CN102568738A - 高机械强度烧结钕铁硼永磁体的制造方法 - Google Patents
高机械强度烧结钕铁硼永磁体的制造方法 Download PDFInfo
- Publication number
- CN102568738A CN102568738A CN201210036913XA CN201210036913A CN102568738A CN 102568738 A CN102568738 A CN 102568738A CN 201210036913X A CN201210036913X A CN 201210036913XA CN 201210036913 A CN201210036913 A CN 201210036913A CN 102568738 A CN102568738 A CN 102568738A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- mechanical properties
- high mechanical
- blank
- magnetic
- 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.)
- Granted
Links
- 229910001172 neodymium magnet Inorganic materials 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 36
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 title abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 46
- 239000001257 hydrogen Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 46
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 43
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005245 sintering Methods 0.000 claims abstract description 36
- 239000010936 titanium Substances 0.000 claims abstract description 35
- 239000002994 raw material Substances 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims abstract description 27
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 26
- 238000005496 tempering Methods 0.000 claims abstract description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 19
- 239000010941 cobalt Substances 0.000 claims abstract description 19
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 19
- 239000000843 powder Substances 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 238000005303 weighing Methods 0.000 claims abstract description 17
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims abstract description 8
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910052796 boron Inorganic materials 0.000 claims description 34
- 238000005516 engineering process Methods 0.000 claims description 28
- 229910045601 alloy Inorganic materials 0.000 claims description 21
- 239000000956 alloy Substances 0.000 claims description 21
- 238000013459 approach Methods 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 20
- 229920006395 saturated elastomer Polymers 0.000 claims description 18
- 238000005554 pickling Methods 0.000 claims description 17
- 238000005520 cutting process Methods 0.000 claims description 16
- 238000009413 insulation Methods 0.000 claims description 16
- 238000002360 preparation method Methods 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 229910052779 Neodymium Inorganic materials 0.000 claims description 12
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 10
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 10
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 9
- 229910017604 nitric acid Inorganic materials 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 5
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 5
- 150000002431 hydrogen Chemical class 0.000 abstract description 3
- 239000006247 magnetic powder Substances 0.000 abstract 2
- 229910000640 Fe alloy Inorganic materials 0.000 abstract 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 238000009738 saturating Methods 0.000 abstract 1
- 238000009991 scouring Methods 0.000 abstract 1
- 239000012856 weighed raw material Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 14
- 238000012360 testing method Methods 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 229910000765 intermetallic Inorganic materials 0.000 description 7
- 238000005498 polishing Methods 0.000 description 6
- 229910052688 Gadolinium Inorganic materials 0.000 description 4
- 229910052689 Holmium Inorganic materials 0.000 description 4
- RKLPWYXSIBFAJB-UHFFFAOYSA-N [Nd].[Pr] Chemical compound [Nd].[Pr] RKLPWYXSIBFAJB-UHFFFAOYSA-N 0.000 description 4
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 4
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- 229910052692 Dysprosium Inorganic materials 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 2
- 229910052746 lanthanum Inorganic materials 0.000 description 2
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006253 efflorescence Methods 0.000 description 1
- 238000002595 magnetic resonance imaging Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000013001 point bending Methods 0.000 description 1
- 206010037844 rash Diseases 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
Landscapes
- Hard Magnetic Materials (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
Description
Claims (9)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210036913XA CN102568738B (zh) | 2012-02-18 | 2012-02-18 | 高机械强度烧结钕铁硼永磁体的制造方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210036913XA CN102568738B (zh) | 2012-02-18 | 2012-02-18 | 高机械强度烧结钕铁硼永磁体的制造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN102568738A true CN102568738A (zh) | 2012-07-11 |
CN102568738B CN102568738B (zh) | 2013-12-04 |
Family
ID=46413921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201210036913XA Active CN102568738B (zh) | 2012-02-18 | 2012-02-18 | 高机械强度烧结钕铁硼永磁体的制造方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN102568738B (zh) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102699294A (zh) * | 2012-06-12 | 2012-10-03 | 钢铁研究总院 | 电磁凝固Nd-Fe-B永磁速凝片及制备方法 |
CN102886523A (zh) * | 2012-11-01 | 2013-01-23 | 山西京宇天成科技有限公司 | 一种钕铁硼不饱和吸氢工艺方法 |
CN102930975A (zh) * | 2012-10-24 | 2013-02-13 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
CN105206371A (zh) * | 2015-10-13 | 2015-12-30 | 南通长江电器实业有限公司 | 一种低成本高矫顽力稀土永磁材料 |
CN105741994A (zh) * | 2016-02-04 | 2016-07-06 | 李忠 | 一种钕铁硼磁体的制作方法 |
CN106683814A (zh) * | 2016-12-09 | 2017-05-17 | 京磁材料科技股份有限公司 | 钕铁硼磁体粉末的制备方法 |
CN106783131A (zh) * | 2016-12-23 | 2017-05-31 | 宁波韵升股份有限公司 | 一种烧结钕铁硼薄片磁体的制备方法 |
CN109157096A (zh) * | 2018-09-07 | 2019-01-08 | 宋东 | 一种磁性钉子及其制作工艺 |
CN109273241A (zh) * | 2018-11-08 | 2019-01-25 | 浙江嘉兴南湖电子器材集团有限公司 | 一种高机械强度永磁体烧结工艺 |
CN110170895A (zh) * | 2019-05-29 | 2019-08-27 | 浙江鑫盛永磁科技有限公司 | 便于打磨的钕铁硼加工工艺 |
CN111863376A (zh) * | 2020-08-18 | 2020-10-30 | 东阳市瑟达磁业有限公司 | 一种不易破损的钕铁硼磁体及其制备方法 |
CN113005440A (zh) * | 2020-12-30 | 2021-06-22 | 昆明狴犴人力资源服务有限公司 | 一种钕铁硼永磁铁表面镀层及其制备方法 |
WO2022007051A1 (zh) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | 破碎系统 |
CN115812106A (zh) * | 2020-07-14 | 2023-03-17 | 杰富意钢铁株式会社 | 脱氢装置和钢板的制造系统以及钢板的制造方法 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020112785A1 (en) * | 2000-08-03 | 2002-08-22 | Shigenobu Sekine | High energy nanocomposite permanent magnet |
JP2003217918A (ja) * | 2002-01-25 | 2003-07-31 | Hitachi Metals Ltd | 着磁性に優れた希土類焼結磁石用合金粉末、希土類焼結磁石およびその製造方法 |
CN1843668A (zh) * | 2006-04-25 | 2006-10-11 | 中国人民解放军国防科学技术大学 | 一种高韧性烧结稀土铁硼基永磁材料及其制备方法 |
CN1934283A (zh) * | 2004-06-22 | 2007-03-21 | 信越化学工业株式会社 | R-Fe-B基稀土永磁体材料 |
JP2007165534A (ja) * | 2005-12-13 | 2007-06-28 | Jfe Steel Kk | 薄型希土類磁石 |
CN101154489A (zh) * | 2007-08-31 | 2008-04-02 | 钢铁研究总院 | 抗冲击铁基稀土永磁体及其制备方法 |
CN102039407A (zh) * | 2009-10-14 | 2011-05-04 | 三环瓦克华(北京)磁性器件有限公司 | 减少烧结钕铁硼磁体烧结过程中的有害气体的方法 |
-
2012
- 2012-02-18 CN CN201210036913XA patent/CN102568738B/zh active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20020112785A1 (en) * | 2000-08-03 | 2002-08-22 | Shigenobu Sekine | High energy nanocomposite permanent magnet |
JP2003217918A (ja) * | 2002-01-25 | 2003-07-31 | Hitachi Metals Ltd | 着磁性に優れた希土類焼結磁石用合金粉末、希土類焼結磁石およびその製造方法 |
CN1934283A (zh) * | 2004-06-22 | 2007-03-21 | 信越化学工业株式会社 | R-Fe-B基稀土永磁体材料 |
JP2007165534A (ja) * | 2005-12-13 | 2007-06-28 | Jfe Steel Kk | 薄型希土類磁石 |
CN1843668A (zh) * | 2006-04-25 | 2006-10-11 | 中国人民解放军国防科学技术大学 | 一种高韧性烧结稀土铁硼基永磁材料及其制备方法 |
CN101154489A (zh) * | 2007-08-31 | 2008-04-02 | 钢铁研究总院 | 抗冲击铁基稀土永磁体及其制备方法 |
CN102039407A (zh) * | 2009-10-14 | 2011-05-04 | 三环瓦克华(北京)磁性器件有限公司 | 减少烧结钕铁硼磁体烧结过程中的有害气体的方法 |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102699294B (zh) * | 2012-06-12 | 2013-12-25 | 钢铁研究总院 | 电磁凝固Nd-Fe-B永磁速凝片及制备方法 |
CN102699294A (zh) * | 2012-06-12 | 2012-10-03 | 钢铁研究总院 | 电磁凝固Nd-Fe-B永磁速凝片及制备方法 |
CN102930975A (zh) * | 2012-10-24 | 2013-02-13 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
CN102930975B (zh) * | 2012-10-24 | 2016-04-13 | 烟台正海磁性材料股份有限公司 | 一种R-Fe-B系烧结磁体的制备方法 |
CN102886523A (zh) * | 2012-11-01 | 2013-01-23 | 山西京宇天成科技有限公司 | 一种钕铁硼不饱和吸氢工艺方法 |
CN105206371A (zh) * | 2015-10-13 | 2015-12-30 | 南通长江电器实业有限公司 | 一种低成本高矫顽力稀土永磁材料 |
CN105741994B (zh) * | 2016-02-04 | 2017-09-01 | 李忠 | 一种钕铁硼磁体的制作方法 |
CN105741994A (zh) * | 2016-02-04 | 2016-07-06 | 李忠 | 一种钕铁硼磁体的制作方法 |
CN106683814B (zh) * | 2016-12-09 | 2018-11-20 | 京磁材料科技股份有限公司 | 钕铁硼磁体粉末的制备方法 |
CN106683814A (zh) * | 2016-12-09 | 2017-05-17 | 京磁材料科技股份有限公司 | 钕铁硼磁体粉末的制备方法 |
CN106783131A (zh) * | 2016-12-23 | 2017-05-31 | 宁波韵升股份有限公司 | 一种烧结钕铁硼薄片磁体的制备方法 |
CN106783131B (zh) * | 2016-12-23 | 2019-03-26 | 宁波韵升股份有限公司 | 一种烧结钕铁硼薄片磁体的制备方法 |
CN109157096A (zh) * | 2018-09-07 | 2019-01-08 | 宋东 | 一种磁性钉子及其制作工艺 |
CN109273241A (zh) * | 2018-11-08 | 2019-01-25 | 浙江嘉兴南湖电子器材集团有限公司 | 一种高机械强度永磁体烧结工艺 |
CN110170895A (zh) * | 2019-05-29 | 2019-08-27 | 浙江鑫盛永磁科技有限公司 | 便于打磨的钕铁硼加工工艺 |
CN110170895B (zh) * | 2019-05-29 | 2021-05-04 | 浙江鑫盛永磁科技有限公司 | 便于打磨的钕铁硼加工工艺 |
WO2022007051A1 (zh) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | 破碎系统 |
CN115812106A (zh) * | 2020-07-14 | 2023-03-17 | 杰富意钢铁株式会社 | 脱氢装置和钢板的制造系统以及钢板的制造方法 |
CN111863376A (zh) * | 2020-08-18 | 2020-10-30 | 东阳市瑟达磁业有限公司 | 一种不易破损的钕铁硼磁体及其制备方法 |
CN113005440A (zh) * | 2020-12-30 | 2021-06-22 | 昆明狴犴人力资源服务有限公司 | 一种钕铁硼永磁铁表面镀层及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
CN102568738B (zh) | 2013-12-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN102568738B (zh) | 高机械强度烧结钕铁硼永磁体的制造方法 | |
CN102220538B (zh) | 一种提高内禀矫顽力和耐腐蚀性能的烧结钕铁硼制备方法 | |
CN102280240B (zh) | 一种低镝含量高性能烧结钕铁硼的制备方法 | |
CN103710603B (zh) | 无磁梯度结构Ti(C,N)基金属陶瓷及其制备方法 | |
CN103824668A (zh) | 一种低重稀土高矫顽力烧结钕铁硼磁体及其制备方法 | |
CN111341512B (zh) | 一种高性价比稀土永磁体及制备方法 | |
CN105321702A (zh) | 一种提高烧结NdFeB磁体矫顽力的方法 | |
CN110136946B (zh) | 一种耐腐蚀的钕铁硼磁体的制备方法 | |
CN110444388B (zh) | 一种强韧性高稳定性钕铁硼磁体的制备方法 | |
CN104681268A (zh) | 一种提高烧结钕铁硼磁体矫顽力的处理方法 | |
CN104821218A (zh) | 一种锌铝钛钴复合添加的烧结钕铁硼磁体及其制备方法 | |
CN109576546B (zh) | 一种高强韧性无磁Ti(C,N)基金属陶瓷的制备方法 | |
CN102039410B (zh) | 能提高烧结钕铁硼磁体的矫顽力的烧结时效工艺 | |
CN103187168A (zh) | 一种超强耐腐蚀性钕铁硼磁体的制备方法 | |
CN104464997A (zh) | 一种高矫顽力钕铁硼永磁材料及其制备方法 | |
CN111952032B (zh) | 一种低硼低重稀土高矫顽力烧结钕铁硼系永磁体的制备方法 | |
CN109509628B (zh) | 一种烧结钕铁硼复合粉料的制备方法 | |
CN109545491B (zh) | 一种钕铁硼永磁材料及其制备方法 | |
CN112086255A (zh) | 一种高矫顽力、耐高温烧结钕铁硼磁体及其制备方法 | |
CN115472371B (zh) | 一种烧结钕铁硼的加工方法 | |
CN111210962A (zh) | 一种含SmFeN或SmFeC的烧结钕铁硼及其制备方法 | |
CN114210976B (zh) | 一种烧结钕铁硼双合金结合晶界扩散的方法 | |
CN102208238B (zh) | 一种无钕无铽高矫顽力烧结稀土永磁体及其制备方法 | |
CN111696742B (zh) | 一种无重稀土高性能钕铁硼永磁材料及其制备方法 | |
CN112908674A (zh) | 一种稀土永磁体的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: 710065 No. five, No. 18, hi tech Zone, Shaanxi, Xi'an Applicant after: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Address before: 710065 No. five, No. 18, hi tech Zone, Shaanxi, Xi'an Applicant before: SIQIANG TECHNOLOGY Co.,Ltd. |
|
COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: XI'AN SIQIANG TECHNOLOGY LIMITED CORP. NWPU TO: XI'AN XIGONGDA SIQIANG TECHNOLOGY CO., LTD. |
|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of high-mechanical-strength sintered neodymium iron boron permanent magnets Effective date of registration: 20140819 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2014990000671 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20150924 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2014990000671 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of high-mechanical-strength sintered neodymium iron boron permanent magnets Effective date of registration: 20150928 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2015990000832 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161125 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2015990000832 |
|
PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Manufacturing method of high-mechanical-strength sintered neodymium iron boron permanent magnets Effective date of registration: 20170706 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2017990000603 |
|
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: 20180814 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2017990000603 |
|
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: Manufacturing method of high-mechanical-strength sintered neodymium iron boron permanent magnets Effective date of registration: 20180927 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2018990000893 |
|
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: 20190911 Granted publication date: 20131204 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: 2018990000893 |
|
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: Manufacturing Method of High Mechanical Strength Sintered Neodymium Iron Boron Permanent Magnets Effective date of registration: 20230927 Granted publication date: 20131204 Pledgee: Bank of China Limited Xi'an High tech Development Zone Sub branch Pledgor: XI'AN XIGONGDA SIQIANG TECHNOLOGY Co.,Ltd. Registration number: Y2023980059733 |
|
PE01 | Entry into force of the registration of the contract for pledge of patent right |