[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN103555991B - A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof - Google Patents

A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof Download PDF

Info

Publication number
CN103555991B
CN103555991B CN201310589435.XA CN201310589435A CN103555991B CN 103555991 B CN103555991 B CN 103555991B CN 201310589435 A CN201310589435 A CN 201310589435A CN 103555991 B CN103555991 B CN 103555991B
Authority
CN
China
Prior art keywords
alloy pipe
copper
base alloy
leadless environment
friendly
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
Application number
CN201310589435.XA
Other languages
Chinese (zh)
Other versions
CN103555991A (en
Inventor
陆海荣
孙飞
赵勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SUZHOU JINCANG ALLOY NEW-MATERIAL CO LTD
Suzhou Tianqian New Material Science & Technology Co ltd
Original Assignee
SUZHOU TIANJIAN METAL NEW-MATERIAL Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUZHOU TIANJIAN METAL NEW-MATERIAL Co Ltd filed Critical SUZHOU TIANJIAN METAL NEW-MATERIAL Co Ltd
Priority to CN201310589435.XA priority Critical patent/CN103555991B/en
Publication of CN103555991A publication Critical patent/CN103555991A/en
Application granted granted Critical
Publication of CN103555991B publication Critical patent/CN103555991B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

The invention provides a kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof, leadless environment-friendly copper-base alloy pipe of the present invention is made up of the component of following weight percentage: zinc 1% ~ 7%, tin 0.5% ~ 7%, silicon 0.5% ~ 6%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, surplus is copper.The present invention adopts the production technique of continuous casting and rolling, eliminates billet process and annealing pressing steps in traditional processing technology, shortens the production cycle, improve production efficiency, greatly reduce production cost.Alloy pipe of the present invention adopts the lead element in element silicon replacement traditional copper alloy; not leaded; avoid the environmental pollution that the use due to lead brings, be conducive to environment protection, leadless environment-friendly copper-base alloy pipe provided by the invention can replace the tinbronze tubing containing lead element completely.

Description

A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof
Technical field
The present invention relates to compo pipe production field, particularly relate to a kind of leadless environment-friendly copper-base alloy pipe, and the manufacture method of this compo pipe.
Background technology
Existing tinbronze material often adds lead element to realize its easy chip performance, leaded tinbronze has higher wear resistance and good workability, fine weldering and good welding performance, mainly for the manufacture of bearing the part of friction in navigate empty ﹑ automobile and other industrial sectors and carrying out necessary welding.But due to the characteristic of lead, when carrying out hot-work, very easily produce red brittleness, therefore cold working can only be carried out, reduce the workability of compo pipe, and lead has very large harm to environment, along with significantly improving of environmental consciousness, the bell metal containing lead element can not meet the requirement of domestic and international high-end market.
Summary of the invention
For solving the problems of the technologies described above, the object of this invention is to provide one not leaded, the environmental protection copper-base alloy pipe that workability is strong, and the manufacture method of this compo pipe.
For achieving the above object, the technical solution adopted in the present invention is as follows:
A kind of leadless environment-friendly copper-base alloy pipe, be made up of the component of following weight percentage: zinc 1% ~ 7%, tin 0.5% ~ 7%, silicon 0.5% ~ 6%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc 2% ~ 6%, tin 1.5% ~ 6%, silicon 1% ~ 5%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, and surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc 3% ~ 5%, tin 2.5% ~ 5%, silicon 2% ~ 4%, phosphorus 0.05% ~ 0.25%, manganese 0.01% ~ 0.15%, and surplus is copper.
Further, the weight percentage proportioning of each component is as follows: zinc: 4.5%, tin: 4%, silicon: 3%, phosphorus: 0.2%, manganese: 0.08%, and surplus is copper.
Further, the manufacture method of described leadless environment-friendly copper-base alloy pipe, comprises following steps:
1) according to proportioning, Tong ﹑ phosphorus, Xi ﹑ Xin ﹑ Gui ﹑ manganese is placed in main frequency furnace, be heated to 1250 DEG C ~ 1300 DEG C completely fusing after, be cooled to 1200 DEG C.
2), after the alloy liquid melted completely fully being stirred, cover high purity flaky graphite powder in the above and be oxidized to prevent it, and be incubated.
3) 1200 DEG C of insulations are after 1.2 ~ 1.5 hours, in electric furnace, take out sample, adopt direct-reading spectrometer to carry out three to five composition inspections, to determine that its alloying constituent is within specialized range to sample.
4) after being incubated 40 ~ 60 minutes further, be again warming up to 1300 DEG C, and open the vibrating device of main frequency furnace, adopt the method for continuous casting and rolling to produce alloy pipe.
5) with box-annealing furnace, anneal is carried out to copper pipe.
6) the alloy pipe ultrasonic reflectoscope alloy pipe after having annealed is carried out slight crack and pore flaw detection, melt down to choose substandard product.
Further, step 2) described in stir adopt graphite rod.
Further, step 2) described in the thickness of Graphite Powder 99 be 11 ~ 13cm.
Further, step 4) described in the vibrational frequency of vibrating device of main frequency furnace be 1 time/second.
Further, step 4) described in the external diameter of alloy pipe be Φ 55mm, internal diameter is Φ 10mm, and length is 4000mm.
Further, step 5) described in the annealing temperature of anneal be 200 ~ 300 DEG C, annealing time is 20 ~ 30 minutes.
Adopt above technical scheme, traditional lead element is replaced with element silicon by the present invention, according to the composition proportion that zinc, tin, silicon, phosphorus, manganese, copper are certain, suitable temperature, completed the production of alloy pipe by the production technique of continuous casting and rolling, the tin bronze alloys tubing containing lead element can be replaced completely.And the present invention adopts the production technique of continuous casting and rolling, eliminate the billet process in traditional processing technology and annealing pressing steps.Therefore the present invention not only obtains the alternative existing leadless environment-friendly alloy material containing Redford alloy, and shortens the production cycle, improves production efficiency, greatly reduces production cost.
Accompanying drawing explanation
Fig. 1 is production technological process of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment 1, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 2%, tin: 0.5%, silicon: 4.5%, phosphorus: 0.25%, manganese: 0.01%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1250 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 12cm thereon, anti-oxidation, be incubated 1 hour, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 40 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 200 DEG C, anneal is carried out to metal pipe material, annealing time is 20 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 2, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 1%, tin: 7%, silicon: 1.5%, phosphorus: 0.1%, manganese: 0.1%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1290 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 11cm thereon, anti-oxidation, be incubated 1.3 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 50 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 260 DEG C, anneal is carried out to metal pipe material, annealing time is 25 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 3, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 4.5%, tin: 4%, silicon: 3%, phosphorus: 0.2%, manganese: 0.08%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1300 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 13cm thereon, anti-oxidation, be incubated 1.5 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 60 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 300 DEG C, anneal is carried out to metal pipe material, annealing time is 30 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 4, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 6%, tin: 5.5%, silicon: 6%, phosphorus: 0.05%, manganese: 0.05%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1290 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 11cm thereon, anti-oxidation, be incubated 1.3 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 40 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 250 DEG C, anneal is carried out to metal pipe material, annealing time is 30 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Embodiment 5, a kind of leadless environment-friendly copper-base alloy pipe, is made up of the component of following weight percentage: zinc: 7%, tin: 2%, silicon: 0.5%, phosphorus: 0.15%, manganese: 0.15%, and surplus is copper.Its manufacturing process flow as shown in Figure 1, carries out following steps successively:
Each component is weighed up by proportioning, and be placed in main frequency furnace be heated to 1300 DEG C fusing after, stir with graphite rod, and cover the thick high purity flaky graphite powder of 12cm thereon, anti-oxidation, be incubated 1.5 hours, detect alloying constituent whether in specialized range, detection complete and qualified after, continue insulation about 50 minutes, again 1300 DEG C are warming up to, open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second, adopting the method for continuous casting and rolling to produce external diameter is Φ 55mm, internal diameter is Φ 10mm, length is the alloy pipe of 4000mm, at 280 DEG C, anneal is carried out to metal pipe material, annealing time is 25 minutes, rear ultrasonic reflectoscope alloy pipe of having annealed carries out slight crack and pore flaw detection, salable product carry out packed and transported, substandard product melts down.
Gained leadless environment-friendly copper-base alloy pipe is carried out wear resistance and hardness test, and test its physicals, acquired results is as shown in table 1.
Table 1 leadless environment-friendly copper-base alloy pipe performance comparison table
Leadless environment-friendly copper base alloy pipe manufacturing method provided by the invention adopts the production technique of continuous casting and rolling, eliminate the billet process in traditional processing technology and annealing pressing steps, through slight crack and pore flaw detection, qualified product carry out packed and transported, and substandard product melts down.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a leadless environment-friendly copper-base alloy pipe, is characterized in that, is made up of the component of following weight percentage: zinc 2%, tin 0.5%, silicon 4.5%, phosphorus 0.25%, manganese 0.01%, and surplus is copper.
2. a leadless environment-friendly copper-base alloy pipe, is characterized in that, is made up of the component of following weight percentage: zinc 1%, tin 7%, silicon 1.5%, phosphorus 0.1%, manganese 0.1%, and surplus is copper.
3. a leadless environment-friendly copper-base alloy pipe, is characterized in that, is made up of the component of following weight percentage: zinc 6%, tin 5.5%, silicon 6%, phosphorus 0.05%, manganese 0.05%, and surplus is copper.
4. a leadless environment-friendly copper-base alloy pipe, is characterized in that, is made up of: zinc: 4.5%, tin: 4%, silicon: 3%, phosphorus: 0.2%, manganese: 0.08% the component of following weight percentage, and surplus is copper.
5. a manufacture method for leadless environment-friendly copper-base alloy pipe, is characterized in that, comprises following steps:
1) according to the proportioning in claim 1-4 described in any one, copper, phosphorus, tin, zinc, silicon, manganese are placed in main frequency furnace, be heated to 1250 DEG C ~ 1300 DEG C completely fusing after, be cooled to 1200 DEG C;
2), after the aluminium alloy melted completely fully being stirred, on aluminium alloy, cover high purity flaky graphite powder be oxidized to prevent it, and be incubated;
3) 1200 DEG C of insulations are after 1.2 ~ 1.5 hours, in electric furnace, take out sample, adopt direct-reading spectrometer to carry out three to five composition detection to sample, to determine that its alloying constituent is within specialized range;
4) after being incubated 40 ~ 60 minutes further, be again warming up to 1300 DEG C, and open the vibrating device of main frequency furnace, adopt the method for continuous casting and rolling to produce alloy pipe;
5) with box-annealing furnace, anneal is carried out to copper alloy tube;
6) the alloy pipe ultrasonic reflectoscope alloy pipe after having annealed is carried out slight crack and pore flaw detection, melt down to choose substandard product.
6. the manufacture method of leadless environment-friendly copper-base alloy pipe according to claim 5, is characterized in that, step 2) described in stir adopt graphite rod.
7. the manufacture method of leadless environment-friendly copper-base alloy pipe according to claim 5, is characterized in that, step 2) described in the thickness of Graphite Powder 99 be 11 ~ 13cm.
8. the manufacture method of leadless environment-friendly copper-base alloy pipe according to claim 5, is characterized in that, step 4) described in the vibrational frequency of vibrating device of main frequency furnace be 1 time/second.
9. the manufacture method of leadless environment-friendly copper-base alloy pipe according to claim 5, is characterized in that, step 4) described in the external diameter of alloy pipe be Φ 55mm, internal diameter is Φ 10mm, and length is 4000mm.
10. the manufacture method of leadless environment-friendly copper-base alloy pipe according to claim 5, is characterized in that, step 5) described in the annealing temperature of anneal be 200 ~ 300 DEG C, annealing time is 20 ~ 30 minutes.
CN201310589435.XA 2013-11-20 2013-11-20 A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof Active CN103555991B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310589435.XA CN103555991B (en) 2013-11-20 2013-11-20 A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310589435.XA CN103555991B (en) 2013-11-20 2013-11-20 A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof

Publications (2)

Publication Number Publication Date
CN103555991A CN103555991A (en) 2014-02-05
CN103555991B true CN103555991B (en) 2016-01-20

Family

ID=50010335

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310589435.XA Active CN103555991B (en) 2013-11-20 2013-11-20 A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof

Country Status (1)

Country Link
CN (1) CN103555991B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104911393A (en) * 2015-05-12 2015-09-16 苏州列治埃盟新材料技术转移有限公司 Environmental protection lead-free alloy new material alloy rod and preparation method therefor
CN104818405A (en) * 2015-05-12 2015-08-05 苏州列治埃盟新材料技术转移有限公司 Environment-friendly lead-free alloy new material alloy pipe and preparation method thereof
CN104831114A (en) * 2015-05-12 2015-08-12 苏州列治埃盟新材料技术转移有限公司 Novel multicomponent environment-friendly lead-free alloy new material alloy bar and preparation method thereof
CN104818407A (en) * 2015-05-12 2015-08-05 苏州列治埃盟新材料技术转移有限公司 Novel multicomponent environment-friendly lead-free alloy new material alloy pipe and preparation method thereof
CN105420540A (en) * 2015-11-02 2016-03-23 苏州金仓合金新材料有限公司 Environment-friendly lead-free alloy new material alloy pipe applicable to high-speed locomotive
CN107400799A (en) * 2017-08-07 2017-11-28 苏州列治埃盟新材料技术转移有限公司 A kind of copper-based alloy material for Electronic locomotive hardware device and preparation method thereof
CN114250380B (en) * 2021-12-07 2022-12-13 Apm(摩纳哥)有限责任公司 Anti-oxidation red metal alloy material and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170231A (en) * 1983-03-17 1984-09-26 Nippon Mining Co Ltd High tension conductive copper alloy
CN1969052A (en) * 2004-08-10 2007-05-23 三宝伸铜工业株式会社 Copper alloy
CN101696477A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper base alloy powder material and preparation method thereof
CN101763910A (en) * 2008-12-24 2010-06-30 沈阳北恒日立铜材有限公司 Low tin-copper alloy contact wire for electric railway and manufacturing method thereof
CN103060605A (en) * 2013-01-16 2013-04-24 苏州金仓合金新材料有限公司 Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59170231A (en) * 1983-03-17 1984-09-26 Nippon Mining Co Ltd High tension conductive copper alloy
CN1969052A (en) * 2004-08-10 2007-05-23 三宝伸铜工业株式会社 Copper alloy
CN101763910A (en) * 2008-12-24 2010-06-30 沈阳北恒日立铜材有限公司 Low tin-copper alloy contact wire for electric railway and manufacturing method thereof
CN101696477A (en) * 2009-10-23 2010-04-21 吴棕洋 Lead-free copper base alloy powder material and preparation method thereof
CN103060605A (en) * 2013-01-16 2013-04-24 苏州金仓合金新材料有限公司 Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof

Also Published As

Publication number Publication date
CN103555991A (en) 2014-02-05

Similar Documents

Publication Publication Date Title
CN103555991B (en) A kind of leadless environment-friendly copper-base alloy pipe and manufacture method thereof
CN103555993B (en) A kind of leadless environment-friendly acid bronze alloy rod and manufacture method thereof
CN103045904B (en) New environment-friendly lead-free silicon-containing alloy material and preparation method thereof
CN102828063A (en) Novel lead-free environment-friendly high-strength wear-resistant copper-base alloy bar and preparation method thereof
CN102828064B (en) Lead-free free-cutting brass alloy and preparation method thereof
CN102862003A (en) Silver-free copper based solder and preparation method thereof
CN104818405A (en) Environment-friendly lead-free alloy new material alloy pipe and preparation method thereof
CN103060605B (en) Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof
CN104818407A (en) Novel multicomponent environment-friendly lead-free alloy new material alloy pipe and preparation method thereof
WO2016179731A1 (en) Novel alloy bar made from new multi-component environmentally-friendly leadless alloy material and preparation method for novel alloy bar
CN104131199A (en) Manufacturing method of 6101BT7 aluminum alloy thick-walled pipe conductors for electrical power equipment
CN103042318B (en) A kind of environmental protection tin zinc-manganese copper alloy new material for welding and preparation method thereof
CN103060606A (en) Novel environment-friendly antimony-added alloy bar
CN104911393A (en) Environmental protection lead-free alloy new material alloy rod and preparation method therefor
CN103589901B (en) Lead-free environmental-friendly copper-based alloy tube and manufacturing method thereof
CN103589902B (en) A kind of leadless environment-friendly copper-based alloy material and manufacture method thereof
CN103484714A (en) Novel vertical continuous casting unleaded copper base alloy pipe and preparation method thereof
CN103555992B (en) A kind of leadless environment-friendly copper base alloy rod and manufacture method thereof
WO2014166021A1 (en) Copper-based alloy pipe containing silicon and aluminum, and preparation method therefor
CN103045899B (en) Lead-free environmentally-friendly high-intensity wear resistant copper-base novel alloy tube and preparation method thereof
CN102306558A (en) Copper alloy electric contact material for low-voltage electrical device and preparation method of copper alloy electric contact material
CN102628123B (en) Preparation method of high-conduction and high-elasticity alloy rod for wind power equipment
CN103045908B (en) Novel environment-friendly zinc alloy material for welding and preparation method for same
CN104593637A (en) Novel copper-based alloy pipe for high speed railway and preparation method of alloy pipe
CN106683794B (en) A kind of preparation method of the golden busbar of copper molten aluminum fusion

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 215412 Changsheng formation, Ludong village, Ludu Town, Taicang City, Suzhou City, Jiangsu Province

Patentee after: SUZHOU TIANQIAN NEW MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd.

Address before: 215412 Changsheng formation, Ludong village, Ludu Town, Taicang City, Suzhou City, Jiangsu Province

Patentee before: SUZHOU TIANJIAN METAL NEW-MATERIAL Co.,Ltd.

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20221110

Address after: No. 88, Zhenghe Middle Road, Ludu Town, Taicang City, Suzhou City, Jiangsu Province, 215400

Patentee after: SUZHOU JINCANG ALLOY NEW-MATERIAL Co.,Ltd.

Address before: 215412 Changsheng formation, Ludong village, Ludu Town, Taicang City, Suzhou City, Jiangsu Province

Patentee before: SUZHOU TIANQIAN NEW MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right