CN111519102A - High-strength corrosion-resistant escalator for ship and preparation process thereof - Google Patents
High-strength corrosion-resistant escalator for ship and preparation process thereof Download PDFInfo
- Publication number
- CN111519102A CN111519102A CN202010222312.2A CN202010222312A CN111519102A CN 111519102 A CN111519102 A CN 111519102A CN 202010222312 A CN202010222312 A CN 202010222312A CN 111519102 A CN111519102 A CN 111519102A
- Authority
- CN
- China
- Prior art keywords
- parts
- escalator
- resistant
- strength corrosion
- strength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/007—Heat treatment of ferrous alloys containing Co
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
- C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
-
- 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
- C23C22/07—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 phosphates
- C23C22/08—Orthophosphates
-
- 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
- C23C2222/00—Aspects relating to chemical surface treatment of metallic material by reaction of the surface with a reactive medium
- C23C2222/10—Use of solutions containing trivalent chromium but free of hexavalent chromium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Abstract
The invention provides a high-strength corrosion-resistant escalator for a ship and a preparation process thereof, belonging to the technical field of production of escalators for ships, wherein the high-strength corrosion-resistant escalator for the ship is made of a high-strength corrosion-resistant metal material, and the high-strength corrosion-resistant metal material comprises the following components in parts by weight: 1-3 parts of manganese, 5-10 parts of cobalt, 5-7 parts of titanium, 1-5 parts of tungsten, 10-15 parts of aluminum, 1-5 parts of nickel, 7-15 parts of rare earth elements, 35-70 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts. The high-strength corrosion-resistant escalator for the ship is made of various metal alloys, is high in strength and has certain corrosion resistance; the surface of the alloy also has a layer of passive film, which can obviously improve the corrosion resistance and the metal strength; the high-strength corrosion-resistant escalator for the ship is simple in preparation process, wide in source and suitable for industrial large-scale popularization.
Description
Technical Field
The invention belongs to the technical field of production of marine escalators, and particularly relates to a high-strength corrosion-resistant marine escalator and a preparation process thereof.
Background
The escalator is simple in structure and convenient to use, so that the escalator is applied to many occasions. The navigation ship is generally required to be moved by using an escalator due to limited area. Because the ship runs on the sea surface or river surface for a long time, the environment is wet, in order to ensure the stability, a plurality of escalators are made of iron metal, but the iron is easy to rust and corrode in the wet environment, so the stability is influenced; it is therefore desirable to provide a marine escalator that is strong and corrosion resistant.
The corrosion resistance of metal in the prior art mostly adopts the following method: firstly, a layer of anticorrosive paint is coated on the surface of metal to protect the metal inside from being corroded easily, but the existing paint generally contains paint which pollutes the environment, and the environment-friendly paint is expensive; secondly, a layer of plating is plated on the metal surface, but the adoption of the mode can not ensure that the plating of all the parts of the ladder stand has good bonding force, and the protection effect can not be realized if the plating falls off; and thirdly, a layer of passivation film is formed on the surface of the metal, and the passivation film has strong bonding force with the metal and is not easy to fall off. However, the passivation solution adopted in the prior art has poor surface color of the passivation film, so that the passivation solution capable of improving the surface color of the metal while ensuring the corrosion resistance of the metal is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the high-strength corrosion-resistant escalator for the ship and the preparation process thereof, wherein the high-strength corrosion-resistant escalator for the ship is made of various metal alloys, has high strength and certain corrosion resistance; the surface of the alloy also has a layer of passive film, which can obviously improve the corrosion resistance and the metal strength; the high-strength corrosion-resistant escalator for the ship is simple in preparation process, wide in source and suitable for industrial large-scale popularization.
In order to achieve the purpose, the invention is realized by the following technical scheme: the high-strength corrosion-resistant escalator for the ship is made of high-strength corrosion-resistant metal materials, and the high-strength corrosion-resistant metal materials comprise the following components in parts by weight: 1-3 parts of manganese, 5-10 parts of cobalt, 5-7 parts of titanium, 1-5 parts of tungsten, 10-15 parts of aluminum, 1-5 parts of nickel, 7-15 parts of rare earth elements, 35-70 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts. The alloy made of the metal has higher strength and certain corrosion resistance.
Further, the rare earth elements comprise the following components in parts by weight: 40-65 parts of yttrium, 10-15 parts of gadolinium and 25-45 parts of lutetium. The rare earth metal has higher hardness, and can improve the strength of the alloy.
The invention also provides a preparation process of the high-strength corrosion-resistant escalator for the ship, which comprises the following production processes:
(1) adding the components according to the weight ratio into a melting furnace, heating the melting furnace to the temperature of 1500-;
(2) polishing the surface of the alloy sheet obtained in the step (1) until the surface is smooth and flat;
(3) degreasing and cleaning the surface of the polished alloy sheet, and ultrasonically cleaning the surface of the polished alloy sheet with hot water at the temperature of 65-80 ℃ for three times, wherein each time of cleaning is 2.5-3.5 hours;
(4) after cleaning, placing the alloy sheet in an oven for drying, wherein the drying temperature is 55-65 ℃, and the drying time is 6-8 hours;
(5) pickling the surface of the alloy sheet, then washing with hot water, wherein the washing temperature is 35-55 ℃, and then activating with sulfuric acid with the mass concentration of 5-15%;
(6) after activation, putting the alloy sheet into passivation solution for passivation for 4-6 hours;
(7) and processing the alloy sheet with the passive film on the surface into the escalator component, and assembling and fixing the escalator component to obtain the escalator.
Further, the polishing in the step (2) is physical polishing. And the physical polishing is adopted, so that no pollution is caused.
Further, the degreasing in the step (3) adopts a sodium silicate solution.
Further, the mass concentration of the sodium silicate solution is 10-15%.
Further, the acid washing solution in the step (5) adopts a sulfuric acid solution.
Further, the mass concentration of the sulfuric acid solution is 15-25%.
Further, the passivation solution in the step (6) comprises the following components by weight: 15-25 parts of sodium nitrate, 15-25 parts of chromium nitrate, 5-10 parts of phosphoric acid, 10-15 parts of sulfuric acid, 5-10 parts of silicon dioxide and 15-50 parts of deionized water. The passivation solution adopting the formula is low in price, has good corrosion resistance and wear resistance, is bright in color on the surface of metal, and has a certain repairing function.
Has the advantages that: compared with the prior art, the invention has the following advantages: the high-strength corrosion-resistant escalator for the ship is made of various metal alloys, has high strength and certain corrosion resistance; the surface of the metal is also provided with a layer of passive film, so that the product has better corrosion resistance and wear resistance, and the surface of the metal has bright color and has a certain repairing function. The high-strength corrosion-resistant escalator for the ship is simple in preparation process and low in cost, and the obtained product is good in corrosion resistance, high in strength and suitable for industrial large-scale production.
Detailed Description
The invention will now be further illustrated by reference to the following specific examples.
Example 1
The high-strength corrosion-resistant escalator for the ship is made of high-strength corrosion-resistant metal materials, and the high-strength corrosion-resistant metal materials comprise the following components in parts by weight: 1 part of manganese, 5 parts of cobalt, 5 parts of titanium, 1 part of tungsten, 10 parts of aluminum, 1 part of nickel, 7 parts of rare earth elements, 35 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts. The rare earth elements comprise the following components in parts by weight: 40 parts of yttrium, 10 parts of gadolinium and 25 parts of lutetium.
The preparation process of the high-strength corrosion-resistant escalator for the ship comprises the following production processes:
(1) adding the components according to the weight ratio into a melting furnace, heating the melting furnace to 1500 ℃ and keeping the temperature of the melting furnace at 1500 ℃, heating for 4 hours under the condition of stirring for casting, casting ingots into alloy sheets after the raw materials are completely melted, then cooling and annealing the obtained alloy sheets for 4 hours at 700 ℃, then performing aging heat treatment at 350 ℃, taking out the alloy sheets after 3 hours, and cooling the alloy sheets in cold water to obtain the alloy sheets;
(2) physically polishing the surface of the alloy sheet obtained in the step (1) until the surface is smooth and flat;
(3) degreasing and cleaning the surface of the polished alloy sheet by adopting a sodium silicate solution with the mass concentration of 10%, and ultrasonically cleaning the surface of the polished alloy sheet by using hot water with the temperature of 65 ℃ after degreasing, wherein the cleaning is carried out for three times, and each time is 2.5 hours;
(4) after cleaning, placing the alloy sheet in an oven for drying, wherein the drying temperature is 55 ℃, and the drying time is 6 hours;
(5) pickling the surface of the alloy sheet by adopting a sulfuric acid solution with the mass concentration of 15%, then washing with hot water at the temperature of 35 ℃, and then activating by using sulfuric acid with the mass concentration of 5%;
(6) after activation, putting the alloy sheet into passivation solution, wherein the passivation solution comprises the following components in parts by weight: 15 parts of sodium nitrate, 15 parts of chromium nitrate, 5 parts of phosphoric acid, 10 parts of sulfuric acid, 5 parts of silicon dioxide and 15 parts of deionized water, and passivating for 4 hours;
(7) and processing the alloy sheet with the passive film on the surface into the escalator component, and assembling and fixing the escalator component to obtain the escalator.
Example 2
The high-strength corrosion-resistant escalator for the ship is made of high-strength corrosion-resistant metal materials, and the high-strength corrosion-resistant metal materials comprise the following components in parts by weight: 3 parts of manganese, 10 parts of cobalt, 7 parts of titanium, 5 parts of tungsten, 15 parts of aluminum, 5 parts of nickel, 15 parts of rare earth elements, 70 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts. The rare earth elements comprise the following components in parts by weight: 65 parts of yttrium, 15 parts of gadolinium and 45 parts of lutetium.
The preparation process of the high-strength corrosion-resistant escalator for the ship comprises the following production processes:
(1) adding the components according to the weight ratio into a melting furnace, heating the melting furnace to 1800 ℃ and keeping the temperature of the melting furnace at 1800 ℃, heating for 6 hours under the stirring condition for fusion casting, casting ingots into alloy sheets after the raw materials are completely melted, then cooling and annealing the obtained alloy sheets for 5 hours at 800 ℃, then carrying out aging heat treatment at 400 ℃, taking out the alloy sheets after 3 hours, and placing the alloy sheets in cold water for cooling to obtain the alloy sheets;
(2) physically polishing the surface of the alloy sheet obtained in the step (1) until the surface is smooth and flat;
(3) degreasing and cleaning the surface of the polished alloy sheet by adopting a sodium silicate solution with the mass concentration of 15%, and ultrasonically cleaning the surface of the polished alloy sheet by using hot water with the temperature of 80 ℃ after degreasing, wherein the cleaning is carried out for three times, and each time is 3.5 hours;
(4) after cleaning, placing the alloy sheet in a drying oven for drying, wherein the drying temperature is 65 ℃, and the drying time is 8 hours;
(5) pickling the surface of the alloy sheet by using a sulfuric acid solution with the mass concentration of 25%, then washing with hot water at the washing temperature of 55 ℃, and then activating by using sulfuric acid with the mass concentration of 15%;
(6) after activation, putting the alloy sheet into passivation solution, wherein the passivation solution comprises the following components in parts by weight: 25 parts of sodium nitrate, 25 parts of chromium nitrate, 10 parts of phosphoric acid, 15 parts of sulfuric acid, 10 parts of silicon dioxide and 50 parts of deionized water, and passivating for 6 hours;
(7) and processing the alloy sheet with the passive film on the surface into the escalator component, and assembling and fixing the escalator component to obtain the escalator.
Example 3
The high-strength corrosion-resistant escalator for the ship is made of high-strength corrosion-resistant metal materials, and the high-strength corrosion-resistant metal materials comprise the following components in parts by weight: 2 parts of manganese, 7.5 parts of cobalt, 6 parts of titanium, 3 parts of tungsten, 2 parts of aluminum, 3 parts of nickel, 11 parts of rare earth elements, 52 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts. The rare earth elements comprise the following components in parts by weight: 52 parts of yttrium, 12 parts of gadolinium and 35 parts of lutetium.
The preparation process of the high-strength corrosion-resistant escalator for the ship comprises the following production processes:
(1) adding the components according to the weight ratio into a melting furnace, heating the melting furnace to 1650 ℃, heating for 5 hours under the stirring condition for casting, casting ingots into alloy sheets after the raw materials are completely melted, then cooling and annealing the obtained alloy sheets at 750 ℃ for 4.5 hours, then performing aging heat treatment at 370 ℃, taking out the alloy sheets after 3 hours, and cooling the alloy sheets in cold water to obtain the alloy sheets;
(2) physically polishing the surface of the alloy sheet obtained in the step (1) until the surface is smooth and flat;
(3) degreasing and cleaning the surface of the polished alloy sheet by adopting a sodium silicate solution with the mass concentration of 3%, and ultrasonically cleaning the surface of the polished alloy sheet by using 73 ℃ hot water for three times, wherein the cleaning time is 3 hours each time;
(4) after cleaning, placing the alloy sheet in a drying oven for drying, wherein the drying temperature is 60 ℃, and the drying time is 7 hours;
(5) pickling the surface of the alloy sheet by using a sulfuric acid solution with the mass concentration of 20%, then washing with hot water at the washing temperature of 45 ℃, and then activating by using sulfuric acid with the mass concentration of 10%;
(6) after activation, putting the alloy sheet into passivation solution, wherein the passivation solution comprises the following components in parts by weight: 20 parts of sodium nitrate, 20 parts of chromium nitrate, 7 parts of phosphoric acid, 12 parts of sulfuric acid, 7 parts of silicon dioxide and 35 parts of deionized water, and passivating for 5 hours;
(7) and processing the alloy sheet with the passive film on the surface into the escalator component, and assembling and fixing the escalator component to obtain the escalator.
Performance testing
In order to verify the metal strength and corrosion resistance of the metal for the escalator for ships according to the present invention, the hardness and corrosion resistance of the metal prepared in examples 1 to 3 were evaluated by the following tests, and the results of the tests are shown in table 1 below. Measuring the hardness of the alloy metal and the alloy with the surface containing the passive film by using a microhardness tester (MICEMET-6030, Buehler); and (3) carrying out corrosion test on the alloy containing the passive film by adopting seawater (the mass concentration of sodium chloride is 3.2%), wherein the test temperature is 20-25 ℃, placing the sample in the test seawater for 45 days, then taking out, cleaning the surface of the sample, drying, weighing, and calculating the corrosion rate.
Table 1 results of performance testing
| Alloy hardness/HV | Including passivation film hardness/HV | Weight loss/g | Corrosion rate/mm/s | |
| Example 1 | 870 | 1060 | 0.024 | 0.054 |
| Example 2 | 1200 | 1500 | 0.018 | 0.021 |
| Example 3 | 1060 | 1290 | 0.021 | 0.038 |
From the results, the alloy metal adopted by the high-strength corrosion-resistant escalator for the ship has higher hardness, and the hardness of the alloy metal is obviously enhanced by the passive film on the surface; the alloy containing the passive film has low corrosion rate and strong corrosion resistance, and the escalator prepared by the process has good corrosion resistance and metal strength, and is suitable for popularization and use in navigation and other occasions.
The foregoing is directed to embodiments of the present invention and, more particularly, to a method and apparatus for controlling a power converter in a power converter, including a power converter, a power converter.
Claims (9)
1. The utility model provides a corrosion-resistant marine staircase of high strength which characterized in that: the high-strength corrosion-resistant escalator for the ship is made of a high-strength corrosion-resistant metal material, and the high-strength corrosion-resistant metal material comprises the following components in parts by weight: 1-3 parts of manganese, 5-10 parts of cobalt, 5-7 parts of titanium, 1-5 parts of tungsten, 10-15 parts of aluminum, 1-5 parts of nickel, 7-15 parts of rare earth elements, 35-70 parts of iron and inevitable impurities, wherein the content of the inevitable impurities is not more than 3 parts.
2. The high strength corrosion resistant escalator for boats of claim 1, further comprising: the rare earth elements comprise the following components in parts by weight: 40-65 parts of yttrium, 10-15 parts of gadolinium and 25-45 parts of lutetium.
3. A process for preparing a high-strength corrosion-resistant escalator for a ship according to claim 2, which comprises the following steps: comprises the following production processes:
(1) adding the components according to the weight ratio into a melting furnace, heating the melting furnace to the temperature of 1500-;
(2) polishing the surface of the alloy sheet obtained in the step (1) until the surface is smooth and flat;
(3) degreasing and cleaning the surface of the polished alloy sheet, and ultrasonically cleaning the surface of the polished alloy sheet by using hot water at the temperature of 65-80 ℃ for three times, wherein each time of cleaning is 2.5-3.5 hours;
(4) after cleaning, placing the alloy sheet in an oven for drying, wherein the drying temperature is 55-65 ℃, and the drying time is 6-8 hours;
(5) pickling the surface of the alloy sheet, then washing with hot water, wherein the washing temperature is 35-55 ℃, and then activating with sulfuric acid with the mass concentration of 5-15%;
(6) after activation, putting the alloy sheet into passivation solution for passivation for 4-6 hours;
(7) and processing the alloy sheet with the passive film on the surface into the escalator component, and assembling and fixing the escalator component to obtain the escalator.
4. The manufacturing process of the high-strength corrosion-resistant marine escalator according to claim 3, characterized in that: the polishing in the step (2) is physical polishing.
5. The manufacturing process of the high-strength corrosion-resistant marine escalator according to claim 3, characterized in that: and (4) removing oil in the step (3) by using a sodium silicate solution.
6. The manufacturing process of the high-strength corrosion-resistant marine escalator according to claim 5, characterized in that: the mass concentration of the sodium silicate solution is 10-15%.
7. The manufacturing process of the high-strength corrosion-resistant marine escalator according to claim 3, characterized in that: and (3) adopting a sulfuric acid solution as the acid washing solution in the step (5).
8. The process for preparing the high-strength corrosion-resistant marine escalator according to claim 7, wherein: the mass concentration of the sulfuric acid solution is 15-25%.
9. The manufacturing process of the high-strength corrosion-resistant marine escalator according to claim 3, characterized in that: the passivation solution in the step (6) comprises the following components in parts by weight: 15-25 parts of sodium nitrate, 15-25 parts of chromium nitrate, 5-10 parts of phosphoric acid, 10-15 parts of sulfuric acid, 5-10 parts of silicon dioxide and 15-50 parts of deionized water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222312.2A CN111519102A (en) | 2020-03-26 | 2020-03-26 | High-strength corrosion-resistant escalator for ship and preparation process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010222312.2A CN111519102A (en) | 2020-03-26 | 2020-03-26 | High-strength corrosion-resistant escalator for ship and preparation process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111519102A true CN111519102A (en) | 2020-08-11 |
Family
ID=71901063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010222312.2A Pending CN111519102A (en) | 2020-03-26 | 2020-03-26 | High-strength corrosion-resistant escalator for ship and preparation process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111519102A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011174154A (en) * | 2010-02-25 | 2011-09-08 | Nippon Steel Corp | METHOD FOR MANUFACTURING HIGH-TENSILE STEEL FOR LASER BEAM WELDING OR LASER BEAM ARC HYBRID WELDING HAVING TENSILE STRENGTH OF >=1,100 MPa |
| CN103358614A (en) * | 2013-08-02 | 2013-10-23 | 武汉钢铁(集团)公司 | Steel sheet with stanniferous coating and preparation method thereof |
| CN106068333A (en) * | 2013-12-26 | 2016-11-02 | Posco公司 | High intensity low-gravity steel plate and manufacture method thereof |
| JP2017053001A (en) * | 2015-09-09 | 2017-03-16 | 新日鐵住金株式会社 | Galvanized steel sheet, galvannealed steel sheet, and their production methods |
| CN108048758A (en) * | 2017-12-15 | 2018-05-18 | 苏州赛斯德工程设备有限公司 | A kind of outdoor high-strength anti-corrosion steel plate and its processing technology |
-
2020
- 2020-03-26 CN CN202010222312.2A patent/CN111519102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011174154A (en) * | 2010-02-25 | 2011-09-08 | Nippon Steel Corp | METHOD FOR MANUFACTURING HIGH-TENSILE STEEL FOR LASER BEAM WELDING OR LASER BEAM ARC HYBRID WELDING HAVING TENSILE STRENGTH OF >=1,100 MPa |
| CN103358614A (en) * | 2013-08-02 | 2013-10-23 | 武汉钢铁(集团)公司 | Steel sheet with stanniferous coating and preparation method thereof |
| CN106068333A (en) * | 2013-12-26 | 2016-11-02 | Posco公司 | High intensity low-gravity steel plate and manufacture method thereof |
| JP2017053001A (en) * | 2015-09-09 | 2017-03-16 | 新日鐵住金株式会社 | Galvanized steel sheet, galvannealed steel sheet, and their production methods |
| CN108048758A (en) * | 2017-12-15 | 2018-05-18 | 苏州赛斯德工程设备有限公司 | A kind of outdoor high-strength anti-corrosion steel plate and its processing technology |
Non-Patent Citations (1)
| Title |
|---|
| 丁莉峰: "《金属表面防护处理及实验》", 30 November 2018, 科学技术文献出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112048720A (en) | Nickel-based powder superalloy corrosion solution and corrosion method | |
| CN102575327A (en) | Steel material for structures having excellent weather resistance and steel structure | |
| CN104109828B (en) | A kind of power transmission line overhead ground wire hot dip galvanized zinc alloy coating and preparation technology thereof | |
| CN112251744B (en) | Metal plate coating pretreatment process | |
| CN110904399A (en) | Hot-dip galvanizing process for high-strength steel pipe | |
| CN105951081B (en) | Environment-friendly type aluminium alloy non-chromium passivator and preparation method thereof | |
| WO2017197734A1 (en) | Long-term anti-corrosion method for power transmission tower | |
| CN114836103A (en) | Fast-curing solvent-resistant scrubbing primer-topcoat anticorrosive coating and preparation method thereof | |
| CN105951080B (en) | Aluminum alloy surface composite passivant and preparation method thereof | |
| CN111519102A (en) | High-strength corrosion-resistant escalator for ship and preparation process thereof | |
| CN113373436A (en) | Chromium-free passivator for hot-dip galvanized steel pipe and preparation method thereof | |
| WO2022199342A1 (en) | Surface matting process for low-manganese-content steel component of electric power iron tower and matte iron tower | |
| CN111394655A (en) | High-strength corrosion-resistant marine crane steel member and preparation process thereof | |
| JP4319158B2 (en) | High chromium steel with excellent coating adhesion and corrosion resistance under coating | |
| CN111378904B (en) | Preparation process of corrosion-resistant ultrahigh-strength steel part for bending machine | |
| CN112538646A (en) | Wear-resistant corrosion-resistant electroplating process for steel wire | |
| CN111101122A (en) | Electrogalvanizing black passivation solution and preparation method thereof | |
| CN112962046B (en) | Zinc liquid for sub-photochemical treatment of surface of low alloy steel | |
| CN115851068B (en) | Waste heat blackening liquid suitable for low-temperature waste heat blackening process | |
| CN113802033B (en) | Corrosion-resistant aluminum alloy strip for ship decoration and preparation process and application thereof | |
| CN115740370A (en) | Preparation method of wear-resistant and corrosion-resistant chemical pump blade | |
| CN113895164B (en) | Roller made of seamless aluminum alloy tube, preparation method and application in gravure printing roller | |
| CN113560537A (en) | Preparation method of low-cost high-strength corrosion-resistant aluminum alloy bimetal composite material | |
| CN115386254B (en) | Hydrophobic transparent protective liquid for protecting magnesium alloy material process, and preparation method and use method thereof | |
| CN112553612B (en) | Synchronous pickling and passivating method for stainless steel parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200811 |