Anti-pollution, anti-corrosion and anti-bacterial stainless steel plate and preparation method thereof

Abstract

The invention discloses an anti-stain anti-corrosion antibacterial stainless steel plate. A preparation method of the anti-soil anti-corrosion antibacterial stainless steel plate comprises the following steps that (1) a stainless steel plate is subjected to mechanical polishing; (2) the stainless steel plate is subjected to caustic washing; (3) the stainless steel plate is subjected to acid washing; (4) the stainless steel plate is subjected to deactivation, specifically, the acid-washed stainless steel plate is placed in deactivation liquid and subjected to deactivation for 5-8 min on the condition that anode voltage is 4-6 volts; (5) the stainless steel plate is subjected to oxidation, specifically, the deactivated stainless steel plate is placed in film formation liquid at the temperature of 60-65 DEG C and treated by positive and negative alternate alternating current, and a layer of oxidation film of 300-400nm is formed on the surface of the stainless steel plate; (6) coatings are smeared on the stainless steel plate, specifically, the polymer coating and the antibacterial coating are smeared on the stainless steel plate; and (7) the stainless steel plate obtained from the step (6) is placed in distilled water and immersed for 6-8 min at the temperature of 75-85 DEG C, so that the anti-stain anti-corrosion antibacterial stainless steel plate is obtained. The preparation method is simple, and anti-stain, anti-corrosion and antibacterial functions of the prepared product are all excellent.

Description

technical field

[0001] The invention relates to the technical field of stainless steel materials, in particular to a stain-resistant, corrosion-resistant and antibacterial stainless steel plate and a preparation method thereof. Background technique

[0002] Stainless steel is a silver-white alloy steel with excellent corrosion resistance, wear resistance, toughness and craftsmanship. Its excellent mechanical properties, good chemical stability and non-toxic properties make it widely used in aerospace, Marine, pharmaceutical, nuclear energy engineering, petrochemical and other aspects. In addition, stainless steel is also used for surface decoration in the construction industry, furniture appliances, kitchen equipment, automotive industry, office supplies, etc. Its beautiful natural surface provides beauty and cleanliness. However, during use, stainless steel materials are often exposed to corrosive liquids, such as acids and alkalis, which cause corrosion. Sometimes, the s...

Examples

Embodiment 1

[0038] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0039] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0040] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na2 CO 3 Soak in the mixture of NaOH and NaOH for 15min, take it out, and dry it in the air; where Na 2 CO 3 The concentrations of NaOH and NaOH are both 5g / mL;

[0041] (3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 10 minutes, take it out, and dry it;

[0042] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 5 minutes at an anode voltage of 6 volts; the passivation solution consists of 2g / mL citric acid, 200mL / L glacial acetic acid, 2g / mL NaCl, 2mL / L H 2 o 2 and 1g / mL agar powder;

[0043] (5) Oxidation: Place the passivated ...

Embodiment 2

[0060] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0061] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0062] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na 2 CO 3 Soak in the mixture of NaOH and NaOH for 20min, take it out, and dry it in the air; where Na 2 CO 3 The concentrations of NaOH and NaOH are both 3g / mL;

[0063] (3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 15 minutes, take it out, and dry it;

[0064] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 8 minutes at an anode voltage of 4 volts; the passivation solution consists of 5g / mL citric acid, 300mL / L glacial acetic acid, 5g / mL sodium chloride, 5mL / L H 2 o 2 and 2g / mL agar powder;

[0065] (5) Oxidation: place th...

Embodiment 3

[0082] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0083] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0084] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na 2 CO 3 Soak in the mixture of NaOH and NaOH for 20min, take it out, and dry it in the air; where Na 2 CO 3 The concentration of NaOH is 5g / mL, and the concentration of NaOH is 3g / mL;

[0085](3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 15 minutes, take it out, and dry it;

[0086] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 6 minutes under the condition of the anode voltage of 5 volts; the passivation solution consists of 4g / mL citric acid, 300mL / L glacial acetic acid, 3g / mL NaCl, 3mL / L H 2 o 2 and 1.5g / mL agar powder...

technical field

[0001] The invention relates to the technical field of stainless steel materials, in particular to a stain-resistant, corrosion-resistant and antibacterial stainless steel plate and a preparation method thereof. Background technique

[0002] Stainless steel is a silver-white alloy steel with excellent corrosion resistance, wear resistance, toughness and craftsmanship. Its excellent mechanical properties, good chemical stability and non-toxic properties make it widely used in aerospace, Marine, pharmaceutical, nuclear energy engineering, petrochemical and other aspects. In addition, stainless steel is also used for surface decoration in the construction industry, furniture appliances, kitchen equipment, automotive industry, office supplies, etc. Its beautiful natural surface provides beauty and cleanliness. However, during use, stainless steel materials are often exposed to corrosive liquids, such as acids and alkalis, which cause corrosion. Sometimes, the s...

Examples

Embodiment 1

[0038] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0039] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0040] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na2 CO 3 Soak in the mixture of NaOH and NaOH for 15min, take it out, and dry it in the air; where Na 2 CO 3 The concentrations of NaOH and NaOH are both 5g / mL;

[0041] (3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 10 minutes, take it out, and dry it;

[0042] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 5 minutes at an anode voltage of 6 volts; the passivation solution consists of 2g / mL citric acid, 200mL / L glacial acetic acid, 2g / mL NaCl, 2mL / L H 2 o 2 and 1g / mL agar powder;

[0043] (5) Oxidation: Place the passivated ...

Embodiment 2

[0060] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0061] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0062] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na 2 CO 3 Soak in the mixture of NaOH and NaOH for 20min, take it out, and dry it in the air; where Na 2 CO 3 The concentrations of NaOH and NaOH are both 3g / mL;

[0063] (3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 15 minutes, take it out, and dry it;

[0064] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 8 minutes at an anode voltage of 4 volts; the passivation solution consists of 5g / mL citric acid, 300mL / L glacial acetic acid, 5g / mL sodium chloride, 5mL / L H 2 o 2 and 2g / mL agar powder;

[0065] (5) Oxidation: place th...

Embodiment 3

[0082] An anti-pollution, corrosion-resistant and antibacterial stainless steel plate, the preparation method of which comprises the following steps:

[0083] (1) Mechanical polishing: polish the surface of the stainless steel plate with sandpaper;

[0084] (2) Alkaline cleaning: put the mechanically polished stainless steel plate into Na 2 CO 3 Soak in the mixture of NaOH and NaOH for 20min, take it out, and dry it in the air; where Na 2 CO 3 The concentration of NaOH is 5g / mL, and the concentration of NaOH is 3g / mL;

[0085](3) pickling: put the stainless steel plate after alkali washing into hydrochloric acid and soak for 15 minutes, take it out, and dry it;

[0086] (4) Passivation: Put the pickled stainless steel plate into the passivation solution, and passivate it for 6 minutes under the condition of the anode voltage of 5 volts; the passivation solution consists of 4g / mL citric acid, 300mL / L glacial acetic acid, 3g / mL NaCl, 3mL / L H 2 o 2 and 1.5g / mL agar powder...

Images