CN104630563A - Zinc-nickel alloy coating for door and window and thermal treatment process of zinc-nickel alloy coating - Google Patents
Zinc-nickel alloy coating for door and window and thermal treatment process of zinc-nickel alloy coating Download PDFInfo
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- CN104630563A CN104630563A CN201510068727.8A CN201510068727A CN104630563A CN 104630563 A CN104630563 A CN 104630563A CN 201510068727 A CN201510068727 A CN 201510068727A CN 104630563 A CN104630563 A CN 104630563A
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- 239000011248 coating agent Substances 0.000 title claims abstract description 41
- 238000000576 coating method Methods 0.000 title claims abstract description 41
- 229910000990 Ni alloy Inorganic materials 0.000 title claims abstract description 25
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000007669 thermal treatment Methods 0.000 title claims abstract description 19
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 25
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 12
- 239000012535 impurity Substances 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- 239000000126 substance Substances 0.000 claims abstract description 12
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 30
- 239000000843 powder Substances 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 15
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 11
- 229910052689 Holmium Inorganic materials 0.000 claims description 11
- 229910052779 Neodymium Inorganic materials 0.000 claims description 11
- 229910052772 Samarium Inorganic materials 0.000 claims description 11
- 229910052775 Thulium Inorganic materials 0.000 claims description 11
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 235000010210 aluminium Nutrition 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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Abstract
The invention discloses a zinc-nickel alloy coating for a door and a window. The zinc-nickel alloy coating comprises the following chemical components in percentage by mass: 0.02-0.04 percent of C, 16.5-16.8 percent of Zn, 2.15-2.18 percent of Cu, 1.25-1.28 percent of Mg, 0.55-0.58 percent of Mn, 2.1-2.3 percent of Ti, 11.8-12.2 percent of Si, 3.2-3.5 percent of Fe, 0.52-0.55 percent of V, 2.23-2.25 percent of rare earth and the balance of Ni and trace of impurities. The zinc-nickel alloy coating for the door and window can be used for enhancing the intensity of the door and window, and is good in high temperature resistance, quite high in friction resistance and corrosion resistance, capable of being used in severe environment and long in service life. The provided thermal treatment process has the advantages of lowering the processing cost, shortening the processing period, improving the comprehensive mechanical properties of the door and window and improving the product quality.
Description
Technical field
The present invention relates to door and window fields, specifically a kind of admiro coating for door and window and thermal treatment process thereof.
Background technology
Along with the requirement of every profession and trade to high strength alumin ium alloy improves day by day, and propose high-load, lighting, high-strength, high-ductility, high-modulus, a series of requirement such as good corrosion resisting property and welding property, and the range of application of aluminium alloy is more and more wider, vital effect is played in all trades and professions, the component elements of the material of aluminum current alloy also gets more and more, even add a large amount of expensive rare elements, considerably increase cost, and recycle the problems such as difficulty is large.
Summary of the invention
Technical problem to be solved by this invention is, for the shortcoming of above prior art, a kind of admiro coating for door and window and thermal treatment process thereof are proposed, this admiro coating being used for door and window can not only increase the intensity of door and window, resistance to elevated temperatures is good, also there is very strong rub resistance and corrosion resistance nature, can use under rugged environment, and long service life; This thermal treatment process provided, can not only cut down finished cost, and shortens the process-cycle, improves the comprehensive mechanical performance of door and window, improves the quality of product.
In order to solve the problems of the technologies described above, technical scheme of the present invention is achieved in the following ways: a kind of admiro coating for door and window, and the mass percent of admiro coating chemical composition is: C:0.02-0.04%, Zn:16.5-16.8%, Cu:2.15-2.18%, Mg:1.25-1.28%, Mn:0.55-0.58%, Ti:2.1-2.3%, Si:11.8-12.2%, Fe:3.2-3.5%, V:0.52-0.55%, rare earth: 2.23-2.25%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.2-9.5%, Ho:2.1-2.3%, Tm:7.2-7.6%, Dy:8.6-8.8%, Yb:1.5-1.8%, Nd:1.1-1.3%, Sm:7.5-7.8%, surplus is La.
Present invention also offers a kind of thermal treatment process of the admiro coating for door and window, this technique is carried out according to the following steps:
Step (1): according to the component ratio of each element, configuration zinc-nickel alloy powder, first by door and window heat parts to 260-270 DEG C, insulation 30-40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.2-0.4mm, is then heated to 340-350 DEG C, insulation 2-3h, then air-cooled to room temperature with 5-8 DEG C/s speed;
Step (2): again by door and window heat parts to 280-285 DEG C, insulation 35-40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.4-0.6mm, then be heated to 360-380 DEG C, insulation 1-2h, then with 10-12 DEG C/s speed water-cooled to room temperature;
Step (3): by door and window heat parts to 300-310 DEG C, insulation 20-25min, then spraying equipment is utilized to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.5-0.8mm, then door and window piece surface is quickly heated up to 550-560 DEG C, keep 10-12s, be then heated to 670-680 DEG C rapidly, keep 3-5s, then the rapid oil cooling speed with 20-25 DEG C/s is down to room temperature;
Step (4): door and window component are carried out first time thermal treatment: door and window parts are heated to 290-295 DEG C, insulation 15-20h, then with air-cooled with the speed cool to room temperature of 5-7 DEG C/s, clean surface, inspection size; Then the size being finish-machined to needs is carried out.
The technical scheme that the present invention limits further is:
The aforesaid admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.02%, Zn:16.5%, Cu:2.15%, Mg:1.25%, Mn:0.55%, Ti:2.1%, Si:11.8%, Fe:3.2%, V:0.52%, rare earth: 2.23%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.2%, Ho:2.1%, Tm:7.2%, Dy:8.6%, Yb:1.5%, Nd:1.1%, Sm:7.5%, surplus is La.
The aforesaid admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.04%, Zn:16.8%, Cu:2.18%, Mg:1.28%, Mn:0.58%, Ti:2.3%, Si:12.2%, Fe:3.5%, V:0.55%, rare earth: 2.25%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.5%, Ho:2.3%, Tm:7.6%, Dy:8.8%, Yb:1.8%, Nd:1.3%, Sm:7.8%, surplus is La.
The aforesaid admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.03%, Zn:16.7%, Cu:2.16%, Mg:1.27%, Mn:0.56%, Ti:2.2%, Si:11.9%, Fe:3.3%, V:0.54%, rare earth: 2.24%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.3%, Ho:2.2%, Tm:7.4%, Dy:8.7%, Yb:1.7%, Nd:1.2%, Sm:7.6%, surplus is La.
The invention has the beneficial effects as follows: this is used for adding intensity and the antioxidant property that Cu element can increase aluminium alloy in the admiro coating of door and window, improve work-ing life; Add Mg element and can improve its welding property, increase its corrosion resistance and intensity; Add Zn, Ni element and form admiro coating, increase the anticorrosive effect on door and window surface, and crocking resistance and resistance to elevated temperatures significantly improve, increase its work-ing life, and add rare earth element, rare earth element adds in admiro coating, increase constitutional supercooling when heat treatment process, crystal grain thinning, reduce secondary intergranular distance, reduce the gas in alloy and be mingled with, and making constituent phases be tending towards nodularization; Also can reduce smelt surface tension, increase mobility, processing performance is had significantly improved, increase the corrosion resistance nature of door and window; This thermal treatment process provided, can not only cut down finished cost, and shortens the process-cycle, improves the comprehensive mechanical performance of door and window, improves the quality of product.
Embodiment
The present invention is described in further detail below:
embodiment 1
The present embodiment provides a kind of admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.02%, Zn:16.5%, Cu:2.15%, Mg:1.25%, Mn:0.55%, Ti:2.1%, Si:11.8%, Fe:3.2%, V:0.52%, rare earth: 2.23%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.2%, Ho:2.1%, Tm:7.2%, Dy:8.6%, Yb:1.5%, Nd:1.1%, Sm:7.5%, surplus is La; This embodiment still provides the thermal treatment process of the admiro coating for door and window, and this technique is carried out according to the following steps:
Step (1): according to the component ratio of each element, configuration zinc-nickel alloy powder, first by door and window heat parts to 260 DEG C, insulation 30min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.2mm, is then heated to 340 DEG C, insulation 2h, then air-cooled to room temperature with 5 DEG C/s speed;
Step (2): again by door and window heat parts to 280 DEG C, insulation 35min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.4mm, is then heated to 360 DEG C, insulation 1h, then with 10 DEG C/s speed water-cooled to room temperature;
Step (3): by door and window heat parts to 300 DEG C, insulation 20min, then spraying equipment is utilized to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.5mm, then door and window piece surface is quickly heated up to 550 DEG C, keep 10s, be then heated to rapidly 670 DEG C, keep 3s, then the rapid oil cooling speed with 20 DEG C/s is down to room temperature;
Step (4): door and window component are carried out first time thermal treatment: door and window parts are heated to 290 DEG C, insulation 15h, then with air-cooled with the speed cool to room temperature of 5 DEG C/s, clean surface, inspection size; Then the size being finish-machined to needs is carried out.
embodiment 2
The present embodiment provides a kind of admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.04%, Zn:16.8%, Cu:2.18%, Mg:1.28%, Mn:0.58%, Ti:2.3%, Si:12.2%, Fe:3.5%, V:0.55%, rare earth: 2.25%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.5%, Ho:2.3%, Tm:7.6%, Dy:8.8%, Yb:1.8%, Nd:1.3%, Sm:7.8%, surplus is La; This embodiment still provides the thermal treatment process of the admiro coating for door and window, and this technique is carried out according to the following steps:
Step (1): according to the component ratio of each element, configuration zinc-nickel alloy powder, first by door and window heat parts to 270 DEG C, insulation 40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.4mm, is then heated to 350 DEG C, insulation 3h, then air-cooled to room temperature with 8 DEG C/s speed;
Step (2): again by door and window heat parts to 285 DEG C, insulation 40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.6mm, is then heated to 380 DEG C, insulation 2h, then with 12 DEG C/s speed water-cooled to room temperature;
Step (3): by door and window heat parts to 310 DEG C, insulation 25min, then spraying equipment is utilized to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.8mm, then door and window piece surface is quickly heated up to 560 DEG C, keep 12s, be then heated to rapidly 680 DEG C, keep 5s, then the rapid oil cooling speed with 25 DEG C/s is down to room temperature;
Step (4): door and window component are carried out first time thermal treatment: door and window parts are heated to 295 DEG C, insulation 20h, then with air-cooled with the speed cool to room temperature of 7 DEG C/s, clean surface, inspection size; Then the size being finish-machined to needs is carried out.
embodiment 3
The present embodiment provides a kind of admiro coating for door and window, the mass percent of admiro coating chemical composition is: C:0.03%, Zn:16.7%, Cu:2.16%, Mg:1.27%, Mn:0.56%, Ti:2.2%, Si:11.9%, Fe:3.3%, V:0.54%, rare earth: 2.24%, all the other are Ni and trace impurity; In rare earth, comprise following component by weight percentage: Gd:9.3%, Ho:2.2%, Tm:7.4%, Dy:8.7%, Yb:1.7%, Nd:1.2%, Sm:7.6%, surplus is La; This embodiment still provides the thermal treatment process of the admiro coating for door and window, and this technique is carried out according to the following steps:
Step (1): according to the component ratio of each element, configuration zinc-nickel alloy powder, first by door and window heat parts to 265 DEG C, insulation 38min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.3mm, is then heated to 346 DEG C, insulation 2.5h, then air-cooled to room temperature with 6 DEG C/s speed;
Step (2): again by door and window heat parts to 282 DEG C, insulation 38min, then utilizes spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.5mm, then be heated to 370 DEG C, insulation 1.5h, then with 11 DEG C/s speed water-cooled to room temperature;
Step (3): by door and window heat parts to 305 DEG C, insulation 22min, then spraying equipment is utilized to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.6mm, then door and window piece surface is quickly heated up to 555 DEG C, keep 11s, be then heated to rapidly 676 DEG C, keep 4s, then the rapid oil cooling speed with 22 DEG C/s is down to room temperature;
Step (4): door and window component are carried out first time thermal treatment: door and window parts are heated to 292 DEG C, insulation 18h, then with air-cooled with the speed cool to room temperature of 6 DEG C/s, clean surface, inspection size; Then the size being finish-machined to needs is carried out.
Like this by the technical scheme of embodiment, a kind of admiro coating for door and window and thermal treatment process thereof are proposed, this admiro coating being used for door and window can not only increase the intensity of door and window, resistance to elevated temperatures is good, also there is very strong rub resistance and corrosion resistance nature, can use under rugged environment, and long service life; This thermal treatment process provided, can not only cut down finished cost, and shortens the process-cycle, improves the comprehensive mechanical performance of door and window, improves the quality of product.
Above embodiment is only and technological thought of the present invention is described, can not limit protection scope of the present invention with this, and every technological thought proposed according to the present invention, any change that technical scheme basis is done, all falls within scope.
Claims (5)
1. the admiro coating for door and window, it is characterized in that: the mass percent of described admiro coating chemical composition is: C:0.02-0.04%, Zn:16.5-16.8%, Cu:2.15-2.18%, Mg:1.25-1.28%, Mn:0.55-0.58%, Ti:2.1-2.3%, Si:11.8-12.2%, Fe:3.2-3.5%, V:0.52-0.55%, rare earth: 2.23-2.25%, all the other are Ni and trace impurity;
In described rare earth, comprise following component by weight percentage: Gd:9.2-9.5%, Ho:2.1-2.3%, Tm:7.2-7.6%, Dy:8.6-8.8%, Yb:1.5-1.8%, Nd:1.1-1.3%, Sm:7.5-7.8%, surplus is La.
2. the admiro coating for door and window according to claim 1, it is characterized in that: the mass percent of described admiro coating chemical composition is: C:0.02%, Zn:16.5%, Cu:2.15%, Mg:1.25%, Mn:0.55%, Ti:2.1%, Si:11.8%, Fe:3.2%, V:0.52%, rare earth: 2.23%, all the other are Ni and trace impurity;
In described rare earth, comprise following component by weight percentage: Gd:9.2%, Ho:2.1%, Tm:7.2%, Dy:8.6%, Yb:1.5%, Nd:1.1%, Sm:7.5%, surplus is La.
3. the admiro coating for door and window according to claim 1, it is characterized in that: the mass percent of described admiro coating chemical composition is: C:0.04%, Zn:16.8%, Cu:2.18%, Mg:1.28%, Mn:0.58%, Ti:2.3%, Si:12.2%, Fe:3.5%, V:0.55%, rare earth: 2.25%, all the other are Ni and trace impurity;
In described rare earth, comprise following component by weight percentage: Gd:9.5%, Ho:2.3%, Tm:7.6%, Dy:8.8%, Yb:1.8%, Nd:1.3%, Sm:7.8%, surplus is La.
4. the admiro coating for door and window according to claim 1, it is characterized in that: the mass percent of described admiro coating chemical composition is: C:0.03%, Zn:16.7%, Cu:2.16%, Mg:1.27%, Mn:0.56%, Ti:2.2%, Si:11.9%, Fe:3.3%, V:0.54%, rare earth: 2.24%, all the other are Ni and trace impurity;
In described rare earth, comprise following component by weight percentage: Gd:9.3%, Ho:2.2%, Tm:7.4%, Dy:8.7%, Yb:1.7%, Nd:1.2%, Sm:7.6%, surplus is La.
5. for a thermal treatment process for the admiro coating of door and window, it is characterized in that: this technique is carried out according to the following steps:
Step (1): according to the component ratio of each element, configuration zinc-nickel alloy powder, first by door and window heat parts to 260-270 DEG C, insulation 30-40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.2-0.4mm, is then heated to 340-350 DEG C, insulation 2-3h, then air-cooled to room temperature with 5-8 DEG C/s speed;
Step (2): again by door and window heat parts to 280-285 DEG C, insulation 35-40min, then utilize spraying equipment to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.4-0.6mm, then be heated to 360-380 DEG C, insulation 1-2h, then with 10-12 DEG C/s speed water-cooled to room temperature;
Step (3): by door and window heat parts to 300-310 DEG C, insulation 20-25min, then spraying equipment is utilized to be coated onto piece surface uniformly zinc-nickel alloy powder, thickness is 0.5-0.8mm, then door and window piece surface is quickly heated up to 550-560 DEG C, keep 10-12s, be then heated to 670-680 DEG C rapidly, keep 3-5s, then the rapid oil cooling speed with 20-25 DEG C/s is down to room temperature;
Step (4): door and window component are carried out first time thermal treatment: door and window parts are heated to 290-295 DEG C, insulation 15-20h, then with air-cooled with the speed cool to room temperature of 5-7 DEG C/s, clean surface, inspection size; Then the size being finish-machined to needs is carried out.
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|---|---|---|---|
| CN201510068727.8A CN104630563B (en) | 2015-02-10 | 2015-02-10 | Zinc-nickel alloy coating for door and window and thermal treatment process of zinc-nickel alloy coating |
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| CN201510068727.8A CN104630563B (en) | 2015-02-10 | 2015-02-10 | Zinc-nickel alloy coating for door and window and thermal treatment process of zinc-nickel alloy coating |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985850A (en) * | 1982-11-10 | 1984-05-17 | Mitsubishi Heavy Ind Ltd | Heat treatment of ni alloy |
| CN102485926A (en) * | 2010-12-04 | 2012-06-06 | 杭正奎 | Nickel-chromium alloy with wear resistance and high temperature resistance and its production method |
| KR20130095898A (en) * | 2012-02-21 | 2013-08-29 | 한국기계연구원 | Ni-base superalloy having coating layer with excellent thermal stability at high temperature and method of manufacturing the same |
| CN103451478A (en) * | 2013-09-02 | 2013-12-18 | 山东大学 | Nickel-based high temperature alloy, preparation method thereof as well as application thereof in spark plug electrode |
-
2015
- 2015-02-10 CN CN201510068727.8A patent/CN104630563B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5985850A (en) * | 1982-11-10 | 1984-05-17 | Mitsubishi Heavy Ind Ltd | Heat treatment of ni alloy |
| CN102485926A (en) * | 2010-12-04 | 2012-06-06 | 杭正奎 | Nickel-chromium alloy with wear resistance and high temperature resistance and its production method |
| KR20130095898A (en) * | 2012-02-21 | 2013-08-29 | 한국기계연구원 | Ni-base superalloy having coating layer with excellent thermal stability at high temperature and method of manufacturing the same |
| CN103451478A (en) * | 2013-09-02 | 2013-12-18 | 山东大学 | Nickel-based high temperature alloy, preparation method thereof as well as application thereof in spark plug electrode |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Jianying Inventor after: Jiang Yunying Inventor after: Gu Lianying Inventor before: Huang Longhai Inventor before: Huang Yaoqiong Inventor before: Wu Lei |
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Effective date of registration: 20151203 Address after: Wuzhong District Suzhou City, Jiangsu Province town 215156 Jian Feng Village 7 groups Applicant after: SUZHOU CITY WUZHONG DISTRICT XUKOU FENGSHOU MACHINERY PARTS FACTORY Address before: 215156, Suzhou, Jiangsu province Wuzhong District Xu town and Feng Road, No. 388 Applicant before: SUZHOU SHENLONG DOORS AND WINDOWS CO.,LTD. |
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Inventor after: Zhang Lihua Inventor before: Jiang Jianying Inventor before: Jiang Yunying Inventor before: Gu Lianying |
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Effective date of registration: 20221222 Address after: 313201 Deqing Industrial Park, Deqing County, Huzhou City, Zhejiang Province (Mengxi Village, Xinshi Town) Patentee after: Zhejiang hanfugao door and window Technology Co.,Ltd. Address before: No. 10, tianedang Road, Yuexi street, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JIN YUAN OIL MACHINERY Co.,Ltd. |
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