CN107217170B - A kind of high temperature resistant gold copper cable - Google Patents
A kind of high temperature resistant gold copper cable Download PDFInfo
- Publication number
- CN107217170B CN107217170B CN201710391048.3A CN201710391048A CN107217170B CN 107217170 B CN107217170 B CN 107217170B CN 201710391048 A CN201710391048 A CN 201710391048A CN 107217170 B CN107217170 B CN 107217170B
- Authority
- CN
- China
- Prior art keywords
- alloy
- gold copper
- high temperature
- copper cable
- temperature resistant
- 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.)
- Active
Links
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 41
- 239000000956 alloy Substances 0.000 claims abstract description 41
- 239000010949 copper Substances 0.000 claims abstract description 22
- 238000002844 melting Methods 0.000 claims abstract description 13
- 230000008018 melting Effects 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 9
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005097 cold rolling Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- -1 heating melting Substances 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 229910052804 chromium Inorganic materials 0.000 abstract description 8
- 229910052697 platinum Inorganic materials 0.000 abstract description 8
- 229910052703 rhodium Inorganic materials 0.000 abstract description 8
- 239000010931 gold Substances 0.000 abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 7
- 229910052721 tungsten Inorganic materials 0.000 abstract description 7
- 229910052725 zinc Inorganic materials 0.000 abstract description 7
- 238000005275 alloying Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 229910000881 Cu alloy Inorganic materials 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C9/00—Alloys based on copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/026—Alloys based on copper
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Conductive Materials (AREA)
- Insulated Conductors (AREA)
Abstract
The present invention provides a kind of high temperature resistant gold copper cables, are related to field of cables；Cable core is made of the element of following weight percent: Au 0.16-0.29%, Cr 0.22-0.35%, Co 0.18-0.26%, W 0.25-0.32%, Mo 0.12-0.16%, Zn 0.06-0.11%, Pt 0.13-0.15%, Rh 0.16-0.21%, remaining is Cu and inevitable impurity；In preparation method, raw material is mixed first, is suppressed, is made alloy preform, the binding force between alloy can be enhanced, while advantageously reducing subsequent melt temperature, melting speed is accelerated, keeps alloying component distribution more uniform.
Description
Technical field
The present invention relates to field of cables, and in particular to a kind of high temperature resistant gold copper cable.
Background technique
Copper and its alloy because having good conductive property, heating conduction, anti-fatigue performance, chemical stability and intensity and
The features such as easily fabricated, has had a wide range of applications in industries such as electric power, machinery, electronics, traffic and the energy, has become important electricity
Sub- metal material.With the economic fast development with science and technology, to contact Wire for High-Speed Electric Railway, large-scale integrated
More stringent requirements are proposed for copper alloy with high strength and high conductivity performance used in the fields such as wire feed throughs frame and electrode material.However, by
In copper alloy itself physical characteristic and cause to be difficult to combine its heat-resisting quantity and electric conductivity, be finally difficult obtain high temperature resistant
The all good copper alloy with electric conductivity.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of high temperature resistant gold copper cables, so that alloy cable exists
While with high conductivity, there is preferable heat-resisting quantity.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of high temperature resistant gold copper cable, cable core are made of the element of following weight percent: Au 0.16-
0.29%, Cr 0.22-0.35%, Co 0.18-0.26%, W 0.25-0.32%, Mo 0.12-0.16%, Zn 0.06-
0.11%, Pt 0.13-0.15%, Rh 0.16-0.21%, remaining is Cu and inevitable impurity.
Preferably, cable core is made of the element of following weight percent: Au 0.21%, Cr 0.25%, Co
0.22%, W 0.28%, Mo 0.14%, Zn 0.08%, Pt 0.13%, Rh 0.21%, remaining is for copper and inevitably
Impurity.
A kind of preparation method of high temperature resistant gold copper cable, comprising the following steps: (1) weigh other originals in addition to Cu
Material is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) by bulk made from step (1)
Prealloy puts into heating melting in vacuum drying oven, and heat preservation obtains prealloy liquid；(3) Cu is added in prealloy liquid, heating is molten
Melt, alloy mixed liquor is made；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig in 680-720
8-10h is kept the temperature under the conditions of DEG C, carries out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 4-5h at 500-550 DEG C,
Gold copper cable core is made；(7) gold copper cable is made in cable core winding, package insulation sleeve.
Preferably, vacuum drying oven heating temperature is 1450-1500 DEG C in the step (2), soaking time 55-60min.
(3) beneficial effect
The present invention provides a kind of high temperature resistant gold copper cables, by the way that Au, W, Pt, Rh element are added in the alloy, both
It ensure that the electric conductivity of alloy, and make alloy that there is high temperature resistance, the addition of Cr and Co guarantee that alloy still has at high temperature
There is certain intensity, avoids leading to strength reduction because of high temperature；In preparation method, raw material is mixed first, suppresses, makes alloy
It is preforming, the binding force between alloy can be enhanced, while advantageously reducing subsequent melt temperature, accelerates melting speed, make alloy
Component distributing is more uniform.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making
Every other embodiment obtained, shall fall within the protection scope of the present invention under the premise of creative work.
Embodiment 1:
A kind of high temperature resistant gold copper cable, cable core are made of the element of following weight percent: Au 0.21%, Cr
0.25%, Co 0.22%, W 0.28%, Mo 0.14%, Zn 0.08%, Pt 0.13%, Rh 0.21%, remaining for Cu and
Inevitable impurity.
The preparation method of the high temperature resistant gold copper cable, comprising the following steps: (1) weigh other originals in addition to Cu
Material is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) by bulk made from step (1)
Prealloy puts into heating melting in 1450 DEG C of vacuum drying ovens, keeps the temperature 60min, obtains prealloy liquid；(3) Cu is added to prealloy liquid
In, alloy mixed liquor is made in heating melting；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig
9h is kept the temperature under the conditions of 700 DEG C, carries out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 4h at 500 DEG C, be made
Gold copper cable core；(7) gold copper cable is made in cable core winding, package insulation sleeve.
Embodiment 2:
A kind of high temperature resistant gold copper cable, cable core are made of the element of following weight percent: Au 0.29%, Cr
0.28%, Co 0.18%, W 0.25%, Mo 0.16%, Zn 0.09%, Pt 0.15%, Rh 0.18%, remaining for Cu and
Inevitable impurity.
The preparation method of the high temperature resistant gold copper cable, comprising the following steps: (1) weigh other originals in addition to Cu
Material is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) by bulk made from step (1)
Prealloy puts into heating melting in 1470 DEG C of vacuum drying ovens, keeps the temperature 55min, obtains prealloy liquid；(3) Cu is added to prealloy liquid
In, alloy mixed liquor is made in heating melting；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig
10h is kept the temperature under the conditions of 720 DEG C, carries out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 5h at 520 DEG C, be made
Gold copper cable core；(7) gold copper cable is made in cable core winding, package insulation sleeve.
Embodiment 3:
A kind of high temperature resistant gold copper cable, cable core are made of the element of following weight percent: Au 0.16%, Cr
0.22%, Co 0.20%, W 0.32%, Mo 0.12%, Zn 0.11%, Pt 0.14%, Rh 0.20%, remaining for Cu and
Inevitable impurity.
The preparation method of the high temperature resistant gold copper cable, comprising the following steps: (1) weigh other originals in addition to Cu
Material is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) by bulk made from step (1)
Prealloy puts into heating melting in 1480 DEG C of vacuum drying ovens, keeps the temperature 60min, obtains prealloy liquid；(3) Cu is added to prealloy liquid
In, alloy mixed liquor is made in heating melting；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig
9h is kept the temperature under the conditions of 700 DEG C, carries out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 4h at 530 DEG C, be made
Gold copper cable core；(7) gold copper cable is made in cable core winding, package insulation sleeve.
Embodiment 4:
A kind of high temperature resistant gold copper cable, cable core are made of the element of following weight percent: Au 0.25%, Cr
0.35%, Co 0.26%, W 0.30%, Mo 0.15%, Zn 0.06%, Pt 0.13%, Rh 0.16%, remaining for Cu and
Inevitable impurity.
The preparation method of the high temperature resistant gold copper cable, comprising the following steps: (1) weigh other originals in addition to Cu
Material is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) by bulk made from step (1)
Prealloy puts into heating melting in 1500 DEG C of vacuum drying ovens, keeps the temperature 55min, obtains prealloy liquid；(3) Cu is added to prealloy liquid
In, alloy mixed liquor is made in heating melting；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig
8h is kept the temperature under the conditions of 680 DEG C, carries out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 5h at 550 DEG C, be made
Gold copper cable core；(7) gold copper cable is made in cable core winding, package insulation sleeve.
In order to embody gold copper cable heat-resisting quantity prepared by the present invention, by the Jin Tonghe of various embodiments of the present invention preparation
Golden cable and existing copper alloy cable have done data comparison, as a result as follows:
As seen from the above table, compared with existing copper alloy cable, gold copper cable prepared by the present invention is other each in guarantee
Under the premise of item index is similar, high temperature resistance has obtained larger raising.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, the spirit and scope for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.
Claims (2)
1. a kind of high temperature resistant gold copper cable, which is characterized in that cable core is made of the element of following weight percent:
Au0.16-0.29%, Cr0.22-0.35%, Co0.18-0.26%, W0.25-0.32%, Mo0.12-0.16%, Zn0.06-
0.11%, Pt0.13-0.15%, Rh0.16-0.21%, remaining is Cu and inevitable impurity；
The high temperature resistant gold copper cable, preparation method the following steps are included: (1) weighs other raw materials in addition to Cu,
It is put into high speed ball mill and is uniformly mixed, mixture is pressed into bulk with molding machine；(2) bulk made from step (1) is pre-
Heating melting in ladle refining vacuum drying oven, heat preservation obtain prealloy liquid；(3) Cu is added in prealloy liquid, heating melting,
Alloy mixed liquor is made；(4) alloy mixed liquor is poured into mold, alloy pig is made；(5) by alloy pig at 680-720 DEG C
Under the conditions of keep the temperature 8-10h, carry out cold rolling after natural cooling；(6) alloy after cold rolling is kept the temperature into 4-5h at 500-550 DEG C, made
Obtain gold copper cable core；(7) gold copper cable is made in cable core winding, package insulation sleeve；
Vacuum drying oven heating temperature is 1450-1500 DEG C in the step (2), soaking time 55-60min.
2. high temperature resistant gold copper cable as described in claim 1, which is characterized in that cable core is by following weight percent
Element composition: Au0.21%, Cr0.25%, Co0.22%, W0.28%, Mo0.14%, Zn0.08%, Pt0.13%,
Rh0.21%, remaining is copper and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391048.3A CN107217170B (en) | 2017-05-27 | 2017-05-27 | A kind of high temperature resistant gold copper cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710391048.3A CN107217170B (en) | 2017-05-27 | 2017-05-27 | A kind of high temperature resistant gold copper cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107217170A CN107217170A (en) | 2017-09-29 |
| CN107217170B true CN107217170B (en) | 2019-08-13 |
Family
ID=59947714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710391048.3A Active CN107217170B (en) | 2017-05-27 | 2017-05-27 | A kind of high temperature resistant gold copper cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107217170B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109754942A (en) * | 2019-01-16 | 2019-05-14 | 京仪股份有限公司 | A kind of high temperature resistant gold copper cable and its manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324284A (en) * | 2011-09-13 | 2012-01-18 | 无锡市嘉邦电力管道厂 | A kind of method of manufactured copper alloy cable |
| CN102324261A (en) * | 2011-09-13 | 2012-01-18 | 无锡市嘉邦电力管道厂 | Copper alloy cable |
| CN104060120A (en) * | 2014-07-03 | 2014-09-24 | 兰宝琴 | Method for preparing high-strength copper alloy wire rods |
| CN104361921A (en) * | 2014-11-28 | 2015-02-18 | 彭伟成 | Copper alloy single-core cable and manufacturing method thereof |
| CN106282645A (en) * | 2016-08-10 | 2017-01-04 | 安徽晋源铜业有限公司 | A kind of high strength and high conductivity copper alloy and processing method thereof |
-
2017
- 2017-05-27 CN CN201710391048.3A patent/CN107217170B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324284A (en) * | 2011-09-13 | 2012-01-18 | 无锡市嘉邦电力管道厂 | A kind of method of manufactured copper alloy cable |
| CN102324261A (en) * | 2011-09-13 | 2012-01-18 | 无锡市嘉邦电力管道厂 | Copper alloy cable |
| CN104060120A (en) * | 2014-07-03 | 2014-09-24 | 兰宝琴 | Method for preparing high-strength copper alloy wire rods |
| CN104361921A (en) * | 2014-11-28 | 2015-02-18 | 彭伟成 | Copper alloy single-core cable and manufacturing method thereof |
| CN106282645A (en) * | 2016-08-10 | 2017-01-04 | 安徽晋源铜业有限公司 | A kind of high strength and high conductivity copper alloy and processing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107217170A (en) | 2017-09-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104894438B (en) | A kind of high conductivity heat-resisting aluminium alloy monofilament material and preparation method thereof | |
| CN105088010B (en) | A kind of high-strength highly-conductive rare earth copper zirconium alloy and preparation method thereof | |
| CN102903415B (en) | A kind of special-shaped oxidation-resistant high-conductivity aluminum alloy carbon fiber lead wire and manufacture method | |
| CN105087981B (en) | Preparation method for welding-resistant ablation-resistant Cu-nano Al2O3 Cr contact material | |
| CN102719699A (en) | Novel high-elasticity low beryllium copper alloy and preparation method thereof | |
| CN109811182A (en) | A kind of aerospace high-intensitive, high conductivity copper alloy stranded conductor and preparation method thereof | |
| CN109722560B (en) | ZrC reinforced Cu-Fe-based composite material and preparation method thereof | |
| CN101709401B (en) | Cu-Cr in-situ composite with boron, silver and rare earth elements added and preparation method thereof | |
| CN107794402A (en) | A kind of preparation method of copper alloy with high strength and high conductivity wire rod | |
| CN107217170B (en) | A kind of high temperature resistant gold copper cable | |
| CN107419131A (en) | A kind of Cu-base composites for locomotive conductive parts and preparation method thereof | |
| CN105936983B (en) | A kind of copper alloy with high strength and high conductivity material | |
| CN104911408A (en) | Hard aluminum conductor filament and preparation method thereof | |
| CN102345033A (en) | Rare-earth-containing microalloy enhanced copper alloy for motor rotor and preparation method thereof | |
| CN112609104B (en) | Semi-continuous metal casting process of heat-resistant copper alloy and application thereof | |
| CN102041407B (en) | High-strength high-conductivity micro-boron copper alloy material and preparation method thereof | |
| CN113308622B (en) | High-strength high-conductivity copper-nickel-silicon alloy material and preparation method thereof | |
| CN102086492B (en) | Brass alloy for copper bar and manufacturing process thereof | |
| CN105908023A (en) | Aluminum alloy conductor material and preparation method thereof | |
| CN103146953A (en) | 185-DEG C lead-free low-temperature alloy for fuse burned-out core and preparation method thereof | |
| CN107858551B (en) | High-strength high-conductivity wear-resistant nontoxic copper alloy for resistance welding electrode and preparation method thereof | |
| CN110004322B (en) | Copper-based microcrystalline alloy, preparation method thereof and electronic product | |
| CN106834784A (en) | A kind of high-conductivity copper alloy wire of element containing praseodymium and preparation method thereof | |
| CN102876915A (en) | High-conductivity copper alloy material and preparation method thereof | |
| CN104264006A (en) | Low-resistance aluminium-alloy conductor and preparation method thereof |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A high temperature resistant gold copper alloy cable Effective date of registration: 20210823 Granted publication date: 20190813 Pledgee: Tianchang Science and Technology Financing Guarantee Co.,Ltd. Pledgor: JINGYI SHARES Co.,Ltd. Registration number: Y2021980008093 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220818 Granted publication date: 20190813 Pledgee: Tianchang Science and Technology Financing Guarantee Co.,Ltd. Pledgor: JINGYI SHARES CO.,LTD. Registration number: Y2021980008093 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A kind of high temperature resistant gold-copper alloy cable Effective date of registration: 20220822 Granted publication date: 20190813 Pledgee: Tianchang Science and Technology Financing Guarantee Co.,Ltd. Pledgor: JINGYI SHARES CO.,LTD. Registration number: Y2022980013118 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230810 Granted publication date: 20190813 Pledgee: Tianchang Science and Technology Financing Guarantee Co.,Ltd. Pledgor: JINGYI SHARES CO.,LTD. Registration number: Y2022980013118 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Tongjun Inventor after: Xu Guofu Inventor after: Yu Wenwu Inventor before: Zhang Yinjiu Inventor before: Zhang Tongjun Inventor before: Zhang Tongji Inventor before: Xu Guofu Inventor before: Yu Wenwu |
|
| CB03 | Change of inventor or designer information |