CN114959485A - 压力容器法兰及其生产工艺 - Google Patents
压力容器法兰及其生产工艺 Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 20
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000008139 complexing agent Substances 0.000 claims abstract description 12
- 239000011734 sodium Substances 0.000 claims abstract description 12
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 12
- -1 lanthanide rare earth Chemical class 0.000 claims abstract description 11
- 229910052747 lanthanoid Inorganic materials 0.000 claims abstract description 11
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 11
- DOOTYTYQINUNNV-UHFFFAOYSA-N Triethyl citrate Chemical compound CCOC(=O)CC(O)(C(=O)OCC)CC(=O)OCC DOOTYTYQINUNNV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims abstract description 10
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims abstract description 10
- VMYFZRTXGLUXMZ-UHFFFAOYSA-N triethyl citrate Natural products CCOC(=O)C(O)(C(=O)OCC)C(=O)OCC VMYFZRTXGLUXMZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 235000013769 triethyl citrate Nutrition 0.000 claims abstract description 10
- 239000001069 triethyl citrate Substances 0.000 claims abstract description 10
- 239000003112 inhibitor Substances 0.000 claims abstract description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 239000010941 cobalt Substances 0.000 claims abstract description 6
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052802 copper Inorganic materials 0.000 claims abstract description 6
- 239000010949 copper Substances 0.000 claims abstract description 6
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 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 claims abstract description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 6
- 229910052758 niobium Inorganic materials 0.000 claims abstract description 6
- 239000010955 niobium Substances 0.000 claims abstract description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 6
- 239000011574 phosphorus Substances 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 239000011593 sulfur Substances 0.000 claims abstract description 6
- 229910052715 tantalum Inorganic materials 0.000 claims abstract description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010936 titanium Substances 0.000 claims abstract description 6
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 6
- 238000005245 sintering Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
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- 238000001035 drying Methods 0.000 claims description 6
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- 229910052684 Cerium Inorganic materials 0.000 claims description 5
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 5
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- 229910052765 Lutetium Inorganic materials 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 5
- 229910052772 Samarium Inorganic materials 0.000 claims description 5
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 5
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 claims description 5
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims description 5
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 claims description 5
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 5
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 5
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 4
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 239000013064 chemical raw material Substances 0.000 claims description 3
- 238000011068 loading method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 230000001590 oxidative effect Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 125000005619 boric acid group Chemical group 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 230000003750 conditioning effect Effects 0.000 claims 2
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 239000002253 acid Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 9
- 238000010998 test method Methods 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 102000020897 Formins Human genes 0.000 description 1
- 108091022623 Formins Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000861 blow drying Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
- B22F5/106—Tube or ring forms
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/34—Anodisation of metals or alloys not provided for in groups C25D11/04 - C25D11/32
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
本发明涉及法兰生产技术领域,尤其涉及压力容器法兰及其生产工艺,法兰的生产包括以下质量份的原料:化学原料100‑130份和助剂15‑30份,化学原料包括以下质量百分比的组分:碳0.13‑0.2%,硅0.2‑0.6%,锰1.2‑1.6%,磷0.01‑0.03%,硫0.01‑0.03%,铬15.3‑17.6%,铌0.03‑0.06%,铜0.15‑0.25%,镍0.13‑0.27%,钼2‑3%,铝0.2‑0.3%,钛0.03‑0.05%,钴2‑5%,钽0.02‑0.06%,镧系稀土3‑5%,余量为铁,助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液,改性液由偏铝酸钠溶液、调节剂、络合剂和抑弧剂配制而成。相比于现有技术,本发明不仅可以提高法兰的表面耐磨性,而且还可以增强其耐酸腐蚀的能力。
Description
技术领域
本发明涉及法兰生产技术领域,尤其涉及压力容器法兰及其生产工艺。
背景技术
压力容器是石油化工、电力、轻工等工业领域中使用最广泛的设备之一,由于工艺要求和设备内件安装、检修的需要,制造、运输的方便,压力容器常需要采用可拆卸的结构。法兰连接便是一个组合件,由一对法兰,数个螺栓、螺母和一个垫片组成。常见的管壳式热交换器、反应釜、塔器、过滤器等通常都设置有容器法兰。
由于压力容器内部介质的存在,意味着法兰需要具备一定的耐腐蚀效果,以避免被容器中的酸性溶液腐蚀,而且,为了减少法兰受外力磨损而使其寿命剪短,其表面耐磨性能也需要有所保障。因此,我们提出了压力容器法兰及其生产工艺用于解决上述问题。
发明内容
本发明的目的是为了解决现有技术中存在的缺点,而提出的压力容器法兰及其生产工艺。
压力容器法兰,包括以下质量份的原料:
化学原料100-130份和助剂15-30份;
所述化学原料包括以下质量百分比的组分:
碳0.13-0.2%,硅0.2-0.6%,锰1.2-1.6%,磷0.01-0.03%,硫0.01-0.03%,铬15.3-17.6%,铌0.03-0.06%,铜0.15-0.25%,镍0.13-0.27%,钼2-3%,铝0.2-0.3%,钛0.03-0.05%,钴2-5%,钽0.02-0.06%,镧系稀土3-5%,余量为铁;
所述助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液,改性液由偏铝酸钠溶液、调节剂、络合剂和抑弧剂配制而成。
优选的,所述助剂的质量为化学原料的16-23%。
优选的,所述镧系稀土包括以下质量百分比的组分:
镧20-24%,铈20-25%,钐14-16%,钕14-16%,钆2-4%,镨16-18%,镝5-6%,镥1-3%,以上各组分之和为100%。
优选的,所述所述镧系稀土包括以下质量百分比的组分:镧23%,铈20%,钐15%,钕15,钆3%,镨17%,镝5.5%,镥1.5%。
优选的,所述改性液的具体配制方法为:将调节剂、络合剂和抑弧剂依次加入到偏铝酸钠溶液中,搅拌混匀后,静置,即得改性液。
优选的,所述调节剂为NaOH、络合剂为硼酸,抑弧剂为三乙醇胺,且偏铝酸钠溶液的浓度为80-86%。
优选的,所述偏铝酸钠溶液、调节剂、络合剂和抑弧剂的质量比为23:3:2:2。
压力容器法兰的生产工艺,包括以下步骤:
S1、称取各个化学原料的单质,并将其与柠檬酸三乙酯和聚丙烯酸钠混合,于50-60℃下,以30Hz-40Hz的频率超声振荡45-60分钟后,取出,在10-13cm2/min的氮气气流下干燥20-30分钟后,装入法兰模具中,压制成坯,得法兰坯;
S2、将法兰坯放在烧结炉中,以4-6℃/min速率升温至435±15℃条件下烧结1-2小时,再以6-8℃/min速率升温至735±15℃条件下烧结1-2小时,然后以10-12℃/min速率升温至920±10℃条件下烧结2-3小时,结束后,取出进行空气冷却;
S3、将空冷后的法兰坯在回火炉内以630±10℃的温度烧结1-2小时进行回火;
S4、将回火后的法兰坯送入蒸汽处理炉中,在炉中420-450℃的温度下通入蒸汽60-90分钟;
S5、将法兰坯送入100-120℃溶剂油中冷却1-2小时,取出后再进行空冷;
S6、将S5所得法兰坯浸没在改性液中,接通阳极电流10-12A/dm2,占空比设置为15%,频率250-275Hz,氧化30-45分钟,取出后,干燥,即得成品法兰。
相比于现有技术,本发明的有益效果是:
在本发明中,通过将偏铝酸钠溶液配合调节剂、络合剂以及抑弧剂来制备获得改性液,并将法兰坯浸没在其中进行氧化处理,不仅可以有效地提高法兰的表面耐磨性能,而且还可以增强其耐酸腐蚀的能力。
具体实施方式
下面结合具体实施例对本发明作进一步解说。
实施例1:
压力容器法兰,包括以下质量份的原料:化学原料100份和助剂16份;
化学原料包括以下质量百分比的组分:
碳0.13%,硅0.2%,锰1.2%,磷0.01%,硫0.01%,铬15.3%,铌0.03%,铜0.15%,镍0.13%,钼2%,铝0.2%,钛0.03%,钴2%,钽0.02%,镧系稀土3%,余量为铁;
助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液。
实施例2:
压力容器法兰,包括以下质量份的原料:化学原料100份和助剂16份;
化学原料包括以下质量百分比的组分:
碳0.165%,硅0.4%,锰1.4%,磷0.02%,硫0.02%,铬16.45%,铌0.045%,铜0.2%,镍0.2%,钼2.5%,铝0.25%,钛0.04%,钴2-5%,钽0.04%,镧系稀土4%,余量为铁;
助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液。
实施例3:
压力容器法兰,包括以下质量份的原料:化学原料100份和助剂16份;
化学原料包括以下质量百分比的组分:
碳0.2%,硅0.6%,锰1.6%,磷0.03%,硫0.03%,铬17.6%,铌0.06%,铜0.25%,镍0.27%,钼3%,铝0.3%,钛0.05%,钴5%,钽0.06%,镧系稀土5%,余量为铁;
助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液。
在上述实施例1-3中:
①改性液是将调节剂NaOH、络合剂硼酸和抑弧剂三乙醇胺依次加入到浓度为80%的偏铝酸钠溶液中,搅拌混匀后,静置,即得改性液,偏铝酸钠溶液、调节剂、络合剂和抑弧剂的质量比为23:3:2:2。
②镧系稀土包括以下质量百分比的组分:镧23%,铈20%,钐15%,钕15,钆3%,镨17%,镝5.5%,镥1.5%,以上各组分之和为100%。
上述实施例1-3中制备压力容器法兰的生产工艺如下:
S1、称取各个化学原料的单质,并将其与柠檬酸三乙酯和聚丙烯酸钠混合,于55℃下,以30Hz的频率超声振荡45分钟后,取出,在10cm2/min的氮气气流下干燥20分钟后,装入法兰模具中,压制成坯,得法兰坯;
S2、将法兰坯放在烧结炉中,以5℃/min速率升温至435℃条件下烧结1.5小时,再以7℃/min速率升温至735℃条件下烧结1.5小时,然后以11℃/min速率升温至920℃条件下烧结2.5小时,结束后,取出进行空气冷却;
S3、将空冷后的法兰坯在回火炉内以630℃的温度烧结1.5小时进行回火;
S4、将回火后的法兰坯送入蒸汽处理炉中,在炉中435℃的温度下通入蒸汽75分钟;
S5、将法兰坯送入110℃溶剂油中冷却1.5小时,取出后再进行空冷;
S6、将S5所得法兰坯浸没在改性液中,接通阳极电流10A/dm2,占空比设置为15%,频率250Hz,氧化30分钟,取出后,干燥,即得成品法兰。
试验一、对法兰耐磨性能的测定
对比例1:与实施例1相比,不同之处在于,助剂中不含改性液;
对比例2:与实施例2相比,不同之处在于,助剂中不含改性液;
对比例3:与实施例3相比,不同之处在于,助剂中不含改性液;
上述对比例1-3中,助剂中柠檬酸三乙酯和聚丙烯酸钠的质量比为3:1;
上述对比例1-3中制备法兰的生产工艺与实施例1-3的生产工艺一致。
试验方法:
将本发明中实施例1-3和对比例1-3中的法兰与市售法兰进行耐摩擦性能测试,高温摩擦实验在MMU-5G材料端面高温摩擦磨损试验机上进行;
本实验中采用销盘式滑动摩擦磨损试验方法,合金式样尺寸d 4mm×15mm的销试样,对磨盘为直径43mm的GCr15钢,摩擦实验在干摩擦条件下进行,试样法兰分别在100℃、200℃和300℃这3种不同的温度下磨损5min,载荷均为100N。每种试样在正式摩擦之前,先在800目砂纸上预磨5min,以提高试样磨损面与摩擦轮相吻合程度,试样法兰磨损前用丙酮超声波清洗,吹干后用精度为0.01mg的分析天平测量,采用摩擦质量损失描述待测材料的耐磨性能;
试验结果:
由上表试验结果可知:
在每个试验组中,实施例中法兰的质量损失是最小的,其次是市售法兰的摩擦质量损失,相较之下,摩擦质量损失最大的是对比例中的法兰,并且,随着温度的升高,实施例中法兰的摩擦质量损失增加的幅度也是最小的,由此可见,通过添加改性液可以有效地改善法兰的表面耐磨性能。
试验二、对法兰耐腐蚀性能的测定
试验方法:
将本发明中实施例1-3和对比例1-3中的法兰与市售法兰分别浸泡在25℃ 浓度为3.5%的氯化钠溶液中,测试其腐蚀电位;
试验结果:
由上表试验结果可知:
在每个试验组中,与市售法兰相比,腐蚀电位的平均值由高到低依次是实施例>市售法兰>对比例,由此可见,实施例中的法兰具有良好的耐酸腐蚀性能,即通过添加改性液也可以有效地改善法兰的耐酸腐蚀性能。
以上所述,仅为本发明较佳的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其发明构思加以等同替换或改变,都应涵盖在本发明的保护范围之内。
Claims (8)
1.压力容器法兰,其特征在于,包括以下质量份的原料:
化学原料100-130份和助剂15-30份;
所述化学原料包括以下质量百分比的组分:
碳0.13-0.2%,硅0.2-0.6%,锰1.2-1.6%,磷0.01-0.03%,硫0.01-0.03%,铬15.3-17.6%,铌0.03-0.06%,铜0.15-0.25%,镍0.13-0.27%,钼2-3%,铝0.2-0.3%,钛0.03-0.05%,钴2-5%,钽0.02-0.06%,镧系稀土3-5%,余量为铁;
所述助剂包括质量比为3:1:16的柠檬酸三乙酯、聚丙烯酸钠和改性液,改性液由偏铝酸钠溶液、调节剂、络合剂和抑弧剂配制而成。
2.根据权利要求1所述的压力容器法兰,其特征在于,所述助剂的质量为化学原料的16-23%。
3.根据权利要求1所述的压力容器法兰,其特征在于,所述镧系稀土包括以下质量百分比的组分:
镧20-24%,铈20-25%,钐14-16%,钕14-16%,钆2-4%,镨16-18%,镝5-6%,镥1-3%,以上各组分之和为100%。
4.根据权利要求3所述的压力容器法兰,其特征在于,所述所述镧系稀土包括以下质量百分比的组分:镧23%,铈20%,钐15%,钕15,钆3%,镨17%,镝5.5%,镥1.5%。
5.根据权利要求1所述的压力容器法兰,其特征在于,所述改性液的具体配制方法为:将调节剂、络合剂和抑弧剂依次加入到偏铝酸钠溶液中,搅拌混匀后,静置,即得改性液。
6.根据权利要求5所述的压力容器法兰,其特征在于,所述调节剂为NaOH、络合剂为硼酸,抑弧剂为三乙醇胺,且偏铝酸钠溶液的浓度为80-86%。
7.根据权利要求6所述的压力容器法兰,其特征在于,所述偏铝酸钠溶液、调节剂、络合剂和抑弧剂的质量比为23:3:2:2。
8.根据权利要求1-7任一所述的压力容器法兰的生产工艺,其特征在于,包括以下步骤:
S1、称取各个化学原料的单质,并将其与柠檬酸三乙酯和聚丙烯酸钠混合,于50-60℃下,以30Hz-40Hz的频率超声振荡45-60分钟后,取出,在10-13cm2/min的氮气气流下干燥20-30分钟后,装入法兰模具中,压制成坯,得法兰坯;
S2、将法兰坯放在烧结炉中,以4-6℃/min速率升温至435±15℃条件下烧结1-2小时,再以6-8℃/min速率升温至735±15℃条件下烧结1-2小时,然后以10-12℃/min速率升温至920±10℃条件下烧结2-3小时,结束后,取出进行空气冷却;
S3、将空冷后的法兰坯在回火炉内以630±10℃的温度烧结1-2小时进行回火;
S4、将回火后的法兰坯送入蒸汽处理炉中,在炉中420-450℃的温度下通入蒸汽60-90分钟;
S5、将法兰坯送入100-120℃溶剂油中冷却1-2小时,取出后再进行空冷;
S6、将S5所得法兰坯浸没在改性液中,接通阳极电流10-12A/dm2,占空比设置为15%,频率250-275Hz,氧化30-45分钟,取出后,干燥,即得成品法兰。
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