阅读说明：本技术 一种整卷黑钛不锈钢的生产方法 (Production method of whole roll of black titanium stainless steel ) 是由 杨冲 曾胜 张涛 戴广均 于 2020-06-24 设计创作，主要内容包括：本发明提供一种整卷黑钛不锈钢的生产方法,包括以下步骤：磨砂：首先将不锈钢卷通过粗磨和精磨,使不锈钢表面粗糙度和光亮度达到8K要求；电解：将磨砂后的不锈钢卷送入电解池进行电解；(3)着色：将步电解后的不锈钢卷送入着色槽内镀色,得到黑钛不锈钢卷；(4)清洗：将着色后得到的黑钛不锈钢卷用脱盐水清洗；(5)烘干：将清洗后得到的黑钛不锈钢钢卷通过电烤箱进行烘干。本发明的整卷黑钛不锈钢的生产方法能够有效提高不锈钢板面的抗指纹、抗灰尘、抗油污能力,易清洁,板面均匀度好,且具有更好的耐压、耐磨和耐蚀性能。(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.)

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 ℃.

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.