CN117900105B - 一种高耐磨铝合金外壳及其制备工艺 - Google Patents
一种高耐磨铝合金外壳及其制备工艺 Download PDFInfo
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- CN117900105B CN117900105B CN202410058321.0A CN202410058321A CN117900105B CN 117900105 B CN117900105 B CN 117900105B CN 202410058321 A CN202410058321 A CN 202410058321A CN 117900105 B CN117900105 B CN 117900105B
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- fluorine
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- amino acid
- corrosion inhibitor
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 46
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000011737 fluorine Substances 0.000 claims abstract description 58
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 58
- 238000005260 corrosion Methods 0.000 claims abstract description 49
- 230000007797 corrosion Effects 0.000 claims abstract description 49
- 238000011282 treatment Methods 0.000 claims abstract description 40
- 239000003112 inhibitor Substances 0.000 claims abstract description 39
- 150000003862 amino acid derivatives Chemical class 0.000 claims abstract description 34
- 239000004814 polyurethane Substances 0.000 claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 claims abstract description 24
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims abstract description 21
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000005058 Isophorone diisocyanate Substances 0.000 claims abstract description 11
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 11
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000012975 dibutyltin dilaurate Substances 0.000 claims abstract description 11
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 11
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 11
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 11
- CIYUYQKCCSTMPJ-UHFFFAOYSA-N N[Mo](=S)=S Chemical compound N[Mo](=S)=S CIYUYQKCCSTMPJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 8
- 239000000243 solution Substances 0.000 claims description 70
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 62
- 239000002585 base Substances 0.000 claims description 51
- 238000005406 washing Methods 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 24
- 238000005242 forging Methods 0.000 claims description 20
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 17
- 239000008367 deionised water Substances 0.000 claims description 16
- 229910021641 deionized water Inorganic materials 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 15
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical class S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims description 15
- 239000013384 organic framework Substances 0.000 claims description 15
- 239000011253 protective coating Substances 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 13
- 238000005470 impregnation Methods 0.000 claims description 13
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 claims description 12
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims description 12
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 12
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 10
- 239000004201 L-cysteine Substances 0.000 claims description 10
- 235000013878 L-cysteine Nutrition 0.000 claims description 10
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 10
- 229960001545 hydrotalcite Drugs 0.000 claims description 10
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 239000011259 mixed solution Substances 0.000 claims description 7
- YSWBFLWKAIRHEI-UHFFFAOYSA-N 4,5-dimethyl-1h-imidazole Chemical compound CC=1N=CNC=1C YSWBFLWKAIRHEI-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- QZAXONBUUURRQX-UHFFFAOYSA-N [B].CP(C)C1=CC=CC=C1 Chemical compound [B].CP(C)C1=CC=CC=C1 QZAXONBUUURRQX-UHFFFAOYSA-N 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- KCLIFOXATBWLMW-UHFFFAOYSA-M sodium;ethane-1,2-diamine;ethanesulfonate Chemical compound [Na+].NCCN.CCS([O-])(=O)=O KCLIFOXATBWLMW-UHFFFAOYSA-M 0.000 claims description 6
- XIOUDVJTOYVRTB-UHFFFAOYSA-N 1-(1-adamantyl)-3-aminothiourea Chemical compound C1C(C2)CC3CC2CC1(NC(=S)NN)C3 XIOUDVJTOYVRTB-UHFFFAOYSA-N 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-M Methacrylate Chemical compound CC(=C)C([O-])=O CERQOIWHTDAKMF-UHFFFAOYSA-M 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 5
- 238000004108 freeze drying Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 5
- 238000005498 polishing Methods 0.000 claims description 5
- 230000001376 precipitating effect Effects 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- 238000000967 suction filtration Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 238000001953 recrystallisation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- BZZXQZOBAUXLHZ-UHFFFAOYSA-N (c-methylsulfanylcarbonimidoyl)azanium;sulfate Chemical compound CSC(N)=N.CSC(N)=N.OS(O)(=O)=O BZZXQZOBAUXLHZ-UHFFFAOYSA-N 0.000 claims 1
- 125000000066 S-methyl group Chemical group [H]C([H])([H])S* 0.000 abstract description 7
- 125000003396 thiol group Chemical class [H]S* 0.000 abstract description 5
- JVJVAVWMGAQRFN-UHFFFAOYSA-N 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluorooctyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F JVJVAVWMGAQRFN-UHFFFAOYSA-N 0.000 abstract description 3
- 239000004970 Chain extender Substances 0.000 abstract description 3
- 229920001730 Moisture cure polyurethane Polymers 0.000 abstract description 3
- 239000003054 catalyst Substances 0.000 abstract description 3
- 229910021536 Zeolite Inorganic materials 0.000 abstract description 2
- 239000002981 blocking agent Substances 0.000 abstract description 2
- 239000010457 zeolite Substances 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 230000000844 anti-bacterial effect Effects 0.000 description 7
- 238000012360 testing method Methods 0.000 description 6
- 150000001413 amino acids Chemical class 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 description 3
- 239000013154 zeolitic imidazolate framework-8 Substances 0.000 description 3
- MFLKDEMTKSVIBK-UHFFFAOYSA-N zinc;2-methylimidazol-3-ide Chemical compound [Zn+2].CC1=NC=C[N-]1.CC1=NC=C[N-]1 MFLKDEMTKSVIBK-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000012650 click reaction Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- ZOZLFBZFMZKVFW-UHFFFAOYSA-N aluminum;zinc Chemical compound [Al+3].[Zn+2] ZOZLFBZFMZKVFW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- KEROTHRUZYBWCY-UHFFFAOYSA-N tridecyl 2-methylprop-2-enoate Chemical compound CCCCCCCCCCCCCOC(=O)C(C)=C KEROTHRUZYBWCY-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Inorganic materials [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D18/00—Pressure casting; Vacuum casting
- B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
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- 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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/18—Processes for applying liquids or other fluent materials performed by dipping
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- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
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- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
- B05D5/083—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface involving the use of fluoropolymers
-
- 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
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- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
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- 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
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
- C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
- C23F11/14—Nitrogen-containing compounds
- C23F11/144—Aminocarboxylic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- B05D2202/00—Metallic substrate
- B05D2202/20—Metallic substrate based on light metals
- B05D2202/25—Metallic substrate based on light metals based on Al
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Crystallography & Structural Chemistry (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
本发明涉及铝合金技术领域,具体是一种高耐磨铝合金外壳及其制备工艺,在铝合金表面通过多次浸渍处理,在其表面预先生长水滑石层,然后得到表面生长连续致密的沸石咪唑骨架的膜层,利用真空浸渍引入含氟胍基化氨基酸衍生缓蚀剂;以L‑半胱氨酸与S‑甲基异脲半硫酸盐为原料,制备得到含有巯基的胍基化中间制剂,然后与甲基丙烯酸全氟辛酯合成了含氟胍基化氨基酸衍生缓蚀剂;以羟基封端聚二甲基硅氧烷、聚乙二醇、异佛尔酮二异氰酸酯为原料,二月桂酸二丁基锡为催化剂制备聚氨酯预聚体,然后以含氟胍基化氨基酸衍生缓蚀剂为扩链剂,氨基化二硫化钼为封端剂,乙二胺为中和剂制备含氟有机硅改性聚氨酯。
Description
技术领域
本发明涉及铝合金技术领域,具体是一种高耐磨铝合金外壳及其制备工艺。
背景技术
随着现代科技的发展,因为服役条件日益苛刻,对材料性能的要求越来越高,以致单纯的金属材料难以满足需求,而铝合金因密度低、强度高、可回收等特点,被广泛应用于航空航天、交通运输、电子等领域,是飞机、汽车、装备、电子产品等结构轻量化的重要保障。
但由于铝合金中的金属化合物可作为阳极或阴极,导致其在服役时易遭受局部腐蚀,进而影响设备平稳运行,同时其不高的耐磨性也限制了其使用范围,因此,制备一种高耐磨耐腐蚀的铝合金具有重要的意义。
发明内容
本发明的目的在于提供一种高耐磨铝合金外壳及其制备工艺,以解决现有技术中的问题。
为了解决上述技术问题,本发明提供如下技术方案:
一种高耐磨铝合金外壳的制备工艺,包括以下步骤:
S1:取A356铝合金为原料,液态模锻成型,得到基件;
S2:对基件进行固溶处理,依次进行磨砂、抛光、碱洗、酸洗、水洗、干燥,得到预处理基件;
S3:将预处理基件放入一次浸渍液中,一次浸渍处理,得到表面预制水滑石基件;
S4:将表面预制水滑石基件放入二次浸渍液中,二次浸渍处理,得到表面生长有机骨架膜层的基件;
S5:将表面生长有机骨架膜层的基件放入含有含氟胍基化氨基酸衍生缓蚀剂的丙酮溶液中,真空浸渍处理,得到改性基件;
S6:用含氟有机硅改性聚氨酯作为防护涂料,将防护涂料涂覆到改性基件上,固化,得到一种高耐磨铝合金外壳。
进一步的,液态模锻成型的工作条件为:采用400t液态模锻机,模具预热温度为255-260℃,浇注温度为700-705℃,液锻压力为132MPa,保压时间为30s。
进一步的,固溶处理的工作条件为:在525-530℃保温30-40min,然后在200-205℃保温1-2h。
进一步的,一次浸渍处理的工作条件为:在75-80℃保温22-24h;一次浸渍液为:以去离子水为溶剂,其中有62.5g/L六水合硝酸锌、30g/L尿素。
进一步的,二次浸渍处理的工作条件为:在138-142℃保温22-24h;二次浸渍液为:以甲醇为溶剂,其中有82g/L二甲基咪唑。
进一步的,含氟胍基化氨基酸衍生缓蚀剂的制备包括以下步骤:
(1)将L-半胱氨酸、NaOH溶液混合,加入S-甲基异脲半硫酸盐、NaOH溶液的混合液,调节溶液pH为10-10.2,在2-5℃搅拌至pH为中性,加入盐酸将溶液pH调节为3.3-3.5,过滤、洗涤,转移到去离子水中,用稀盐酸沉淀重结晶,洗涤、干燥,得到胍基化中间制剂;
(2)将胍基化中间制剂、甲基丙烯酸十三氟辛酯、丙酮混合,加入二甲基苯基膦硼烷,在48-52℃保温5-6h,得到含氟胍基化氨基酸衍生缓蚀剂。
进一步的,含氟有机硅改性聚氨酯的制备包括以下步骤:
在氩气保护下,将异佛尔酮二异氰酸酯、丙酮、羟基封端聚二甲基硅氧烷、聚乙二醇混合,加入二月桂酸二丁基锡、丙酮的混合液,在65-75℃保温2-3h,加入含氟胍基化氨基酸衍生缓蚀剂,继续保温1h,将温度降至55-60℃,加入氨基化二硫化钼,继续保温1-2h,加入乙二胺与丙酮的混合液,出料,得到含氟有机硅改性聚氨酯。
进一步的,以质量份数计,含氟有机硅改性聚氨酯的原料为:4-6份异佛尔酮二异氰酸酯、3-15份丙酮、1份羟基封端聚二甲基硅氧烷、l-4份聚乙二醇、0.1-0.3份二月桂酸二丁基锡、0.5-1份含氟胍基化氨基酸衍生缓蚀剂、0.8-1份氨基化二硫化钼、1-3份乙二胺。
进一步的,氨基化二硫化钼的制备包括以下步骤:将二硫化钼、正丁基锂正己烷溶液混合,18-25℃保温46-48h,抽滤、洗涤、烘干,加入去离子水,超声搅拌22-24h,加入乙二胺基乙磺酸钠水溶液,超声搅拌16-18h,离心、洗涤、冻干,得到氨基化二硫化钼。
本发明的有益效果:
本发明提供一种高耐磨铝合金外壳及其制备工艺,制备了一种高强度、耐腐蚀、抗菌的高耐磨铝合金外壳。
为了提高铝合金的耐腐蚀性,在铝合金表面通过多次浸渍处理,在其表面先预生长水滑石层,提高铝合金表面强度、刚度、浸润性,然后利用水滑石层提供锌离子作为有机金属骨架ZIF-8层生长的成核位点,从而得到表面生长连续致密的沸石咪唑骨架的膜层,之后以有机金属骨架ZIF-8为缓蚀剂的纳米容器,利用真空浸渍引入含氟胍基化氨基酸衍生缓蚀剂,得到耐腐蚀、抗菌的改性基件;
本发明本着绿色环保的理念,以天然氨基酸L-半胱氨酸为原料,制备多功能氨基酸衍生缓蚀剂作为插层剂与功能组分加入有机骨架膜层内,在铝合金表面构建高耐蚀、抗菌、疏水膜层的防护;先利用既有巯基又有氨基的L-半胱氨酸与S-甲基异脲半硫酸盐为原料,制备得到含有巯基的胍基化中间制剂,然后利用巯基-烯点击反应,与甲基丙烯酸全氟辛酯合成了含氟胍基化氨基酸衍生缓蚀剂,将其引入铝合金表面,赋予铝合金优异的抗菌性与耐腐蚀性、耐水性。
为了赋予铝合金表面优秀的耐磨性,制备含氟有机硅改性聚氨酯作为防护涂料,用羟基封端聚二甲基硅氧烷、聚乙二醇、异佛尔酮二异氰酸酯为原料,二月桂酸二丁基锡为催化剂制备聚氨酯预聚体,然后以含氟胍基化氨基酸衍生缓蚀剂为扩链剂,氨基化二硫化钼为封端剂,乙二胺为中和剂制备含氟有机硅改性聚氨酯,将其涂覆在改性基件表面,大幅提高铝合金表面的耐水性、耐磨性与抗菌性,从而延长铝合金表面的使用寿命。
具体实施方式
下面将结合本发明的实施例,对本发明中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
需要说明,若本发明实施例中有涉及方向性指示诸如上、下、左、右、前、后,则该方向性指示仅用于解释在某一特定姿态如各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本发明要求的保护范围之内。
以下结合具体实施例对本发明的技术方案作进一步详细说明,应当理解,以下实施例仅仅用以解释本发明,并不用于限定本发明。
实施例1:一种高耐磨铝合金外壳的制备工艺,包括以下步骤:
S1:取A356铝合金为原料,液态模锻成型,得到基件;
液态模锻成型的工作条件为:采用400t液态模锻机,模具预热温度为255℃,浇注温度为700℃,液锻压力依次为132MPa,保压时间为30s;
S2:对基件进行固溶处理,依次进行磨砂、抛光、碱洗、酸洗、水洗、干燥,得到预处理基件;
固溶处理的工作条件为:在525℃保温40min,然后在200℃保温2h;
S3:将预处理基件放入一次浸渍液中,一次浸渍处理,得到表面预制水滑石基件;
一次浸渍处理的工作条件为:在75℃保温24h;一次浸渍液为:以去离子水为溶剂,62.5g/L六水合硝酸锌、30g/L尿素;
S4:将表面预制水滑石基件放入二次浸渍液中,二次浸渍处理,得到表面生长有机骨架膜层的基件;
二次浸渍处理的工作条件为:在142℃保温22h;二次浸渍液为:以甲醇为溶剂,其中有82g/L二甲基咪唑;
S5:将表面生长有机骨架膜层的基件放入含有含氟胍基化氨基酸衍生缓蚀剂的丙酮溶液中,真空浸渍处理,得到改性基件;
真空浸渍处理的工作条件为:将10g表面生长有机骨架膜层的基件放入含有52g含氟胍基化氨基酸衍生缓蚀剂的1L丙酮溶液中,转移到真空环境中放置25min,将气压降至0.05MPa,在30℃保温2h;
含氟胍基化氨基酸衍生缓蚀剂的制备包括以下步骤:
(1)将12.1gL-半胱氨酸、50mL2mol/LNaOH溶液混合,加入14.8gS-甲基异脲半硫酸盐、50mL2mol/LNaOH溶液的混合液,调节溶液pH为10,在2℃搅拌至pH为中性,加入盐酸将溶液pH调节为3.3,过滤、洗涤,转移到去离子水中,用稀盐酸沉淀重结晶,洗涤、干燥,得到胍基化中间制剂;
(2)将4g胍基化中间制剂、10.8g甲基丙烯酸十三氟辛酯、10mL丙酮混合,加入0.025mL二甲基苯基膦硼烷,在48℃保温6h,得到含氟胍基化氨基酸衍生缓蚀剂;
S6:用含氟有机硅改性聚氨酯作为防护涂料,将防护涂料涂覆到改性基件上,固化,得到一种高耐磨铝合金外壳;
含氟有机硅改性聚氨酯的制备包括以下步骤:
在氩气保护下,以质量份数计,将4份异佛尔酮二异氰酸酯、1份丙酮、1份羟基封端聚二甲基硅氧烷、l份聚乙二醇混合,加入0.1份二月桂酸二丁基锡、1份丙酮的混合液,在65℃保温2h,加入0.5份含氟胍基化氨基酸衍生缓蚀剂,继续保温1h,将温度降至55℃,加入0.8份氨基化二硫化钼,继续保温1h,加入1份乙二胺与1份丙酮,出料,得到含氟有机硅改性聚氨酯;
氨基化二硫化钼的制备包括以下步骤:将1g二硫化钼、30mL2.5mol/L正丁基锂正己烷溶液混合,18℃保温48h,抽滤、洗涤、烘干,加入1L去离子水,超声搅拌22h,加入4.8g质量浓度为50%的乙二胺基乙磺酸钠水溶液,超声搅拌16h,离心、洗涤、冻干,得到氨基化二硫化钼。
实施例2:一种高耐磨铝合金外壳的制备工艺,包括以下步骤:
S1:取A356铝合金为原料,液态模锻成型,得到基件;
液态模锻成型的工作条件为:采用400t液态模锻机,模具预热温度为258℃,浇注温度为703℃,液锻压力依次为132MPa,保压时间为30s;
S2:对基件进行固溶处理,依次进行磨砂、抛光、碱洗、酸洗、水洗、干燥,得到预处理基件;
固溶处理的工作条件为:在528℃保温35min,然后在203℃保温1.5h;
S3:将预处理基件放入一次浸渍液中,一次浸渍处理,得到表面预制水滑石基件;
一次浸渍处理的工作条件为:在78℃保温23h;一次浸渍液为:以去离子水为溶剂,62.5g/L六水合硝酸锌、30g/L尿素;
S4:将表面预制水滑石基件放入二次浸渍液中,二次浸渍处理,得到表面生长有机骨架膜层的基件;
二次浸渍处理的工作条件为:在140℃保温23h;二次浸渍液为:以甲醇为溶剂,其中有82g/L二甲基咪唑;
S5:将表面生长有机骨架膜层的基件放入含有含氟胍基化氨基酸衍生缓蚀剂的丙酮溶液中,真空浸渍处理,得到改性基件;
真空浸渍处理的工作条件为:将10g表面生长有机骨架膜层的基件放入含有52g含氟胍基化氨基酸衍生缓蚀剂的1L丙酮溶液中,转移到真空环境中放置28min,将气压降至0.06MPa,在33℃保温1.5h;
含氟胍基化氨基酸衍生缓蚀剂的制备包括以下步骤:
(1)将12.1gL-半胱氨酸、50mL2mol/LNaOH溶液混合,加入14.8gS-甲基异脲半硫酸盐、50mL2mol/LNaOH溶液的混合液,调节溶液pH为10.1,在3℃搅拌至pH为中性,加入盐酸将溶液pH调节为3.4,过滤、洗涤,转移到去离子水中,用稀盐酸沉淀重结晶,洗涤、干燥,得到胍基化中间制剂;
(2)将4g胍基化中间制剂、10.8g甲基丙烯酸十三氟辛酯、10mL丙酮混合,加入0.025mL二甲基苯基膦硼烷,在50℃保温5.5h,得到含氟胍基化氨基酸衍生缓蚀剂;
S6:用含氟有机硅改性聚氨酯作为防护涂料,将防护涂料涂覆到改性基件上,固化,得到一种高耐磨铝合金外壳;
含氟有机硅改性聚氨酯的制备包括以下步骤:
在氩气保护下,以质量份数计,将5份异佛尔酮二异氰酸酯、3份丙酮、1份羟基封端聚二甲基硅氧烷、2份聚乙二醇混合,加入0.2份二月桂酸二丁基锡、3份丙酮的混合液,在70℃保温2.5h,加入0.7份含氟胍基化氨基酸衍生缓蚀剂,继续保温1h,将温度降至55-60℃,加入0.9份氨基化二硫化钼,继续保温1.5h,加入2份乙二胺与3份丙酮,出料,得到含氟有机硅改性聚氨酯;
氨基化二硫化钼的制备包括以下步骤:将1g二硫化钼、30mL2.5mol/L正丁基锂正己烷溶液混合,20℃保温47h,抽滤、洗涤、烘干,加入1L去离子水,超声搅拌23h,加入4.8g质量浓度为50%的乙二胺基乙磺酸钠水溶液,超声搅拌17h,离心、洗涤、冻干,得到氨基化二硫化钼。
实施例3:一种高耐磨铝合金外壳的制备工艺,包括以下步骤:
S1:取A356铝合金为原料,液态模锻成型,得到基件;
液态模锻成型的工作条件为:采用400t液态模锻机,模具预热温度为260℃,浇注温度为705℃,液锻压力依次为132MPa,保压时间为30s;
S2:对基件进行固溶处理,依次进行磨砂、抛光、碱洗、酸洗、水洗、干燥,得到预处理基件;
固溶处理的工作条件为:在530℃保温30min,然后在205℃保温1h;
S3:将预处理基件放入一次浸渍液中,一次浸渍处理,得到表面预制水滑石基件;
一次浸渍处理的工作条件为:在80℃保温22h;一次浸渍液为:以去离子水为溶剂,62.5g/L六水合硝酸锌、30g/L尿素;
S4:将表面预制水滑石基件放入二次浸渍液中,二次浸渍处理,得到表面生长有机骨架膜层的基件;
二次浸渍处理的工作条件为:在142℃保温22h;二次浸渍液为:以甲醇为溶剂,其中有82g/L二甲基咪唑;
S5:将表面生长有机骨架膜层的基件放入含有含氟胍基化氨基酸衍生缓蚀剂的丙酮溶液中,真空浸渍处理,得到改性基件;
真空浸渍处理的工作条件为:将10g表面生长有机骨架膜层的基件放入含有52g含氟胍基化氨基酸衍生缓蚀剂的1L丙酮溶液中,转移到真空环境中放置30min,将气压降至0.07MPa,在35℃保温1h;
含氟胍基化氨基酸衍生缓蚀剂的制备包括以下步骤:
(1)将12.1gL-半胱氨酸、50mL2mol/LNaOH溶液混合,加入14.8gS-甲基异脲半硫酸盐、50mL2mol/LNaOH溶液的混合液,调节溶液pH为10.2,在5℃搅拌至pH为中性,加入盐酸将溶液pH调节为3.5,过滤、洗涤,转移到去离子水中,用稀盐酸沉淀重结晶,洗涤、干燥,得到胍基化中间制剂;
(2)将4g胍基化中间制剂、10.8g甲基丙烯酸十三氟辛酯、10mL丙酮混合,加入0.025mL二甲基苯基膦硼烷,在52℃保温5h,得到含氟胍基化氨基酸衍生缓蚀剂;
S6:用含氟有机硅改性聚氨酯作为防护涂料,将防护涂料涂覆到改性基件上,固化,得到一种高耐磨铝合金外壳;
含氟有机硅改性聚氨酯的制备包括以下步骤:
在氩气保护下,以质量份数计,将6份异佛尔酮二异氰酸酯、5份丙酮、1份羟基封端聚二甲基硅氧烷、4份聚乙二醇混合,加入0.3份二月桂酸二丁基锡、5份丙酮的混合液,在75℃保温2h,加入1份含氟胍基化氨基酸衍生缓蚀剂,继续保温1h,将温度降至60℃,加入1份氨基化二硫化钼,继续保温2h,加入3份乙二胺与5份丙酮,出料,得到含氟有机硅改性聚氨酯;
氨基化二硫化钼的制备包括以下步骤:将1g二硫化钼、30mL2.5mol/L正丁基锂正己烷溶液混合,25℃保温46h,抽滤、洗涤、烘干,加入1L去离子水,超声搅拌24h,加入4.8g质量浓度为50%的乙二胺基乙磺酸钠水溶液,超声搅拌18h,离心、洗涤、冻干,得到氨基化二硫化钼。
对比例1:以实施例3为对照组,直接在预处理基件表面涂覆防护涂料,其他工序正常。
对比例2:以实施例3为对照组,用胍基化中间制剂替换含氟胍基化氨基酸衍生缓蚀剂,其他工序正常。
对比例3:以实施例3为对照组,没有制备含氟胍基化氨基酸衍生缓蚀剂,其他工序正常。
对比例4:以实施例3为对照组,没有制备氨基化二硫化钼,其他工序正常。
实施例与对比例中防护涂料形成的厚度为50μm。
所用原料来源:
A356铝合金:以质量百分数计,其化学成分为:硅6.85%、镁0.424%、铁0.11%、锰0.001%、锌0.016%、钛0.12%、镍0.005%、锶0.018%,余量为铝;六水合硝酸锌Z111703、尿素U111897、二甲基咪唑D139451、L-半胱氨酸C108237、S-甲基异脲半硫酸盐M108041、甲基丙烯酸十三氟辛酯T122282、二甲基苯基膦硼烷D154516、异佛尔酮二异氰酸酯I109582、羟基封端聚二甲基硅氧烷P304442、聚乙二醇P103737、二月桂酸二丁基锡D100274、乙二胺E112132、二硫化钼M104967、正丁基锂B107553、乙二胺基乙磺酸钠S303502;甲醇、丙酮、NaOH、盐酸、正己烷,分析纯:国药集团试剂。
性能测试:
疏水性:用接触角测量仪测试,用3μL去离子水水滴测试;耐磨性:在100g重量的压力下,在2000目砂纸上摩擦20次摩擦循环,每往水平和垂直方向各摩擦1cm视为一个循环,测试水接触角;抗菌性:以金黄色葡萄球菌为测试菌种,平板法测试;附着力测试:按百格法测试:以1mm间距均匀切割10条平行线,再与原切割线成90°角作相同数量的切割线,形成网格图形,用超过网格20mm的胶带在网格区上方压平,在5min内以平稳速度撕下胶带;评级标准:0级-切口边缘光滑且无剥落;1级-切口处有剥落且划格区实际破损低于5%;2级-划格区实际破损在5%-15%之间;3级-划格区实际破损在15%-35%之间;4级-划格区实际破损在35%-65%之间;5级-划格区实际破损区域大于65%;耐盐雾性能:参考GB/T1771-2007,盐雾箱内工作温度为36℃,pH为6.9,氯化钠浓度为59g/L;所得结果如表1所示;
表1
本发明提供一种高耐磨铝合金外壳及其制备工艺,制备了一种高强度、耐腐蚀、抗菌的高耐磨铝合金外壳。
将实施例3与对比例1进行对比,没有制备水滑石层、有机金属骨架ZIF-8膜层,大幅影响防护涂料的附着力,从而影响外壳的抗腐蚀性。
将实施例3与对比例2进行对比,本发明中本着绿色环保的理念,以天然氨基酸L-半胱氨酸为原料,制备多功能氨基酸衍生缓蚀剂作为插层剂与功能组分加入有机骨架膜层内,在铝合金表面构建高耐蚀、抗菌、疏水膜层的防护;先利用既有巯基又有氨基的L-半胱氨酸与S-甲基异脲半硫酸盐为原料,制备得到含有巯基的胍基化中间制剂,然后利用巯基-烯点击反应,与甲基丙烯酸全氟辛酯合成了含氟胍基化氨基酸衍生缓蚀剂,将其引入铝合金表面,赋予铝合金优异的抗菌性与耐腐蚀性、耐水性。
将实施例3与对比例3、对比例4进行对比,为了赋予铝合金表面优秀的耐磨性,制备含氟有机硅改性聚氨酯作为防护涂料,用羟基封端聚二甲基硅氧烷、聚乙二醇、异佛尔酮二异氰酸酯为原料,二月桂酸二丁基锡为催化剂制备聚氨酯预聚体,然后以含氟胍基化氨基酸衍生缓蚀剂为扩链剂,氨基化二硫化钼为封端剂,乙二胺为中和剂制备含氟有机硅改性聚氨酯,将其涂覆在改性基件表面,大幅提高铝合金表面的耐水性、耐磨性与抗菌性,从而延长铝合金表面的使用寿命。
综上所述,本发明制备了一种高耐磨铝合金外壳,具有良好的应用前景。
以上所述仅为本发明的实施例,并非因此限制本发明的专利范围,凡是在本发明的发明构思下,利用本发明说明书所做的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本发明的专利保护范围内。
Claims (6)
1.一种高耐磨铝合金外壳的制备工艺,其特征在于,包括以下步骤:
S1:取A356铝合金为原料,液态模锻成型,得到基件;
S2:对基件进行固溶处理,依次进行磨砂、抛光、碱洗、酸洗、水洗、干燥,得到预处理基件;
S3:将预处理基件放入一次浸渍液中,一次浸渍处理,得到表面预制水滑石基件;
S4:将表面预制水滑石基件放入二次浸渍液中,二次浸渍处理,得到表面生长有机骨架膜层的基件;
S5:将表面生长有机骨架膜层的基件放入含有含氟胍基化氨基酸衍生缓蚀剂的丙酮溶液中,真空浸渍处理,得到改性基件;
S6:用含氟有机硅改性聚氨酯作为防护涂料,将防护涂料涂覆到改性基件上,固化,得到一种高耐磨铝合金外壳;
一次浸渍处理的工作条件为:在75-80℃保温22-24h;一次浸渍液为:以去离子水为溶剂,其中有62.5g/L六水合硝酸锌、30g/L尿素;
二次浸渍处理的工作条件为:在138-142℃保温22-24h;二次浸渍液为:以甲醇为溶剂,其中有82g/L二甲基咪唑;
含氟胍基化氨基酸衍生缓蚀剂的制备包括以下步骤:
(1)将L-半胱氨酸、NaOH溶液混合,加入S-甲基异硫脲半硫酸盐、NaOH溶液的混合液,调节溶液pH为10-10.2,在2-5℃搅拌至pH为中性,加入盐酸将溶液pH调节为3.3-3.5,过滤、洗涤,转移到去离子水中,用稀盐酸沉淀重结晶,洗涤、干燥,得到胍基化中间制剂;
(2)将胍基化中间制剂、甲基丙烯酸十三氟辛酯、丙酮混合,加入二甲基苯基膦硼烷,在48-52℃保温5-6h,得到含氟胍基化氨基酸衍生缓蚀剂;
含氟有机硅改性聚氨酯的制备包括以下步骤:
在氩气保护下,将异佛尔酮二异氰酸酯、丙酮、羟基封端聚二甲基硅氧烷、聚乙二醇混合,加入二月桂酸二丁基锡、丙酮的混合液,在65-75℃保温2-3h,加入含氟胍基化氨基酸衍生缓蚀剂,继续保温1h,将温度降至55-60℃,加入氨基化二硫化钼,继续保温1-2h,加入乙二胺与丙酮的混合液,出料,得到含氟有机硅改性聚氨酯。
2.根据权利要求1所述的一种高耐磨铝合金外壳的制备工艺,其特征在于,液态模锻成型的工作条件为:采用400t液态模锻机,模具预热温度为255-260℃,浇注温度为700-705℃,液锻压力为132MPa,保压时间为30s。
3.根据权利要求1所述的一种高耐磨铝合金外壳的制备工艺,其特征在于,固溶处理的工作条件为:在525-530℃保温30-40min,然后在200-205℃保温1-2h。
4.根据权利要求1所述的一种高耐磨铝合金外壳的制备工艺,其特征在于,以质量份数计,含氟有机硅改性聚氨酯的原料为:4-6份异佛尔酮二异氰酸酯、3-15份丙酮、1份羟基封端聚二甲基硅氧烷、1-4份聚乙二醇、0.1-0.3份二月桂酸二丁基锡、0.5-1份含氟胍基化氨基酸衍生缓蚀剂、0.8-1份氨基化二硫化钼、1-3份乙二胺。
5.根据权利要求1所述的一种高耐磨铝合金外壳的制备工艺,其特征在于,氨基化二硫化钼的制备包括以下步骤:将二硫化钼、正丁基锂正己烷溶液混合,18-25℃保温46-48h,抽滤、洗涤、烘干,加入去离子水,超声搅拌22-24h,加入乙二胺基乙磺酸钠水溶液,超声搅拌16-18h,离心、洗涤、冻干,得到氨基化二硫化钼。
6.一种高耐磨铝合金外壳,其特征在于,由权利要求1-5中任一项制备工艺制备得到。
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