CN108950671A - A kind of stainless base steel corrosion-proof wear coating structure and its preparation method and application - Google Patents
A kind of stainless base steel corrosion-proof wear coating structure and its preparation method and application Download PDFInfo
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- CN108950671A CN108950671A CN201811119458.3A CN201811119458A CN108950671A CN 108950671 A CN108950671 A CN 108950671A CN 201811119458 A CN201811119458 A CN 201811119458A CN 108950671 A CN108950671 A CN 108950671A
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- 238000000576 coating method Methods 0.000 title claims abstract description 118
- 239000011248 coating agent Substances 0.000 title claims abstract description 117
- 238000002360 preparation method Methods 0.000 title claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 54
- 239000010959 steel Substances 0.000 title claims abstract description 54
- 239000010935 stainless steel Substances 0.000 claims abstract description 150
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 150
- 229910018054 Ni-Cu Inorganic materials 0.000 claims abstract description 61
- 229910018481 Ni—Cu Inorganic materials 0.000 claims abstract description 61
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 41
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 39
- 239000011148 porous material Substances 0.000 claims abstract description 25
- 230000008569 process Effects 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 238000004070 electrodeposition Methods 0.000 claims abstract description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 31
- 238000005260 corrosion Methods 0.000 claims description 30
- 230000007797 corrosion Effects 0.000 claims description 24
- 238000005498 polishing Methods 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 23
- 229910002804 graphite Inorganic materials 0.000 claims description 23
- 239000010439 graphite Substances 0.000 claims description 23
- 238000005554 pickling Methods 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 15
- 230000005518 electrochemistry Effects 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000005238 degreasing Methods 0.000 claims description 8
- 238000007654 immersion Methods 0.000 claims description 8
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims description 7
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 6
- 239000007767 bonding agent Substances 0.000 claims description 5
- 229910052961 molybdenite Inorganic materials 0.000 claims description 4
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 239000012298 atmosphere Substances 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 3
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 239000001509 sodium citrate Substances 0.000 claims description 3
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 3
- 239000006061 abrasive grain Substances 0.000 claims description 2
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract description 7
- 239000002994 raw material Substances 0.000 abstract description 4
- 239000002585 base Substances 0.000 description 40
- 229910052751 metal Inorganic materials 0.000 description 13
- 239000002184 metal Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 238000011282 treatment Methods 0.000 description 8
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 238000002161 passivation Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000006056 electrooxidation reaction Methods 0.000 description 5
- 238000004381 surface treatment Methods 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910017604 nitric acid Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 238000005488 sandblasting Methods 0.000 description 2
- 238000005480 shot peening Methods 0.000 description 2
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 208000025865 Ulcer Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000009329 sexual behaviour Effects 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 231100000397 ulcer Toxicity 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
- C25F3/22—Polishing of heavy metals
- C25F3/24—Polishing of heavy metals of iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D15/00—Electrolytic or electrophoretic production of coatings containing embedded materials, e.g. particles, whiskers, wires
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
- C25D5/36—Pretreatment of metallic surfaces to be electroplated of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/48—After-treatment of electroplated surfaces
- C25D5/50—After-treatment of electroplated surfaces by heat-treatment
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/02—Etching
- C25F3/06—Etching of iron or steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
Abstract
The present invention discloses a kind of stainless base steel corrosion-proof wear coating structure, and including the stainless steel base set gradually and corrosion-proof wear coating, which includes passing through electro-deposition combination Ni-Cu/MC or Ni-Cu/NS2Coating, and PTFE/MC or PTFE/NS that heat treatment combines2Coating；MC is wear-resisting carbide, NS2For wear-resisting sulfide；The surface of stainless steel base is prepared with the nano-pore that aperture is 50~80nm.The coating structure reaches good corrosion-proof wear performance, and stainless steel base is tightly combined with coating；Obtained stainless steel is handled, the aperture of not only surfacing, nano-pore is smaller, is evenly distributed, and have extremely strong binding force between stainless steel and composite coating；The preparation method of stainless base steel corrosion-proof wear coating structure disclosed by the invention, cost is relatively low for preparation method, and raw material is common to be easy to get, and preparation manipulation process is simple, easy to promote and utilize.
Description
Technical field
The present invention relates to field of metal surface treatment technology, and in particular to a kind of stainless base steel corrosion-proof wear coating structure and
Preparation method and application.
Background technique
With development in science and technology, the mankind enter ocean increasing, and materials such as traditional stainless steel of being engaged in the activity such as production,
It is easy to happen chemical attack and electrochemical corrosion, in the seawater so as to cause the disasters sexual behavior such as material or equipment failure, damage
Therefore.Traditional noble coatings are with high costs as development bottleneck because coating.Therefore need to develop a kind of low in cost, technique letter
It is single, the excellent coating of corrosion resistant performance.
It includes spot corrosion, spot shape burn into ulcer that metal erosion, which can be divided into general corrosion local corrosion by corrosion characteristics classification,
Corrode, corrode between crystal class etc..Two major classes can be divided into first is that chemical attack, second is that electrochemistry is rotten according to the classification of corrosive medium situation
Erosion.Corrosion of metal destruction generally has the characteristics that following two: first is that destroying always since metal surface, then or fastly or slowly
Ground gos deep into the inside；Second is that corrosion of metal destruction often occurs simultaneously with shape change in most circumstances；Corrosion can shadow
Ring the continuity and safety of metal equipment use process.Corrosion mechanism is understood thus, and control corrosion rate speed takes anticorrosion to arrange
It applies, is to extend metal equipment service life, expands the important means of application range.Utilize the corruption such as coating isolation water, oxygen, acid, salt
The factor is lost, hinders it to the erosion of metal or the coating of application surface corrosion resistant, electronics larger using impedance of coating itself
Difficult characteristic is migrated, to reduce electrochemical corrosion.Therefore, anti-corrosion, a closed painting series of strata are carried out to steel by coating
System provides an inert shielded layer and protects steel surface, and the main film forming substance and steel surface in coating composition form jail
Solid adhesion strength, reach coating to the screen effect and anti-corrosion protection effect of steel surface.
Pass through a level pressure after metal surface forms nano aperture based on plastics-metal-integral composite forming technology
Power makes plastic melt enter metal-surface nano hole configurations, forms a kind of interlocking of micromechanical, significantly enhance plastics with
The adhesive strength of metal.
The preparation of stainless steel surface nano hole configurations acquires a certain degree of difficulty, and causes stainless steel base integrated with plastics compound
Difficulty is formed to increase.The metallic matrix that existing NMT technology uses is aluminium alloy mostly, metal and modeling on electronic component
The needs of package integral composite molding is widely used, but aluminum alloy materials are difficult to meet in terms of corrosion resistance and intensity.
The stainless steel base that NMT technology uses at present, general stainless steel surface is using mechanical coarsening sides such as shot-peening, sandblastings
Method, these methods can effectively improve the cleannes of stainless steel surface, but shot-peening process can generate a large amount of sand dust, can not be effective
It removes, and the surface apertures generated are larger, the adhesive force of subsequent composite coating preparation is inadequate, and the persistence of coating is inadequate, property
Requirement can be not achieved.
In addition, being etched into hole configurations to stainless steel surface mainly uses laser means, then one is carried out with plastics
Chemical conversion type, but the stainless steel after laser treatment, the easily ablated tissue in surface change, influence its overall performance, obtain
The molten hole size of hole is larger, and surrounding is smooth inhomogenous, with plastics ining conjunction with after be easy to produce stress concentration, lasting and leakproofness compared with
Difference.
Through retrieving, the report that stainless base steel corrosion-proof wear coating structure is prepared using NMT technology is not found temporarily in the prior art
Road.
Summary of the invention
The present invention is directed to the shortcomings that above-mentioned prior art, provides a kind of stainless base steel corrosion-proof wear coating structure, will be stainless
Steel surface is prepared with nano-pore, can effectively improve the combination of corrosion-proof wear coating and stainless steel surface, and coating structure selects
For multilayered structure, including electro-deposition combination Ni-Cu/MC or Ni-Cu/NS2Coating, and PTFE/MC or PTFE/ that heat treatment combines
NS2Coating can make coating structure reach good corrosion-proof wear performance, apply in corrosion-proof wear field, using extensive.
Another object of the present invention is to disclose the preparation method in the nano surface hole of above-mentioned stainless steel, pass through such method
It handles that obtained stainless steel surface is smooth, and the aperture of nano-pore is smaller, is evenly distributed, prepare composite coating to be subsequent on surface and mention
For good basis, the binding force between stainless steel and composite coating can be effectively increased, and the nano surface hole of this stainless steel can be big
Scale, mass production.
Another object of the present invention is to disclose the preparation method of above-mentioned stainless base steel corrosion-proof wear coating structure, this method
Easy to operate, technique is controllable, and the painting for being easily generalized to the coating of all kinds of steel surfaces is covered with.
Goal of the invention of the invention is achieved by the following technical programs:
Stainless base steel corrosion-proof wear coating structure disclosed by the invention, including the stainless steel base that sets gradually and anti-corrosion resistance to
Coating is ground, the corrosion-proof wear coating includes passing through electro-deposition combination Ni-Cu/MC or Ni-Cu/NS2Coating, and heat treatment combine
PTFE/MC or PTFE/NS2Coating；Wherein MC is wear-resisting carbide, NS2For wear-resisting sulfide；The stainless steel base
Surface is prepared with the nano-pore that aperture is 50~80nm.
It is further preferred that the MC is one kind of SiC or WC, the NS2For MoS2。
Another object of the present invention is to disclose the preparation side of the nano-pore of above-mentioned stainless base steel corrosion-proof wear coating structure
Method:
S1. stainless steel to be processed is subjected to surface preparation；The surface preparation includes pickling degreasing and polishing；
S2. electrobrightening: at room temperature, using the stainless steel after removing surface as anode, graphite electrode is as yin
Pole, with the H of 30wt.%~50wt.%2SO4With the H of 50wt.%~70wt.%3PO4Mixed solution be electrolytic polishing liquid,
Voltage is 10~40V, and polishing time is 2~5min；
S3. electrochemistry reaming: by step S2Electrobrightening after stainless steel as anode, graphite electrode as cathode,
It is placed on the HClO that volume fraction is 5%~10%4With 90%~95% (CH2OH)2Mixed liquor in, operating voltage 10
~40V, temperature are -10~0 DEG C, react 8~15min；Obtain the stainless steel that surface has nano-pore.
The present invention solves existing skill by surface preparation, electrobrightening and electrochemistry expanding treatment to stainless steel
In art, preparation difficult problem in stainless steel surface nano hole can effectively improve coating and substrate surface binding force, be conducive to subsequent
The preparation of stainless steel corrosion resistant coating.
Stainless steel plate is generally adopted by the production technologies such as rolling, and surface has thicker oxide skin, greasy dirt and other
The impurity etc. of contamination, pre-processes stainless steel surface before use: carrying out pickling degreasing processing to stainless steel surface first；Then
To the surface of oil removing, the sundries such as polishing cleaning scale removal are carried out.Subsequent electrobrightening can be improved in surface preparation
With the working efficiency of electrolysis reaming, while also avoiding because the surface passivations phenomenon such as the thicker oxide skin of stainless steel surface, causes
Electrochemical corrosion rate reduces.
Electrobrightening can remove the oxide skin of material surface, greasy dirt etc., keep stainless steel surface smooth, without other sundries,
It is to realize the equally distributed precondition in stainless steel surface nano hole；Pass through reasonable disposition mixed liquor in electrochemistry reaming procedure,
Current density is adjusted, the techniques such as time, temperature, the surfacing for the stainless steel for obtaining processing, the aperture of nano-pore is smaller, point
Cloth is uniform.
Further, in step S2 and step S3, the spacing of the stainless steel and graphite is 250mm~1000mm.This sets
Certifiable etchant solution even concentration is set, the quick etch polishing of stainless steel surface is enable, and can effectively increase reaming effect
Rate.
Further, in step S2 and step S3, the immersion liquid of the stainless steel (anode) and graphite electrode (cathode)
The ratio between middle work area is 1:1~2.5.The setting of this work area guarantees that anode normally dissolves, and prevents passivation phenomenon, with
Guarantee cation concn almost unchangedization in the electrolyte of electrobrightening and the mixed solution of electrochemistry reaming.
Further, in step S2, the electrolyte by mass fraction be 40% H2SO4With 60% H3PO4Mixing and
At.
Further, in step S2, the voltage is 20V, polishing time 3min.
Further, in step S3, the mixed liquor is the HClO that volume fraction is 6%4With 94% (CH2OH)2It is mixed
It closes, the operating voltage is 20V, and temperature is 0 DEG C, reacts 10min.
Further, in step S1, the pickling using 0.1M hydrochloric acid solution or 0.1M nitric acid solution, pickling 20~
30min。
Further, in step S1, the roughness of stainless steel surface is 35~65 μm after the surface treatment.
Another object of the present invention is to disclose a kind of preparation side of base steel corrosion-proof wear coating structure stainless from the above mentioned
Method, comprising the following steps:
Y1. Ni-Cu/MC or Ni-Cu/NS is prepared2Coating
Y11. there is the stainless steel of nano-pore to be placed in Ni-Cu electroplate liquid and be electroplated surface, the electroplate liquid by
80~120g/L nickel sulfate, 15~30g/L copper sulphate, 80~100g/L sodium citrate, 15~30g/L sodium chloride, 20~40g/L
Boric acid configures, and the pH of the electroplate liquid is 4.0~6.0；Electroplate liquid is added to the MC or NS of 0.1~10g/L2Resistance to abrasive grain
Son, abrasion-proof particle are dispersed in electroplate liquid；Stainless steel surface is set to obtain the Ni-Cu/MC or Ni-Cu/ of content 30wt.% copper
NS2Layer；
Y12. by the Ni-Cu/MC of acquisition or Ni-Cu/NS2Layer is heat-treated, and the heat treatment temperature is 300~400
DEG C, keep the temperature 2~4h；It obtains with Ni-Cu/MC or Ni-Cu/NS2The stainless steel of coating；
Y2. nanometer (Ni-Cu/MC or Ni-Cu/NS are prepared2)+(PTFE/MC or PTFE/NS2) coating
Y21. the PTFE suspension for configuring 10wt.%~30wt.%, adds the MC's or 10~15g/L of 2~8g/L
NS2Bonding agent obtains compound suspension；
Y22. configured compound suspension ultrasonic wave is dispersed into 2~4h, ultrasonic power uses 25~40KHz；
Y23. Ni-Cu/MC or Ni-Cu/NS will be had2The stainless steel of coating immerses in suspension, submerges 10~30min；
After dry 10~30min, continue to immerse, it is repeated multiple times；It obtains with nanometer (Ni-Cu/MC or Ni-Cu/NS2)+(PTFE/MC
Or PTFE/NS2) coating stainless steel；
Y33. acquisition had into nanometer (Ni-Cu/MC or Ni-Cu/NS2)+(PTFE/MC or PTFE/NS2) coating is not
Rust steel is placed in heat-treatment furnace, and 300 DEG C~350 DEG C heating and levelling curing process obtain stainless base steel corrosion-proof wear coating.
Further, in step Y11, the current density of the plating is 3~8A/dm2, temperature is 40 DEG C~60 DEG C.
Further, immersion number obtained in step Y23 is 3~6 times.
Further, heat treatment carries out in the protective atmosphere of argon gas or nitrogen in step Y12.Heat treatment is electroplated to eliminate
The levelling phenomenon of the structural stress of stainless base steel corrosion-proof wear coating structure and PTFE in the process.
Stainless base steel corrosion-proof wear coating structure of the invention is applied to acid-base environment, the strong work of marine corrosion
Make environment.
After the present invention is by the pretreatment to stainless steel, then using electrolyte processing, the items such as control processing time and temperature
Part, to prepare nano aperture structure on surface, obtained stainless steel surface nano hole configurations be stainless steel with it is anti-corrosion
Critical index in abrasion-resistant coating material composite molding, and this nano aperture structure distribution is uniform, corrosion-proof wear coating into
Enter to be formed with stainless steel surface after nano aperture structure very strong mechanical interlocked, coating can be effectively improved in conjunction with substrate surface
Power.
Cost is relatively low for the preparation method of stainless base steel corrosion-proof wear coating structure of the invention, and raw material is common to be easy to get, preparation
Operating process is simple, easy to promote and utilize.
Compared with prior art, beneficial effects of the present invention:
Stainless base steel corrosion-proof wear coating structure provided by the invention, will be prepared with the stainless steel surface of nano-pore, can have
Effect ground improves the combination of corrosion-proof wear coating and stainless steel surface, and coating structure is selected as multilayered structure, reaches coating structure
To good corrosion-proof wear performance, it is widely used.
The preparation method in the nano surface hole of stainless steel provided by the invention, passes through the surface preparation to stainless steel, electricity
Solution polishing and electrochemistry expanding treatment, solve in the prior art, the difficult problem of stainless steel surface nano hole preparation, can be effective
Coating and substrate surface binding force are improved, the preparation of subsequent stainless steel corrosion resistant coating is conducive to.
The preparation method of stainless base steel corrosion-proof wear coating structure provided by the invention, creatively by Ni-Cu/MC or
Ni-Cu/NS2Coating plating passes through modified preparation nanometer (Ni-Cu/MC or the Ni-Cu/ in surface in the stainless steel surface for having nano-pore
NS2)+(PTFE/MC or PTFE/NS2) coating, significantly enhance the adhesive strength of plastics and metal, preparation method cost compared with
Low, raw material is common to be easy to get, and preparation manipulation process is simple, easy to promote and utilize.
Detailed description of the invention
Fig. 1 is the flow chart of the preparation in the nano surface hole of stainless steel of the invention.
Fig. 2 is the surface metallograph of the untreated stainless-steel sheet of the prior art.
Fig. 3 is the stainless steel surface picture after electrobrightening of the invention.
Fig. 4 is stainless steel surface SEM photograph of the embodiment of the present invention 3 after nanometer pore-creating.
Fig. 5 is the stainless steel surface SEM photograph in comparative example 1 after nanometer pore-creating.
Fig. 6 is the SEM photograph of the Ni-Cu/SiC coating obtained after step Y1 of the embodiment of the present invention 9.
Fig. 7 is the Ni nanoparticle-Cu/SiC+PTFE/SiC coating stainless steel structure that the embodiment of the present invention 9 is prepared
SEM photograph
Fig. 8 is that the Ni nanoparticle-Cu/SiC+PTFE/SiC coating stainless steel structure that the embodiment of the present invention 9 is prepared is dynamic
Potential polarization test curve.
Specific embodiment
Present invention be described in more detail in the following with reference to the drawings and specific embodiments.For convenience of description, the following realities of the present invention
Reagent, the instrument and equipment etc. for applying example use are listed below, but therefore do not limit the present invention.
Inventor's statement, detailed process equipment and process flow of the invention that the present invention is explained by the above embodiments,
But the present invention is not limited to the above detailed process equipment and process flow, that is, it is above-mentioned detailed not mean that the present invention must rely on
Process equipment and process flow could be implemented.It should be clear to those skilled in the art, any improvement in the present invention,
Addition, selection of concrete mode of equivalence replacement and auxiliary element to each raw material of product of the present invention etc., all fall within of the invention
Within protection scope and the open scope.
Stainless base steel corrosion-proof wear coating structure provided by the invention, including the stainless steel base that sets gradually and anti-corrosion resistance to
Coating is ground, which includes passing through electro-deposition combination Ni-Cu/MC or Ni-Cu/NS2Coating, and heat treatment combination
PTFE/MC or PTFE/NS2Coating；Wherein MC is wear-resisting carbide, NS2For wear-resisting sulfide；The table of the stainless steel base
Wheat flour has the nano-pore that aperture is 50~80nm.
Meanwhile the preparation method in the nano surface hole of stainless steel provided by the invention, such as Fig. 1 pass through the table to stainless steel
Face pretreatment 1, electrobrightening 2 and electrochemistry expanding treatment 3, solve in the prior art, and the preparation of stainless steel surface nano hole is tired
Difficult problem, can effectively improve coating and substrate surface binding force, be conducive to the preparation of subsequent stainless steel corrosion resistant coating.
Wherein, surface preparation 1 includes that 101 stainless steel of pickling carries out surface degreasing, surface sand-blasting polishing and abrasive jet cleaning
102；Electrobrightening 2 is using the stainless steel after removing surface as anode, and graphite electrode is placed into configured electricity as cathode
It solves in polishing fluid, adjusting process parameter, carries out electrobrightening；Stainless steel after 3 electrobrightening of electrochemistry expanding treatment is as sun
Pole, graphite electrode place configured HClO as cathode4(CH2OH)2In handled, finally obtain pore size be 50
The stainless steel of~80nm.
The preparation method in the nano surface hole of 1 stainless steel of embodiment
The preparation method in the nano surface hole of the stainless steel of the present embodiment, comprising the following steps:
S1. stainless steel to be processed is subjected to surface preparation；The surface preparation includes pickling degreasing, polishing；
S2. electrobrightening: at room temperature, using the stainless steel after removing surface as anode, graphite electrode is as yin
Pole, the H of 30wt.%2SO4With the H of 70wt.%3PO4Mixed solution be electrolytic polishing liquid, be 10V in voltage, polishing time is
5min；
S3. electrochemistry reaming: using the stainless steel after the electrobrightening of step S2 as anode, graphite electrode as cathode,
It is placed on the HClO that volume fraction is 5%4With 95% (CH2OH)2Mixed liquor in, operating voltage 10V, temperature be -10
DEG C, react 15min；Obtain the stainless steel that surface has nano-pore.
Wherein, the spacing of the stainless steel and graphite of step S2 and step S3 is 250mm；Stainless steel (anode) and graphite electrode
The ratio between work area is 1:1 in the immersion liquid of (cathode)；In step S1, pickling uses the hydrochloric acid solution of 0.1M, pickling
20min.The roughness of stainless steel surface is 35~65 μm after surface treatment.
The preparation method in the nano surface hole of 2 stainless steel of embodiment
The preparation method in the nano surface hole of the stainless steel of the present embodiment, comprising the following steps:
S1. stainless steel to be processed is subjected to surface preparation；The surface preparation includes pickling degreasing, polishing；
S2. electrobrightening: at room temperature, using the stainless steel after removing surface as anode, graphite electrode is as yin
Pole, the H of 50wt.%2SO4With the H of 50wt.%3PO4Mixed solution be electrolytic polishing liquid, be 40V in voltage, polishing time is
2min；
S3. electrochemistry reaming: using the stainless steel after the electrobrightening of step S2 as anode, graphite electrode as cathode,
It is placed on the HClO that volume fraction is 10%4With 90% (CH2OH)2Mixed liquor in, operating voltage 40V, temperature be 0 DEG C,
React 8min；Obtain the stainless steel that surface has nano-pore.
Wherein, the spacing of the stainless steel and graphite of step S2 and step S3 is 800mm；Stainless steel (anode) and graphite electrode
The ratio between work area is 1:2.5 in the immersion liquid of (cathode)；In step S1, pickling uses the nitric acid solution of 0.1M, pickling
20min.The roughness of stainless steel surface is 35~65 μm after surface treatment.
The preparation method in the nano surface hole of 3 stainless steel of embodiment
The preparation method in the nano surface hole of the stainless steel of the present embodiment, comprising the following steps:
S1. stainless steel to be processed is subjected to surface preparation；The surface preparation includes pickling degreasing, polishing；
S2. electrobrightening: at room temperature, using the stainless steel after removing surface as anode, graphite electrode is as yin
Pole, the H of 40wt.%2SO4With the H of 60wt.%3PO4Mixed solution be electrolytic polishing liquid, be 20V in voltage, polishing time is
3min；
S3. electrochemistry reaming: using the stainless steel after the electrobrightening of step S2 as anode, graphite electrode as cathode,
It is placed on the HClO that volume fraction is 4%4With 96% (CH2OH)2Mixed liquor in, operating voltage 20V, temperature be 0 DEG C,
React 10min；Obtain the stainless steel that surface has nano-pore.
Wherein, the spacing of the stainless steel and graphite of step S2 and step S3 is 1000mm；Stainless steel (anode) and graphite electricity
The ratio between work area is 1:2.5 in the immersion liquid of pole (cathode)；In step S1, pickling uses the nitric acid solution of 0.1M, pickling
25min.The roughness of stainless steel surface is 35~65 μm after surface treatment.
4~embodiment of embodiment 6
The preparation method in the nano surface hole of the stainless steel of 1~embodiment of embodiment 3 obtains the stainless steel in nano surface hole
Respectively 4~embodiment of embodiment 6；Pore size is 50~80nm.Fig. 2 is untreated stainless-steel sheet surface amplification 100
Metallograph again, stainless steel surface is relatively rough as seen from the figure；Fig. 3 is the stainless steel surface amplification factor 2 after electrobrightening
Times picture, after stainless steel surface electrobrightening, stainless steel watch surface evenness is higher；Fig. 4 is embodiment 3 after nanometer pore-creating
Stainless steel surface SEM photograph, as seen from the figure, treated, and stainless steel surface is smooth, and the aperture of nano-pore is smaller, and distribution is equal
It is even；Fig. 5 is stainless steel surface SEM photograph of the comparative example 1 after nanometer pore-creating, as seen from the figure, treated stainless steel surface
Smooth, the aperture of nano-pore is significantly greater than the aperture of 1~embodiment of embodiment 3, and is distributed not uniform enough.
Comparative example 1
Application No. is a kind of preparation methods of stainless steel surface ordered micro-cellular structure of CN201410821884.7, including with
Lower step:
Y1. by 1mm thickness stainless steel plate wire cutting at the sample of 30mm × 20mm；
Y2. stainless steel is put into 836 type cleaner for metal ultrasonic cleaning 15min, carries out ungrease treatment；
Y3. electrochemical polish is carried out to the stainless steel after degreasing using WYK-15010K DC current regulator power supply, obtained
Specular surface；Electrochemical polishing process: stainless steel sample makees anode, and high purity graphite piece makees cathode, and cathode and annode area are than 3:
1, cathode anode spacing 50mm, it is 300ml/L H that electrolytic polishing liquid, which is by concentration,2SO4, 600ml/L H3PO4, 30ml/L the third three
The aqueous solution that alcohol is constituted, 85 DEG C of polishing fluid temperature, using constant flow method, current density 50A/dm2, polishing time 3min；Each step
Between rapid, stainless steel sample is both needed to after being cleaned up with deionized water, then carries out next step；
Y4. passivation for stainless steel is handled: polished stainless steel being put into 50% nitric acid solution and is passivated processing, is obtained
Obtain fine and close oxidation film；Passivation technology: passivation time 20min, temperature are room temperature.It is rinsed well again after passivation with deionized water
It is put into the phosphoric acid solution prepared and carries out electrochemical corrosion；
Y5. stainless steel electrochemical corrodes: using WYK-15010K DC current regulator power supply to stainless after Passivation Treatment
Steel curved beam carries out electrochemical corrosion, obtains ordered micro-cellular structure；Electrochemical corrosive process: stainless steel sample makees anode, Gao Chunshi
Ink sheet makees cathode, cathode and annode area ratio 3:1, and cathode anode spacing 50mm, electrochemical corrosive liquid is that phosphoric acid concentration is 15g/L
Aqueous solution, 0-5 DEG C of solution temperature, using galvanostatic method, current density 5A/dm2, etching time 120min；According to stainless
The purposes and requirement of steel part can control micro-pore diameter, adjustment electrification by adjusting the phosphoric acid concentration size of electrochemical corrosive liquid
It learns etching time and controls micropore depth.
Metallographic observation is carried out to the stainless steel surface that comparative example 1 obtains, as shown in figure 5, the size in its hole is about 300nm.
As shown in Figure 1, the stainless steel in the resulting nano surface hole of 4~embodiment of embodiment 6 is passed through cleaning treatment 4, clearly
Washing lotion selects ethyl alcohol or deionized water, and stainless steel surface is cleaned up, and places into electroplating device and carries out electroplating processes 5, obtains
Ni-Cu/MC or Ni-Cu/NS2Layer carries out surface modification treatment 6 and obtains with nanometer (Ni-Cu/MC or Ni-Cu/NS2)+
(PTFE/MC or PTFE/NS2) coating, heating and levelling curing process 7 is finally carried out, stainless base steel corrosion-proof wear coating is obtained.Tool
Body is implemented as follows.
The preparation method of the stainless base steel corrosion-proof wear coating structure of embodiment 7
3 method of embodiment is prepared on the basis of the nano surface hole of stainless steel, prepares stainless base steel corrosion-proof wear and applies
Layer structure, preparation method, comprising the following steps:
Y1. Ni-Cu/MC or Ni-Cu/NS is prepared2Coating
Y11. there is the stainless steel of nano-pore to be placed in Ni-Cu electroplate liquid and be electroplated surface, the electroplate liquid by
120g/L nickel sulfate, 30g/L copper sulphate, 90g/L sodium citrate, 20g/L sodium chloride, 30g/L boric acid configure, pH 4.0；
By the SiC abrasion-proof particle of electroplate liquid addition 0.1g/L, abrasion-proof particle is dispersed in electroplate liquid；Contain stainless steel surface
Measure the Ni-Cu/SiC layer of 30wt.% copper；
Y12. the Ni-Cu/SiC layer of acquisition is heat-treated, in the protective atmosphere of argon gas or nitrogen, heat treatment temperature
It is 300~400 DEG C, keeps the temperature 2~4h；Obtain the stainless steel with Ni-Cu/SiC coating；
Y2. Ni nanoparticle-Cu/SiC+PTFE/SiC coating is prepared
Y21. the PTFE suspension for configuring 10wt%, adds the SiC bonding agent of 8g/L, obtains compound suspension；
Y22. configured compound suspension ultrasonic wave is dispersed into 4h, ultrasonic power uses 25KHz；
Y23. the stainless steel with Ni-Cu/SiC+PTFE/SiC coating is immersed in suspension, impregnates 10min, it is dry
After 10min, continue to immerse 3 times；Obtain the stainless steel with Ni nanoparticle-Cu/SiC+PTFE/SiC coating；
Y33. the stainless steel with Ni nanoparticle-Cu/SiC+PTFE/SiC coating of acquisition is placed in heat-treatment furnace, 300
~350 DEG C of heating and levelling curing process obtain stainless base steel corrosion-proof wear coating.
The preparation method of the stainless base steel corrosion-proof wear coating structure of embodiment 8
3 method of embodiment is prepared on the basis of the nano surface hole of stainless steel, prepares stainless base steel corrosion-proof wear and applies
Layer structure, preparation method is substantially the same manner as Example 7, the difference is that, in step Y11, electroplate liquid is added into 10g/L
SiC abrasion-proof particle；In step Y21,30% PTFE suspension is configured, adds the SiC bonding agent of 2g/L；In step Y23, leaching
After bubble 30min, dry 30min, continue to immerse 6 times；Remaining step is identical as the preparation method of embodiment 7.
The preparation method of the stainless base steel corrosion-proof wear coating structure of embodiment 9
3 method of embodiment is prepared on the basis of the nano surface hole of stainless steel, prepares stainless base steel corrosion-proof wear and applies
Layer structure, preparation method is substantially the same manner as Example 7, the difference is that, in step Y11, electroplate liquid is added into 4.5g/
The SiC abrasion-proof particle of L；In step Y21,15% PTFE suspension is configured, adds the SiC bonding agent of 6g/L；In step Y22,
Configured compound suspension ultrasonic wave is dispersed into 2h, ultrasonic power uses 40KHz；In step Y23,15min is impregnated, it is dry
After 30min, continue to immerse 6 times；Remaining step is identical as the preparation method of embodiment 7.
The preparation method of the stainless base steel corrosion-proof wear coating structure of embodiment 10
3 method of embodiment is prepared on the basis of the nano surface hole of stainless steel, prepares stainless base steel corrosion-proof wear and applies
Layer structure, preparation method is substantially the same manner as Example 7, the difference is that, in step Y11, electroplate liquid is added into 10g/L
MoS2Abrasion-proof particle；Remaining step is identical as the preparation method of embodiment 7.
The preparation method of the stainless base steel corrosion-proof wear coating structure of embodiment 11
3 method of embodiment is prepared on the basis of the nano surface hole of stainless steel, prepares stainless base steel corrosion-proof wear and applies
Layer structure, preparation method is substantially the same manner as Example 7, the difference is that, in step Y11, electroplate liquid is added into 15g/L
MoS2Abrasion-proof particle；Remaining step is identical as the preparation method of embodiment 7.
The preparation method of the stainless base steel corrosion-proof wear coating structure of comparative example 2
Surface ordered micro-cellular structure stainless steel obtained in comparative example 1 is carried out to prepare stainless base steel corrosion-proof wear coating knot
Structure, preparation method are same as Example 9.
The stainless base steel corrosion-proof wear coating structure for implementing to be prepared in 8~embodiment 11 and comparative example 2 is applied
The salt spray test of layer, wear-resisting experiment and acid and alkali-resistance experiment.Specific experimental method is as follows:
(1) 240h neutral salt spray test, 3.5 ω t% under room temperature salt spray test: are carried out according to GB/T10125-2012 standard
Neutral brine impregnates 1000h.
(2) acid and alkali-resistance is tested: acidproof experiment is at 70 DEG C, the H of 0.5mol/L2SO4Test corrosion electricity in+2ppm HF environment
Stream；Alkaline-resisting experiment tests corrosion current in the NaOH environment of 0.1mol/L at 60 DEG C.
Its specific experiment data is shown in Table 1.
Table 1
Fig. 6~Fig. 7 is the SEM photograph and Ni nanoparticle-Cu/ for the Ni-Cu/SiC coating that embodiment 9 obtains after step Y1
The SEM photograph of SiC+PTFE/SiC coating stainless steel structure.Electroplated coating surface roughness is higher, this leads to the friction system of coating
Number is big and corrosion resistant performance declines, and the surface after the immersion such as PTFE, concave and convex part is effectively particle-filled by PTFE etc., surface
Flatness improves, and corrosion resistant performance and surface lubrication effect improve.
Fig. 8 is the stainless base steel corrosion-proof wear coating structure that is prepared of 9 method of embodiment at 70 DEG C, 0.5MH2SO4+
The dynamic potential polarization curve of 2ppmHF solution environmental test, the corrosion current of curvilinear surface coating are 0.43 μ A/cm2, coating
Excellent corrosion resistance.
By the experimental results showed that, this stainless base steel corrosion-proof wear coating structure has extremely strong anti acid alkali performance and wearability,
It can be widely applied to acid-base environment, the strong working environment of marine corrosion has huge economic benefit.
Obviously, above-described embodiment is only intended to clearly illustrate technical solution of the present invention example, and is not
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.It is done within the spirit and principles of the present invention it is any modification, etc.
With replacement and improvement etc., should be included within the protection of the claims in the present invention.
Claims (10)
1. a kind of stainless base steel corrosion-proof wear coating structure, which is characterized in that including the stainless steel base that sets gradually and anti-corrosion
Wear-resistant coating, the corrosion-proof wear coating include passing through electro-deposition combination Ni-Cu/MC or Ni-Cu/NS2Coating, and heat treatment knot
The PTFE/MC or PTFE/NS of conjunction2Coating；Wherein MC is wear-resisting carbide, NS2For wear-resisting sulfide；The stainless steel base
Surface be prepared with aperture be 50~80nm nano-pore.
2. stainless base steel corrosion-proof wear coating structure according to claim 1, which is characterized in that the MC is SiC's or WC
One kind, the NS2For MoS2。
3. stainless base steel corrosion-proof wear coating structure according to claim 1, which is characterized in that the preparation side of the nano-pore
Method are as follows:
S1. stainless steel to be processed is subjected to surface preparation；The surface preparation includes pickling degreasing and polishing；
S2. electrobrightening: at room temperature, using the stainless steel after removing surface as anode, graphite electrode as cathode, with
The H of 30wt.%~50wt.%2SO4With the H of 50wt.%~70wt.%3PO4Mixed solution be electrolytic polishing liquid, in voltage
For 10~40V, polishing time is 2~5min；
S3. electrochemistry reaming: using the stainless steel after the electrobrightening of step S2 as anode, graphite electrode is placed as cathode
The HClO for being 5%~10% in volume fraction4With 90%~95% (CH2OH)2Mixed liquor in, operating voltage be 10~
40V, temperature are -10~0 DEG C, react 8~15min；Obtain the stainless steel that surface has nano-pore.
4. stainless base steel corrosion-proof wear coating structure according to claim 3, which is characterized in that in step S2 and step S3,
The spacing of the stainless steel and graphite is 250mm~1000mm.
5. stainless base steel corrosion-proof wear coating structure according to claim 3, which is characterized in that in step S2 and step S3,
The ratio between work area is 1:1~2.5 in the immersion liquid of the stainless steel (anode) and graphite electrode (cathode).
6. a kind of preparation method of base steel corrosion-proof wear coating structure stainless according to 1~5 any one of right, feature exist
In, comprising the following steps:
Y1. Ni-Cu/MC or Ni-Cu/NS is prepared2Coating
Y11. there is the stainless steel of nano-pore to be placed in Ni-Cu electroplate liquid and be electroplated surface, the electroplate liquid by 80~
120g/L nickel sulfate, 15~30g/L copper sulphate, 80~100g/L sodium citrate, 15~30g/L sodium chloride, 20~40g/L boric acid
It configures, the pH of the electroplate liquid is 4.0~6.0；Electroplate liquid is added to the MC or NS of 0.1~10g/L2Abrasion-proof particle, it is resistance to
Abrasive grain is dispersed in electroplate liquid；Stainless steel surface is set to obtain the Ni-Cu/MC or Ni-Cu/NS of content 30wt.% copper2
Layer；
Y12. by the Ni-Cu/MC of acquisition or Ni-Cu/NS2Layer is heat-treated, and the heat treatment temperature is 300~400 DEG C, is protected
2~4h of temperature；It obtains with Ni-Cu/MC or Ni-Cu/NS2The stainless steel of coating；
Y2. nanometer (Ni-Cu/MC or Ni-Cu/NS are prepared2)+(PTFE/MC or PTFE/NS2) coating
Y21. the PTFE suspension for configuring 10wt.%~30wt.%, adds the NS of the MC or 10~15g/L of 2~8g/L2Bonding
Agent obtains compound suspension；
Y22. configured compound suspension ultrasonic wave is dispersed into 2~4h, ultrasonic power uses 25~40KHz；
Y23. Ni-Cu/MC or Ni-Cu/NS will be had2The stainless steel of coating immerses in suspension, submerges 10~30min；Dry 10
After~30min, continue to immerse, it is repeated multiple times；It obtains with nanometer (Ni-Cu/MC or Ni-Cu/NS2)+(PTFE/MC or PTFE/
NS2) coating stainless steel；
Y33. acquisition had into nanometer (Ni-Cu/MC or Ni-Cu/NS2)+(PTFE/MC or PTFE/NS2) coating stainless steel
It is placed in heat-treatment furnace, 300 DEG C~350 DEG C heating and levelling curing process obtain stainless base steel corrosion-proof wear coating.
7. the preparation method of stainless base steel corrosion-proof wear coating structure according to right 6, which is characterized in that in step Y11, institute
The current density for stating plating is 3~8A/dm2, temperature is 40 DEG C~60 DEG C.
8. the preparation method of stainless base steel corrosion-proof wear coating structure according to right 6, which is characterized in that institute in step Y23
The immersion number obtained is 3~6 times.
9. the preparation method of stainless base steel corrosion-proof wear coating structure according to right 6, which is characterized in that hot in step Y12
Processing carries out in the protective atmosphere of argon gas or nitrogen.
10. a kind of base steel corrosion-proof wear coating structure stainless according to 1~5 any one of right is applied to acid-base environment,
The strong working environment of marine corrosion.
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| CN111663159A (en) * | 2020-06-23 | 2020-09-15 | 上海理工大学 | Preparation method of wear-resistant silicon carbide doped composite coating |
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| CN111663159A (en) * | 2020-06-23 | 2020-09-15 | 上海理工大学 | Preparation method of wear-resistant silicon carbide doped composite coating |
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