CN102534443B - Production process for improving strength of aluminum profile - Google Patents
Production process for improving strength of aluminum profile Download PDFInfo
- Publication number
- CN102534443B CN102534443B CN201010586766.4A CN201010586766A CN102534443B CN 102534443 B CN102534443 B CN 102534443B CN 201010586766 A CN201010586766 A CN 201010586766A CN 102534443 B CN102534443 B CN 102534443B
- Authority
- CN
- China
- Prior art keywords
- electrophoresis
- section bar
- aluminum profile
- aluminium section
- degreasing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000001962 electrophoresis Methods 0.000 claims abstract description 24
- 239000000243 solution Substances 0.000 claims abstract description 15
- 238000005238 degreasing Methods 0.000 claims abstract description 14
- 238000005406 washing Methods 0.000 claims abstract description 13
- 238000000137 annealing Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 239000007787 solid Substances 0.000 claims abstract description 9
- 239000006104 solid solution Substances 0.000 claims abstract description 8
- 238000000265 homogenisation Methods 0.000 claims abstract description 7
- 238000004806 packaging method and process Methods 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 18
- 239000004519 grease Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009182 swimming Effects 0.000 description 2
- VAYOSLLFUXYJDT-RDTXWAMCSA-N Lysergic acid diethylamide Chemical compound C1=CC(C=2[C@H](N(C)C[C@@H](C=2)C(=O)N(CC)CC)C2)=C3C2=CNC3=C1 VAYOSLLFUXYJDT-RDTXWAMCSA-N 0.000 description 1
- NNBFNNNWANBMTI-UHFFFAOYSA-M brilliant green Chemical compound OS([O-])(=O)=O.C1=CC(N(CC)CC)=CC=C1C(C=1C=CC=CC=1)=C1C=CC(=[N+](CC)CC)C=C1 NNBFNNNWANBMTI-UHFFFAOYSA-M 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- -1 large red Chemical compound 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Abstract
The invention provides a production process for improving the strength of an aluminum profile, which comprises the steps of carrying out extrusion after ingot casting homogenization annealing, wherein the extrusion temperature is 300-390 ℃, and obtaining the aluminum profile; after the extruded aluminum profile is subjected to solid solution at the speed of 350-400 ℃/1h, naturally standing for 80-90 h; then pre-degreasing, degreasing and washing; then carrying out electrophoresis in a solution tank with the temperature ranging from 20 ℃ to 25 ℃ and the solid content ranging from 15% to 17%, and then carrying out electrophoresis in the voltage range of 100V to 160V under the condition that the pH value is 6.0 to 6.3; the electrophoresis time is 3-4 min, and the gel is washed by clean water at normal temperature; drying and collecting materials; and packaging. The invention improves the strength and plasticity of the material, simultaneously ensures that the thickness of the electrophoresis layer is uniform, can completely cover the hidden part, has strong adhesive capacity, is not easy to fall off, has strong corrosion resistance, is flat and smooth, and better meets the requirement of environmental protection.
Description
Technical field
The present invention relates to a kind of production technique that improves aluminum profile strength.
Background technology
Aluminium alloy is because intensity is not high, easily damage, in order to improve plasticity, fracture toughness property and the fatigue property of aluminium alloy, the most direct method is exactly to improve the purity of material, reduces the content of Fe, Si in aluminium alloy but its material cost increases, and may in metallurgical process, be difficult to realize.
Electrophoresis has another name called---electricity, swimming paint, galvanic deposit.Originated the sixties in 20th century, be applied at first vehicle paint base by Ford Motor Company.Due to its outstanding anticorrosion, antirust function, be used widely in military industry very soon.Just be applied in recent years the surface treatment of haberdashery and hardware.Due to its good quality and height environmental protection, progressively substituting traditional paint spraying.
Electrocoating paint is scattered in water with ionic condition, and under the effect of DC electric field, orientation concentrates on hardware workpiece surface, forms fine and close protective membrane.According to the difference of charged state after the resin particle ionization in electrocoating paint, can be divided into anodic electrophoresis (become negative ion after resin particle ionization, be called for short AED) and ability cathode electrophoresis (become positive ion after resin particle ionization, be called for short CED).The corrosion resistance nature of electrophoretic coating layer extremely good (generally can pass through neutral salt spray test more than 400 hours), discoloration-resisting is strong, good with the bonding force of matrix metal, can carry out various mechanical workout, coat is bright in luster, can be mixed with shades of colour according to user's requirement, common are gold, large red, emerald green, royalblue, coffee color, rifle look, black etc., compared with painting technology, have good workability, pollution to environment and harm significantly reduce, be widely used in each production department, as automobile, motorcycle, bicycle spare parts and accessories, building materials (lockset and door handle), hardware appliance, instrument, furniture, office appliance, metal spectacle frame, slider of zipper fastener, keyring lock, lighter fan housing, spring, plated item, aluminium section bar, watchband, label, jewellery, artwork and minaudiere, kitchen tackle (cutter), bathhouse article (plumbing), household electrical appliance, medicine equipment and toy, and other requires the occasion of color electrophoresis.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, a kind of production technique that improves aluminum profile strength is provided, by annealing and pushing the intensity and the plasticity that improve material, adopt electrophoretic layer high low potential thickness evenly, can cover shelter completely, and adhesive ability strong, be not easy to come off.
Object of the present invention is achieved through the following technical solutions:
The production technique that improves aluminum profile strength, is characterized in that comprising the following steps:
1. by after ingot homogenization annealing, push, extrusion temperature is 300～390 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 350～400 DEG C/1h solid solution, is placed 5～10 days naturally;
2. the surperficial grease removal of aluminium section bar: pre-degreasing, degreasing, washing;
3. the electrophoretic process of aluminium section bar: first in the solution tank of 20～25 DEG C of temperature ranges, solids content is in 15～17% scopes, then, under the condition of pH value 6.0～6.3, carries out electrophoresis in 100～160V voltage range; And electrophoresis time is 3～4min, with the clear water washing under normal temperature; Dry rewinding;
4. packaging.
Further, the production technique of above-mentioned raising aluminum profile strength, wherein, extrusion temperature is 350 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 400 DEG C/1h solid solution, is placed 10 days naturally.
Further, the production technique of above-mentioned raising aluminum profile strength, wherein, the electrophoretic process of step aluminium section bar is 3. carried out the electrophoresis time of 4min in solution under the condition of the pH value 6.1 that is first 16% at 25 DEG C, 150V, solids content; Then clean with clear water at normal temperatures; Dry again, rewinding.
The substantive distinguishing features of technical solution of the present invention and progressive being mainly reflected in:
By annealing and pushing and improve intensity and the plasticity of material, the high low potential thickness of electrophoretic layer evenly, can cover shelter completely, and adhesive ability strong, be not easy to come off, rotproofness is strong and open and flat smooth, more meets environmental requirement.
Embodiment
The technological process of production that the present invention improves aluminum profile strength is: first aluminium alloy cast ingot is carried out to homogenizing annealing, be raised to 450～480 DEG C by aluminium alloy cast ingot from room temperature with the temperature rise rate of 45～60 DEG C/h, insulation 12～24h, then air cooling; After ingot homogenization annealing, push, extrusion temperature is 300～390 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 350～400 DEG C/1h solid solution, is placed 80～90h naturally; Follow pre-degreasing, degreasing, washing; Then in the solution tank of 20～25 DEG C of temperature ranges, solids content is in 15～17% scopes, then, under the condition of pH value 6.0～6.3, carries out electrophoresis in 100～160V voltage range; And electrophoresis time is 3～4min, with the clear water washing under normal temperature; Dry rewinding; Packaging.
When film reaches certain thickness (paint film resistance greatly to a certain extent), workpiece surface forms insulation layer, and " heteropole is inhaled mutually " stops, electrophoretic painting end of processing.Whole aluminium section bar treatment process can be summarized following four steps:
Electrolysis: the electrolysis of water, the anode in the solution with ionic conductivity and negative electrode are connected direct current, and negatively charged ion is inhaled toward anode, and positively charged ion is inhaled toward negative electrode, and produces chemical reaction.
Electrophoresis: the process that the polymkeric substance of band point springs up to negative electrode or anode respectively, anode in colloidal solution and negative electrode connect after electricity, are just being with (or negative) electric charge colloidal particle to be called electrophoresis to negative electrode (or anode) side's swimming phenomenon under the effect of electric field.
Galvanic deposit: charged polymkeric substance is respectively in the process of negative electrode or anodically deposit; The phenomenon that solid is separated out from liquid is called aggegation (cohesion, deposition), is generally because cooling or concentrated solution produce, and in electrophoretic painting, is by means of electricity.Particle positively charged in the time of cathode electro-coating condenses on negative electrode, electronegative particle (ion) is assembled at anode, when positively charged colloidal particle (resin and pigment) arrives negative electrode (by coating) surface region (overbasic interface layer), obtain electronics, and react and become water-insoluble with hydroxide ion, be deposited on negative electrode (coated article).
Electric osmose: the electrophoresis film of deposition shrinks, sloughs solvent and water, form the wet film of even compact, after the energising of the two ends (negative electrode and anode) of the different solution of the concentration with semi-permeable membranes interval, the solvent of lower concentration is called electric osmose to the capable phenomenon of high density sidesway.Electric osmose makes hydrophilic film become hydrophobic film, and dehydration makes film densification.
Embodiment 1
After ingot homogenization annealing, push, extrusion temperature is 390 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 350 DEG C/1h solid solution, is placed 6 days naturally;
The surperficial grease removal of aluminium section bar: pre-degreasing, degreasing, washing;
The electrophoretic process of aluminium section bar: first in the solution tank of 21 DEG C of temperature ranges, solids content is in 15% scope, then, under the condition of pH value 6.0, carries out electrophoresis in 100V voltage range; And electrophoresis time is 4min, with the clear water washing under normal temperature; Dry rewinding;
Packaging.
Embodiment 2
After ingot homogenization annealing, push, extrusion temperature is 300 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 380 DEG C/1h solid solution, is placed 8 days naturally;
The surperficial grease removal of aluminium section bar: pre-degreasing, degreasing, washing;
The electrophoretic process of aluminium section bar: first in the solution tank of 24 DEG C of temperature ranges, solids content is in 16% scope, then, under the condition of pH value 6.3, carries out electrophoresis in 160V voltage range; And electrophoresis time is 3min, with the clear water washing under normal temperature; Dry rewinding;
Packaging.
Embodiment 3
After ingot homogenization annealing, push, extrusion temperature is 375 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 360 DEG C/1h solid solution, is placed 7 days naturally;
The surperficial grease removal of aluminium section bar: pre-degreasing, degreasing, washing;
The electrophoretic process of aluminium section bar: first in the solution tank of 20 DEG C of temperature ranges, solids content is in 17% scope, then, under the condition of pH value 6.0, carries out electrophoresis in 150V voltage range; And electrophoresis time is 3min20s, with the clear water washing under normal temperature; Dry rewinding;
Packaging.
The present invention is by annealing and pushing and improve intensity and the plasticity of material, the high low potential thickness of electrophoretic layer evenly, can cover shelter completely, and adhesive ability strong, be not easy to come off, rotproofness is strong and open and flat smooth, more meets environmental requirement.
It is emphasized that: be only preferred embodiment of the present invention above, not the present invention is done to any pro forma restriction, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (1)
1. the production technique that improves aluminum profile strength, is characterized in that comprising the following steps:
1. by after ingot homogenization annealing, push, extrusion temperature is 350 DEG C, obtains aluminium section bar; Aluminium section bar after extruding, after 3400 DEG C/1h solid solution, is placed 10 days naturally;
2. the surperficial grease removal of aluminium section bar: pre-degreasing, degreasing, washing;
3. the electrophoretic process of aluminium section bar: first in the solution tank of 25 ° of C temperature, solids content is 16%, then, under the condition of pH value 6.1, carries out electrophoresis under 150V voltage; And electrophoresis time is 4min, with the clear water washing under normal temperature; Dry rewinding;
4. packaging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586766.4A CN102534443B (en) | 2010-12-14 | 2010-12-14 | Production process for improving strength of aluminum profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010586766.4A CN102534443B (en) | 2010-12-14 | 2010-12-14 | Production process for improving strength of aluminum profile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102534443A CN102534443A (en) | 2012-07-04 |
| CN102534443B true CN102534443B (en) | 2014-06-11 |
Family
ID=46342457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010586766.4A Active CN102534443B (en) | 2010-12-14 | 2010-12-14 | Production process for improving strength of aluminum profile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102534443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324973A (en) * | 2014-09-04 | 2015-02-04 | 明达铝业科技(太仓)有限公司 | Making method of high-strength aluminum section tubes |
| CN105463268B (en) * | 2015-11-27 | 2017-11-03 | 如皋市华阳铝制品有限公司 | Aluminum alloy section bar of lock core |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597710A (en) * | 2009-06-10 | 2009-12-09 | 苏州有色金属研究院有限公司 | A kind of 2 xxx aluminium alloy for aviation and working method thereof |
| CN101760679A (en) * | 2009-12-28 | 2010-06-30 | 东北轻合金有限责任公司 | Preparation method of 7B04 aluminium alloy section |
-
2010
- 2010-12-14 CN CN201010586766.4A patent/CN102534443B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597710A (en) * | 2009-06-10 | 2009-12-09 | 苏州有色金属研究院有限公司 | A kind of 2 xxx aluminium alloy for aviation and working method thereof |
| CN101760679A (en) * | 2009-12-28 | 2010-06-30 | 东北轻合金有限责任公司 | Preparation method of 7B04 aluminium alloy section |
Non-Patent Citations (6)
| Title |
|---|
| 唐亮.铝型材电泳涂漆工艺的生产实践.《轻合金加工技术》.2006,第34卷(第4期),36-39. |
| 柯跃虎.电泳涂装工艺参数对铝型材涂膜质量的影响.《现代涂料与涂装》.2010,第13卷(第7期),51-54. |
| 电泳涂装工艺参数对铝型材涂膜质量的影响;柯跃虎;《现代涂料与涂装》;20100731;第13卷(第7期);51-54 * |
| 皮丕辉等.铝型材用丙烯酸酯类阴极电泳涂料树脂的合成及应用.《电镀与涂饰》.2005,第24卷(第6期),55-58. |
| 铝型材用丙烯酸酯类阴极电泳涂料树脂的合成及应用;皮丕辉等;《电镀与涂饰》;20050630;第24卷(第6期);55-58 * |
| 铝型材电泳涂漆工艺的生产实践;唐亮;《轻合金加工技术》;20061231;第34卷(第4期);36-39 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102534443A (en) | 2012-07-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104589760B (en) | A kind of aluminium alloy extrusions and its manufacture method | |
| CN100464007C (en) | Process for preparing neodymium-iron-boron permanent magnetic material surface gradient function coating layer | |
| EP1870489B1 (en) | Method to obtain a corrosion-resistant and shiny substrate | |
| CN104911644B (en) | The preparation method of super-hydrophobic zinc coat on a kind of steel surface | |
| EP3228727A2 (en) | Method for the production of coated substrates, coated substrates, and their use | |
| CN106319446B (en) | A kind of decoration preparation method of film bottoming vacuum coating | |
| CN106191564B (en) | House ornamentation dark DE Specular Lighting pool aluminium alloy and its preparation process | |
| CN102534443B (en) | Production process for improving strength of aluminum profile | |
| CN102477575A (en) | Electrophoresis surface treatment process for aluminum product | |
| WO2017009362A2 (en) | Method for manufacturing coated substrates, coated substrates, use thereof, and systems for manufacturing coated substrates | |
| CN107641827A (en) | A kind of aluminium alloy anode oxide technique | |
| CN114318465B (en) | Micro-arc oxidation preparation method for 7-series aluminum alloy black surface | |
| EP3498879B1 (en) | Coated substrates and method for the production of coated substrates and their use | |
| WO2015102142A1 (en) | Method for surface treating metal interior/exterior material and surface-treated metal interior/exterior material | |
| CN105568339B (en) | It is a kind of using magnesium/magnesium alloy as the multicoat composite material and preparation method of matrix | |
| CN102127758A (en) | Silver plating process on workpiece surface | |
| CN103088380A (en) | Methods for preparing super-hydrophobic coatings on surfaces of magnesium and magnesium alloy | |
| CN113399222B (en) | Automobile body coating method capable of reducing VOC (volatile organic compounds) emission | |
| CN103203915A (en) | Aluminum micro-arc electrophoresis composite film and preparation process thereof | |
| CN101831685A (en) | Electrophoretic coating method for surface of magnesium alloy part | |
| WO2001051681A2 (en) | Lustrous metal surfaces | |
| CN104562130B (en) | The manufacture method of light metal or the titania based ceramic film of its alloy surface | |
| JP6499930B2 (en) | Aluminum coating material and method for producing the same | |
| CN101530842A (en) | Surface coating processing technology | |
| CN202925125U (en) | Colored coated plastic |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: RUGAO HUAYANG ALUMINIUM PRODUCTS CO., LTD. Free format text: FORMER OWNER: ZHANGJIAGANG HUAYANG METAL CO., LTD. Effective date: 20140402 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215628 SUZHOU, JIANGSU PROVINCE TO: 226543 NANTONG, JIANGSU PROVINCE |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20140402 Address after: 226543 Jiangsu city of Rugao Province under the original town No. eight (the original Hui Ren Lu town industrial concentration area) Applicant after: RUGAO HUAYANG ALUMINUM PRODUCTS Co.,Ltd. Address before: 215628, Jiangsu, Suzhou province Zhangjiagang Nanfeng Zhenhai Village Yang Hua metal products Co., Ltd. Applicant before: Zhangjiagang Huayang Metal Products Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226500 No. 28, Taoli Road, Xiayuan Town, Rugao City, Nantong City, Jiangsu Province Patentee after: Nantong Huayang aluminum products Co.,Ltd. Address before: 226543 No. 8, Huiren Road, Xiayuan Town, Rugao City, Jiangsu Province (in the industrial concentration zone of Xiayuan town) Patentee before: RUGAO HUAYANG ALUMINUM PRODUCTS Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| PE01 | Entry into force 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: Production process for improving the strength of aluminum profiles Effective date of registration: 20221102 Granted publication date: 20140611 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Xiayuan sub branch Pledgor: Nantong Huayang aluminum products Co.,Ltd. Registration number: Y2022320010637 |