CN110634631A - Novel cable insulating layer patching machine - Google Patents
Novel cable insulating layer patching machine Download PDFInfo
- Publication number
- CN110634631A CN110634631A CN201910977919.9A CN201910977919A CN110634631A CN 110634631 A CN110634631 A CN 110634631A CN 201910977919 A CN201910977919 A CN 201910977919A CN 110634631 A CN110634631 A CN 110634631A
- Authority
- CN
- China
- Prior art keywords
- cable
- mould
- insulation layer
- machine according
- heating
- 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.)
- Pending
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 50
- 238000009413 insulation Methods 0.000 claims abstract description 30
- 150000001875 compounds Chemical class 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 abstract description 10
- 230000004927 fusion Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 239000004020 conductor Substances 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000004023 plastic welding Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/143—Insulating conductors or cables by extrusion with a special opening of the extrusion head
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/143—Insulating conductors or cables by extrusion with a special opening of the extrusion head
- H01B13/144—Heads for simultaneous extrusion on two or more conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/145—Pretreatment or after-treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
- H01R43/0207—Ultrasonic-, H.F.-, cold- or impact welding
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/16—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Processing Of Terminals (AREA)
Abstract
The invention discloses a novel cable insulation layer wire repairing machine which comprises a power supply device for providing and controlling a power supply, a cable mould for repairing a cable insulation layer and a working platform, wherein the cable mould is provided with a cable wire repairing hole, the cable mould is provided with a driving device for driving the cable mould to open and close the mould, the cable mould is provided with a heating structure for heating the mould, the driving device and the heating structure are electrically connected with the power supply device, a temperature value can be preset after the cable mould reaches a certain temperature through the heating structure, and then a cable to be repaired is placed on the cable wire repairing hole of the cable mould to be subjected to fusion crimping and repairing.
Description
Technical Field
The invention relates to the technical field of cable repair, in particular to a novel cable insulation layer wire repairing machine.
Background
The production process of the wire and cable has the phenomenon that two wire cores of the same specification are connected and the phenomenon that a cable insulating layer has local defects, when two bare copper conductors are butted, the connection repairing work of the insulating layer is needed to be carried out at the joint, and when the phenomenon that the insulating layer has the local defects, a section of bare conductor can be repaired by a knife at the position where the defects appear, and then the repairing is carried out.
The existing method for repairing the cable insulating layer is to heat a heat-shrinkable tube by a hot air plastic welding gun to enable the heat-shrinkable tube to shrink and tightly cover at a bare copper conductor interface for repairing, the method for repairing has the following problems that the hot air temperature is difficult to control, the hot air process is unstable and easy to form local scorching phenomenon, the hot air temperature is uneven, the bonding part covered by the heat-shrinkable tube on the surface of a copper conductor is not tightly sealed enough, the heat-shrinkable tube is difficult to pass when being subjected to a water immersion resistance test, the current heat-shrinkable tube in the market cannot reach the standard value of the insulation thickness, so that the thickness of the repaired insulating layer is too thin, the wall thickness of the heat-shrinkable tube after heating and cooling is difficult to control to reach the standard value of the insulation thickness, so that the thickness of the repaired insulating layer is too thin, the insulating material of the heat-shrinkable tube and the insulating material to be repaired belong to different, after the heat shrink tube is tightly coated, a boss is formed at the insulating interface, the outer diameter is increased, the outer diameter size cannot be kept consistent, and the boss has great influence on subsequent production overmoulding (such as a cabling process and the like).
Disclosure of Invention
Therefore, the invention provides the novel cable insulation layer wire repairing machine which is uniform and controllable in heating temperature, can ensure the performance of the repaired cable to be safe and reliable, can ensure the diameter of the repaired cable to be unchanged, and can improve the stability of the repairing process.
In order to solve the problems, the invention adopts the following technical scheme:
the utility model provides a novel cable insulating layer line patching machine which characterized in that: including power supply unit, cable mould, the work platform that is used for repairing cable insulating layer that is used for providing and control power, the cable mould is equipped with cable repair line hole, the cable mould is equipped with the drive arrangement who is used for driving cable mould die sinking compound die, the cable mould is equipped with the heating structure who is used for heating the mould, drive arrangement and heating structure all are connected with power supply unit electricity.
Preferably, the cable mould comprises an upper mould and a lower mould, the upper mould is connected with the driving device, and the lower mould is fixed on the working platform.
Preferably, the lower die is provided with a guide pull pin for positioning and guiding, and the upper die is provided with a positioning hole matched with the guide pull pin.
Preferably, the driving means is a cylinder.
Preferably, the heating structure is a heating tile, and the heating structure is fixed on the back of the heating mould.
Preferably, one side of the heating structure, which is far away from the mold, is provided with a heat insulation plate, and one side of the heat insulation plate, which is far away from the heating structure, is provided with a connecting plate.
Preferably, the bottom surface of the working platform is provided with rollers.
Preferably, the novel cable insulation layer wire repairing machine provided by the invention further comprises a bracket for supporting the fixing part, and the bracket is fixedly connected with the working platform.
Preferably, the power supply device is provided with a timer for controlling the heating time.
Preferably, the number of the cable repair holes is more than one.
Compared with the prior art, the novel cable insulation layer wire repairing machine provided by the invention comprises a power supply device for supplying and controlling a power supply, a cable mould for repairing a cable insulation layer and a working platform, wherein the cable mould is provided with a cable wire repairing hole, the cable mould is provided with a driving device for driving the cable mould to open and close the mould, the cable mould is provided with a heating structure for heating the mould, the driving device and the heating structure are both electrically connected with the power supply device, a temperature value can be preset after the cable mould reaches a certain temperature through the heating structure, and a cable to be repaired is placed on the cable wire repairing hole of the cable mould to be subjected to fusion crimping and repairing, so that the problem that the heating temperature of a traditional hot air plastic gun is difficult to control is solved, the temperature is uniform and controllable through the heating structure, the coating of the insulation layer is more uniform under the constant pressure of the driving device during wire repairing, The novel cable insulating layer wire repairing machine is compact, the adaptation of the aperture of the pressing die ensures that the outer diameter of a repaired piece is consistent, the insulating layer repairing material is sufficient and easily available, and the material performance is consistent with the material of the repaired piece.
Drawings
Fig. 1 is a schematic structural diagram of a novel cable insulation layer wire repairing machine provided by the invention;
fig. 2 is a schematic structural diagram of a cable mold of the novel cable insulation layer wire repairing machine provided by the invention.
In the figure: 1. the cable repair device comprises a power supply device, 2 cable moulds, 3 working platforms, 4 cable repair holes, 5 driving devices, 6 heating structures, 7 upper moulds, 8 lower moulds, 9 guide pull pins, 10 positioning holes, 11 heat insulation plates, 12 connecting plates, 13 rollers, 14 supports and 15 timers.
Detailed Description
The invention is further explained with reference to fig. 1 to 2, and a novel cable insulation layer wire repairing machine comprises a power supply device 1 for supplying and controlling a power supply, a cable mold 2 for repairing a cable insulation layer, and a working platform 3, wherein the cable mold 2 is provided with a cable wire repairing hole 4, the cable mold 2 is provided with a driving device 5 for driving the cable mold 2 to open and close a mold and apply pressure to a cable, the cable mold 2 is provided with a heating structure 6 for heating the cable mold 2, and the driving device 5 and the heating structure 6 are both electrically connected with the power supply device 1.
Further, in order to enable the cable mould to be accurately positioned when the mould is opened and closed, the lower mould 8 is provided with a guide pull pin 9 for positioning and guiding, and the upper mould 7 is provided with a positioning hole 10 matched with the guide pull pin 9.
Further, the driving device 5 is an air cylinder to stabilize the driving pressure.
Further, in order to enable the heating temperature to be uniform and controllable, the heating structure 6 is a heating tile block, a conventional heating electric appliance is arranged on the heating tile block, heating can be achieved, the heating structure 6 is arranged on the back face of the cable mold 2, and the back face of the cable mold 2 is the reverse face of the working face of the cable mold 2.
Further, in order to prevent the heat of the heating structure 6 from affecting other components of the device, a heat insulation plate 11 is arranged on one side, away from the cable mold 2, of the heating structure 6, a connection plate 12 is arranged on one side, away from the heating structure 6, of the heat insulation plate 11, and the connection plate 12 can be used for being connected with the working platform 3.
Further, in order to enable the cable insulation layer patching machine to be convenient to transport, the bottom surface of the working platform 3 is provided with a roller 13.
Further, in order to achieve a control of the heating time of the heating structure, the power supply device 1 is provided with a timer 15 for controlling the heating time of the heating structure 6.
Further, in order to repair a plurality of cables simultaneously, the number of the cable repair holes 4 is more than one, and the aperture of each cable repair hole 4 can be adjusted according to the size of the cable.
The novel cable insulation layer wire repairing machine provided by the invention further comprises a support 14 for supporting the fixing part, the support 14 is fixedly connected with the working platform 3, and the power supply device 1 and the cable mold 2 are both fixed on the support 14.
The novel cable insulating layer wire patching machine provided by the invention has the working process that:
firstly, butt-jointing bare copper conductors by using a cold welding machine, and deburring at the joint; or when the insulating layer has local defects, trimming a section of bare copper conductor by using a knife at the defective part so as to repair the bare copper conductor.
Preparing a clean repairing sheet material which is the same as the insulating layer material and has a flat and smooth surface; the thickness of the repairing sheet is about 110% of the nominal thickness of the insulating layer, the width of the repairing sheet is at least one circle of cladding of the bare copper conductor to be repaired, and the length of the repairing sheet is about 10% longer than that of the completely cladded bare copper conductor.
Thirdly, connecting a power line, setting the temperature according to the melting technological parameters of the repairing sheet, heating the cable mould 2 until the temperature is stable, and setting the crimping time.
And fourthly, coating the bare copper conductor to be repaired with the repairing sheet, and flatly and longitudinally coating a layer of high-temperature polyester tape outside, wherein the length of the polyester tape is greater than the width of the compression mould, and two ends of the polyester tape are exposed. First-time crimping repair, smoothly placing the processed crimping repair piece in a cable repair hole 4 of a cable mold 2 (the aperture of the cable repair hole 4 is 10% larger than the diameter of a wire), carrying out melt crimping and sufficient cooling, taking out the crimping repair piece for deburring treatment, observing that the seam at the repaired position is complete, and observing whether obvious defects and copper leakage phenomena exist; and (3) second crimping and repairing, namely wrapping the flawless cable repaired for the first time with a high-temperature polyester film, smoothly placing a repairing piece on the selected cable repairing hole 4 with the diameter as large as the diameter of the cable, performing second crimping and repairing, taking out the repaired cable to remove burrs overflowing from crimping, and observing the seaming condition again. And (4) carrying out spark machine test and immersion voltage-withstanding test inspection on the repaired part subjected to secondary compression joint trimming according to the voltage-withstanding voltage of the insulated wire core, wherein the repaired part is qualified if no breakdown phenomenon exists.
In addition, the present invention is not limited to the above embodiments, and the technical effects of the present invention can be achieved by substantially the same means, which are within the scope of the present invention.
Claims (10)
1. The utility model provides a novel cable insulating layer line patching machine which characterized in that: including power supply unit (1), cable mould (2), the work platform (3) that are used for repairing the cable insulating layer that are used for providing and controlling power, cable mould (2) are equipped with cable repair hole (4), cable mould (2) are equipped with and are used for driving cable mould (2) die sinking compound die and exert the drive arrangement (5) of pressure to the cable, cable mould (2) are equipped with heating structure (6) that are used for heating cable mould (2), drive arrangement (5) and heating structure (6) all are connected with power supply unit (1) electricity.
2. The cable insulation layer wire repairing machine according to claim 1, wherein: cable mould (2) are including going up mould (7) and lower mould (8), it is connected with drive arrangement (2) to go up mould (7), lower mould (8) are fixed on work platform (3).
3. The cable insulation layer wire repairing machine according to claim 2, wherein: the lower die (8) is provided with a guide pull pin (9) for positioning and guiding, and the upper die (7) is provided with a positioning hole (10) matched with the guide pull pin (9).
4. The cable insulation layer wire repairing machine according to claim 1, wherein: the driving device (5) is an air cylinder.
5. The cable insulation layer wire repairing machine according to claim 1, wherein: the heating structure (6) is a heating tile, and the heating structure (6) is arranged on the back of the cable mould (2).
6. The cable insulation layer wire repairing machine according to claim 5, wherein: one side, far away from cable mould (2), of heating structure (6) is equipped with heat insulating board (11), one side, far away from heating structure (6), of heat insulating board (11) is equipped with connecting plate (12).
7. The cable insulation layer wire repairing machine according to claim 1, wherein: and the bottom surface of the working platform (3) is provided with a roller (13).
8. The cable insulation layer wire repairing machine according to claim 1, wherein: the device also comprises a bracket (14) for supporting the fixed part, wherein the bracket (14) is fixedly connected with the working platform (3).
9. The cable insulation layer wire repairing machine according to claim 1, wherein: the power supply device (1) is provided with a timer (15) for controlling the heating time.
10. The cable insulation layer wire repairing machine according to claim 1, wherein: the number of the cable repair holes (4) is more than one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910977919.9A CN110634631A (en) | 2019-10-15 | 2019-10-15 | Novel cable insulating layer patching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910977919.9A CN110634631A (en) | 2019-10-15 | 2019-10-15 | Novel cable insulating layer patching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110634631A true CN110634631A (en) | 2019-12-31 |
Family
ID=68975108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910977919.9A Pending CN110634631A (en) | 2019-10-15 | 2019-10-15 | Novel cable insulating layer patching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110634631A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054363A (en) * | 2020-09-07 | 2020-12-08 | 广州极诣科技有限公司 | Signal wire breakage repairing equipment and restoring method |
| CN113858666A (en) * | 2021-09-17 | 2021-12-31 | 广东溢康通空气弹簧有限公司 | Air spring repair equipment with double stations provided with heating devices |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010273436A (en) * | 2009-05-20 | 2010-12-02 | Nippon Steel Corp | Method and apparatus for repairing cab tire cable |
| CN203504083U (en) * | 2013-09-08 | 2014-03-26 | 湖北鄂电萃宇电缆有限公司 | Damage repair die for cable insulating layer |
| CN206516428U (en) * | 2017-01-17 | 2017-09-22 | 河北弘飞线缆集团有限公司 | A kind of cable prosthetic device |
| CN208806094U (en) * | 2018-08-31 | 2019-04-30 | 中国石油天然气集团有限公司 | All-in-one machine is repaired in insulated cable core detection |
| CN209071785U (en) * | 2018-11-20 | 2019-07-05 | 嘉兴市新缆电缆有限公司 | A kind of cable insulation prosthetic device |
| CN210722580U (en) * | 2019-10-15 | 2020-06-09 | 广州南洋电缆有限公司 | Novel cable insulating layer patching machine |
-
2019
- 2019-10-15 CN CN201910977919.9A patent/CN110634631A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010273436A (en) * | 2009-05-20 | 2010-12-02 | Nippon Steel Corp | Method and apparatus for repairing cab tire cable |
| CN203504083U (en) * | 2013-09-08 | 2014-03-26 | 湖北鄂电萃宇电缆有限公司 | Damage repair die for cable insulating layer |
| CN206516428U (en) * | 2017-01-17 | 2017-09-22 | 河北弘飞线缆集团有限公司 | A kind of cable prosthetic device |
| CN208806094U (en) * | 2018-08-31 | 2019-04-30 | 中国石油天然气集团有限公司 | All-in-one machine is repaired in insulated cable core detection |
| CN209071785U (en) * | 2018-11-20 | 2019-07-05 | 嘉兴市新缆电缆有限公司 | A kind of cable insulation prosthetic device |
| CN210722580U (en) * | 2019-10-15 | 2020-06-09 | 广州南洋电缆有限公司 | Novel cable insulating layer patching machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112054363A (en) * | 2020-09-07 | 2020-12-08 | 广州极诣科技有限公司 | Signal wire breakage repairing equipment and restoring method |
| CN113858666A (en) * | 2021-09-17 | 2021-12-31 | 广东溢康通空气弹簧有限公司 | Air spring repair equipment with double stations provided with heating devices |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106112166B (en) | The automated system and implementation method of metalwork and coaxial cable welding | |
| CN110634631A (en) | Novel cable insulating layer patching machine | |
| CN203504083U (en) | Damage repair die for cable insulating layer | |
| CN109995195B (en) | Motor stator rule aftertreatment production line | |
| CN208028507U (en) | A kind of electric wire prosthetic device for reducing line loss | |
| CN210722580U (en) | Novel cable insulating layer patching machine | |
| CN209823599U (en) | Automatic wiring and detection production line for motor stator | |
| CN209823600U (en) | Post-treatment production line for motor stator inserted line | |
| CN110601097A (en) | Universal repair method for cable damage | |
| CN114336438A (en) | Method for repairing mineral insulated cable copper sheath | |
| CN203650794U (en) | Repairing vulcanizing device of rubber sheathed electric wire | |
| CN207530292U (en) | A kind of stripping braiding layer machine | |
| CN111590187A (en) | Current heating diffusion connection device and method | |
| CN110943354B (en) | Hot-melting type quick connection method for digital cable | |
| CN207732259U (en) | A kind of full-automatic sanction line solder machine | |
| CN110336403A (en) | A kind of Novel stator component and its processing technology | |
| CN102104999A (en) | Far infrared heating plate and manufacturing method thereof | |
| CN112404626B (en) | Litz wire welding device | |
| CN111969393B (en) | Device and method for stripping coating layer of polyimide copper-clad wire | |
| CN105312737A (en) | Method and tool for welding flat type copper wire windings and commutators of high-power motor | |
| CN209394121U (en) | Superconducting tape welder | |
| CN115149469B (en) | Manufacturing process of ultrahigh-voltage direct-current 525kV lapped fusion type soft joint | |
| CN219957062U (en) | Molding tool for non-cured rubber asphalt waterproof coating | |
| CN220048752U (en) | Welding strip gluing device and composite welding strip | |
| CN218918640U (en) | Coil coiling heating auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |