CN115233003A - Production process and surface treatment equipment of corrosion-resistant copper-containing alloy - Google Patents
Production process and surface treatment equipment of corrosion-resistant copper-containing alloy Download PDFInfo
- Publication number
- CN115233003A CN115233003A CN202210901765.7A CN202210901765A CN115233003A CN 115233003 A CN115233003 A CN 115233003A CN 202210901765 A CN202210901765 A CN 202210901765A CN 115233003 A CN115233003 A CN 115233003A
- Authority
- CN
- China
- Prior art keywords
- copper
- containing alloy
- treatment
- corrosion
- pool
- 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
- 239000010949 copper Substances 0.000 title claims abstract description 122
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 120
- 239000000956 alloy Substances 0.000 title claims abstract description 119
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 108
- 238000005260 corrosion Methods 0.000 title claims abstract description 34
- 230000007797 corrosion Effects 0.000 title claims abstract description 34
- 238000004381 surface treatment Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 238000002161 passivation Methods 0.000 claims abstract description 35
- 238000005422 blasting Methods 0.000 claims abstract description 23
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003723 Smelting Methods 0.000 claims abstract description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000002994 raw material Substances 0.000 claims abstract description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000011651 chromium Substances 0.000 claims abstract description 8
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 8
- 239000010941 cobalt Substances 0.000 claims abstract description 8
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 28
- 238000006386 neutralization reaction Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000012670 alkaline solution Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 8
- 229910052786 argon Inorganic materials 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010891 electric arc Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 2
- 230000000813 microbial effect Effects 0.000 abstract description 8
- 239000013535 sea water Substances 0.000 abstract description 6
- 238000005204 segregation Methods 0.000 abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001431 copper ion Inorganic materials 0.000 abstract description 3
- 238000013508 migration Methods 0.000 abstract description 3
- 230000005012 migration Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000010287 polarization Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 6
- 238000002791 soaking Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009194 climbing Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000192125 Firmicutes Species 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 210000001787 dendrite Anatomy 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005480 shot peening Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- 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
- C23C22/48—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 not containing phosphates, hexavalent chromium compounds, fluorides or complex fluorides, molybdates, tungstates, vanadates or oxalates
- C23C22/58—Treatment of other metallic material
-
- 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
- C23C22/73—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 characterised by the process
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
The invention discloses a production process and surface treatment equipment of a corrosion-resistant copper-containing alloy, which comprises the following steps of firstly putting metal raw materials into a smelting furnace, wherein the metal raw materials comprise aluminum, copper, cobalt, chromium, iron and nickel, and the molar ratio of the aluminum, the copper, the cobalt, the chromium, the iron and the nickel is 0.3; then smelting copper-containing alloy and processing the copper-containing alloy into copper-containing alloy parts; then, carrying out shot blasting treatment on the copper-containing alloy part by adopting ultrasonic shot blasting equipment; finally, carrying out surface passivation treatment on the copper-containing alloy part; according to the invention, through ultrasonic shot blasting treatment, physical migration of elements on the surface of the alloy is regulated and controlled, so that the surface of the alloy is homogenized, the problem of segregation of copper elements in the copper-containing alloy is solved, and then, surface passivation treatment is carried out on the copper-containing alloy through a nitric acid solution, so that a passivation film is formed on the surface of the copper-containing alloy, the release rate of copper ions in a marine microbial environment is improved, and the seawater and microbial corrosion resistance of the copper-containing alloy material is improved.
Description
Technical Field
The invention relates to the field of alloys, in particular to a production process and surface treatment equipment of a corrosion-resistant copper-containing alloy.
Background
The ocean has wide area and rich resources, and is always a key development object in each country. The ocean environment is very harsh, and the severe corrosion of seawater and microorganisms to the traditional ocean materials limits the efficient development of ocean resources in various countries. At present, the mainstream traditional materials applied to ocean development are alloy steel, stainless steel and other materials resistant to seawater halogen element ion corrosion, and have poor resistance to marine microbial corrosion. Therefore, researchers develop novel AlCuCoCrFeNi series high-entropy copper-containing alloy with excellent mechanical and corrosion properties, and the copper-containing alloy material has a strong antibacterial effect on marine gram-negative pseudomonas aeruginosa and gram-positive bacteria and can better resist marine microorganism corrosion. In the copper-containing alloy material, copper is a main antibacterial element; however, in the process of smelting the copper-containing alloy, copper element is easy to be separated out from an alloy matrix, so that serious segregation among dendrites is caused, the generation of a uniform passive film on the surface of the alloy is not facilitated, and the risk of pitting corrosion and intergranular corrosion of the alloy is increased.
Disclosure of Invention
The invention aims to solve the technical problem that copper element is easy to precipitate from a copper-containing alloy material in the prior art during smelting, and the copper-containing alloy material is not beneficial to forming a surface passivation film.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a production process of a corrosion-resistant copper-containing alloy comprises the following steps:
the method comprises the following steps: feeding a metal raw material into a smelting furnace, the metal raw material containing aluminum, copper, cobalt, chromium, iron and nickel, and the mol of the aluminum, copper, cobalt, chromium, iron and nickelRatio 0.3<x<0.7 of the total weight of the mixture; that is, the copper-containing alloy has a chemical formula of Al 0.3 Cu x CoCrFeNi；
Step two: smelting by using a smelting furnace to obtain copper-containing alloy;
step three: processing the copper-containing alloy into a copper-containing alloy part;
step four: carrying out shot blasting treatment on the copper-containing alloy part by adopting ultrasonic shot blasting equipment;
step five: carrying out surface treatment on the copper-containing alloy part, wherein the surface treatment comprises the steps of firstly putting the copper-containing alloy part into a nitric acid solution for passivation treatment, then putting the copper-containing alloy part into an alkaline solution for neutralization treatment, and finally washing the copper-containing alloy part with clear water;
according to the invention, through ultrasonic shot blasting treatment, physical migration of elements on the surface of the alloy is regulated and controlled, so that the surface of the alloy is homogenized, the problem of segregation of copper elements in the copper-containing alloy is solved, and then, surface passivation treatment is carried out on the copper-containing alloy through a nitric acid solution, so that a passivation film is formed on the surface of the copper-containing alloy, the release rate of copper ions in a marine microbial environment is improved, and the seawater and microbial corrosion resistance of the copper-containing alloy material is improved.
In the second step, the copper-containing alloy is smelted by a vacuum smelting method, specifically, the smelting furnace is a vacuum electric arc furnace, and the vacuum electric arc furnace is vacuumized to 5 multiplied by 10 before smelting -3 Below Pa, filling argon with the purity not lower than 99.99%; then the vacuum arc furnace is vacuumized again to 5 multiplied by 10 -3 Below Pa, and finally filling argon until the pressure in the furnace is 0.05MPa lower than the atmospheric pressure.
Further, in the second step, the furnace temperature is increased to melt all the metal raw materials, the heating is stopped after five minutes, and then the electromagnetic stirring is started; heating and stirring are repeated for seven times, and finally the alloy material is cooled to room temperature.
Furthermore, the shot adopted by the ultrasonic shot blasting equipment is 0.8mm-2.0mm diameter GCr15 steel ball, and the shot blasting time is 3-30 minutes; the frequency of an ultrasonic generator in the ultrasonic shot blasting equipment is 10-20KHz.
Further, the mass fraction of nitric acid in the nitric acid solution is 15-40%, and the passivation treatment time is 30-120 minutes; the alkaline solution is NaOH solution with the mass fraction of 1% -5%, and the time of neutralization treatment is 2-5 minutes.
The invention also provides corrosion-resistant copper-containing alloy surface treatment equipment, which comprises a treatment pool, a conveyor belt, transverse plates, vertical pipes and a material box;
the method comprises the following steps that a plurality of partition slopes are arranged in a treatment tank along the length direction, two sides of each partition slope are inclined, the partition slopes sequentially divide a preparation tank, a passivation tank, a neutralization tank and a cleaning tank in the treatment tank, nitric acid solution is stored in the passivation tank, alkaline solution is stored in the neutralization tank, and a spray head is arranged on the wall of the cleaning tank;
the conveying belt is parallel to the length direction of the treatment tank, the transverse plate is placed on the conveying belt, and the conveying belt drives the transverse plate to move horizontally along the treatment tank;
the wall of the material box is provided with a leakage hole, the material box is used for storing copper-containing alloy parts, the outer bottom surface of the material box is provided with a row of rollers, and the inner bottom surface of the material box is provided with a vertical guide rod; the vertical pipe penetrates through the transverse plate, can freely move up and down in the vertical direction, and is inserted into the guide rod at the bottom end;
when the conveying belt drives the transverse plate to move, the vertical pipe translates along with the transverse plate, the vertical pipe drives the material box to translate in the treatment pool, and when the material box meets the partition slope, the material box and the vertical pipe can vertically ascend and vertically descend to ensure that the material box can cross the partition slope, so that the material box can sequentially pass through the preparation pool, the passivation pool, the neutralization pool and the cleaning pool; in the invention, copper-containing alloy parts in a material box need to be soaked in a nitric acid solution in a passivation tank and an alkaline solution in a neutralization tank for a specified time, and the time control method comprises the following steps: the conveyer belt drives the material box to uniformly advance, and the length of the passivation pool and the length of the neutralization pool are reasonably set to ensure the retention time of the material box in the passivation pool and the neutralization pool.
Furthermore, a spherical hole is formed in the transverse plate, a spherical deflection ball is mounted in the spherical hole, the deflection ball protrudes out of the upper surface and the lower surface of the transverse plate, a vertical hole is formed in the deflection ball, and the vertical pipe penetrates through the vertical hole; a limiting ring is arranged on the upper surface or the lower surface of the transverse plate, and the vertical pipe is positioned in the limiting ring;
the deflection ball enables the vertical pipe and the material box not only to be lifted, but also to deflect at a small angle, namely the material box can incline to a certain degree in the process of climbing and descending; a plurality of copper-containing alloy parts may be stored in a magazine, which may result in local areas of the copper-containing alloy parts not being in sufficient contact with the nitric acid solution, and the tilting of the magazine may cause slight movement of the copper-containing alloy parts in the magazine so that the surfaces of the copper-containing alloy parts are all in contact with the nitric acid solution; in order to strengthen the effect, light vibration slopes are arranged in the passivation pool and the neutralization pool, the light vibration slopes are similar to the partition slopes and are slopes with two inclined surfaces, but the height of the light vibration slopes is smaller than that of the partition slopes.
Further, the surface of conveyer belt is provided with the draw-in groove, in the draw-in groove was gone into to the diaphragm card, the draw-in groove made the conveyer belt better to the drive effect of diaphragm.
Furthermore, bottom brackets for placing the material box are arranged in the preparation pool and the cleaning pool, and an upper bracket for bearing the transverse plate is also arranged on the cleaning pool; the end setting of conveyer belt is after the shower nozzle of wasing the pond, and when diaphragm and workbin were conveyed to the end, the diaphragm passed through to the upper bracket on, and the workbin then passes through to the bottom sprag frame, and the bottom sprag frame is used for depositing the workbin of accomplishing work.
Has the beneficial effects that: (1) The production process of the copper-containing alloy regulates and controls physical migration of elements on the surface of the alloy through ultrasonic shot blasting treatment, so that the surface of the alloy is homogenized, the problem of segregation of copper elements in the copper-containing alloy is solved, and the surface of the copper-containing alloy is passivated by nitric acid solution subsequently to form a passivation film on the surface of the copper-containing alloy, so that the release rate of copper ions in a marine microbial environment is improved, and the seawater and microbial corrosion resistance of a copper-containing alloy material is improved. (2) The copper-containing alloy surface treatment equipment utilizes the movable feed box to drive the copper-containing alloy parts to move at a constant speed in the passivation tank and the neutralization tank, so that the copper-containing alloy parts can be conveniently transferred in different tanks, and the soaking time of the copper-containing alloy parts in the solution can be controlled by the length of the tanks. (3) The deflection ball is arranged in the transverse plate of the copper-containing alloy surface treatment equipment, so that the material box can deflect at a small angle, the copper-containing alloy parts in the material box are promoted to move slightly, and the surfaces of the copper-containing alloy parts can be contacted with the nitric acid solution.
Drawings
FIG. 1 is a potentiodynamic polarization curve of the corrosion-resistant copper-containing alloy part in example 1 after soaking in NaCl solution.
FIG. 2 is a potentiodynamic polarization curve of the corrosion-resistant copper-containing alloy part in example 1 after being soaked in a culture solution of Pseudomonas aeruginosa.
Fig. 3 is a plan view of the surface treatment apparatus used in example 1.
Fig. 4 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.
Fig. 5 is a left side view of fig. 4.
Fig. 6 is an enlarged view a of fig. 4.
Fig. 7 is an enlarged view B of fig. 6.
Fig. 8 is an operation state diagram of the surface treatment apparatus.
Wherein: 100. a treatment tank; 110. blocking the slope; 120. preparing a pool; 130. a passivation pool; 140. a neutralization pond; 150. a cleaning tank; 151. a spray head; 160. a gently vibrating slope; 200. a conveyor belt; 210. a card slot; 300. a transverse plate; 310. deflecting the ball; 311. vertical holes; 320. a limiting ring; 400. a vertical tube; 500. a material box; 510. a leak hole; 520. a roller; 530. a guide bar; 600. a bottom bracket; 700. and (4) an upper bracket.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example 1
The production process of the corrosion-resistant copper-containing alloy comprises the following steps:
the method comprises the following steps: charging a metal raw material into a vacuum arc furnace, wherein the metal raw material contains aluminum, copper, cobalt, chromium, iron and nickel, and the molar ratio of the aluminum, the copper, the cobalt, the chromium, the iron and the nickel is 0.3Al 0.3 Cu 0.3 CoCrFeNi；
Step two: vacuum-pumping the vacuum arc furnace to 5X 10 -3 Below Pa, filling argon with the purity not lower than 99.99%; then the vacuum arc furnace is vacuumized again to 5 multiplied by 10 -3 Below Pa, finally filling argon until the pressure in the furnace is 0.05MPa lower than the atmospheric pressure;
step three: raising the furnace temperature until all metal raw materials are melted, stopping heating after five minutes, and then starting electromagnetic stirring; heating and stirring are repeated for seven times, and finally the alloy material is cooled to room temperature to obtain the copper-containing alloy material;
step four: processing the copper-containing alloy into a copper-containing alloy part;
step four: carrying out shot blasting treatment on the copper-containing alloy part by adopting ultrasonic shot blasting equipment, wherein the shot adopted by the ultrasonic shot blasting equipment is a GCr15 steel ball with the diameter of 1.0mm, and the shot blasting treatment time is 5 minutes; the frequency of an ultrasonic generator in the ultrasonic shot blasting equipment is 15KHz;
step five: the method comprises the following steps of firstly putting the copper-containing alloy part into a nitric acid solution with the mass fraction of 25% for passivation for 120 minutes, then putting the copper-containing alloy part into a NaOH solution with the mass fraction of 2% for neutralization for 2 minutes, and finally washing the copper-containing alloy part with clear water.
In order to verify the corrosion resistance of the copper-containing alloy part, two tests were performed on the copper-containing alloy part in this example;
test No. 1
Using organic silicon sealant to carry out sample encapsulation on the copper-containing alloy part before shot blasting and the copper-containing alloy part after surface treatment, reserving a region with the surface area of 10mm multiplied by 10mm as a working electrode, and then putting the two parts into a NaCl solution with the mass fraction of 3.5% to soak for 14 days; after soaking, performing potentiodynamic polarization curve test on the two copper-containing alloy parts, wherein the scanning range of the polarization curve test is from-0.4V to 0.6V, the scanning speed is 0.5mV/s, and the polarization curve obtained by analysis after scanning is finished is shown in figure 1; it can be seen that the shot peening and the blunting part are passed throughThe passivated area of the physical sample is obviously widened, and the corrosion current density is from 3.94 multiplied by 10 -2 μA/cm 2 Reduced to 0.89X 10 -2 μA/cm 2 The pitting potential is increased from-144.9 mV to 206.7mV, and the seawater corrosion resistance of the copper-containing alloy is greatly improved.
Test No. two
Using organic silicon sealant to package the copper-containing alloy parts before shot blasting and the copper-containing alloy parts after surface treatment, reserving an area with the surface area of 10mm multiplied by 10mm as a working electrode, putting the two samples into pure isopropyl acetone for ultrasonic cleaning, then transferring the samples to an ultraviolet lamp for irradiation for 30 minutes for disinfection and sterilization, and then putting the two samples into a pseudomonas aeruginosa culture solution for soaking for 14 days; and after soaking, performing potentiodynamic polarization curve test on the two copper-containing alloy parts, wherein the voltage scanning rate of the potentiodynamic polarization test is 0.5mV/s, the scanning initial potential is-0.2V, and the termination potential is 0.2V, and the polarization curve obtained by analysis after scanning is finished is shown in figure 2. The result shows that the protective potential of the copper-containing alloy generates E after surface shot blasting and passivation treatment p And breakdown potential E b All occur in a significant positive shift, E p Increasing from-33.69 mV to 43.13mV b The microbial corrosion resistance of the copper-containing alloy is greatly improved from 14.28mV to 237.2 mV.
The mode of obtaining the culture solution of the pseudomonas aeruginosa in the test is as follows: taking out Pseudomonas aeruginosa stored in-80 deg.C ultra-low temperature refrigerator, placing into 2216E microorganism culture solution for resuscitation, and transferring to the second generation, wherein the concentration of Pseudomonas aeruginosa is controlled at 1.0 × 10 6 cell/ml。
As shown in fig. 3 to 7, the surface treatment apparatus used in the process for producing the corrosion-resistant copper-containing alloy of the present embodiment includes a treatment tank 100, a conveyor belt 200, a horizontal plate 300, a vertical pipe 400, and a bin 500;
three partition slopes 110 are arranged in the treatment tank 100 along the length direction, two sides of each partition slope 110 are inclined, the partition slopes 110 sequentially divide a preparation tank 120, a passivation tank 130, a neutralization tank 140 and a cleaning tank 150 in the treatment tank 100, a nitric acid solution is stored in the passivation tank 130, an alkaline solution is stored in the neutralization tank 140, and a spray head 151 is arranged on the tank wall of the cleaning tank 150;
the conveyor belts 200 are parallel to the length direction of the treatment tank 100, one conveyor belt 200 is respectively arranged on each of two sides of the treatment tank 100, a clamping groove 210 is formed in the surface of each conveyor belt 200, the transverse plate 300 is clamped into the clamping groove 210, and the conveyor belts 200 drive the transverse plate 300 to horizontally move along the treatment tank 100;
as shown in fig. 6 and 7, the transverse plate 300 is provided with a spherical hole, a spherical deflecting ball 310 is mounted in the spherical hole, the deflecting ball 310 protrudes out of the upper surface and the lower surface of the transverse plate 300, a vertical hole 311 is formed in the deflecting ball 310, the vertical pipe 400 passes through the vertical hole 311, and the vertical pipe 400 can freely move up and down in the vertical hole 311; the lower surface of the transverse plate 300 is provided with a limiting ring 320, and the vertical pipe 400 is positioned in the limiting ring 320;
the wall of the feed box 500 is provided with a leak hole 510, the feed box 500 is used for storing copper-containing alloy parts, the outer bottom surface of the feed box 500 is provided with a row of rollers 520, the inner bottom surface of the feed box 500 is provided with a vertical guide rod 530, and the bottom end of the vertical pipe 400 is inserted into the guide rod 530;
a light vibration slope 160 is arranged in each of the passivation pool 130 and the neutralization pool 140, the light vibration slope 160 is similar to the partition slope 110 and is a slope with two inclined surfaces, but the height of the light vibration slope 160 is smaller than that of the partition slope 110; the preparation tank 120 and the cleaning tank 150 are both provided with a bottom bracket 600 for placing the material box 500, and the cleaning tank 150 is also provided with an upper bracket 700 for bearing the transverse plate 300.
The surface treatment equipment in the embodiment is mainly used for carrying out surface passivation treatment and cleaning on copper-containing alloy parts, and the basic working process comprises the following steps:
(1) Placing the copper-containing alloy part in a bin 500 as shown in figure 6, the bin 500 initially being in the preparation bath 120;
(2) Placing the transverse plate 300 in the clamping groove 210 of the conveyor belt 200, and driving the transverse plate 300, the vertical pipe 400 and the material box 500 to move horizontally by the conveyor belt;
(3) As shown in fig. 8, when roller 520 at the bottom of bin 500 touches partition slope 110, bin 500 tilts to a certain degree and starts to climb, bin 500 and standpipe 400 both move upward, and then bin 500 passes through passivation tank 130 and neutralization tank 140 in sequence; the copper-containing alloy parts in the material box 500 are passivated in a nitric acid solution, and a NaOH solution in the neutralization pond 140 is used for neutralizing residual nitric acid on the surfaces of the copper-containing alloy parts;
(4) Finally, the feed box 500 enters a cleaning pool 150 shown in FIG. 4, and copper-containing alloy parts in the feed box 500 are washed by a spray head 151; when the cross plate 300 moves to the end of the belt, the cross plate 300 will transition to the upper bracket 700 and the bin 500 to the bottom bracket 600.
As can be seen from fig. 8, the bin 500 has a certain inclination during the climbing and descending processes; a plurality of copper-containing alloy parts may be stored in one bin 500, which may result in local areas of the copper-containing alloy parts not being sufficiently contacted by the nitric acid solution, and tilting the bin 500 may cause slight movement of the copper-containing alloy parts in the bin 500 so that surfaces of the copper-containing alloy parts are each contacted by the nitric acid solution; therefore, the light vibration slope 160 is arranged in the passivation tank 130 and the neutralization tank 140, and the bin 500 can incline left and right when passing through the light vibration slope 160, so that the copper-containing alloy parts in the bin can move slightly.
In the embodiment in which copper-containing alloy parts in the bin 500 are required to be soaked in the nitric acid solution of the passivation bath 130 and the alkaline solution of the neutralization bath 140 for a specified time, the method for controlling the time is as follows: the conveyor belt 200 drives the workbin 500 to uniformly advance, and the residence time of the workbin 500 in the passivation pool 130 and the neutralization pool 140 is ensured by reasonably setting the lengths of the passivation pool 130 and the neutralization pool 140; for convenience of expression, the passivation reservoir 130 and the neutralization reservoir 140 shown in fig. 4 in this embodiment are merely illustrative and not true length scale.
Although the embodiments of the present invention have been described in the specification, these embodiments are merely provided as a hint, and should not limit the scope of the present invention. Various omissions, substitutions, and changes may be made without departing from the spirit of the invention and are intended to be within the scope of the invention.
Claims (10)
1. The production process of the corrosion-resistant copper-containing alloy is characterized by comprising the following steps of:
the method comprises the following steps: charging a metalliferous feed material into a smelting furnace, the metalliferous feed material comprising aluminium, copper, cobalt, chromium, iron, and nickel, the molar ratio of aluminium, copper, cobalt, chromium, iron, and nickel being 0.3 x;
step two: smelting by using a smelting furnace to obtain copper-containing alloy;
step three: processing the copper-containing alloy into a copper-containing alloy part;
step four: carrying out shot blasting treatment on the copper-containing alloy part by adopting ultrasonic shot blasting equipment;
step five: and carrying out surface treatment on the copper-containing alloy part, wherein the surface treatment comprises the steps of firstly putting the copper-containing alloy part into a nitric acid solution for passivation treatment, then putting the copper-containing alloy part into an alkaline solution for neutralization treatment, and finally washing the copper-containing alloy part with clear water.
2. The process of producing a corrosion-resistant copper-containing alloy of claim 1, wherein: the smelting furnace is a vacuum electric arc furnace, and the vacuum electric arc furnace is vacuumized to 5 multiplied by 10 before smelting -3 Below Pa, then filling argon; then the vacuum arc furnace is vacuumized again to 5 multiplied by 10 -3 Below Pa, and finally filling argon until the pressure in the furnace is 0.05MPa lower than the atmospheric pressure.
3. The process of producing a corrosion-resistant copper-containing alloy of claim 1, wherein: in the second step, the furnace temperature is firstly increased until all the metal raw materials are melted, the heating is stopped after five minutes, and then the electromagnetic stirring is started; the temperature is repeatedly raised and stirred for seven times, and finally the alloy material is cooled to the room temperature.
4. The process of producing a corrosion-resistant copper-containing alloy of claim 1, wherein: the ultrasonic shot blasting equipment adopts GCr15 steel balls with the diameter of 0.8mm-2.0mm as shot, and the shot blasting time is 3-30 minutes; the frequency of an ultrasonic generator in the ultrasonic shot blasting equipment is 10-20KHz.
5. The process of producing a corrosion-resistant copper-containing alloy of claim 1, wherein: the mass fraction of nitric acid in the nitric acid solution is 15-40%, and the passivation treatment time is 30-120 minutes; the alkaline solution is NaOH solution with the mass fraction of 1% -5%, and the time of neutralization treatment is 2-5 minutes.
6. A surface treatment equipment for corrosion-resistant copper-containing alloy is characterized in that: comprises a treatment tank (100), a conveyor belt (200), a transverse plate (300), a vertical pipe (400) and a feed box (500);
a plurality of partition slopes (110) are arranged in the treatment pool (100) along the length direction, the partition slopes (110) sequentially divide a preparation pool (120), a passivation pool (130), a neutralization pool (140) and a cleaning pool (150) in the treatment pool (100), a nitric acid solution is stored in the passivation pool (130), an alkaline solution is stored in the neutralization pool (140), and a spray head (151) is arranged on the wall of the cleaning pool (150);
the conveyor belt (200) is parallel to the length direction of the treatment tank (100), and the transverse plate (300) is placed on the conveyor belt (200);
the box wall of the box (500) is provided with a leakage hole (510), the box (500) is used for storing copper-containing alloy parts, the outer bottom surface of the box (500) is provided with a row of rollers (520), and the inner bottom surface of the box (500) is provided with a vertical guide rod (530); the vertical pipe (400) penetrates through the transverse plate (300), and the bottom end of the vertical pipe (400) is inserted into the guide rod (530).
7. The process of producing a corrosion-resistant copper-containing alloy of claim 6, wherein: a spherical hole is formed in the transverse plate (300), a spherical deflection ball (310) is installed in the spherical hole, the deflection ball (310) protrudes out of the upper surface and the lower surface of the transverse plate (300), a vertical hole (311) is formed in the deflection ball (310), and the vertical pipe (400) penetrates through the vertical hole (311); the upper surface or the lower surface of the transverse plate (300) is provided with a limiting ring (320), and the vertical pipe (400) is positioned in the limiting ring (320).
8. The process of producing a corrosion-resistant copper-containing alloy of claim 6, wherein: the surface of the conveyor belt (200) is provided with a clamping groove (210), and the transverse plate (300) is clamped into the clamping groove (210).
9. The process of producing a corrosion resistant copper-containing alloy of claim 6, wherein: light vibration slopes (160) are arranged in the passivation tank (130) and the neutralization tank (140).
10. The process of producing a corrosion resistant copper-containing alloy of claim 6, wherein: the preparation tank (120) and the cleaning tank (150) are internally provided with bottom brackets (600) for placing the material box (500), and the cleaning tank (150) is also provided with an upper bracket (700) for bearing the transverse plate (300).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901765.7A CN115233003A (en) | 2022-07-28 | 2022-07-28 | Production process and surface treatment equipment of corrosion-resistant copper-containing alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210901765.7A CN115233003A (en) | 2022-07-28 | 2022-07-28 | Production process and surface treatment equipment of corrosion-resistant copper-containing alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115233003A true CN115233003A (en) | 2022-10-25 |
Family
ID=83677896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210901765.7A Pending CN115233003A (en) | 2022-07-28 | 2022-07-28 | Production process and surface treatment equipment of corrosion-resistant copper-containing alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115233003A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080031769A1 (en) * | 2006-07-28 | 2008-02-07 | Jien-Wei Yeh | High-temperature resistant alloy with low contents of cobalt and nickel |
| CN101130844A (en) * | 2006-08-21 | 2008-02-27 | 清华大学 | High-temperature alloy with low content of cobalt and nickel |
| CN108374166A (en) * | 2018-01-30 | 2018-08-07 | 北京科技大学 | Improve the surface treatment method of 316LN austenitic stainless steels radiation resistance and corrosion resistance |
| CN110760733A (en) * | 2019-11-27 | 2020-02-07 | 中国科学院深圳先进技术研究院 | High-entropy alloy resistant to marine microbial corrosion and preparation method and application thereof |
| CN111187964A (en) * | 2020-02-10 | 2020-05-22 | 东北大学 | High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof |
| CN211170894U (en) * | 2019-07-02 | 2020-08-04 | 广汉市恒锐钢球制造有限公司 | Passivation workshop for stainless steel products |
| CN111809171A (en) * | 2020-07-10 | 2020-10-23 | 常熟市东升法兰有限公司 | Stainless steel flange passivation technology |
| CN114645178A (en) * | 2020-12-21 | 2022-06-21 | 武汉苏泊尔炊具有限公司 | Corrosion-resistant alloy, preparation method thereof and cooking utensil |
-
2022
- 2022-07-28 CN CN202210901765.7A patent/CN115233003A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080031769A1 (en) * | 2006-07-28 | 2008-02-07 | Jien-Wei Yeh | High-temperature resistant alloy with low contents of cobalt and nickel |
| CN101130844A (en) * | 2006-08-21 | 2008-02-27 | 清华大学 | High-temperature alloy with low content of cobalt and nickel |
| CN108374166A (en) * | 2018-01-30 | 2018-08-07 | 北京科技大学 | Improve the surface treatment method of 316LN austenitic stainless steels radiation resistance and corrosion resistance |
| CN211170894U (en) * | 2019-07-02 | 2020-08-04 | 广汉市恒锐钢球制造有限公司 | Passivation workshop for stainless steel products |
| CN110760733A (en) * | 2019-11-27 | 2020-02-07 | 中国科学院深圳先进技术研究院 | High-entropy alloy resistant to marine microbial corrosion and preparation method and application thereof |
| CN111187964A (en) * | 2020-02-10 | 2020-05-22 | 东北大学 | High-strength-plasticity antibacterial high-entropy alloy and preparation method thereof |
| CN111809171A (en) * | 2020-07-10 | 2020-10-23 | 常熟市东升法兰有限公司 | Stainless steel flange passivation technology |
| CN114645178A (en) * | 2020-12-21 | 2022-06-21 | 武汉苏泊尔炊具有限公司 | Corrosion-resistant alloy, preparation method thereof and cooking utensil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zeeshan et al. | Hybrid helical magnetic microrobots obtained by 3D template‐assisted electrodeposition | |
| CN105013654B (en) | Spraying device and purpose thereof | |
| TW201127997A (en) | Plating tank | |
| JP6000123B2 (en) | Cylinder plating method and apparatus | |
| US20110108415A1 (en) | Apparatus and method for plating a substrate | |
| CN115233003A (en) | Production process and surface treatment equipment of corrosion-resistant copper-containing alloy | |
| CN111519233A (en) | Nickel plating production line and electroplating process thereof | |
| CN103540986A (en) | Method for anodising surfaces of metallic hollow bodies | |
| CN108315689B (en) | TD treatment process | |
| US20180195193A1 (en) | Filling plating system and filling plating method | |
| US5393395A (en) | Method of surface-treating a half sliding bearing and apparatus for same | |
| CN1633525A (en) | Conveyorized horizontal processing line and method of wet-processing a workpiece | |
| CN206392333U (en) | A kind of hemispherical workpiece surface dip-coating stiffened processing unit | |
| CN105803512B (en) | A kind of central anode electroplating device and electro-plating method | |
| KR100950954B1 (en) | Fe0 packed bipolar electrolytic cell for removing nitrate ion from water | |
| CN110079849A (en) | A kind of preparation method of titanium-based medical apparatus surface antimicrobial coating | |
| KR101219083B1 (en) | Apparatus and method for manufacturing MMO anode using continuous coating and heat treatment process | |
| KR102110398B1 (en) | High frequency tempering device for multi-hardness of barrel | |
| JP3553207B2 (en) | Metal heat treatment equipment | |
| US20130319878A1 (en) | Electrolytic solution, electrolysis case, electropolishing system, and electropolishing method using these | |
| CN1179799C (en) | Surface treatment device | |
| JP2009256704A (en) | Lateral suspension tool, surface treating apparatus and method of treating surface of long material | |
| KR100633043B1 (en) | Copper plating apparatus | |
| JP2555262B2 (en) | Surface treatment equipment | |
| US3647675A (en) | Automatic rotary electrodeposition apparatus |
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 |
Application publication date: 20221025 |
|
| RJ01 | Rejection of invention patent application after publication |