention relates to a kind of repair welding of tapped blind hole depth after overproof, belong to technical field of transformer production.Technical solution is：For pushing up saturating, raised or excessively thin tapped blind hole, in the back side pointed cone of workpiece（4）Saturating top, protrusion or excessively thin position are tapped, the dynamics of percussion makes the position form conical groove, and the cone of conical groove is more than the cone bottom of bottom outlet cone-shaped end；Copper rod or asbestos cord are filled inside tapped blind hole, by repair welding at conical groove, repair welding thickness is slightly above back of work surface, then polishes.The positive effect of the present invention：Reparation after realization is too deep to the tapped blind hole bottom outlet of parts makes part restore original reliable seal thickness simultaneously, and part quick-recovery can use soon, has reduced or remitted the material cost and the cost of repairs of flange replacement, particularly suitable transformer production technique.
Description
Technical field
The present invention relates to a kind of repair welding of tapped blind hole depth after overproof, belong to technical field of transformer production.
Background technology
It is used in oil tank of transformer manufacture and is much threaded the workpiece such as flange, the bottom plate of blind hole, tapped blind hole form is shown in
Attached drawing 1.In process, bottom outlet is deep-controlled sometimes there is deviation, if bottom outlet is too deep, it may appear that bottom outlet bottom steel plate mistake
Thin, bottom outlet bottom occur bulge, bottom outlet bottom top thoroughly and other issues, be specifically shown in attached drawing 2 signal.Bottom outlet is too deep to cause screw thread blind
Hole bottom oil-tightness（Or air-tightness）Reliability reduces, or directly contributes oil（Gas）Leakage, therefore there is the too deep problem of bottom outlet
Flange（Or other parts）It can not use.The repair method of the too deep prior art of bottom outlet is weighed after screw hole whole repair welding
New perforation processing threaded hole；Screw hole quantity if necessary to whole repair weldings is more, causes to deform to prevent from largely welding, need to be by method
It is blue（Or the parts such as bottom plate）Gas cutting or gas explosion, go it is lower after more renew part, weld again, when repairing has a large amount of welding and postwelding whole
Shape workload, and will appear the post welding distortion risk that can not be repaired, and it is very time-consuming.Currently, in transformer production, carry
The number of parts such as tapped blind hole flange, bottom plate are more, and when processing has such quality problems and occurs, and prior art repair method needs
The a large amount of artificial, material costs of waste, and will appear the post welding distortion risk that can not be repaired, it is unable to meet production requirement.
Invention content
It is easy to operate the object of the present invention is to provide a kind of repair welding of tapped blind hole depth after overproof, ensure bottom outlet
Bottom oil-tightness（Or air-tightness）, when repairing, that is, time saving and energy saving, while material cost is saved, it solves above-mentioned existing for background technology
Problem.
The technical scheme is that：
Repair welding after a kind of tapped blind hole depth is overproof, including following processing step：
Workpiece front processes tapped blind hole, if the bottom outlet of tapped blind hole is too deep, analyzes the too deep situation of bottom outlet, is divided into three
Kind：A, top is saturating, and the hole depth of tapped blind hole is excessive, and the cone of bottom outlet cone-shaped end penetrates back of work；B, protrusion, tapped blind hole
Hole depth is excessive, and back of work surface is jacked up bulge by the cone of bottom outlet cone-shaped end, but not yet penetrates workpiece；C, excessively thin, screw thread
The hole depth of blind hole is although excessive, but bottom outlet cone-shaped end not yet pushes up saturating or protrusion, and back of work surface does not change；
The pointed cone that an end is cone is made, as specific purpose tool, the taper of pointed cone is less than bottom outlet cone-shaped end
Taper；
For pushing up saturating, raised or excessively thin tapped blind hole, at the back side of workpiece, pointed cone taps saturating top, protrusion or excessively thin
The dynamics at position, percussion makes the position form conical groove, and the cone of conical groove is more than the cone bottom of bottom outlet cone-shaped end；
Copper rod or asbestos cord are filled inside tapped blind hole, tapped blind hole internal thread is protected, and prevent through welding aftershaping bad, together
When prevent internal thread impaired；By repair welding at conical groove, repair welding thickness is slightly above back of work surface, then polishes；
With fluorescent penetrant or pressurized seal test method, weld sealing is examined, tapped blind hole bottom outlet is completed after qualified
It repairs, ensures oil-tightness（Air-tightness）, part is made to meet requirement.
The positive effect of the present invention：Reparation after realization is too deep to the tapped blind hole bottom outlet of parts makes part restore former
Simultaneously, part quick-recovery can use the reliable seal thickness having soon, reduce or remit the material cost and the cost of repairs of flange replacement,
It is particularly suitable for transformer production technique.
Description of the drawings
Fig. 1 is normal condition tapped blind hole form schematic diagram；
Fig. 2 is the excessively thin schematic diagram of bottom outlet of tapped blind hole；
Fig. 3 is the bottom outlet bump diagrams of tapped blind hole；
Fig. 4 is the saturating schematic diagram in bottom outlet top of tapped blind hole；
Fig. 5 embodiment of the present invention pointed cone carries out percussion schematic diagram in bottom outlet cone-shaped end position high spot；
Fig. 6 is that the embodiment of the present invention forms conical groove schematic diagram；
Fig. 7 is that the embodiment of the present invention fills copper rod or asbestos cord and welding position schematic diagram inside tapped blind hole；
In figure：Tapped blind hole 1, bottom outlet cone-shaped end 2, workpiece 3, pointed cone 4, excessively thin 5, protrusion 6, top be saturating 7, conical groove
8, repair welding 9, copper rod or asbestos cord 10.
Specific implementation mode
Below in conjunction with the accompanying drawings, by embodiment, the present invention will be further described.
Repair welding after a kind of tapped blind hole depth is overproof, including following processing step：
3 front processing tapped blind hole of workpiece analyzes the too deep situation of bottom outlet, is divided into three if the bottom outlet of tapped blind hole is too deep
Kind：A, saturating 7 are pushed up, the hole depth of tapped blind hole 1 is excessive, and the cone of bottom outlet cone-shaped end 2 penetrates 3 back side of workpiece；B, protrusion 6, screw thread
The hole depth of blind hole is excessive, and back of work surface is jacked up bulge by the cone of bottom outlet cone-shaped end, but not yet penetrates workpiece；C, excessively thin
5, the hole depth of tapped blind hole is although excessive, but bottom outlet cone-shaped end not yet pushes up saturating or protrusion, and back of work surface does not change；
The pointed cone 4 that an end is cone is made, as specific purpose tool, the taper of pointed cone is less than bottom outlet cone-shaped end
Taper；
For pushing up saturating, raised or excessively thin tapped blind hole, at the back side of workpiece, pointed cone 4 taps saturating top, protrusion or excessively thin
Position, the dynamics of percussion makes the position form conical groove, and the cone of conical groove is more than the cone of bottom outlet cone-shaped end
Bottom；Copper rod or asbestos cord 10 are filled inside tapped blind hole, tapped blind hole internal thread is protected, and prevent through welding aftershaping not
It is good, while preventing internal thread impaired；By repair welding 9 at conical groove 8, repair welding thickness is slightly above back of work surface, then grinds
It is flat；
With fluorescent penetrant or pressurized seal test method, weld sealing is examined, tapped blind hole bottom outlet is completed after qualified
It repairs, ensures oil-tightness（Air-tightness）, part is made to meet requirement.
The present embodiment is the tapped blind hole of protrusion, and the position of protrusion, the dynamics of percussion are tapped in the back side pointed cone 4 of workpiece
The position is set to form conical groove 8, the cone of conical groove is more than the cone bottom 2 of bottom outlet cone-shaped end；In tapped blind hole 1
Fill copper rod or asbestos cord 10 in portion；By repair welding 9 at conical groove, repair welding thickness is slightly above 3 backside surface of workpiece, then grinds
It is flat.
Claims (1)
- The repair welding after 1. a kind of tapped blind hole depth is overproof, it is characterised in that include following processing step：Workpiece（3）Processing tapped blind hole in front analyzes the too deep situation of bottom outlet, is divided into three kinds if the bottom outlet of tapped blind hole is too deep： A, top is saturating（7）, tapped blind hole（1）Hole depth it is excessive, bottom outlet cone-shaped end（2）Cone penetrate workpiece（3）The back side；B, protrusion （6）, the hole depth of tapped blind hole is excessive, and back of work surface is jacked up bulge by the cone of bottom outlet cone-shaped end, but not yet penetrates work Part；C, excessively thin（5）, the hole depth of tapped blind hole is although excessive, but bottom outlet cone-shaped end not yet pushes up thoroughly or raised, back of work surface Do not change；Make the pointed cone that an end is cone（4）, as specific purpose tool, the taper of pointed cone is less than the cone of bottom outlet cone-shaped end Degree；For pushing up saturating, raised or excessively thin tapped blind hole, in the back side pointed cone of workpiece（4）It is saturating, raised or excessively thin to tap top The dynamics at position, percussion makes the position form conical groove（8）, the cone of conical groove is more than the cone of bottom outlet cone-shaped end Bottom；Copper rod or asbestos cord are filled inside tapped blind hole（10）, tapped blind hole internal thread is protected；At conical groove Repair welding（9）, repair welding thickness is slightly above back of work surface, then polishes；With fluorescent penetrant or pressurized seal test method, weld sealing is examined, the reparation of tapped blind hole bottom outlet is completed after qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102281.7A CN106475734B (en) | 2016-12-05 | 2016-12-05 | A kind of repair welding after tapped blind hole depth is overproof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611102281.7A CN106475734B (en) | 2016-12-05 | 2016-12-05 | A kind of repair welding after tapped blind hole depth is overproof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106475734A CN106475734A (en) | 2017-03-08 |
| CN106475734B true CN106475734B (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611102281.7A Active CN106475734B (en) | 2016-12-05 | 2016-12-05 | A kind of repair welding after tapped blind hole depth is overproof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247919B (en) * | 2017-12-29 | 2021-03-12 | 山东豪迈机械科技股份有限公司 | Method for remanufacturing tire mold |
| CN109514172B (en) * | 2018-11-19 | 2020-04-14 | 德阳东汽电站机械制造有限公司 | Method for repairing threaded hole by bushing |
| CN112355565B (en) * | 2020-11-12 | 2021-08-27 | 燕山大学 | Device and method for repairing hole diameter of rod body seat hole of rod end joint bearing made of aluminum alloy |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861985A (en) * | 2012-09-29 | 2013-01-09 | 长春轨道客车股份有限公司 | Repairing method of aluminum alloy agitating friction welding hole defects |
| CN103028891A (en) * | 2013-01-15 | 2013-04-10 | 株洲南方燃气轮机成套制造安装有限公司 | Welding repair technique for inner hole of back mounting edge of back cover |
| CN103624477A (en) * | 2013-12-05 | 2014-03-12 | 大庆高新区北油创业科技有限公司 | Repair and reprocessing technology for blind hole of waste oil well perforating gun barrel |
| CN104690483A (en) * | 2015-02-13 | 2015-06-10 | 大庆高新区北油创业科技有限公司 | Compounding repair technology for blind hole in oil field waste perforating gun |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6615470B2 (en) * | 1997-12-15 | 2003-09-09 | General Electric Company | System and method for repairing cast articles |
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2016
- 2016-12-05 CN CN201611102281.7A patent/CN106475734B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102861985A (en) * | 2012-09-29 | 2013-01-09 | 长春轨道客车股份有限公司 | Repairing method of aluminum alloy agitating friction welding hole defects |
| CN103028891A (en) * | 2013-01-15 | 2013-04-10 | 株洲南方燃气轮机成套制造安装有限公司 | Welding repair technique for inner hole of back mounting edge of back cover |
| CN103624477A (en) * | 2013-12-05 | 2014-03-12 | 大庆高新区北油创业科技有限公司 | Repair and reprocessing technology for blind hole of waste oil well perforating gun barrel |
| CN104690483A (en) * | 2015-02-13 | 2015-06-10 | 大庆高新区北油创业科技有限公司 | Compounding repair technology for blind hole in oil field waste perforating gun |
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| CN106475734A (en) | 2017-03-08 |
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Effective date of registration: 20191104 Address after: 071056 No. 2222 Print-Rite West Road, Hebei, Baoding Patentee after: Baoding Tianwei Baobian Electric Co., Ltd. Address before: 071056, No. 2222 Print-Rite West Road, Xinshi District, Hebei, Baoding Patentee before: Baoding Tianwei Electrical Equipment Structure Co.,Ltd. |