CN111850531A - Production method of whole roll of black titanium stainless steel - Google Patents
Production method of whole roll of black titanium stainless steel Download PDFInfo
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- CN111850531A CN111850531A CN202010585633.9A CN202010585633A CN111850531A CN 111850531 A CN111850531 A CN 111850531A CN 202010585633 A CN202010585633 A CN 202010585633A CN 111850531 A CN111850531 A CN 111850531A
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
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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
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/06—Etching of iron or steel
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Abstract
The invention provides a production method of whole-roll black titanium stainless steel, which comprises the following steps: sanding: firstly, a stainless steel coil is subjected to coarse grinding and fine grinding, so that the surface roughness and the brightness of the stainless steel can meet the 8K requirement; electrolysis: sending the frosted stainless steel coil into an electrolytic cell for electrolysis; (3) coloring: feeding the stainless steel coil subjected to electrolysis into a coloring tank for color plating to obtain a black titanium stainless steel coil; (4) cleaning: cleaning the colored black titanium stainless steel coil with desalted water; (5) drying: and drying the black titanium stainless steel coil obtained after cleaning through an electric oven. The production method of the whole roll of black titanium stainless steel can effectively improve the fingerprint resistance, dust resistance and oil stain resistance of the surface of the stainless steel plate, is easy to clean, has good plate surface uniformity, and has better pressure resistance, wear resistance and corrosion resistance.
Description
Technical Field
The invention relates to the technical field of stainless steel production, in particular to a production method of whole roll black titanium stainless steel.
Background
Stainless steel has good corrosion resistance, so that the stainless steel is widely applied to the fields of elevators, hardware household appliances, kitchen and bathroom appliances, architectural decoration and the like. The stainless steel plate surface is treated by a snowflake sand grinding process, a titanizing process, a sand grinding and wire drawing process and an oil film spraying process, the high-grade smooth surface and the pure and soft color are more gorgeous as decoration, and the added value and the market competitiveness of the product are greatly improved.
However, the black titanium stainless steel produced by the existing production method of the black titanium stainless steel has obvious Lab color difference at each position, uneven plate surface and poor fingerprint resistance, dust resistance and oil stain resistance.
Disclosure of Invention
The invention provides a production method of the whole roll of black titanium stainless steel, which can effectively improve the fingerprint resistance, dust resistance and oil stain resistance of the surface of the stainless steel plate, is easy to clean, has good plate surface uniformity and better pressure resistance, wear resistance and corrosion resistance.
The technical scheme adopted by the invention is as follows: a production method of whole roll of black titanium stainless steel comprises the following steps:
(1) sanding: firstly, a stainless steel coil is subjected to coarse grinding and fine grinding or sanding by an abrasive belt, so that the surface roughness and the brightness of the stainless steel can reach the 8K requirement;
(2) electrolysis: feeding the frosted stainless steel coil into an electrolytic cell for electrolysis, wherein the electrolyte is dilute sulfuric acid, the concentration of the dilute sulfuric acid is 2-10g/L, the pH value of the electrolyte is adjusted to be 5-6, the temperature in the electrolytic cell is controlled to be 30-40 ℃, and the current density is 12-20A;
(3) coloring: feeding the steel coil subjected to electrolysis into a coloring tank for color plating to obtain a black titanium stainless steel coil; wherein the solution in the coloring tank is mainly a mixed solution of sulfuric acid and chromic acid, the concentration of the sulfuric acid is 500g/L and the concentration of the chromic acid is 200g/L and 400 g/L;
(4) Cleaning: cleaning the colored black titanium stainless steel coil with desalted water;
(5) drying: and drying the black titanium stainless steel coil obtained after cleaning through an electric oven.
Further, (2) sending the stainless steel coil after being frosted into the electrolytic cell at the speed of 8-10m/min under the tension of 20-40 KN.
Further, in (3), the pH value of the solution is adjusted to 5-6, and the temperature in the coloring tank is controlled to 95-105 ℃.
Further, in the step (4), the pH value of the desalted water is controlled to be 6-7, and the conductivity is controlled to be less than or equal to 500 mu s/cm.
Further, (5) the temperature of the electric oven is controlled at 100 ℃ and 300 ℃.
Compared with the prior art, the production method of the whole-roll black titanium stainless steel has the advantages that the surface property of the stainless steel is greatly improved by carrying out electrolysis and coloring treatment on the surface of the stainless steel roll, so that the stainless steel has better pressure resistance, wear resistance and corrosion resistance, the fingerprint resistance, dust resistance and oil stain resistance of the stainless steel are further improved, the surface of the stainless steel is easier to clean, the uniformity of the surface of the stainless steel roll is greatly improved, and the experience of downstream users is improved.
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 relates to a flow chart of steps of a production method of a whole roll of black titanium 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.
As shown in fig. 1, the method for producing the whole roll of black titanium stainless steel of the present invention comprises the steps of:
(1) sanding: firstly, the stainless steel coil is subjected to coarse grinding and fine grinding or sanding by an abrasive belt, so that the surface roughness and the brightness of the stainless steel can reach the 8K requirement, and the effect required by the sand surface can be achieved.
(2) Electrolysis: and (3) feeding the frosted stainless steel coil into an electrolytic cell for electrolysis at the speed of 8-10m/min under the tension of 20-40 KN. Wherein the length of the electrolytic cell is 30m, and the electrolyte is dilute sulphuric acid (H)2SO4) The concentration of dilute sulphuric acid is 2-10g/L, the pH value of the electrolyte is adjusted to 5-6, and the electricity is controlledThe temperature in the decomposition pool is 30-40 ℃, and the current density is 12-20A.
(3) Coloring: feeding the stainless steel coil subjected to electrolysis into a coloring tank for color plating to obtain a black titanium stainless steel coil; wherein the solution in the coloring tank is mainly sulfuric acid (H)2SO4) And chromic acid (H)2CrO4) The concentration of the sulfuric acid is 400-500g/L, and the concentration of the chromic acid is 150-200 g/L. The pH value of the solution is adjusted to 5-6 in the coloring process, and the temperature in the coloring tank is controlled to 95-105 ℃.
(4) Cleaning: cleaning the colored black titanium stainless steel coil with desalted water; wherein the pH value of the desalted water is controlled to be 6-7, and the conductivity is controlled to be less than or equal to 500 mu s/cm.
(5) Drying: drying the black titanium stainless steel coil obtained after cleaning through an electric oven; wherein the temperature of the electric oven is controlled at 100-300 ℃ according to the surface property of the stainless steel.
In conclusion, the production method of the whole-roll black titanium stainless steel greatly improves the surface property of the stainless steel by carrying out electrolysis and coloring treatment on the surface of the stainless steel coil, so that the stainless steel has better pressure resistance, wear resistance and corrosion resistance, the fingerprint resistance, dust resistance and oil stain resistance of the stainless steel are further improved, the surface of the stainless steel is easier to clean, the uniformity of the surface of the stainless steel coil is greatly improved, and the experience of downstream users is improved.
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 (5)
1. The production method of the whole roll of black titanium stainless steel is characterized by comprising the following steps:
(1) sanding: firstly, a stainless steel coil is subjected to coarse grinding and fine grinding or sanding by an abrasive belt, so that the surface roughness and the brightness of the stainless steel can reach the 8K requirement;
(2) electrolysis: feeding the frosted stainless steel coil into an electrolytic cell for electrolysis, wherein the electrolyte is dilute sulfuric acid, the concentration of the dilute sulfuric acid is 2-10g/L, the pH value of the electrolyte is adjusted to be 5-6, the temperature in the electrolytic cell is controlled to be 30-40 ℃, and the current density is 12-20A;
(3) coloring: feeding the stainless steel coil subjected to electrolysis into a coloring tank for color plating to obtain a black titanium stainless steel coil; wherein the solution in the coloring tank is mainly a mixed solution of sulfuric acid and chromic acid, the concentration of the sulfuric acid is 500g/L and the concentration of the chromic acid is 200g/L and 400 g/L;
(4) cleaning: cleaning the colored black titanium stainless steel coil with desalted water;
(5) drying: and drying the black titanium stainless steel coil obtained after cleaning through an electric oven.
2. The method for producing a full-roll black titanium stainless steel according to claim 1, wherein: (2) and feeding the stainless steel coil after being frosted into an electrolytic cell at the speed of 8-10m/min under the tension of 20-40 KN.
3. The method for producing a full-roll black titanium stainless steel according to claim 1, wherein: (3) adjusting the pH value of the solution to 5-6, and controlling the temperature in the coloring tank to 95-105 ℃.
4. The method for producing a full-roll black titanium stainless steel according to claim 1, wherein: (4) in the method, the pH value of the desalted water is controlled to be 6-7, and the conductivity is controlled to be less than or equal to 500 mu s/cm.
5. The method for producing a full-roll black titanium stainless steel according to claim 1, wherein: (5) in the method, the temperature of the electric oven is controlled at 100-300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010585633.9A CN111850531A (en) | 2020-06-24 | 2020-06-24 | Production method of whole roll of black titanium stainless steel |
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| CN202010585633.9A CN111850531A (en) | 2020-06-24 | 2020-06-24 | Production method of whole roll of black titanium stainless steel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850639A (en) * | 2020-06-24 | 2020-10-30 | 肇庆宏旺金属实业有限公司 | Preparation method of black titanium fingerprint-resistant stainless steel coil |
| CN113088945A (en) * | 2021-03-30 | 2021-07-09 | 江门柒彩新材料有限公司 | Double-roll stainless steel water black titanium plating process |
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| SU374381A1 (en) * | 1971-01-25 | 1973-03-20 | К. Б. Кладницка , Н. Д. Иванова Институт общей , неорганической химии Украинской ССР | |
| US20080230393A1 (en) * | 2007-03-23 | 2008-09-25 | Fujifilm Corporation | Method and apparatus for producing conductive material |
| CN102061500A (en) * | 2011-01-20 | 2011-05-18 | 中南大学 | Coloring liquid and coloring method for chemically coloring stainless steel surface into black |
| CN102943246A (en) * | 2012-11-26 | 2013-02-27 | 四川材料与工艺研究所 | Method for preparing metal surface super-hydrophobicity aluminum coating |
| CN103710690A (en) * | 2013-08-27 | 2014-04-09 | 陈登 | Surface coloring process for stainless steel coil plate or flat plate |
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| CN105112983A (en) * | 2015-08-20 | 2015-12-02 | 宏旺投资集团有限公司 | Processing method for surface coloring of stainless steel plates |
| CN110013954A (en) * | 2019-04-19 | 2019-07-16 | 浙江巨创不锈钢制品科技有限公司 | A kind of flawless and resistance and fingerprint resistance surface treatment method of ordinary carbon steel |
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2020
- 2020-06-24 CN CN202010585633.9A patent/CN111850531A/en active Pending
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850639A (en) * | 2020-06-24 | 2020-10-30 | 肇庆宏旺金属实业有限公司 | Preparation method of black titanium fingerprint-resistant stainless steel coil |
| CN113088945A (en) * | 2021-03-30 | 2021-07-09 | 江门柒彩新材料有限公司 | Double-roll stainless steel water black titanium plating process |
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Application publication date: 20201030 |