CN112281145A - Liquid medicine online reduction method and device for plating black titanium on stainless steel - Google Patents
Liquid medicine online reduction method and device for plating black titanium on stainless steel Download PDFInfo
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- CN112281145A CN112281145A CN202010992657.6A CN202010992657A CN112281145A CN 112281145 A CN112281145 A CN 112281145A CN 202010992657 A CN202010992657 A CN 202010992657A CN 112281145 A CN112281145 A CN 112281145A
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- tank
- liquid medicine
- reduction
- electrolytic
- stainless steel
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/52—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating using reducing agents for coating with metallic material not provided for in a single one of groups C23C18/32 - C23C18/50
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1617—Purification and regeneration of coating baths
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Electrochemistry (AREA)
- Inorganic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention provides a liquid medicine online reduction method and a device for plating black titanium on stainless steel, wherein the method comprises the following steps: 1) introducing the liquid medicine in the liquid medicine tank into a reduction tank; 2) a trivalent chromium electrolysis machine is arranged in the reduction tank, and the liquid medicine is used for oxidizing trivalent chromium in the liquid medicine into hexavalent chromium under the electrolysis action of the trivalent chromium electrolysis machine; 3) and (4) guiding the redox liquid medicine back to the liquid medicine tank. The invention can reduce the trivalent chromium in the black titanium liquid medicine into hexavalent chromium, reduce the content of the trivalent chromium in the liquid medicine, ensure that the liquid medicine can be continuously recycled, and reduce the pollution to the environment when being discharged.
Description
Technical Field
The invention relates to the field of stainless steel processing, in particular to a liquid medicine online reduction method and device for plating black titanium on stainless steel.
Background
The titanium plating of stainless steel generally comprises two methods, namely water plating and vacuum plating. Wherein, the step of plating the stainless steel with the black titanium refers to that the stainless steel plate is put into a chemical agent water tank to carry out chemical reaction, and finally the blackened plate surface is obtained. The existing method for plating black titanium by water generally comprises the steps that a stainless steel belt continuously penetrates through a liquid medicine tank to contact and react with liquid medicine in the tank, but with the increase of the titanium plating time, the content of trivalent chromium in the liquid medicine continuously rises, so that the titanium plating liquid medicine is continuously aged and deteriorated, and the liquid medicine is easy to cause environmental pollution if directly discharged.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a method and a device for reducing liquid medicine for plating black titanium on stainless steel on line, which can oxidize and reduce trivalent chromium in the black titanium liquid medicine into hexavalent chromium, reduce the content of the trivalent chromium in the liquid medicine, enable the liquid medicine to be continuously recycled, and reduce the pollution to the environment when being discharged.
The technical scheme adopted by the invention is as follows:
a method for manufacturing titanium-plated stainless steel by adopting water-plated black titanium comprises the following steps:
1) introducing the liquid medicine in the liquid medicine tank into a reduction tank;
2) a trivalent chromium electrolysis machine is arranged in the reduction tank, and the liquid medicine is used for oxidizing trivalent chromium in the liquid medicine into hexavalent chromium under the electrolysis action of the trivalent chromium electrolysis machine;
3) and (4) guiding the redox liquid medicine back to the liquid medicine tank.
Further, the electrolysis comprises: and carrying out oxidation-reduction reaction on electrolyte in an electrolytic tank of the electrolytic machine and trivalent chromium ions in the liquid medicine under the electrified condition to obtain hexavalent chromium ions.
Further, the electrolyte is a chromic acid solution having a solubility of 5%.
Further, the electrolytic tank is a ceramic tank.
Further, the electrolysis current of the electrolysis machine was 3000A.
The liquid medicine online reduction device for plating the stainless steel with the black titanium comprises a liquid medicine tank, a reduction tank and an electrolytic machine, wherein the liquid medicine for plating the stainless steel with the black titanium is filled in the liquid medicine tank, the reduction tank is communicated with a liquid outlet of the liquid medicine tank, the liquid medicine in the liquid medicine tank flows into the reduction tank from the liquid outlet, the electrolytic machine comprises an electrolytic tank, electrolyte is filled in the electrolytic tank, the electrolytic tank is arranged in the reduction tank and is in contact with the liquid medicine in the reduction tank, and the reduction tank is also communicated with a liquid inlet of the liquid medicine tank; when the electrolytic machine is electrified to work, the electrolytic machine and the liquid medicine in the reduction tank are subjected to electrolytic reaction to oxidize trivalent chromium in the liquid medicine into hexavalent chromium, and the liquid medicine after oxidation and reduction is guided back to the liquid medicine tank through the liquid inlet.
Furthermore, the bottom of the reduction tank is also provided with a precipitation interlayer, and the upper side of the precipitation interlayer separates the upper part of the reduction tank from the precipitation interlayer through a mesh clapboard.
Further, the electrolyte is a chromic acid solution having a solubility of 5%, and the electrolytic tank is a ceramic tank.
Furthermore, a switch is arranged at the bottom of the electrolytic tank, and the electrolyte in the electrolytic tank can be discharged into the reduction tank by opening the switch.
The invention has the beneficial effects that:
the method of the invention is that on the premise of not interrupting the manufacturing process of plating black titanium on the stainless steel water, the liquid medicine in the liquid medicine tank is electrolyzed and reduced in the reduction tank in an on-line circulation mode, so as to oxidize and reduce trivalent chromium ions generated in the liquid medicine into hexavalent chromium ions, and the reduced liquid medicine is continuously supplied to the liquid medicine tank for continuous circulation use, thereby achieving the purpose of on-line reduction. The method reduces the content of trivalent chromium in the liquid medicine, enables the liquid medicine to be continuously recycled, and can reduce the pollution to the environment when being discharged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings, there is shown in the drawings,
FIG. 1: the invention discloses a flow chart of a liquid medicine online reduction method for plating black titanium on stainless steel;
FIG. 2: the structural schematic diagram of the liquid medicine online reduction device for plating the stainless steel with the black titanium in the embodiment of the invention.
Names and designations of parts
1-a liquid medicine tank;
2-reduction tank;
3-an electrolytic tank;
4-mesh partition board;
5, switching;
6-stainless steel.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to the attached drawing 1, the embodiment of the invention discloses an online reduction method of a liquid medicine for plating black titanium on stainless steel, which comprises the following steps:
1) introducing the liquid medicine in the liquid medicine tank into a reduction tank;
2) a trivalent chromium electrolysis machine is arranged in the reduction tank, and the liquid medicine is used for oxidizing trivalent chromium in the liquid medicine into hexavalent chromium under the electrolysis action of the trivalent chromium electrolysis machine;
3) and (4) guiding the redox liquid medicine back to the liquid medicine tank.
Further, the electrolysis comprises: and carrying out oxidation-reduction reaction on electrolyte in an electrolytic tank of the electrolytic machine and trivalent chromium ions in the liquid medicine under the electrified condition to obtain hexavalent chromium ions.
Further, the electrolyte is a chromic acid solution having a solubility of 5%.
Further, the electrolytic tank is a ceramic tank.
Further, the electrolysis current of the electrolysis machine was 3000A.
Referring to fig. 2, the embodiment further discloses an online reduction device for liquid medicine for plating black titanium on stainless steel water, which includes a liquid medicine tank 1, a reduction tank 2 and an electrolytic machine, wherein the liquid medicine tank 1 is filled with liquid medicine for plating black titanium on stainless steel 6 water, the reduction tank 2 is communicated with a liquid outlet 11 of the liquid medicine tank 1, the liquid medicine in the liquid medicine tank 1 flows into the reduction tank 2 from the liquid outlet 11, the electrolytic machine includes an electrolytic tank 3, the electrolytic tank 3 is filled with electrolyte, the electrolytic tank 3 is placed in the reduction tank 2 and contacts with the liquid medicine in the reduction tank 2, and the reduction tank 2 is further communicated with a liquid inlet 12 of the liquid medicine tank 1; when the electrolytic machine is electrified to work, the electrolytic machine and the liquid medicine in the reduction tank 2 are subjected to electrolytic reaction to oxidize trivalent chromium in the liquid medicine into hexavalent chromium, and the liquid medicine after oxidation and reduction is guided back to the liquid medicine tank 1 through the liquid inlet 12.
Furthermore, the bottom of the reduction tank 2 is also provided with a precipitation barrier, and the upper side of the precipitation barrier separates the upper part of the reduction tank 2 from the precipitation barrier through a mesh partition 4.
Further, the electrolyte is a chromic acid solution having a solubility of 5%, and the electrolytic tank 3 is a ceramic tank.
Further, a switch 5 is arranged at the bottom of the electrolytic tank 3, and the electrolyte in the electrolytic tank 3 can be discharged into the reduction tank 2 by opening the switch 5. When the electrolyte in the electrolytic tank 3 is reduced to a certain solubility after use, new electrolyte needs to be replaced, at the moment, the switch 5 is only needed to be turned on, the residual electrolyte in the electrolytic tank 3 is directly discharged into the reduction tank 2, then the switch 5 is turned off, and the new electrolyte is poured into the electrolytic tank 3 from the upper part of the electrolytic tank 3 to continue working.
In conclusion, the method of the invention is that on the premise of not interrupting the manufacturing process of plating black titanium on stainless steel water, the liquid medicine in the liquid medicine tank is subjected to electrolytic reduction in the reduction tank in an online circulation mode, so as to oxidize and reduce trivalent chromium ions generated in the liquid medicine into hexavalent chromium ions, and the reduced liquid medicine is continuously supplied to the liquid medicine tank for continuous circulation use, thereby achieving the purpose of online reduction. The method reduces the content of trivalent chromium in the liquid medicine, enables the liquid medicine to be continuously recycled, and can reduce the pollution to the environment when being discharged.
Any combination of the various embodiments of the present invention should be considered as disclosed in the present invention, unless the inventive concept is contrary to the present invention; within the scope of the technical idea of the invention, any combination of various simple modifications and different embodiments of the technical solution without departing from the inventive idea of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. An online reduction method of a liquid medicine for plating black titanium on stainless steel comprises the following steps:
1) introducing the liquid medicine in the liquid medicine tank into a reduction tank;
2) a trivalent chromium electrolysis machine is arranged in the reduction tank, and the liquid medicine is used for oxidizing trivalent chromium in the liquid medicine into hexavalent chromium under the electrolysis action of the trivalent chromium electrolysis machine;
3) and (4) guiding the redox liquid medicine back to the liquid medicine tank.
2. The on-line reduction method for the stainless steel to plate the black titanium by the chemical solution according to claim 1, wherein the electrolysis comprises: and carrying out oxidation-reduction reaction on electrolyte in an electrolytic tank of the electrolytic machine and trivalent chromium ions in the liquid medicine under the electrified condition to obtain hexavalent chromium ions.
3. The on-line reduction method for plating black titanium on stainless steel according to claim 2, wherein the electrolyte is a chromic acid solution having a solubility of 5%.
4. The on-line reduction method for stainless steel black titanium plating by chemical solution according to claim 2, characterized in that the electrolytic tank is a ceramic tank.
5. The on-line reduction method for stainless steel black titanium plating by chemical solution according to claim 1, characterized in that the electrolysis current of the electrolysis machine is 3000A.
6. The liquid medicine online reduction device for plating the stainless steel with the black titanium is characterized by comprising a liquid medicine tank, a reduction tank and an electrolytic machine, wherein the liquid medicine for plating the stainless steel with the black titanium is filled in the liquid medicine tank, the reduction tank is communicated with a liquid outlet of the liquid medicine tank, the liquid medicine in the liquid medicine tank flows into the reduction tank from the liquid outlet, the electrolytic machine comprises an electrolytic tank, electrolyte is filled in the electrolytic tank, the electrolytic tank is placed in the reduction tank and is in contact with the liquid medicine in the reduction tank, and the reduction tank is also communicated with a liquid inlet of the liquid medicine tank; when the electrolytic machine is electrified to work, the electrolytic machine and the liquid medicine in the reduction tank are subjected to electrolytic reaction to oxidize trivalent chromium in the liquid medicine into hexavalent chromium, and the liquid medicine after oxidation and reduction is guided back to the liquid medicine tank through the liquid inlet.
7. The on-line reduction device for chemical solution used for plating black titanium on stainless steel water as claimed in claim 6, wherein a settling barrier is further provided at the bottom of the reduction tank, and the upper side of the settling barrier separates the upper part of the reduction tank from the settling barrier by a mesh partition.
8. The on-line reduction device for chemical solution used for plating stainless steel with black titanium according to claim 6, wherein the electrolyte is chromic acid solution with a solubility of 5%, and the electrolytic tank is ceramic tank.
9. The on-line reduction device for stainless steel water coated with black titanium according to claim 8, wherein the bottom of the electrolytic tank is provided with a switch, and the electrolyte in the electrolytic tank can be discharged into the reduction tank by opening the switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992657.6A CN112281145B (en) | 2020-09-21 | 2020-09-21 | Liquid medicine online reduction method and device for plating black titanium on stainless steel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992657.6A CN112281145B (en) | 2020-09-21 | 2020-09-21 | Liquid medicine online reduction method and device for plating black titanium on stainless steel |
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| CN112281145A true CN112281145A (en) | 2021-01-29 |
| CN112281145B CN112281145B (en) | 2023-04-07 |
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| CN202010992657.6A Active CN112281145B (en) | 2020-09-21 | 2020-09-21 | Liquid medicine online reduction method and device for plating black titanium on stainless steel |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2207095A1 (en) * | 1972-11-17 | 1974-06-14 | Studelec | Electrolytic chromium removal from effluent - obtd from chromating or passivating steel or from anodising baths |
| US3948738A (en) * | 1974-01-29 | 1976-04-06 | Kabushiki Kaisha Fuji Kuromu Sha | Process for the regeneration of exhausted chromium-plating solutions by two-stage diaphragm electrolysis |
| US6063252A (en) * | 1997-08-08 | 2000-05-16 | Raymond; John L. | Method and apparatus for enriching the chromium in a chromium plating bath |
| US20020185382A1 (en) * | 1999-04-01 | 2002-12-12 | Jean-Francois Fauvarque | Method for electrochemical treatment of effluents, especially effluents from leather tanneries, comprising chromium salts |
| US20080223730A1 (en) * | 2005-11-30 | 2008-09-18 | Industrie De Nora S. P.A. | Electrochemical treatment of solutions containing hexavalent chromium |
| JP2009024186A (en) * | 2007-07-17 | 2009-02-05 | Daiso Co Ltd | Method and apparatus for regenerating chromium plating solution |
| CN105543906A (en) * | 2015-12-16 | 2016-05-04 | 武汉材料保护研究所 | Method for transforming existing hexavalent chromium plating solution into new trivalent chromium plating solution |
-
2020
- 2020-09-21 CN CN202010992657.6A patent/CN112281145B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2207095A1 (en) * | 1972-11-17 | 1974-06-14 | Studelec | Electrolytic chromium removal from effluent - obtd from chromating or passivating steel or from anodising baths |
| US3948738A (en) * | 1974-01-29 | 1976-04-06 | Kabushiki Kaisha Fuji Kuromu Sha | Process for the regeneration of exhausted chromium-plating solutions by two-stage diaphragm electrolysis |
| US6063252A (en) * | 1997-08-08 | 2000-05-16 | Raymond; John L. | Method and apparatus for enriching the chromium in a chromium plating bath |
| US20020185382A1 (en) * | 1999-04-01 | 2002-12-12 | Jean-Francois Fauvarque | Method for electrochemical treatment of effluents, especially effluents from leather tanneries, comprising chromium salts |
| US20080223730A1 (en) * | 2005-11-30 | 2008-09-18 | Industrie De Nora S. P.A. | Electrochemical treatment of solutions containing hexavalent chromium |
| JP2009024186A (en) * | 2007-07-17 | 2009-02-05 | Daiso Co Ltd | Method and apparatus for regenerating chromium plating solution |
| CN105543906A (en) * | 2015-12-16 | 2016-05-04 | 武汉材料保护研究所 | Method for transforming existing hexavalent chromium plating solution into new trivalent chromium plating solution |
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| CN112281145B (en) | 2023-04-07 |
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