CN104328297A - Carbon fiber reinforced aluminum-based composite material and preparation method thereof - Google Patents
Carbon fiber reinforced aluminum-based composite material and preparation method thereof Download PDFInfo
- Publication number
- CN104328297A CN104328297A CN201410563755.2A CN201410563755A CN104328297A CN 104328297 A CN104328297 A CN 104328297A CN 201410563755 A CN201410563755 A CN 201410563755A CN 104328297 A CN104328297 A CN 104328297A
- Authority
- CN
- China
- Prior art keywords
- granularity
- carbon fiber
- fiber reinforced
- powder
- grain size
- 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
Landscapes
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a carbon fiber reinforced aluminum-based composite material and a preparation method thereof. The composite material comprises the following components in percentage by mass: 1-10% of graphite powder with grain size not greater than 120 mu m, 4-9% of cobalt powder with grain size not greater than 85 mu m, 5-6% of aluminum sulfide with grain size not greater than 100 mu m, 7-9% of zinc oxide with grain size not greater than 75 mu m, 2-6% of iron oxide with grain size not greater than 40 mu m, 1-5% of sodium carboxymethyl cellulose with grain size not greater than 30 mu m, 4-20% of silicon carbide with grain size not greater than 25 mu m, and the balance of aluminum powder with grain size not greater than 60 mu m. The preparation method of the carbon fiber reinforced aluminum-based composite material comprises the following steps: uniformly mixing the components, enabling the mixed components to pass through a 200-mesh sieve specified in GB6003, and then, dry-mixing for at least 1-2 hours; carrying out compression molding under pressure of 700-800 MPa; sintering at 800-1200 DEG C, wherein the sintering pressure is 2-3MPa, the heat preserving time is 30-40 minutes; and cooling. The silicon carbide is added to greatly refine a matrix structure, so that the particle size distribution is uniform, the tensile strength and the yield strength are strengthened, and the hardness is high.
Description
Technical field
The invention belongs to metallurgical field of compound material, particularly relate to a kind of carbon fiber reinforced aluminum matrix composite and preparation method thereof.
Background technology
Powder metallurgy be produce metal or with metal-powder (or mixture of metal-powder and non-metal powder) as raw material, through being shaped and sintering, manufacture the Technology of metallic substance, matrix material and all kinds goods.Powder metallurgy has unique chemical constitution and machinery, physicals, and these performances cannot obtain with traditional casting method.Powder metallurgy technology can reduce alloying constituent segregation to greatest extent, eliminates thick, uneven cast structure.
Aluminum-aluminum alloy is all suitable for the matrix making metal-base composites, and the reinforce of aluminum matrix composite can be continuous print fiber, also can be staple fibre, also can be particle from spherical to erose.Aluminum current based composites enhanced granule material has SiC, AL2O3, BN etc., intermetallic compound as Ni-Al, Fe-Al and Ti-Al also by with work enhanced granule.But the size distribution of the aluminum matrix composite of prior art is uneven, mesh is comparatively large, and therefore hardness is lower, and its tensile strength and yield strength not high yet.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, provide a kind of carbon fiber reinforced aluminum matrix composite and preparation method thereof, the even particle distribution of matrix material, tensile strength and yield strength strengthen, and hardness is high.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
Carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: the silicon carbide 4 ~ 20% of the Xylo-Mucine 1 ~ 5% of the ferric oxide 2 ~ 6% of the zinc oxide 7 ~ 9% of the aluminium sulfide 5 ~ 6% of the cobalt powder 4 ~ 9% of the Graphite Powder 99 1 ~ 10% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
As to further improvement of the present invention, carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: Graphite Powder 99 5%, cobalt powder 8%, aluminium sulfide 5.5%, zinc oxide 8%, ferric oxide 4%, Xylo-Mucine 3%, silicon carbide 12%, all the other are aluminium powder.
As to further improvement of the present invention, silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
The preparation method of above-mentioned carbon fiber reinforced aluminum matrix composite, comprises the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min.
(4) cooling down.
As to further improvement of the present invention, step (3) temperature rise rate is 80 ~ 90 DEG C/min.
As to further improvement of the present invention, step (4) rate of temperature fall is 1.5 DEG C/min.
Principle: silicon carbide can significantly refinement matrix, and after High Temperature Disperse, make even particle distribution, intensity is high, and hardness is high.
beneficial effect
Brinell hardness of the present invention is 90.8 ~ 92.6, and tensile strength is 269 ~ 276MPa, and yield strength is 176 ~ 180MPa, Young's modulus is 86 ~ 89GPa, because adding of silicon carbide can significantly refinement matrix, makes even particle distribution, tensile strength and yield strength strengthen, and hardness is high.
Embodiment
Below by specific embodiment, the present invention is further described in detail, but is not limited to this.
embodiment 1
Carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: the silicon carbide 12% of the Xylo-Mucine 3% of the ferric oxide 4% of the zinc oxide 8% of the aluminium sulfide 5.5% of the cobalt powder 8% of the Graphite Powder 99 5% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
Silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
The preparation method of above-mentioned carbon fiber reinforced aluminum matrix composite, comprises the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min.
(4) cooling down.
Step (3) temperature rise rate is 80 ~ 90 DEG C/min.
Step (4) rate of temperature fall is 1.5 DEG C/min.
embodiment 2
Carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: the silicon carbide 4% of the Xylo-Mucine 1% of the ferric oxide 2% of the zinc oxide 7% of the aluminium sulfide 5% of the cobalt powder 4% of the Graphite Powder 99 1% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
Silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
The preparation method of above-mentioned carbon fiber reinforced aluminum matrix composite, comprises the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min.
(4) cooling down.
Step (3) temperature rise rate is 80 ~ 90 DEG C/min.
Step (4) rate of temperature fall is 1.5 DEG C/min.
embodiment 3
Carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: the silicon carbide 20% of the Xylo-Mucine 5% of the ferric oxide 6% of the zinc oxide 9% of the aluminium sulfide 6% of the cobalt powder 9% of the Graphite Powder 99 10% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
Silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
The preparation method of above-mentioned carbon fiber reinforced aluminum matrix composite, comprises the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min.
(4) cooling down.
Step (3) temperature rise rate is 80 ~ 90 DEG C/min.
Step (4) rate of temperature fall is 1.5 DEG C/min.
embodiment 4
Carbon fiber reinforced aluminum matrix composite, the component containing following mass percentage: the silicon carbide 18% of the Xylo-Mucine 2% of the ferric oxide 3% of the zinc oxide 8% of the aluminium sulfide 5.3% of the cobalt powder 5% of the Graphite Powder 99 2% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
Silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
The preparation method of above-mentioned carbon fiber reinforced aluminum matrix composite, comprises the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min.
(4) cooling down.
Step (3) temperature rise rate is 80 ~ 90 DEG C/min.
Step (4) rate of temperature fall is 1.5 DEG C/min.
comparative example 1
Identical with embodiment 1, difference is: silica dioxide granule replaces silicon carbide whisker.
performance test
Test result sees the following form 1.
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | |
| Brinell hardness | 92.6 | 91.3 | 90.8 | 91.6 | 62.5 |
| Tensile strength MPa | 276 | 273 | 269 | 275 | 216 |
| Yield strength MPa | 180 | 176 | 177 | 178 | 101 |
| Elastic modulus G Pa | 89 | 86 | 87 | 88 | 45 |
Conclusion: the Brinell hardness of comparative example 1 is 62.5, tensile strength is 216MPa, and yield strength is 101MPa, and Young's modulus is 45GPa, and Brinell hardness of the present invention is 90.8 ~ 92.6, tensile strength is 269 ~ 276MPa, and yield strength is 176 ~ 180MPa, and Young's modulus is 86 ~ 89GPa, illustrate that adding of silicon carbide can significantly refinement matrix, make even particle distribution, tensile strength and yield strength strengthen, and hardness is high.
Claims (6)
1. carbon fiber reinforced aluminum matrix composite, it is characterized in that, the component containing following mass percentage: the silicon carbide 4 ~ 20% of the Xylo-Mucine 1 ~ 5% of the ferric oxide 2 ~ 6% of the zinc oxide 7 ~ 9% of the aluminium sulfide 5 ~ 6% of the cobalt powder 4 ~ 9% of the Graphite Powder 99 1 ~ 10% of granularity≤120 μm, granularity≤85 μm, granularity≤100 μm, granularity≤75 μm, granularity≤40 μm, granularity≤30 μm, granularity≤25 μm, all the other are the aluminium powder of granularity≤60 μm.
2. carbon fiber reinforced aluminum matrix composite according to claim 1, it is characterized in that the component containing following mass percentage, Graphite Powder 99 5%, cobalt powder 8%, aluminium sulfide 5.5%, zinc oxide 8%, ferric oxide 4%, Xylo-Mucine 3%, silicon carbide 12%, all the other are aluminium powder.
3. carbon fiber reinforced aluminum matrix composite according to claim 1, is characterized in that, silicon carbide proportion is 3.23 ~ 3.24, and microhardness is 2840 ~ 2900kg/mm
2.
4. based on the preparation method of carbon fiber reinforced aluminum matrix composite according to claim 1, it is characterized in that, comprise the following steps:
(1) by after Graphite Powder 99, cobalt powder, aluminium sulfide, zinc oxide, ferric oxide, Xylo-Mucine, silicon carbide, aluminium powder mixing, through 200 mesh sieves of GB6003 regulation, then at least 1 ~ 2h is dry mixed;
(2) type is made at the pressure of 700 ~ 800MPa;
(3) sinter, sintering temperature is 800 ~ 1200 DEG C, and sintering pressure is 2 ~ 3MPa, and soaking time is 30 ~ 40min;
(4) cooling down.
5. the preparation method of carbon fiber reinforced aluminum matrix composite according to claim 4, is characterized in that, step (3) temperature rise rate is 80 ~ 90 DEG C/min.
6. the preparation method of carbon fiber reinforced aluminum matrix composite according to claim 4, is characterized in that, step (4) rate of temperature fall is 1.5 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563755.2A CN104328297B (en) | 2014-10-22 | 2014-10-22 | Carbon fiber reinforced aluminum matrix composite and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410563755.2A CN104328297B (en) | 2014-10-22 | 2014-10-22 | Carbon fiber reinforced aluminum matrix composite and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104328297A true CN104328297A (en) | 2015-02-04 |
| CN104328297B CN104328297B (en) | 2016-07-27 |
Family
ID=52403102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410563755.2A Active CN104328297B (en) | 2014-10-22 | 2014-10-22 | Carbon fiber reinforced aluminum matrix composite and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104328297B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154699A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Preparation method of high temperature-resistant aluminium alloy material |
| CN105177367A (en) * | 2015-08-31 | 2015-12-23 | 苏州莱特复合材料有限公司 | Antibacterial and anti-corrosion copper-based composite material and preparation method thereof |
| CN105648364A (en) * | 2016-03-01 | 2016-06-08 | 苏州莱特复合材料有限公司 | Aluminum base composite material for ships and boats and preparation method thereof |
| CN105734340A (en) * | 2016-03-18 | 2016-07-06 | 苏州莱特复合材料有限公司 | Silicon carbide titanium-based composite material and preparation method thereof |
| CN108796399A (en) * | 2018-07-02 | 2018-11-13 | 黄河科技学院 | A kind of metal alloy and preparation method thereof with high impact resistance |
| CN108823514A (en) * | 2018-06-12 | 2018-11-16 | 大连理工大学 | A kind of carbon fiber/silicon-carbide particle increases the preparation method and application of aluminum matrix composite altogether |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212990A (en) * | 2005-07-01 | 2008-07-02 | 金文申有限公司 | Medical devices comprising a reticulated composite material |
| CN102560249A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Formula and process for powder metallurgy |
| CN102618740A (en) * | 2011-12-27 | 2012-08-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | Silicon carbide reinforced aluminum-based composite material and its preparation method |
| CN102676883A (en) * | 2011-12-19 | 2012-09-19 | 河南科技大学 | Silicon carbide reinforced aluminum-based composite material and preparation method thereof |
| CN104159688A (en) * | 2012-02-15 | 2014-11-19 | 贝克休斯公司 | Method of making a metallic powder and powder compact and powder and powder compact made thereby |
-
2014
- 2014-10-22 CN CN201410563755.2A patent/CN104328297B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101212990A (en) * | 2005-07-01 | 2008-07-02 | 金文申有限公司 | Medical devices comprising a reticulated composite material |
| CN102560249A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Formula and process for powder metallurgy |
| CN102676883A (en) * | 2011-12-19 | 2012-09-19 | 河南科技大学 | Silicon carbide reinforced aluminum-based composite material and preparation method thereof |
| CN102618740A (en) * | 2011-12-27 | 2012-08-01 | 中国科学院苏州纳米技术与纳米仿生研究所 | Silicon carbide reinforced aluminum-based composite material and its preparation method |
| CN104159688A (en) * | 2012-02-15 | 2014-11-19 | 贝克休斯公司 | Method of making a metallic powder and powder compact and powder and powder compact made thereby |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154699A (en) * | 2015-08-31 | 2015-12-16 | 苏州莱特复合材料有限公司 | Preparation method of high temperature-resistant aluminium alloy material |
| CN105177367A (en) * | 2015-08-31 | 2015-12-23 | 苏州莱特复合材料有限公司 | Antibacterial and anti-corrosion copper-based composite material and preparation method thereof |
| CN105648364A (en) * | 2016-03-01 | 2016-06-08 | 苏州莱特复合材料有限公司 | Aluminum base composite material for ships and boats and preparation method thereof |
| CN105734340A (en) * | 2016-03-18 | 2016-07-06 | 苏州莱特复合材料有限公司 | Silicon carbide titanium-based composite material and preparation method thereof |
| CN108823514A (en) * | 2018-06-12 | 2018-11-16 | 大连理工大学 | A kind of carbon fiber/silicon-carbide particle increases the preparation method and application of aluminum matrix composite altogether |
| CN108796399A (en) * | 2018-07-02 | 2018-11-13 | 黄河科技学院 | A kind of metal alloy and preparation method thereof with high impact resistance |
| CN108796399B (en) * | 2018-07-02 | 2020-07-03 | 黄河科技学院 | Metal alloy with high impact resistance and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104328297B (en) | 2016-07-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104328297A (en) | Carbon fiber reinforced aluminum-based composite material and preparation method thereof | |
| CN111088444B (en) | Preparation method of wear-resistant composite material and preparation method of wear-resistant composite material casting | |
| CN103667851B (en) | The preparation method of a kind of particles reiforced metal-base composition | |
| CN104532041B (en) | A kind of Mo2niB2the preparation technology of based ceramic metal | |
| CN108193148A (en) | A kind of preparation method of Carbon Fibre Reinforced Metal Matrix Composites | |
| CN105950953A (en) | Nodular cast iron inoculant and preparation method thereof | |
| CN103014507A (en) | Powder metallurgy flange and preparation method thereof | |
| CN106119660A (en) | A kind of ceramic metallic material | |
| CN103572163A (en) | Powder-metallurgy valve seat insert and preparation method thereof | |
| CN104353825A (en) | Magnesium matrix composite and preparation method thereof | |
| CN104328366A (en) | Iron-based composite material and preparation method thereof | |
| CN109554564B (en) | Preparation method of amorphous alloy particle and carbon nano tube reinforced aluminum matrix composite material | |
| CN109694971B (en) | Powder metallurgy titanium-aluminum-based composite material and preparation method thereof | |
| CN109226757B (en) | Preparation method and application of material blocking block material for extrusion | |
| CN105734340A (en) | Silicon carbide titanium-based composite material and preparation method thereof | |
| CN105154770A (en) | Phenolic resin reinforcement iron-based composite material and preparation method thereof | |
| CN102605289A (en) | Fire grate strip of sintering machine and manufacturing method of fire grate strip | |
| CN109249019B (en) | Variable-temperature sintering process for 25% Cr high-chromium cast iron and product thereof | |
| JP2015508446A (en) | Method for producing a member from MMC (metal matrix composite) with melt sprayed powder in an inert gas atmosphere | |
| CN111378871B (en) | Ball-milling powder mixing-discharge plasma sintering titanium-based composite material and preparation method thereof | |
| CN104328298B (en) | Cu-base composites and preparation method thereof | |
| CN111206171B (en) | Casting method of high-strength aluminum alloy | |
| CN104357695A (en) | Titanium particle reinforced aluminum-based composite material and preparation method thereof | |
| CN110117730B (en) | Micron-sized Al3Ti and Mg2Si reinforced magnesium-based composite material and preparation method thereof | |
| CN105088069A (en) | High-strength alloy material for mining machinery and preparing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Xixiang Inventor after: Lv Binggui Inventor after: Lv Yuanyang Inventor after: Lv Yuanzhi Inventor before: Liu Li Inventor before: Wang Shuang Inventor before: Qiu Jing Inventor before: Liu Xiaodong Inventor before: Huang Mingming |
|
| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160705 Address after: 511356, No. four, No. 135, Ling Ling Road, Yonghe Economic Zone, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Applicant after: Guangzhou Guiyu Photoelectric Material Science and Technology Co., Ltd Address before: 215001 Torch Road 56, hi tech Zone, Jiangsu, Suzhou Applicant before: Suzhou NetShape Composite Materials Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161009 Address after: 511356, No. four, No. 135, Ling Ling Road, Yonghe Economic Zone, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee after: Guangzhou Guiyu Photoelectric Material Science and Technology Co., Ltd Patentee after: Guangdong Huayun Aluminium Industry Development Co., Ltd. Address before: 511356, No. four, No. 135, Ling Ling Road, Yonghe Economic Zone, Guangzhou economic and Technological Development Zone, Guangdong, Guangzhou Patentee before: Guangzhou Guiyu Photoelectric Material Science and Technology Co., Ltd |