CN101466254B - Coating metallic plate - Google Patents
Coating metallic plate Download PDFInfo
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- CN101466254B CN101466254B CN2008100938331A CN200810093833A CN101466254B CN 101466254 B CN101466254 B CN 101466254B CN 2008100938331 A CN2008100938331 A CN 2008100938331A CN 200810093833 A CN200810093833 A CN 200810093833A CN 101466254 B CN101466254 B CN 101466254B
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- metallic plate
- coated metallic
- substrate
- coating
- chemical treatment
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- 238000000576 coating method Methods 0.000 title claims abstract description 49
- 239000011248 coating agent Substances 0.000 title claims abstract description 48
- 239000000758 substrate Substances 0.000 claims description 66
- 239000000126 substance Substances 0.000 claims description 50
- 239000002987 primer (paints) Substances 0.000 claims description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 4
- 239000010960 cold rolled steel Substances 0.000 claims description 4
- 238000005246 galvanizing Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 12
- 239000003973 paint Substances 0.000 abstract description 11
- 238000012545 processing Methods 0.000 abstract description 7
- 238000012993 chemical processing Methods 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 239000000047 product Substances 0.000 description 17
- 238000005516 engineering process Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000003666 anti-fingerprint Effects 0.000 description 4
- 239000008199 coating composition Substances 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000010410 dusting Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 229910001297 Zn alloy Inorganic materials 0.000 description 2
- 238000007605 air drying Methods 0.000 description 2
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 description 2
- 238000004532 chromating Methods 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000006116 anti-fingerprint coating Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The invention discloses a coating metal plate, comprising a base plate, a chemical processing layer on the front face of the base plate, a conductive coating on the back face of the base plate, and a paint layer outside the chemical processing layer, wherein, the side of at least one opposite side of the front face of the coating metal plate is provided with a conductive belt having exposed chemical processing layer. The coating metal plate of the invention is used for processing the shell of the products such as a computer case needing the electromagnetic interference test and the like.
Description
Technical field
The present invention relates to a kind of coated metallic plate, particularly a kind of coated metallic plate that is used for to do the electric appliance casing of complete machine Electromagnetic Interference Test.
Background technology
Existing coated metallic plate is referring to Fig. 1.Existing coated metallic plate comprises substrate 11, and substrate 11 can be made by steel plates such as cold-reduced sheet, electrolytic galvanized sheet, heat zinc coating plate, aluminium plating zinc plates.On the front of substrate 11, the back side, have positive chemical treatment layer 12, back side chemical treatment layer 14 respectively.The skin of positive chemical treatment layer 12 has coating protection layer 13.Back side chemical treatment layer 14 skin have back of the body enamelled coating 15.
Because existing coated metallic plate environmentally safe, the shell that therefore is widely used in household electrical appliance such as outer case of refrigerator, refrigerator side plate, microwave oven shell, air conditioner casing, washing machine is made.Existing coated metallic plate surface is owing to production technology characteristic and face coat characteristics, and positive part can not be conducted electricity behind the external coating.Therefore can't satisfy the complete machine Electromagnetic Interference Test requirement of the shell made from existing coated metallic plate.Therefore, existing coated metallic plate need be done at computer housing etc. on the electric appliance casing of complete machine Electromagnetic Interference Test and seldom use.
The production of existing computer housing shell, as use the technology of dusting or spraying paint after traditional first moulding, final product after complex procedures and the technology of dusting or spraying paint can cause more serious pollution and increase manufacturing cost and moulding occurs dusting or spraying paint inhomogeneous easily, makes product appearance coarse.
Therefore, how providing a kind of coated metallic plate that computer housing etc. need be done the electric appliance casing of complete machine Electromagnetic Interference Test that is used for, is the present technical issues that need to address.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of coated metallic plate, the needs of the product casings such as computer housing that carry out Electromagnetic Interference Test of being used to satisfy the demand.
Specifically, the invention discloses a kind of coated metallic plate, comprise the chemical treatment layer of substrate, substrate front side, the conductive coating of substrate back, and the dope layer of chemical treatment layer outside, there are the conductive strips of exposed chemical treatment layer at least one opposite side edge, the front of described coated metallic plate.
Preferably, described conductive strips are two ribbon zones along opposite side edge runs parallel.
Preferably, the width of described conductive strips is identical.
Preferably, described dope layer comprises primer coating and topcoat.
Preferably, the conductive coating of described substrate back is specially the inorganic conductive coating of anti-the fingerprint.
Preferably, described substrate is cold-rolled steel sheet, hot-dip galvanizing sheet steel, plated steel sheet or alloy-steel plate.
Preferably, described coated metallic plate also comprises the diaphragm that is positioned at outside the described topcoat.
Compare with the above-mentioned background technology, because the chemical treatment layer of the substrate front side of the described coated metallic plate of the embodiment of the invention has the dope layer that covers described chemical treatment layer outward, there are the conductive strips 5 of exposed chemical treatment layer 1 at least one opposite side edge, the front of described coated metallic plate.The zone, two edges that does not scribble dope layer in the described coated metallic plate of embodiment of the invention front has conductive strips 5; And described substrate back is coated with conductive coating, so the positive local conduction that just has of the described coated metallic plate of the embodiment of the invention and the back side two specific characters of conducting electricity.After the described coated metallic plate of the embodiment of the invention is being processed into specific product, can satisfy the requirement of Electromagnetic Interference Test.
The manufacturer of product such as computer housing uses the described coated metallic plate of the embodiment of the invention just can simplified processing process like this, reduces processing technology such as spray paint, the saving manufacturing cost.
Description of drawings
Fig. 1 is the structural representation of prior art coated metallic plate;
Fig. 2 is first kind of example structure figure of coated metallic plate of the present invention;
Fig. 3 is first kind of embodiment front view of coated metallic plate of the present invention;
Fig. 4 is second kind of example structure figure of coated metallic plate of the present invention.
The specific embodiment
The invention provides a kind of coated metallic plate, can satisfy and produce the requirement of shell that needs carry out the products such as computer housing of Electromagnetic Interference Test.
Referring to Fig. 2 and Fig. 3, Fig. 2 is first kind of example structure figure of coated metallic plate of the present invention; Fig. 3 is first kind of embodiment front view of coated metallic plate of the present invention.
First kind of example structure figure of coated metallic plate shown in Figure 2 is specially the cross-sectional structure schematic diagram of the described coated metallic plate of the embodiment of the invention.
The described coated metallic plate of first embodiment of the invention comprises the chemical treatment layer 2 in substrate 1, substrate 1 front, the conductive coating 4 at substrate 1 back side, and the dope layer 3 of chemical treatment layer 2 outside, the front of described coated metallic plate has the conductive strips 5 that there is exposed chemical treatment layer 1 at an opposite side edge at least.
Described conductive strips 5 are specifically as follows two ribbon zones along opposite side edge runs parallel.The width of described conductive strips 5 can be identical, also can be inequality.
Described dope layer 3 can form described dope layer 3 directly according to the width requirement coating composition of dope layer 3.
The edge line position of the width of coated metallic plate dope layer 3 of the present invention can be adjusted according to processing request.To produce the host computer product is example, and the width of described dope layer 3 equals the width of host computer front or side.
And in order to guarantee the adhesive force of substrate 1 used steel plate and follow-up dope layer 3, the surface that requires described substrate 1 is not pass through the sheet material that phosphatization or chromating are handled.
Can be coated with at the back side of substrate 1 and the special inorganic conductive coating of anti-fingerprint material to be housed to form conductive coating 4.
Perhaps, substrate 1 front is carried out chemical treatment and is formed chemical treatment layer 2, the skin of positive chemical treatment layer 2 forms dope layer 3 according to the predetermined width coating process of described dope layer 3, and the conductive strips 5 of the described coated metallic plate of embodiment of the invention both sides can be realized the edge conduction like this.
The chemical treatment layer 2 outer dope layer 3 with the described chemical treatment layer 2 of covering in substrate 1 front of the described coated metallic plate of the embodiment of the invention, there are the conductive strips 5 of exposed chemical treatment layer 1 at least one opposite side edge, the front of described coated metallic plate.The zone, two edges that does not scribble dope layer in the described coated metallic plate of embodiment of the invention front has conductive strips 5; And described substrate back is coated with conductive coating, so the positive local conduction that just has of the described coated metallic plate of the embodiment of the invention and the back side two specific characters of conducting electricity.After the described coated metallic plate of the embodiment of the invention is being processed into specific product, can satisfy the requirement of Electromagnetic Interference Test.After described coated metallic plate is being processed to product, can satisfy EMI (electromagnetic interference) test request.The described coated metallic plate of the embodiment of the invention can pass through Electromagnetic Interference Test after being made into appliance shell.
Like this, the manufacturer of products such as computer housing, when using the described coated metallic plate converted products of the embodiment of the invention, just can simplified processing process, technology such as do not need to spray paint has reduced environmental pollution, has saved manufacturing cost.
The described coated metallic plate of the embodiment of the invention can be applied to products such as household appliances shell, building internal and external ornament, being applied to especially can be by panel beating modes such as bending, impact, stretchings, and complete machine is had in the product casings such as the computer housing of electromagnetic shielding requirement and DVD.
From the angle of electromagnetic shielding, desirable screening housing should use very thick metallic plate, has continuous structure, not seam and opening.And in fact, designing a good screening housing must be with desired consistent, not only to have and enter the passage that maintenance and repair are carried out in inside, human factor is arranged, the watch window of control button and connector and instrument and indicator also to be arranged, and the heat of casing inner electronic equipment is shed easily.
Metal material has firm structure, and has high electricity to lead continuity in seam and corner, can obtain fine effectiveness.Under the various mechanical stresses that the shell of this form in use may occur, can keep effectiveness constant.Want to have advantages of favorable electromagnetic shielding effect, just require the seam of conducting surface separately must not be insulation or very high impedance arranged.Therefore, the seam crossing of product casing such as computer housing and DVD need have conductive characteristic.
After computer housing and the machine-shaping of DVD shell, need carry out complete machine EMI test, require the sheet edge conduction of being processed, for anti-static electrification and other positions non-conductive.
The described coated metallic plate of the embodiment of the invention can be determined the width of dope layer 3 according to the shape of product casings such as computer housing and DVD, guarantees the front edge conduction of described coated metallic plate, and dope layer 3 is non-conductive.
The described coated metallic plate of the embodiment of the invention, be after the process chemical treatment of the front of substrate 1, the linear oil-free polyester resin coating series of positive coating macromolecule, be heating and curing with the heated-air drying baking oven and form whole dope layer, and there are the conductive strips 5 of exposed chemical treatment layer 1 at least one opposite side edge, front that will guarantee described coated metallic plate, ensured coated metallic plate front edge conduction of the present invention.Perhaps, the linear oil-free polyester resin coating series of predetermined width coating macromolecule according to described dope layer 3, being heating and curing with the heated-air drying baking oven forms dope layer 3, and the conductive strips 5 of the described coated metallic plate of embodiment of the invention both sides just can realize that the edge of described coated metallic plate conducts electricity like this.
Simultaneously, at substrate 1 back coating conductive coating, guarantee coated metallic plate of the present invention back side conductive characteristic.
The described coated metallic plate of the embodiment of the invention, the described coated metallic plate back coating conductive coating of anti-the fingerprint, the front edge conduction, and has excellent flexibility, anti-pollution, chemical proofing, decay resistance and good hardness, the requirement that requires and prevent electromagnetic interference as the machine-shaping of products such as computer housing can be satisfied, batch machining and industrial applications can be realized.
The production process of the described coated metallic plate of first embodiment of the invention can may further comprise the steps:
S100, will carry out surface clean as the steel plate of substrate 1.
S200, the substrate 1 after will cleaning carry out dry tack free.
S300, chemical surface treatment is carried out in the front of dried substrate 1.
Can select one side as positive arbitrarily for dried substrate 1.
S400, the substrate after the chemical surface treatment 1 is carried out surface baking, form chemical treatment layer 2.
S500, the part coating composition layer 3 beyond two the opposite side border areas in described chemical treatment layer 2 surface are conductive strips 5; The conductive coating 4 of substrate 1 back side coating simultaneously.
In order to protect the described coated metallic plate of the embodiment of the invention, can be after described coated metallic plate machine, step below increasing:
S600, at described substrate 1 front dope layer 3 outer surface pasting protective films.
Referring to Fig. 3, this figure is second kind of example structure figure of coated metallic plate of the present invention.
Second kind of embodiment of coated metallic plate of the present invention is with respect to first embodiment, and described dope layer 3 specifically comprises primer coating 31 and topcoat 32, can better guarantee anti-pollution, chemical proofing, the decay resistance of described metallic plate like this.
The described coated metallic plate of second embodiment of the invention, specifically comprise the chemical treatment layer 2 of substrate 1, the covering of described substrate front side, the conductive coating 4 that described substrate 1 back side covers, and cover described chemical treatment layer 2, primer coating 31 and topcoat 32 that to expose described chemical treatment layer 2 width two side areas be conductive strips 5, described topcoat 32 covers described primer coating 31, and the width of described primer coating 31 equals the width of described topcoat 32.
The zone that the described chemical treatment layer 2 width two side areas of described exposure are conductive strips 5 can be identical, also can be inequality.Specifically can process needs according to reality determines.
Described primer coating 31 and topcoat 32 can form described dope layer 3 directly according to the width requirement coating composition of dope layer 3.
The edge line position of coated metallic plate dope layer 3 of the present invention can be adjusted according to processing request.To produce the host computer product is example, and the width of described dope layer 3 equals the width of host computer front or side.
And in order to guarantee the adhesive force of substrate 1 used steel plate and follow-up dope layer 3, the surface that requires described substrate 1 is not pass through the sheet material that phosphatization or chromating are handled.
The first, in order to guarantee the adhesive force between substrate 1 surface and the topcoat 32.
The second, can provide good anti-corrosion and weather resistance for substrate 1.
The solidification temperature of primer coating 31 requires: the highest metallic plate temperature of the metallic plate of primer coating coating 31 in baking oven is 180 ℃ to 250 ℃, and continues heating 40 to 100 seconds.
For the coating of primer coating 31,, require primer coating 31 must have enough pliabilitys and extensibility in order to guarantee the mouldability of follow-up metallic plate processing.
The production process of the described coated metallic plate of second embodiment of the invention can may further comprise the steps:
S100, will carry out surface clean as the steel plate of substrate 1.
S200, the substrate 1 after will cleaning carry out dry tack free.
S300, chemical surface treatment is carried out in the front of dried substrate 1.
Can select the front of one side arbitrarily for dried substrate 1 as substrate 1.
S400, the substrate after the chemical surface treatment 1 is carried out surface baking, form chemical treatment layer 2.
S501, the part primer coating beyond two the opposite side border areas in described chemical treatment layer 2 surface are conductive strips 5; The conductive coating 4 of substrate 1 back side coating simultaneously.
Conductive coating 4 is specifically as follows the inorganic conductive coating of anti-fingerprint the 4.
S502, the substrate 1 that will be coated with priming paint carry out the priming paint hot setting; The highest metallic plate temperature in baking oven is 180 ℃ to 250 ℃, and heats 40 to 100 seconds, forms primer coating 31.
S503, at primer coating 31 surface coating finish paints, form topcoat 32.
When the topcoat 32 of substrate 1 positive application, under the prerequisite of not destroying positive chemical treatment layer 2, guarantee that the two side areas of substrate 1 width is that conductive strips 5 do not cover finish paint coating.
In the specific process, the user can select the width that primer coating coating 31 and topcoat 32 width are specially needs coating.
In order to protect the described coated metallic plate of the embodiment of the invention, can be after described coated metallic plate machine, step below increasing:
S600, at described substrate 1 front dope layer 3 outer surface pasting protective films.
Described coated metallic plate of the embodiment of the invention and existing coated metallic plate are relatively, because dope layer 3 or topcoat 32 have enough pliabilitys and extensibility, can satisfy the flawless bending requirement of 180 degree bendings, expand the application of coated metallic plate.
The described coated metallic plate of the embodiment of the invention is because can application there be the inorganic conductive coating of anti-fingerprint the 4 at the back side, and the front edge conduction, therefore, can satisfy the complete machine EMI performance test of product casings such as computer machine in conjunction with the electric conductivity of these two faces.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. coated metallic plate, comprise the chemical treatment layer of substrate, substrate front side, the conductive coating of substrate back, and the dope layer of chemical treatment layer outside, it is characterized in that there are the conductive strips of exposed chemical treatment layer at least one opposite side edge, the front of described coated metallic plate.
2. coated metallic plate according to claim 1 is characterized in that, described conductive strips are two ribbon zones along opposite side edge runs parallel.
3. coated metallic plate according to claim 1 and 2 is characterized in that the width of described conductive strips is identical.
4. coated metallic plate according to claim 3 is characterized in that described dope layer comprises primer coating and topcoat.
5. coated metallic plate according to claim 1 and 2 is characterized in that the conductive coating of described substrate back is specially the inorganic conductive coating of anti-the fingerprint.
6. coated metallic plate according to claim 5 is characterized in that, described substrate is cold-rolled steel sheet, hot-dip galvanizing sheet steel, plated steel sheet or alloy-steel plate.
7. coated metallic plate according to claim 1 and 2 is characterized in that, described coated metallic plate also comprises the diaphragm that is positioned at outside the described dope layer.
8. coated metallic plate according to claim 4 is characterized in that, described coated metallic plate also comprises the diaphragm that is positioned at outside the described topcoat.
9. coated metallic plate according to claim 4 is characterized in that, described coated metallic plate also comprises the diaphragm that is positioned at outside the described dope layer.
10. coated metallic plate according to claim 5 is characterized in that, described coated metallic plate also comprises the diaphragm that is positioned at outside the described dope layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100938331A CN101466254B (en) | 2008-04-30 | 2008-04-30 | Coating metallic plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100938331A CN101466254B (en) | 2008-04-30 | 2008-04-30 | Coating metallic plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101466254A CN101466254A (en) | 2009-06-24 |
| CN101466254B true CN101466254B (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100938331A Active CN101466254B (en) | 2008-04-30 | 2008-04-30 | Coating metallic plate |
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| Country | Link |
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| CN (1) | CN101466254B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622650B (en) * | 2011-01-26 | 2016-09-21 | 江苏明星减震器有限公司 | Baking vanish processing evaluation system and method |
| WO2013160566A1 (en) | 2012-04-25 | 2013-10-31 | Arcelormittal Investigacion Y Desarrollo, S.L. | Method for producing a metal sheet having oiled zn-al-mg coatings, and corresponding metal sheet |
| CN112170143A (en) * | 2019-07-02 | 2021-01-05 | 深圳Tcl数字技术有限公司 | Metal back plate, display device and pre-coating method of metal back plate |
| CN116612913A (en) * | 2023-06-26 | 2023-08-18 | 德瑞宝(中国)复合材料有限公司 | Polymer conductive composite material and production method thereof |
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| Publication number | Publication date |
|---|---|
| CN101466254A (en) | 2009-06-24 |
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Assignee: HEFEI HAIER SPECIAL STEEL PLATE RESEARCH & DEVELOPMENT Co.,Ltd. Assignor: HAIER Group Corp.|QINGDAO HAIER SPECIAL STEEL PLATE RESEARCH AND DEVELOPMENT Co.,Ltd. Contract record no.: 2012340000006 Denomination of invention: Method and equipment for processing coated metallic plate Granted publication date: 20101103 License type: Exclusive License Open date: 20090624 Record date: 20120202 |
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Effective date of registration: 20151130 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER SPECIAL STEEL PLATE RESEARCH AND DEVELOPMENT Co.,Ltd. Address before: 266101, Haier Industrial Park, 1 Haier Road, hi tech park, Laoshan District, Shandong, Qingdao Patentee before: HAIER Group Corp. Patentee before: QINGDAO HAIER SPECIAL STEEL PLATE RESEARCH AND DEVELOPMENT Co.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 266000 Haier Industrial Park, No. 236, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Patentee after: QINGDAO HBIS COMPOSITE NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Qingdao, Shandong. Patentee before: QINGDAO HAIER SPECIAL STEEL PLATE RESEARCH AND DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20180530 Address after: 266000 Haier Industrial Park, No. 236, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Co-patentee after: HEFEI HEGANG NEW MATERIAL TECHNOLOGY Co.,Ltd. Patentee after: QINGDAO HBIS COMPOSITE NEW MATERIAL TECHNOLOGY CO.,LTD. Address before: 266000 Haier Industrial Park, No. 236, Qian Wan Gang Road, Qingdao economic and Technological Development Zone, Shandong Patentee before: QINGDAO HBIS COMPOSITE NEW MATERIAL TECHNOLOGY CO.,LTD. |
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