CN102024535B - Bushing shield and fabricating method therefor - Google Patents
Bushing shield and fabricating method therefor Download PDFInfo
- Publication number
- CN102024535B CN102024535B CN2010101089669A CN201010108966A CN102024535B CN 102024535 B CN102024535 B CN 102024535B CN 2010101089669 A CN2010101089669 A CN 2010101089669A CN 201010108966 A CN201010108966 A CN 201010108966A CN 102024535 B CN102024535 B CN 102024535B
- Authority
- CN
- China
- Prior art keywords
- protective cover
- anchor clamps
- raw sheet
- cover
- mesh screen
- Prior art date
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
- B21D47/005—Making gratings
-
- 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
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
-
- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C3/00—Abrasive blasting machines or devices; Plants
- B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/38—Fittings, e.g. caps; Fastenings therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Insulators (AREA)
- Insulating Bodies (AREA)
- Electrolytic Production Of Metals (AREA)
Abstract
The invention provides a bushing shield and a fabricating method therefore, comprising: steps of forming a shield original plate via shearing of a mesh screen according to a specific plate, wherein, a joint end portion protrudes at the two end portions of the shield original plate; a step of fixing the shield original plate on jigs comprising a first jig and a second jig capable of adjusting positions; a step of adjusting the relative position of the first jig and the second jig, and making a butt joint of the joint end portions respectively formed at the two end ports of the shield original plate; a step of joining the joint end portions in mutual contact via laser welding and forming the shield body; and a step of dismounting the shield body from the jigs.
Description
Technical field
The present invention relates to effective protective cover of a kind of cover and preparation method thereof, this overlaps the inside pipe casing that is used for input and output electric power that effective protective cover is installed in power equipment, concentrates in order to alleviate the electric field of the power equipment that is applied with high-tension electricity, and it is destroyed to prevent from insulating.
Background technology
Sleeve pipe uses the part at the input and output electric power of power equipments such as for example instrument transformer (Instrument Transformer), reactor, switchgear; the main insulating effect that rises, it comprises by the insulator that forms and the protective covers (shield) that is embedded in insulator inside such as epoxy resin.Overlap effective protective cover and apply between the conductor of voltage and arrange across the appropriate insulation body, have the electric field of alleviating power equipment and concentrate and the ruined effect that prevents from insulating.In addition, overlap the effect that effective protective cover has the voltage detecting transducer, namely can check by the capacitance partial pressure mode whether circuit is charged.
Overlapping effective protective cover generally is made of columnar metal master and the voltage detection terminal that combines with main body.The metal master that overlaps effective protective cover has the mesh screen structure, and so-called mesh screen structure is represented to weave the network structure that forms with the less wire cross of diameter.
Usually, overlapping effective protective cover is that the mesh screen with rectangular plate-like of specific length is bent to form to after the cylindrical shape, waits by welding its two ends connection is made.But, connect the welding method at mesh screen two ends, not only can produce environmental problem, and, cause the wire end projection of mesh in weld part branch.When so the wire end of projection applies high voltage, can cause that electric field is concentrated, thereby cause insulating ruined problem.
Therefore, when making the effective protective cover of cover, should improve the operation that connects the mesh screen two ends, avoiding the wire projection of mesh screen, thereby prevent from causing electric field to concentrate at jut.
Summary of the invention
The present invention makes in order to address the above problem, and its purpose is to provide effective protective cover of a kind of cover and preparation method thereof, has avoided the wire projection of mesh screen, thereby has stoped electric field to be concentrated, and it is destroyed to prevent from insulating, and has improved its durability.
The manufacture method of the effective protective cover of cover that one embodiment of the invention relate to comprises: length is cut out the mesh screen raw sheet and is formed the step of protective cover raw sheet in accordance with regulations, wherein, is extruded with engagement end portion at the both ends of protective cover raw sheet; The protective cover raw sheet is fixed on the step on the anchor clamps that comprise first anchor clamps that to regulate the mutual alignment and second anchor clamps; Regulate the relative position of first anchor clamps and second anchor clamps, the step that the engagement end portion that forms respectively at the both ends of protective cover raw sheet is docked mutually; The engagement end portion of utilizing laser welding to make to be in contact with one another engages, and forms the step of protective cover main body; And the step that unloads the protective cover main body from anchor clamps.
The embodiment of the manufacture method of the effective protective cover of cover that the present invention relates to can possess one or two above features as described below.For example, can also be included in after the formation protective cover main body, it is carried out the step of reprocessing.And this reprocessing comprises blasting treatment (sand blast).
The manufacture method of overlapping effective protective cover can also comprise: after anchor clamps unload the protective cover main body, form the step of curled portion in the end of protective cover main body.
Can also be, the mesh screen raw sheet be made of metal material, and anchor clamps utilize magnetic to fix the mesh screen raw sheet.In addition, the mesh screen raw sheet can have the mesh of rhombus.
The effective protective cover of the cover that one embodiment of the invention relate to is to utilize aforesaid manufacture method to produce.
According to effective protective cover of cover provided by the invention and preparation method thereof, since the wire of mesh screen projection not, the generation that can avoid electric field to concentrate, and it is destroyed to prevent from insulating, and can improve durability.
The present invention can carry out multiple variation and have various embodiments, and the specific embodiment by as shown in the figure is elaborated.But these also are not used in the present invention are defined as certain embodiments, the present invention includes all changes, equivalent structure and the alternative structure that belongs in inventive concept and the technical scope but be construed as.In explanation of the present invention, when thinking that the detailed description of relevant known technology may influence purport of the present invention, omit its detailed description.
First, second term such as grade can be used for the diversified inscape of explanation, and still, above-mentioned term is not to limit above-mentioned inscape, and the application target of these terms is for distinguishing different inscapes.
The term that uses among the application is not to limit the present invention for the explanation specific embodiment.Being expressed under the situation that does not have different implications in the article of odd number, it comprises a plurality of statements.Among the application, " comprise " or terms such as " having ", be used to specify the feature put down in writing in the specification, numeral, step, action, inscape, part or and the existence of combination, should not be construed as it and get rid of one or two other above features or existence and its additional possibility of numeral, step, action, element, part or its combination.
Under the situation of not having other definition, all term (comprising technical term and scientific terminology) has the implication identical with the technology contents that those having ordinary skill in the art will appreciate that as used herein.With the term of the technology contents identical meanings of definition in the normally used dictionary, should explain the identical implication of implication that shows in the article that has with correlation technique.Do not have in this application under the clearly defined situation, it can not be interpreted as desirable or too pro forma implication.
Description of drawings
Below, the embodiment that present invention will be described in detail with reference to the accompanying relates to.When describing with reference to accompanying drawing, give identical mark for identical or corresponding inscape, and omit its repeat specification.
Fig. 1 is the stereogram of the effective protective cover 100 of cover that relates to of expression one embodiment of the invention;
Fig. 2 is the flow chart of the manufacture method of the effective protective cover 100 of cover that relates to of expression one embodiment of the invention;
Fig. 3 is the vertical view of expression mesh screen raw sheet;
Fig. 4 be expression from the mesh screen raw sheet in accordance with regulations length cut out and form the vertical view of protective cover raw sheet;
Fig. 5 is the stereogram that expression protective cover raw sheet is fixed on the state on the anchor clamps;
Fig. 6 is the schematic diagram that is illustrated in the state that the formed engagement end portion in both ends of the protective cover raw sheet that is fixed on the anchor clamps is not in contact with one another;
To be expression regulate the schematic diagram of the state that the engagement end portion make the protective cover raw sheet that is fixed on the anchor clamps is in contact with one another by anchor clamps to Fig. 7.
Embodiment
Fig. 1 is the stereogram of the effective protective cover 100 of cover that relates to of expression one embodiment of the invention.
With reference to Fig. 1, the effective protective cover 100 of the cover that one embodiment of the invention relate to comprises: the protective cover main body of the drum of both ends open, the curled portion 160 that forms in the top and bottom of protective cover main body and the closing line 150 that is equivalent to bonding wire respectively.
The protective cover main body is have certain diameter columnar structured, makes by being welded to connect its two ends after the protective cover raw sheet 120 (with reference to the Reference numeral 120 of Fig. 3) of rectangle is bent to tubular.Protective cover raw sheet 120 is made of a plurality of meshes (mesh) 122; when the effective protective cover 100 of cover is embedded to insulator inside; such mesh 122 not only can increase contact area; and; because mesh has certain retractility, therefore can enlarge or dwindle its diameter to a certain extent.
The protective cover main body can be made of materials such as aluminium, steel (steel), brass or copper, but is not limited to these materials.In addition, among the application's the embodiment illustration have the protective cover main body of drum, but be not limited thereto, the protective cover main body can have different shape.For example, the protective cover main body can have in the bottom surface and is formed with diameter less than the cup-shape of the peristome of drum diameter.
Upper end and bottom in the protective cover main body are formed with curled portion 160.Curled portion 160 is to be curled laterally in the upper end of protective cover raw sheet 120 and bottom and form, or will place the upper end of protective cover main body and bottom as the additional metals body that spring or copper rod etc. have a circular configuration respectively and form.
The electric field that is produced by the electric current of the contact rod (not shown) that flows through sleeve pipe generally is concentrated in the tip, and particularly, electric field concentrates on the possibility maximum of the jut (with reference to the Reference numeral 127 of Fig. 3) of the upper end that is formed at protective cover raw sheet 120 and bottom.Such electric field is concentrated can cause partial discharge, makes epoxy resin be heated, thereby produces the such problem of insulation of destroying.Therefore, by in the main body upper end that is formed with the projection 127 that is equivalent to jut and the bottom form curled portion 160, can prevent that electric field from concentrating.
With the closing line 150 that straight line forms, be equivalent to utilize the part of welding such as laser welding along the length direction of protective cover main body.Closing line 150 is that protective cover raw sheet 120 is curled into after the cylindrical shape, utilizes its two ends of laser welding (with reference to the engagement end portion 124 of Fig. 4) and the part that forms.When making the effective protective cover 100 of cover that present embodiment relates to, can not produce projection in closing line 150 parts, can prevent that therefore the caused electric field of projection from concentrating.Below, further describe the method that formation does not produce the closing line of projection.
Below, describe the manufacture method of the effective protective cover of cover that one embodiment of the invention relate in detail with reference to Fig. 2 to Fig. 7.
Fig. 2 is the flow chart of the manufacture method of the effective protective cover of cover that relates to of expression one embodiment of the invention; Fig. 3 is the vertical view that expression is used for making the mesh screen raw sheet 110 that overlaps effective protective cover 100; Fig. 4 is that expression is in order to make the effective protective cover 100 of cover, the vertical view of the protective cover raw sheet 120 cut out of length in accordance with regulations; Fig. 5 is the stereogram that expression protective cover raw sheet 120 is fixed on the state on the anchor clamps 140; Fig. 6 is the schematic diagram of engagement end portion 124 that expression is fixed on the protective cover raw sheet 120 on the anchor clamps 140 state when not being in contact with one another; Fig. 7 is the schematic diagram that expression alignment jig 140 makes the state that the engagement end portion 124 of protective cover raw sheet 140 is in contact with one another.
With reference to Fig. 2, the manufacture method of the effective protective cover 100 of the cover that one embodiment of the invention relate to comprises: cut out mesh screen raw sheet 110 and the step of formation protective cover raw sheet by certain-length; The protective cover raw sheet of cutting out 120 is fixed on step on the anchor clamps 140; The step that alignment jig 140 is in contact with one another engagement end portion 124; Utilize laser welding engagement end portion 124 and the step of formation protective cover main body; Unload the step of protective cover main body from anchor clamps 140.
The characteristic point of the manufacture method of the effective protective cover 100 of the cover that present embodiment relates to is when forming protective cover raw sheet 120 cutting out mesh screen raw sheet 110, to make engagement end portion 124 projections at its two ends.When shape of a mesh was rhombus, engagement end portion 124 was formed by two limits of adjacency of rhombus and has "＜" or "〉" shape, and outstanding to the left and right.Utilize laser to be welded to each other so engagement end portion, can prevent the formation of projection, also can avoid welding the environmental pollution that causes.
In addition, the characteristic point of the manufacture method of the effective protective cover 100 of the cover that present embodiment relates to is that utilization can be regulated first anchor clamps 142 and second anchor clamps 144 of mutual alignment, is adjusted in the position of the engagement end portion 124 that forms on the protective cover raw sheet 120.When the anchor clamps 140 that utilize this structure are welded to each other engagement end portion 124, can not produce projection.
Below, with reference to Fig. 3 to Fig. 7, further describe the manufacture method of the effective protective cover 100 of cover that one embodiment of the invention relate to.
With reference to Fig. 3, have a plurality of meshes 122 on the mesh screen raw sheet 110.Mesh screen raw sheet 110 is made of the metal material that aluminium, steel or brass etc. have conductivity.The manufacture method of mesh screen raw sheet 110 comprises, utilize very thin round iron silk interlacing to reticulate structure, perhaps the metal that injects molten condition in having the mould of network is made, and perhaps utilizes punch press to form network structure in the metallic plate punching, but is not limited to these methods.
With reference to Fig. 4, cut out mesh screen raw sheet 110 and form protective cover raw sheet 120 by certain-length.Protective cover raw sheet 120 can have rectangular shape, still, is formed with "＜" or "〉of a part that is equivalent to mesh 122 at both ends along its length " engagement end portion 124 of shape.In addition, protective cover raw sheet 120 possesses upper end and bottom.Be formed with projection 127 in upper end and bottom, be easy to generate electric field and concentrate, concentrate in order to prevent this electric field, can form curled portion 160, this structure is identical with above-mentioned record content.
In Fig. 3, if cut out mesh screen raw sheet 110 along cut line A and A ', what then form at the both ends of protective cover raw sheet 120 possesses "＜" and "〉" engagement end portion 124 of shape direction projection to the left and right.The reason that forms such engagement end portion 124 at the both ends of protective cover raw sheet 120 is, the head portion by solder joints end 124 forms smooth closing line 150, just can not form projection.
Mesh screen raw sheet 110 can utilize punch press or cutting machine to cut out.And, because mesh screen raw sheet 110 has a plurality of meshes 122 and is made of metal material, therefore, have certain retractility along its length.So, even the diameter that bend protection cover raw sheet 120 forms is bigger or little than the diameter of the effective protective cover 100 of the cover of designing requirement, still, because mesh screen raw sheet 110 can stretch, just can overcome its error.In addition, by reducing the size of mesh 122, can further dwindle error.
Though in the present embodiment illustration grid 122 of rhombus, unquestionable, the shape of grid 122 can be different shapes such as ellipse or quadrangle.At this moment, the shape of engagement end portion 124 can be oval or a tetragonal part.
With reference to Fig. 5, protective cover raw sheet 120 is fixed on the columnar anchor clamps 140, thereby forms cylindrical shape.Anchor clamps 140 comprise having semi-circular cross-section and mutual opposed first anchor clamps 142 and second anchor clamps 144.And first anchor clamps 142 and second anchor clamps 144 can move by straight line.Therefore, fixing first anchor clamps 142 under the situation of mobile second anchor clamps 144, perhaps under the opposite situation, can change the relative position of first anchor clamps and second anchor clamps.
Anchor clamps 140 have the shape corresponding with the shape of protective cover main body, because the protective cover main body that present embodiment relates to has drum, so anchor clamps 140 also have drum.Certainly, when the protective cover main body had other shape outside the drum, the shape of anchor clamps 140 also can change thereupon, and this is mathematical.
After the protective cover raw sheet 120 after fixedly cutting out with anchor clamps 140, make it possess definite shape by plastic deformation.In the present embodiment, utilize the anchor clamps 140 of drum that protective cover raw sheet 120 is bent to drum.Anchor clamps 140 can utilize fixedly protective cover raw sheet 120 of magnetic force, that is, because protective cover raw sheet 120 is made of metal, so by providing magnetic force to anchor clamps 140, protective cover raw sheet 120 can be fixed on the anchor clamps 140.Certainly, utilize the fixedly method of protective cover raw sheet 120 of anchor clamps 140, except utilize magnetic force fixing, can also utilize fastening means such as bolt, the mode of perhaps utilizing other anchor clamps pressurization to fix, but be not limited to these methods.
Protective cover raw sheet 120 is fixed on the anchor clamps 140, just becomes state shown in Figure 6.As can be seen from Figure 6, the not butt joint mutually of the top of the engagement end portion 124 that forms at the both ends of protective cover raw sheet 120, but staggering.In addition, after protective cover raw sheet 120 was fixed on the anchor clamps 140, the position of regulating so fixing protective cover raw sheet 120 was relatively more difficult.But the anchor clamps 140 that present embodiment relates to have first anchor clamps 142 and second anchor clamps 144 that can move mutually, so after fixing protective cover raw sheet 120, also can regulate its relative position.
As shown in Figure 7, move first anchor clamps 142 and second anchor clamps 144, can regulate the position of the protective cover raw sheet 120 that is fixed on the anchor clamps 140.As can be seen from Figure 7, the top of engagement end portion 124 is in the state of mutual butt joint, therefore, also can not be created in the upper end of protective cover raw sheet 120 and the projection 127 that the bottom forms after the welding.
Can pass through actuator drive unit or manual operationss such as (not shown), regulate the relative position of first anchor clamps 142 and second anchor clamps 144.
Be adjusted in as illustrated in fig. 7 after the position of the engagement end portion 124 that the both ends of protective cover raw sheet 120 form, utilize the butted part of laser welding engagement end portion 124 and engagement end portion 124.Generally speaking, use gas welding or the arc welding of solder bar can produce bead or welding slag, therefore, can exist the bonding part rough, form the problem of concentrating the projection of electric field easily in this part.In addition, utilize the welding of lead welding not only can produce projection, cause environmental pollution problems but also exist.But laser welding can the high concentration energy, can carry out the less welding in heated part, can not form projection, has the smooth advantage in welding position.Usually, laser can utilize ruby laser or carbon dioxide laser.
If engagement end portion 124 and the engagement end portion 124 that will form at the both ends of protective cover raw sheet 120 are docked mutually, then as shown in Figure 1, can form unpolarized ganoid closing line 150.Subsequently, the protective cover raw sheet 120 that engagement end portion 124 has been connected is after anchor clamps 140 unload, and is Paint Gloss in order to make the bonding part, carries out postprocessing working procedures again.
Postprocessing working procedures comprises abrasive cloth processing or sprays processing etc.Abrasive cloth processing is continuous cloth, burlap, belt, leather, rubber etc. to be overlapped into discoid and to be fixed on it is rotated at a high speed, thereby grinds the operation on processed product surface.The abrasive cloth operation comprises polishing (buffing) or polishing processing methods such as (polishing), the polishing processing method be utilize body in the tool flexibility use glue fixedly the emery wheel of particle (buffing wheel) carry out abrasive method; The polishing processing method is to use the solid grinding stone that bonds as grinding stone, and utilizes the rubbing action of subparticle to make the smooth method of its finished surface.In addition, spray processing method and be and utilize after shot-peening that methods such as centrifugal force or pressure-air will be made of metallic or abrasive grains accelerate, be ejected into the surface of converted products, carry out method for processing by the effect of impact of particle.Spraying processing method has bead (shot peening), grit blasting to handle (grit blast), blasting treatment methods such as (sand blast).Wherein, grit-blasting treatment process be with the sand high velocity jet to product to be processed, make its ganoid processing method.
Through aforesaid reprocessing, form the smooth effective protective cover 100 of cover of closing line 150 as shown in Figure 1.On the protective cover main body of the effective protective cover 100 of cover that so forms, can connect for detection of the voltage of responding to or whether monitor the terminal (not shown) of charged or ground connection.In addition, insert the contact rod (not shown) of sleeve pipe at the center of the effective protective cover 100 of cover, and keep certain distances with the effective protective cover 100 of cover, at contact rod with overlap the megohmite insulant that is filled with between the effective protective cover 100 as epoxy resin.
As mentioned above, though utilize the preferred embodiments of the present invention to be illustrated, but unquestionable, the general technical staff of the technical field of the invention can carry out multiple modification and distortion under the situation of the thought of the present invention of claims record that does not break away from the application and category.
Claims (6)
- One kind the cover effective protective cover manufacture method, it is characterized in that this method comprises:Length is cut out the mesh screen raw sheet that is made of metal material and is formed the step of protective cover raw sheet in accordance with regulations, wherein, is extruded with engagement end portion at the both ends of described protective cover raw sheet;Described protective cover raw sheet is fixed on step on the anchor clamps, and described anchor clamps comprise adjustable position and mobile first anchor clamps and second anchor clamps mutually;Regulate the relative position of described first anchor clamps and described second anchor clamps, the step that the top of the engagement end portion that forms respectively at the both ends of described protective cover raw sheet is docked mutually;The top of the engagement end portion of utilizing laser welding to make to be in contact with one another engages, and forms the step of protective cover main body; Unload the step of described protective cover main body from described anchor clamps; AndForm the step of curled portion in the end of described protective cover main body.
- 2. the manufacture method of the effective protective cover of cover as claimed in claim 1 is characterized in that, also comprises: after forming described protective cover main body, it is carried out the step of reprocessing.
- 3. the manufacture method of the effective protective cover of cover as claimed in claim 2 is characterized in that, described reprocessing comprises blasting treatment.
- 4. the manufacture method of the effective protective cover of cover as claimed in claim 1 is characterized in that, described mesh screen raw sheet is made of metal material, and described anchor clamps utilize magnetic to fix described mesh screen raw sheet.
- 5. the manufacture method of the effective protective cover of cover as claimed in claim 1 is characterized in that, described mesh screen raw sheet has the mesh of rhombus.
- 6. the effective protective cover of cover is characterized in that its utilization is produced as each described manufacture method in the claim 1 to 5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2009-0089373 | 2009-09-22 | ||
| KR1020090089373A KR101100847B1 (en) | 2009-09-22 | 2009-09-22 | Bushing shield and fabricating method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102024535A CN102024535A (en) | 2011-04-20 |
| CN102024535B true CN102024535B (en) | 2013-09-11 |
Family
ID=43865721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101089669A Expired - Fee Related CN102024535B (en) | 2009-09-22 | 2010-02-11 | Bushing shield and fabricating method therefor |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR101100847B1 (en) |
| CN (1) | CN102024535B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112659563A (en) * | 2020-11-27 | 2021-04-16 | 常州安一智能科技有限公司 | Barrel filter screen hot-pressing splicing equipment and working method thereof |
| CN117444408B (en) * | 2023-12-25 | 2024-02-20 | 山东理工大学 | Laser stripping device for ageing layer on surface of silicon rubber of umbrella skirt of insulator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294307A (en) * | 1994-09-13 | 1996-04-24 | Felten & Guilleaume Energie | Pressure resistant pipe with corrugated armouring |
| CN2268292Y (en) * | 1996-06-05 | 1997-11-19 | 上海浦东新区汇总贸易有限公司 | insulation shade for electric power transmission high-voltage pile top |
| CN1175075A (en) * | 1996-08-05 | 1998-03-04 | 三星电管株式会社 | Method for making shadow mask frame |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3740048B2 (en) * | 2001-10-12 | 2006-01-25 | 松下電器産業株式会社 | Battery can and battery using the same |
| KR20040044011A (en) * | 2002-11-20 | 2004-05-27 | 주식회사 포스코 | Apparatus for lip ring for convertor |
| KR100715135B1 (en) | 2005-12-15 | 2007-05-10 | 주식회사 세원정공 | Jig pin for spot welding |
| KR200444011Y1 (en) | 2008-01-08 | 2009-04-02 | 김태선 | Shield for bushing |
-
2009
- 2009-09-22 KR KR1020090089373A patent/KR101100847B1/en active IP Right Grant
-
2010
- 2010-02-11 CN CN2010101089669A patent/CN102024535B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2294307A (en) * | 1994-09-13 | 1996-04-24 | Felten & Guilleaume Energie | Pressure resistant pipe with corrugated armouring |
| CN2268292Y (en) * | 1996-06-05 | 1997-11-19 | 上海浦东新区汇总贸易有限公司 | insulation shade for electric power transmission high-voltage pile top |
| CN1175075A (en) * | 1996-08-05 | 1998-03-04 | 三星电管株式会社 | Method for making shadow mask frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102024535A (en) | 2011-04-20 |
| KR20110032061A (en) | 2011-03-30 |
| KR101100847B1 (en) | 2012-01-02 |
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