CN203967259U - The butt connector of 4/4ths detachable Ha Fuka - Google Patents
The butt connector of 4/4ths detachable Ha Fuka Download PDFInfo
- Publication number
- CN203967259U CN203967259U CN201420300742.1U CN201420300742U CN203967259U CN 203967259 U CN203967259 U CN 203967259U CN 201420300742 U CN201420300742 U CN 201420300742U CN 203967259 U CN203967259 U CN 203967259U
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- China
- Prior art keywords
- pipe fitting
- around
- ring
- around portion
- protuberance
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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.)
- Expired - Lifetime
Links
- 238000003032 molecular docking Methods 0.000 claims abstract description 23
- 241000271510 Agkistrodon contortrix Species 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The utility model discloses the butt connector of a kind of 4/4ths detachable Ha Fuka, for making the end face docking connection of two pipe fittings, it comprises: for clamping first clamping element of side of the first pipe fitting to be docked; Be used for the second clamping element of the side that clamps the second pipe fitting to be docked; And for connecting described the first clamping element and described the second clamping element, make the end face of described the first pipe fitting and the end face of described the second pipe fitting dock the locking member being connected.The utility model has been realized the end face of two pipe fittings has directly been contacted by technique scheme, and contact firm.
Description
Technical field
The utility model relates to field of metallurgical equipment, and particularly one is called the butt connector of 4/4ths detachable Ha Fuka.
Background technology
Electroslag furnace is a kind of resistance heat producing while utilizing electric current by slag carrys out remelting consumable electrode equipment as thermal source, has the advantages such as purity is high, sulfur-bearing is low, non-metallic inclusion is few through the product of its remelting.Along with nation-building, Aero-Space and national defense construction increase day by day to the demand of the meticulous steel of various high-quality, the effect of electroslag furnace becomes increasingly conspicuous.
The conduction material bar of electroslag furnace is a conductor material made of copper, and it has met the low resistance current circuit of (consumable electrode) from slidding carbon brush to electrode.Conduction material boom end is connecting the expendable part electrode contact copperhead during body of heater is smelted, and this electrode contact copperhead is used for being connected with consumable electrode and clamping consumable electrode.
Because maximum power melting electric current during smelting at electroslag furnace can reach 25000A, therefore the connected mode between conduction material bar and electrode contact copperhead is most important.In prior art, wire material bar is fixedly connected with by built-in bolt with electrode contact copperhead, but all will clamp and unclamp operation during each smelting, this will cause conduction to expect that bar is easy to bolt hole stripped thread, make that " electrode contact copperhead cannot effectively clamp.As do not found in time bolt stripped thread, will there will be very serious arcing accident, the lighter draws bad conduction material bar, contact copperhead, and severe one steel ingot is scrapped or the accident of blasting.So there is major safety risks and the equipment hidden danger that has an accident in former conduction material bar and electrode contact copperhead connected mode.
Summary of the invention
In order to solve problems of the prior art, the utility model provides the butt connector of a kind of 4/4ths detachable Ha Fuka, connect for the end face docking that makes two pipe fittings, it comprises: for clamping first clamping element of side of the first pipe fitting to be docked; Be used for the second clamping element of the side that clamps the second pipe fitting to be docked; And for connecting described the first clamping element and described the second clamping element, make the end face of described the first pipe fitting and the end face of described the second pipe fitting dock the locking member being connected.
In butt connector as above, preferably, described the first clamping element comprises: first ring clamps connecting portion around portion, second around portion and first, described first ring is all connected with described the first pipe fitting along the circumferential of described the first pipe fitting around portion with described second around portion, and described first ring is connected a complete annular to form around and clamp described first pipe fitting with the described second both ends around portion by described the first clamping connecting portion docking around the both ends of portion; Described the second clamping element comprises: the 3rd clamps connecting portion around portion, Fourth Ring around portion and second, the described the 3rd is all connected with described the second pipe fitting along the circumferential of described the second pipe fitting around portion with described Fourth Ring around portion, and described the 3rd both ends around portion are connected a complete annular to form around and to clamp described the second pipe fitting with Rao Bu both ends, described Fourth Ring by described the second clamping connecting portion docking.
In described butt connector, preferably, described first ring is first projection with the first protuberance and the second protuberance around portion and described second around the arbitrary described end in the both ends of portion, described the first protuberance extends axially along described the first pipe fitting, described the second protuberance extending radially outwardly along described the first pipe fitting; The described the 3rd is second projection with the 3rd protuberance and the 4th protuberance around the arbitrary described end in portion and Rao Bu both ends, described Fourth Ring, described the 3rd protuberance extends axially along described the second pipe fitting, described the 4th protuberance extending radially outwardly along described the second pipe fitting.
In butt connector as above, preferably, described the first protuberance is connected with described the second protuberance, and is structure as a whole; Described the 3rd protuberance is connected with described the 4th protuberance, and is structure as a whole.
In butt connector as above, preferably, described first ring is axially symmetric structure around portion and described second around portion, and described first ring is identical around the structure of portion with described second around portion; The described the 3rd is axially symmetric structure around portion and described Fourth Ring around portion, and the described the 3rd is identical around the structure of portion with described Fourth Ring around portion.
In butt connector as above, preferably, described the first clamping connecting portion and described second clamps connecting portion and is bolt.
In butt connector as above, preferably, described the first pipe fitting is circumferentially provided with groove along it, and described first ring all embeds in described groove around portion around portion and described second; Described the second pipe fitting is circumferentially provided with groove along it, and the described the 3rd all embeds in described groove around portion around portion and described Fourth Ring.
In butt connector as above, preferably, described first ring around a side of close the described first pipe fitting end face of portion along described the first pipe fitting be axially provided with concave station rank, described first ring passes through described concave station rank around portion and engages with described groove; Described second is provided with described concave station rank around portion and described Fourth Ring around portion around portion, the described the 3rd.
In butt connector as above, preferably, described locking member is bolt.
In butt connector as above, preferably, the conduction material bar that described the first pipe fitting is electroslag furnace; The electrode contact copperhead that described the second pipe fitting is described electroslag furnace.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is:
The first pipe fitting is clamped in the side of the first pipe fitting by the first clamping element, the second clamping element clamps the second pipe fitting in the side of the second pipe fitting, and locking member is connected the first clamping element with the second clamping element, realized the end face of two pipe fittings directly contacted, and contact firm.The conduction material bar that is electroslag furnace at the first pipe fitting, when the second pipe fitting is the electrode contact copperhead of electroslag furnace, by the use of this butt connector, realize conducting electricity and expected bar and electrode contact copperhead close contact, thereby avoided the generation of arcing accident, solved arcing accident potential, electroslag furnace cost of equipment maintenance and production smelting cost are greatly reduced, simultaneously easy accessibility, has reduced maintenance time of electroslag furnace equipment, has increased the rate of starting of electroslag furnace equipment.
Brief description of the drawings
A kind of first ring that Fig. 1 provides for the utility model embodiment is around the structural representation of portion;
A kind of first ring that Fig. 2 provides for the utility model embodiment around portion and second around portion's docking schematic diagram;
Fig. 3 is the front view of Fig. 2;
Fig. 4 is the vertical view of Fig. 2;
A kind of butt connector that Fig. 5 provides for the utility model embodiment and the connection diagram of the first pipe fitting and the second pipe fitting;
Wherein, in figure, sign flag is as follows:
1 first ring around portion, 2 second around portion, 3 first pipe fittings,
4 second pipe fittings, 5 bolts, 6 first clamping elements, 7 second clamping elements,
10 first projections, 11 first protuberances, 12 second protuberances, 13 concave station rank, 14 bolts hole.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model execution mode is described in further detail.
Referring to Fig. 1-5, the utility model embodiment provides a kind of butt connector, connects, even if the docking of the end face of the end face of the first pipe fitting and the second pipe fitting is connected for the end face docking that makes two pipe fittings.This butt connector comprises: the first clamping element, the second clamping element and locking member.The first clamping element is for clamping the side of the first pipe fitting to be docked; The second clamping element is for clamping the side of the second pipe fitting to be docked; Locking member is used for connecting the first clamping element and the second clamping element, and the end face of the first pipe fitting and the docking of the end face of the second pipe fitting are connected.So, by end face when docking of two pipe fittings, the end face that can realize two pipe fittings directly contacts, and contact firm.In actual applications, when this butt connector is connected for the conduction material bar (the first pipe fitting) of electroslag furnace and the electrode contact copperhead (the second pipe fitting) of electroslag furnace are docked, owing to making conduction material bar and electrode contact copperhead close contact, thereby avoid the generation of arcing accident, solve arcing accident potential, electroslag furnace cost of equipment maintenance and production smelting cost are greatly reduced, wherein, electrode contact copperhead is used for being connected with the consumable electrode of electroslag furnace and clamping consumable electrode.
Particularly, the first clamping element 6 comprises: first ring clamps connecting portion around portion 1, second around portion 2 and first.First ring around portion 1 along on the side that is circumferentially distributed in the first pipe fitting of the first pipe fitting, second around portion 2 along on the side that is circumferentially distributed in the first pipe fitting of the first pipe fitting, and first ring clamps connecting portion docking with the second both ends around portion 2 by first around the both ends of portion 1 and is connected a complete annular to form around and to clamp the first pipe fitting, it is the part that first ring is aforementioned annular around portion 1, second another part that is aforementioned annular around portion 2, first ring is concentric during in the axial distribution along the first pipe fitting around portion 2 around portion 1 and second.
The second clamping element 7 comprises: the 3rd clamps connecting portion around portion, Fourth Ring around portion and second.The 3rd around portion along on the side that is circumferentially distributed in the second pipe fitting of the second pipe fitting, Fourth Ring around portion along on the side that is circumferentially distributed in the second pipe fitting of the second pipe fitting, and the 3rd both ends around portion clamp connecting portion docking with Rao Bu both ends, Fourth Ring by second and are connected a complete annular to form around and to clamp the second pipe fitting, the 3rd is this annular part around portion, Fourth Ring is this annular another part around portion, and the 3rd is concentric during in the axial distribution along the second pipe fitting around portion around portion and Fourth Ring.
By by first ring around portion 1 and second around portion 2 all along the circumferential distribution of the first pipe fitting, the 3rd around portion and Fourth Ring around portion all along the circumferential distribution of the second pipe fitting, so can effectively increase first ring around portion 1 and second around portion 2 respectively clamping when the first pipe fitting and the contact area of the first pipe fitting, the 3rd around portion and the 4th circle segment not when clamping the second pipe fitting and the contact area of the second pipe fitting.
In order to make first ring clamp more securely the first pipe fitting around portion 1 and the second both ends around portion 2 after docking, be provided with first projection 10 around the both ends and second of portion 1 around the both ends of portion 2 at first ring.The first projection 10 has the first protuberance 11 and the second protuberance 12, the first protuberance 11 axially extends to the direction of the end face away from the first pipe fitting along the first pipe fitting, the second protuberance 12 extends radially outwardly along the first pipe fitting, wherein, stretches out to refer to the direction away from the first pipe fitting axis and extends.
In order to make the 3rd to clamp more securely the second pipe fitting around portion and Rao Bu both ends, Fourth Ring after docking, be provided with the second projection at the 3rd both ends around portion and Rao Bu both ends, Fourth Ring.The second projection has the 3rd protuberance and the 4th protuberance, the 3rd protuberance axially extends to the direction of the end face away from the second pipe fitting along the second pipe fitting, the 4th protuberance extends radially outwardly along the second pipe fitting, wherein, stretches out to refer to the direction away from the second pipe fitting axis and extends
The first protuberance 11 is connected and is structure as a whole with the second protuberance 12; The 3rd protuberance is connected and is structure as a whole with the 4th protuberance, so can strengthen respectively first ring around portion 1 and the second docking fixing around portion 2 both ends, the 3rd docking fixing around portion and Rao Bu both ends, Fourth Ring.
In actual applications, for easy to use, first ring is axially symmetric structure around portion 1 and second around portion 2, and first ring is identical around the structure of portion 2 with second around portion 1; The 3rd is axially symmetric structure around portion and Fourth Ring around portion, and the 3rd is identical around the structure of portion with Fourth Ring around portion.Preferably, first ring around portion 1, second around portion 2, the 3rd identical around the structure of portion with Fourth Ring around portion.In other words, by first ring in portion 1 and the second annular being connected to form around portion 2, first ring is around the half of portion's 1 looping, second around second half of 2 loopings, in by the 3rd annular being connected to form around portion around portion and Fourth Ring, the 3rd half around portion's looping, Fourth Ring is around second half of portion's looping, now, if whole butt connector is regarded as to the words of 4/4ths detachable Ha Fuka, the first clamping element is called 2/4ths detachable Ha Fuka, the second clamping element is also referred to as 2/4ths detachable Ha Fuka, be connected to form 4/4ths detachable Ha Fuka by the first clamping element and the second clamping element, first ring is around portion 1, second around portion 2, the 3rd is called 1/4th detachable Ha Fuka around portion and Fourth Ring around portion, be connected to form 2/4ths detachable Ha Fukas around portion 1 and second around portion 2 by first ring, be connected to form 2/4ths detachable Ha Fukas around portion and Fourth Ring around portion by the 3rd.
For the ease of installation and removal, the first clamping connecting portion and second clamps connecting portion and is bolt, on the first protuberance 11, the second protuberance 12, the 3rd protuberance and the 4th protuberance, be provided with bolt hole 14, for coordinating with bolt, so that first ring is connected around portion's docking with Fourth Ring around portion around portion 2, the 3rd with second around portion 1, wherein, circumferentially tangent (tangent line of the circumferential correspondence position of axial and the first pipe fitting or the second pipe fitting that essence is bolt hole is parallel) of axial and the first pipe fitting or second pipe fitting of this bolt hole.
For make the first clamping element with the second clamping element in the time being connected, the first clamping element can clamp the first pipe fitting securely, the second clamping element can clamp the second pipe fitting securely, and the first pipe fitting is circumferentially provided with groove along it, and first ring all embeds in groove around portion 2 around portion 1 and second; The second pipe fitting is circumferentially provided with groove along it, and the 3rd all embeds in groove around portion around portion and Fourth Ring.
First ring around portion 1 near a side of the first pipe fitting end face along the first pipe fitting be axially provided with concave station rank 13, first ring engages with groove by concave station rank around portion; Second is provided with concave station rank around portion and Fourth Ring around portion around portion, the 3rd, thereby makes the first clamping element further clamp securely the first pipe fitting, and the second clamping element further clamps the second pipe fitting securely.
Locking member is preferably bolt, be provided with bolt hole around portion and Fourth Ring around the interlude of portion around portion 2, the 3rd around portion 1, second at first ring, bolt respectively through the 3rd around portion or Fourth Ring the bolt hole in portion, first ring around portion 1 or the second around the bolt hole in portion 2, thereby be connected the wherein axial axial setting along the first pipe fitting or the second pipe fitting of this bolt hole around portion's locking around portion or second with first ring around portion around portion or Fourth Ring by the 3rd.
The utility model is connected to example with butt connector for the docking of two pipe fittings and is illustrated, and the section of two pipe fittings is circular, and in other embodiment, the section of two pipe fittings can be square other shapes such as grade.Certainly, the docking that the butt connector that the utility model provides can also be used for two excellent parts connects, be particularly useful for internal diameter and external diameter all the docking of the docking connection of two identical pipe fittings or identical two the excellent parts of diameter be connected, these two pipe fittings or two excellent parts can be conductor, non-conductor, metal or nonmetal.
In sum, the beneficial effect that this practical embodiment is brought is as follows:
The first pipe fitting is clamped in the side of the first pipe fitting by the first clamping element, the second clamping element clamps the second pipe fitting in the side of the second pipe fitting, and locking member is connected the first clamping element with the second clamping element, realized the end face of two pipe fittings directly contacted, and contact firm.The conduction material bar that is electroslag furnace at the first pipe fitting, when the second pipe fitting is the electrode contact copperhead of electroslag furnace, by this butt connector, realize conducting electricity and expected bar and electrode contact copperhead close contact, thereby avoided the generation of arcing accident, solved arcing accident potential, electroslag furnace cost of equipment maintenance and production smelting cost are greatly reduced, simultaneously easy accessibility, has reduced maintenance time of electroslag furnace equipment, has increased the rate of starting of electroslag furnace equipment.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not depart from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, and is not only.Allly within the scope of the utility model or in the change being equal in scope of the present utility model, be all included in the utility model.
Claims (10)
1. a butt connector of 4/4ths detachable Ha Fuka, connects for the end face docking that makes two pipe fittings, it is characterized in that, described butt connector comprises:
Be used for the first clamping element of the side that clamps the first pipe fitting to be docked;
Be used for the second clamping element of the side that clamps the second pipe fitting to be docked; And
Be used for connecting described the first clamping element and described the second clamping element, make the end face of described the first pipe fitting and the end face of described the second pipe fitting dock the locking member being connected.
2. butt connector according to claim 1, it is characterized in that, described the first clamping element comprises: first ring clamps connecting portion around portion, second around portion and first, described first ring is all connected with described the first pipe fitting along the circumferential of described the first pipe fitting around portion with described second around portion, and described first ring is connected a complete annular to form around and clamp described first pipe fitting with the described second both ends around portion by described the first clamping connecting portion docking around the both ends of portion;
Described the second clamping element comprises: the 3rd clamps connecting portion around portion, Fourth Ring around portion and second, the described the 3rd is all connected with described the second pipe fitting along the circumferential of described the second pipe fitting around portion with described Fourth Ring around portion, and described the 3rd both ends around portion are connected a complete annular to form around and to clamp described the second pipe fitting with Rao Bu both ends, described Fourth Ring by described the second clamping connecting portion docking.
3. butt connector according to claim 2, it is characterized in that, described first ring is first projection with the first protuberance and the second protuberance around portion and described second around the arbitrary described end in the both ends of portion, described the first protuberance extends axially along described the first pipe fitting, described the second protuberance extending radially outwardly along described the first pipe fitting;
The described the 3rd is second projection with the 3rd protuberance and the 4th protuberance around the arbitrary described end in portion and Rao Bu both ends, described Fourth Ring, described the 3rd protuberance extends axially along described the second pipe fitting, described the 4th protuberance extending radially outwardly along described the second pipe fitting.
4. butt connector according to claim 3, is characterized in that, described the first protuberance is connected with described the second protuberance, and is structure as a whole;
Described the 3rd protuberance is connected with described the 4th protuberance, and is structure as a whole.
5. butt connector according to claim 3, is characterized in that, described first ring is axially symmetric structure around portion and described second around portion, and described first ring is identical around the structure of portion with described second around portion;
The described the 3rd is axially symmetric structure around portion and described Fourth Ring around portion, and the described the 3rd is identical around the structure of portion with described Fourth Ring around portion.
6. butt connector according to claim 3, is characterized in that, described the first clamping connecting portion and described second clamps connecting portion and is bolt.
7. butt connector according to claim 2, is characterized in that, described the first pipe fitting is circumferentially provided with groove along it, and described first ring all embeds in described groove around portion around portion and described second;
Described the second pipe fitting is circumferentially provided with groove along it, and the described the 3rd all embeds in described groove around portion around portion and described Fourth Ring.
8. butt connector according to claim 7, it is characterized in that, described first ring around a side of the close described first pipe fitting end face of portion along described the first pipe fitting be axially provided with concave station rank, described first ring engages with described groove by described concave station rank around portion;
Described second is provided with described concave station rank around portion and described Fourth Ring around portion around portion, the described the 3rd.
9. butt connector according to claim 1, is characterized in that, described locking member is bolt.
10. butt connector according to claim 1, is characterized in that, the conduction material bar that described the first pipe fitting is electroslag furnace;
The electrode contact copperhead that described the second pipe fitting is described electroslag furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300742.1U CN203967259U (en) | 2014-06-06 | 2014-06-06 | The butt connector of 4/4ths detachable Ha Fuka |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420300742.1U CN203967259U (en) | 2014-06-06 | 2014-06-06 | The butt connector of 4/4ths detachable Ha Fuka |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203967259U true CN203967259U (en) | 2014-11-26 |
Family
ID=51927805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420300742.1U Expired - Lifetime CN203967259U (en) | 2014-06-06 | 2014-06-06 | The butt connector of 4/4ths detachable Ha Fuka |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203967259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078775A (en) * | 2014-06-06 | 2014-10-01 | 大冶特殊钢股份有限公司 | Butting connector capable of disassembling half card in four-quarter mode |
| CN108588331A (en) * | 2018-05-29 | 2018-09-28 | 大冶特殊钢股份有限公司 | A kind of feeding wire machine combination fabric wheel and preparation method thereof |
-
2014
- 2014-06-06 CN CN201420300742.1U patent/CN203967259U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104078775A (en) * | 2014-06-06 | 2014-10-01 | 大冶特殊钢股份有限公司 | Butting connector capable of disassembling half card in four-quarter mode |
| CN104078775B (en) * | 2014-06-06 | 2016-08-17 | 大冶特殊钢股份有限公司 | The butt connector of 4/4ths detachable Ha Fuka |
| CN108588331A (en) * | 2018-05-29 | 2018-09-28 | 大冶特殊钢股份有限公司 | A kind of feeding wire machine combination fabric wheel and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200415 Address after: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee after: Daye Special Steel Co.,Ltd. Address before: 435001 Huangshi Road, Hubei, Huangshi, No. 316 Patentee before: DAYE SPECIAL STEEL Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141126 |