CN103834942B - Multifunction surface processing pond and its hair blackening liquid - Google Patents
Multifunction surface processing pond and its hair blackening liquid Download PDFInfo
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- CN103834942B CN103834942B CN201310622839.4A CN201310622839A CN103834942B CN 103834942 B CN103834942 B CN 103834942B CN 201310622839 A CN201310622839 A CN 201310622839A CN 103834942 B CN103834942 B CN 103834942B
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- pipeline
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- way valve
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- 239000007788 liquid Substances 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000003860 storage Methods 0.000 claims abstract description 18
- 238000009826 distribution Methods 0.000 claims abstract description 10
- 238000004062 sedimentation Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 6
- 239000000523 sample Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 241000370738 Chlorion Species 0.000 description 2
- 235000005979 Citrus limon Nutrition 0.000 description 2
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 description 2
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 description 2
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003995 emulsifying agent Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 description 2
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 description 2
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 1
- 244000248349 Citrus limon Species 0.000 description 1
- 244000131522 Citrus pyriformis Species 0.000 description 1
- QXNVGIXVLWOKEQ-UHFFFAOYSA-N Disodium Chemical compound [Na][Na] QXNVGIXVLWOKEQ-UHFFFAOYSA-N 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 229960003975 potassium Drugs 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- 229960002635 potassium citrate Drugs 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- 235000011082 potassium citrates Nutrition 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- MCAHWIHFGHIESP-UHFFFAOYSA-N selenous acid Chemical compound O[Se](O)=O MCAHWIHFGHIESP-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Chemical Treatment Of Metals (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
A kind of multifunction surface processing pond and its hair blackening liquid, including processing pond, four way valve, controller, four way valve first port is connected by pipeline with first check-valve, and first check-valve is connected with the first high-pressure hydraulic pump, storage cistern, comprehensive pool, sedimentation basin successively by pipeline；Four way valve second port is connected by pipeline with air pressure pump；The port of the four-way valve family status three is connected with second check-valve, the second high-pressure hydraulic pump, comprehensive liquid storage pool successively by pipeline, and the port of the four-way valve family status four is connected with water inlet pipe, and water inlet pipe is connected with water distribution pipe.The present invention has the characteristics of flow is simple, reasonable in design, with low cost, floor space is small, pass through the different material trough of the reasonable opening and closing connection of four way valve and processing pond, switching is very convenient, processing pond integrates a variety of functions of comprehensive groove, rinsing bowl, hurricane drier, realize that a groove is used, production efficiency is high, and spray hair blackening liquid processing only needs the processing time of 35 minutes, 40 80 minutes compared to existing process to greatly shorten.
Description
Technical field
The present invention relates to a kind of Workpiece surface treatment equipment, more particularly, to a kind of multifunction surface processing pond and its nigrescence
Liquid.
Background technology
In machinery production, many workpiece need to carry out blackening process to surface, and it is that one layer of cause is formed in metal surface
Close oxide-film, reaches the purpose of isolation air and antirust.Washed away by taking room temperature blackening as an example, it is necessary to which workpiece is entered in degreaser
Workpiece surface grease, then water-washes away degreaser, then carries out pickling to workpiece, removes workpiece iron rust, then washes, enter again
Dried up after workpiece washing after row blackening process, nigrescence, grease.Because the process of processing is relatively more, to be generally equipped with many
Individual treatment trough groove（Pond）, handling large-scale workpiece and during Complicated Steel Members, because of this workpiece size itself greatly, need to specially make with
Supporting treatment trough, such as degreasing tank, oil removing rinse bath, derusting groove, the comprehensive groove of derusting, secondary rinsing bowl, nigrescence groove, black clear
Washing trough, immersion cell etc., not only construction cost is high, and takes the space of a large amount of plant buildings.
The content of the invention
It is an object of the invention to provide a kind of multifunction surface processing pond, with improve existing blackening process to use it is several
Treatment trough, treatment trough production cost are high, floor space is big, the low technical problem of production efficiency.
The present invention mainly solves above-mentioned technical problem by following technical proposals：A kind of multifunction surface processing pond,
Including processing pond, four way valve, controller, the four way valve first port is connected by pipeline with first check-valve, and first
Check-valves is connected by pipeline with the first high-pressure hydraulic pump, and the first high-pressure hydraulic pump is connected by pipeline with storage cistern, and storage cistern passes through
Pipeline is connected with comprehensive pool, and comprehensive pool is connected by pipeline with sedimentation basin, the draining that sedimentation basin passes through pipeline and processing pond bottom
Valve is connected；Four way valve second port is connected by pipeline with air pressure pump；Stopped by pipeline with second the port of the four-way valve family status three
Valve connection is returned, second check-valve is connected by pipeline with the second high-pressure hydraulic pump, the second high-pressure hydraulic pump is store by pipeline with comprehensive liquid
Pond connection is deposited, comprehensive liquid storage pool is built with hair blackening liquid；The port of the four-way valve family status four is connected with water inlet pipe, water inlet pipe be provided with into
Penstock, inlet valve is connected with the water distribution pipe inside processing pond, and water distribution pipe is provided with multiple nozzles, and processing pond is provided with
PH value detection probe.
Preferably, the water distribution pipe is provided with flow control valve.
Preferably, the four way valve first port, second port, the 3rd near ports are equipped with electrode point pressure
Table.
Preferably, the four way valve, flow control valve, electrode points pressure gauge, pH value detection probe, air pressure pump,
One high-pressure hydraulic pump, the second high-pressure hydraulic pump are connected with controller.
A kind of hair blackening liquid applied to the multifunction surface processing pond, the composition and proportioning of the hair blackening liquid are：Peroxidating
20~30g/L of manganese, the g/L of selenium dioxide 4~5, the g/L of nickel sulfate 2~3, the g/L of selenous acid 2~3, the g/L of calcium phosphate 3~4, lemon
Lemon acid potassium 2~4 g/L, the g/L of lauryl sodium sulfate 0.1~0.3, the g/L of disodium ethylene diamine tetraacetate 0.5~0.8, phosphatase 11 0
G/L, Nonyl pheno (10) ether (TX-10) emulsifying agent 5 g/L, hydroquinones 1~1.5 g/L, water 1L.
The hair blackening liquid is typical water base environmental protection formulae.It is anticorrosive to wait special with the time of nigrescence is short, color is uniform, firmly
Point.And without strong acid, chlorion composition, do not corrode metal, do not produce acid mist and pernicious gas, free from extraneous odour, not injured skin.
With reference to this multifunction surface processing pond, its treatment effeciency is very high, and safe operation, discharge close friend.
The present invention has the characteristics of flow is simple, reasonable in design, with low cost, floor space is small, passes through four way valve
The different material trough of rationally opening and closing connection and processing pond, switching are very convenient, and it is many that processing pond collection integrates groove, rinsing bowl, hurricane drier
Function is planted in one, realizes that a groove is used, production efficiency is high, spray hair blackening liquid processing is only needed 3-5 minutes, compared to existing process
The processing time of 40-80 minutes, its processing time greatly shortens.The infusion of financial resources of present treatment pond is few, and instant effect, economic benefit shows
Write, and greatly reduce the floor space of equipment.The invention improves that existing equipment cost is high, bulky deficiency well,
Therefore with good practical value.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is present invention control circuit block diagram.
Embodiment
With reference to the accompanying drawings and detailed description, technical scheme is described in further detail.Fig. 1 is
The structural representation of the present invention, Fig. 2 is present invention control circuit block diagram.
As seen from the figure, the multifunction surface processing pond, including processing pond 1, four way valve 2, controller etc..Its four way valve
2 first port a are connected by pipeline with first check-valve 21, and first check-valve 21 is connected by pipeline with the first high-pressure hydraulic pump 22
Connect, the first high-pressure hydraulic pump 22 is connected by pipeline with storage cistern 23, and storage cistern 23 is connected by pipeline with comprehensive pool 24, comprehensive pool
24 are connected by pipeline with sedimentation basin 25, are equipped between storage cistern 23 and comprehensive pool 24, between comprehensive pool 24 and sedimentation basin 25
Elevator pump 251, sedimentation basin 25 is connected by pipeline with the draining valve 11 of the bottom of processing pond 1, and processing pond 1 is detected provided with pH value and visited
First 12.The second port b of four way valve 2 is connected by pipeline with air pressure pump 26；The port c of four way valve 2 the 3rd passes through pipeline and
Two check-valves 27 are connected, and second check-valve 27 is connected by pipeline with the second high-pressure hydraulic pump 28, and the second high-pressure hydraulic pump 28 passes through pipe
Road is connected with comprehensive liquid storage pool 29, and comprehensive liquid storage pool 29 is built with hair blackening liquid 291；First port a, second port b, the 3rd
Electrode points pressure gauge 20 is equipped near the c of port.
The composition of hair blackening liquid is 20~30g/L of manganese peroxide, the g/L of selenium dioxide 4~5, the g/L of nickel sulfate 2~3, sub- selenium
Acid 2~3 g/L, the g/L of calcium phosphate 3~4, the g/L of potassium citrate 2~4, the g/L of lauryl sodium sulfate 0.1~0.3, ethylenediamine
The g/L of tetraacethyl disodium 0.5~0.8, phosphatase 11 0 g/L, TX-10 (Nonyl pheno (10) ether) emulsifying agent 5 g/L is right
Benzenediol 1~1.5 g/L, water 1L.The hair blackening liquid has the nigrescence time short（Blackening process is only needed 3-5 minutes）, color is uniform, jail
Gu, the features such as anticorrosive.And without strong acid, chlorion composition, do not corrode metal, be typical water base environment-friendly products.
The port d of four way valve 2 the 4th is connected with water inlet pipe, and water inlet pipe 3 is provided with inlet valve 31, inlet valve 31 and place
Water distribution pipe 32 inside reason pond 1 is connected, and water distribution pipe 32 is provided with flow control valve 33, and water distribution pipe 32 is provided with multiple sprays
Mouth 34.
Four way valve 2, flow control valve 33, electrode points pressure gauge 20, pH value detection probe 12, air pressure pump 26, first are high
Water pump 22, the second high-pressure hydraulic pump 28 are connected with controller.
When the multifunction surface processing pond works, first workpiece is sent into processing pond 1, four way valve 2 is adjusted, first is opened
High-pressure hydraulic pump 22 and draining valve 11, make the water in storage cistern 23 flow through first port a, the 4th port d, inlet valve 31, nozzle
34, after being cleaned to workpiece surface, inlet valve 31 is closed, the pressure of electrode points pressure gauge 20 near first port a reaches
To after preset value, the first high-pressure hydraulic pump 22 is closed automatically.
Then four way valve 2 is adjusted, the second high-pressure hydraulic pump 28 is opened, makes to integrate the hair blackening liquid 291 in liquid storage pool 29 and pass through
3rd port c, the 4th port d, inlet valve 31, nozzle 34, carry out integrating cleaning to workpiece, go after the removal of impurity, iron rust, black
Processing 3-5 minutes.The second high-pressure hydraulic pump 28 is then shut off, switches four way valve 2, the water in storage cistern 23 is flowed through first port
A, the 4th port d, inlet valve 31, nozzle 34, cleaning showers after being integrated to workpiece surface, pH value detection probe 12 can be real
When monitor discharging liquid pH value, after requirement is reached, the first high-pressure hydraulic pump 22 can be closed automatically.
Finally adjust four way valve 2, open air pressure pump 26, air through second port b, the 4th port d, inlet valve 31,
Nozzle 34, sprays to workpiece surface, after after workpiece surface drying, closes inlet valve 31, treats that the electrode near second port b is pressed
When power table 20 reaches preset pressure, air pump 26 stops.
Raffinate from the discharge of processing pond 1 is gone after the flocculent deposit in residul liquid-removing and suspension through pipeline inflow sedimentation basin 25,
Raffinate carries out quenched, regulation pH value at comprehensive pool 24, and then liquid feeding storage cistern 23, repeats profit during so as to subsequent operation
With.
Flow control valve 33 can be turned on and off when needing, and to control the usage quantity of nozzle 34, reach tune
Water saving, the purpose of throughput.
Claims (4)
1. a kind of multifunction surface processing pond, including processing pond, four way valve, controller, it is characterized in that the four-way valve family status
Single port is connected by pipeline with first check-valve, and first check-valve is connected by pipeline with the first high-pressure hydraulic pump, the first high pressure
Water pump is connected by pipeline with storage cistern, and storage cistern is connected by pipeline with comprehensive pool, and comprehensive pool is connected by pipeline and sedimentation basin
Connect, sedimentation basin is connected by pipeline with the draining valve of processing pond bottom；Four way valve second port is connected by pipeline and air pressure pump
Connect；The port of the four-way valve family status three is connected by pipeline with second check-valve, and second check-valve passes through pipeline and the second high-pressure hydraulic pump
Connection, the second high-pressure hydraulic pump is connected by pipeline with comprehensive liquid storage pool, and comprehensive liquid storage pool is built with hair blackening liquid；Four way valve
4th port is connected with water inlet pipe, and water inlet pipe is provided with inlet valve, and inlet valve is connected with the water distribution pipe inside processing pond,
Water distribution pipe is provided with multiple nozzles, and processing pond is provided with pH value detection probes.
2. the multifunction surface processing pond according to claim 1, it is characterized in that the water distribution pipe is provided with flow control
Valve processed.
3. the multifunction surface processing pond according to claim 1, it is characterized in that the four way valve first port, second
Port, the 3rd near ports are equipped with electrode points pressure gauge.
4. the multifunction surface processing pond according to claim 2 or 3, it is characterized in that the four way valve, flow are controlled
Valve, pH values detection probe, air pressure pump, the first high-pressure hydraulic pump, the second high-pressure hydraulic pump are connected with controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622839.4A CN103834942B (en) | 2013-11-30 | 2013-11-30 | Multifunction surface processing pond and its hair blackening liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310622839.4A CN103834942B (en) | 2013-11-30 | 2013-11-30 | Multifunction surface processing pond and its hair blackening liquid |
Publications (2)
| Publication Number | Publication Date |
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| CN103834942A CN103834942A (en) | 2014-06-04 |
| CN103834942B true CN103834942B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310622839.4A Expired - Fee Related CN103834942B (en) | 2013-11-30 | 2013-11-30 | Multifunction surface processing pond and its hair blackening liquid |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363672B (en) * | 2014-11-30 | 2016-02-17 | 浙江博海金属制品科技有限公司 | A heating device for blackened stainless steel |
| CN106676614B (en) * | 2017-03-08 | 2018-09-25 | 亿鸿环保机械(苏州)有限公司 | A kind of single-station Multi-functional Electroplating machine |
| CN108034920A (en) * | 2017-12-22 | 2018-05-15 | 刘珍 | A kind of method of automobile wheel hub surface blackening process |
| CN108193198B (en) * | 2018-01-23 | 2024-02-02 | 胡杰 | Device for organically combining blackening and washing of workpiece and treatment method thereof |
| CN115652294B (en) * | 2022-09-26 | 2024-09-10 | 南京升华南钢金属材料有限公司 | Online phosphating device and process for bearing steel wire |
Citations (5)
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|---|---|---|---|---|
| US4361605A (en) * | 1980-05-12 | 1982-11-30 | Toyota Jidosha Kabushiki Kaisha | Apparatus used in surface treatment and a method of surface treatment using said apparatus |
| CN102021548A (en) * | 2010-12-18 | 2011-04-20 | 江苏德美科技有限公司 | Blackening agent used for steel and iron surface at room temperature and preparation method for blackening agent at room temperature |
| CN102899650A (en) * | 2012-10-23 | 2013-01-30 | 自贡勃生表面技术推广有限公司 | Steel normal-temperature blackening solution composite film-forming accelerator, steel normal-temperature blackening solution and preparation method of steel normal-temperature blackening solution |
| CN102965650A (en) * | 2012-11-15 | 2013-03-13 | 中国科学院金属研究所 | Blackening layer and organic coating dual-protective method of neodymium iron boron magnetic material surface |
| CN102994996A (en) * | 2012-12-06 | 2013-03-27 | 三达奥克化学股份有限公司 | Non-toxic and environment-friendly steel normal temperature blackening treatment agent and preparation method |
-
2013
- 2013-11-30 CN CN201310622839.4A patent/CN103834942B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4361605A (en) * | 1980-05-12 | 1982-11-30 | Toyota Jidosha Kabushiki Kaisha | Apparatus used in surface treatment and a method of surface treatment using said apparatus |
| CN102021548A (en) * | 2010-12-18 | 2011-04-20 | 江苏德美科技有限公司 | Blackening agent used for steel and iron surface at room temperature and preparation method for blackening agent at room temperature |
| CN102899650A (en) * | 2012-10-23 | 2013-01-30 | 自贡勃生表面技术推广有限公司 | Steel normal-temperature blackening solution composite film-forming accelerator, steel normal-temperature blackening solution and preparation method of steel normal-temperature blackening solution |
| CN102965650A (en) * | 2012-11-15 | 2013-03-13 | 中国科学院金属研究所 | Blackening layer and organic coating dual-protective method of neodymium iron boron magnetic material surface |
| CN102994996A (en) * | 2012-12-06 | 2013-03-27 | 三达奥克化学股份有限公司 | Non-toxic and environment-friendly steel normal temperature blackening treatment agent and preparation method |
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| CN103834942A (en) | 2014-06-04 |
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| CB02 | Change of applicant information |
Address after: 433000, Xiantao Province, Hubei Peng Wang Lake Industrial Park Applicant after: HUBEI QIAOGUANG PETROCHEMICAL EQUIPMENT CO., LTD. Address before: 433000, Xiantao Province, Hubei Peng Wang Lake Industrial Park Applicant before: HUBEI QIAOGUANG PETROCHEMICAL MACHINERY CO., LTD. |
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| CB03 | Change of inventor or designer information |
Inventor after: Du Zhihai Inventor after: Wen Changhong Inventor after: Wang Shaohua Inventor before: Hu Sihai Inventor before: Du Zhihai Inventor before: Wen Ruiming |
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