HastelloyB|-2|-3|C|-4|-22|-276|X alloy yog dab tsi?|Nta|Daim Ntawv Thov
Hastelloy yog npib tsib xee superalloy nrog corrosion kuj heev. Nws muaj nickel, chromium thiab molybdenum ua nws cov ntsiab lus tseem ceeb. Ntxiv nrog rau kev tiv thaiv corrosion, Hastelloy hlau kuj tseem tiv taus qhov kub thiab txias. Kev siv cov ntaub ntawv Hastelloy yog nce hauv kev lag luam tshuaj, petrochemical, tshuaj thiab roj thiab roj. Hauv tsab xov xwm no, peb yuav tham txog cov khoom, kev siv, thiab qib ntawm Hastelloy.
Hastelloy yog dab tsi?
Hastelloy yog ib qho muaj zog heev thiab corrosion-resistant npib tsib xee alloy uas tau siv dav hauv cov tshuaj corrosive thiab acids. Qhov sib ntxiv ntawm chromium thiab molybdenum txhim kho nws cov kev tiv thaiv kom kub thiab corrosion. Hastelloy hlau yog ductile, ua kom yooj yim rau cov duab.
Hastelloy yog tsim los ntawm kev sib txuas cov khoom qub thaum lawv cov kua dej kub. Feem ntau, Hastelloy cov ntaub ntawv muaj 1% mus rau 25% chromium, 5% mus rau 30% molybdenum, 0% mus rau 30% hlau, thiab qhov sib npaug yog npib tsib xee. Qee zaum, lwm cov ntsiab lus ntxiv, xws li carbon, tungsten, vanadium thiab titanium.
Thaum cov hlau sib xyaw ua ke, smelted thiab sib xyaw ua ke, lawv raug cam khwb cia los tsim cov khoom tsim nyog.
Cov khoom ntawm Hastelloy
Thaum cov khoom ntawm Hastelloy sib txawv ntawm qib mus rau qib, lawv feem ntau muaj cov khoom nram qab no:
Zoo heev corrosion kuj
Qhov ceev: 8.89 g / cm3
Melting point range: 1323-1371 0 degree
Tensile zog: 690-783 MPa
zoo weldability
High nyob rau hauv antioxidants thiab acids
Hastelloy Hom thiab Qib
Muaj ntau qib ntawm Hastelloy raws li cov tshuaj muaj pes tsawg leeg ntawm Hastelloy cov khoom. Hom Hastelloy hlau qib muaj xws li:
B hom Hastelloy khoom
C hom Hastelloy khoom
Hastelloy Hom G
Hastelloy X, thiab
Hastelloy N
Hom B alloy
Hastelloy Hom B superalloy muaj cov feem ntau ntawm nickel thiab molybdenum. Hastelloy Qib B paub txog nws qhov kev tiv thaiv rau qhov kev txo qis ib puag ncig. Qee cov ntaub ntawv hom B Hastelloy yog:
B-2 Alloy (UNS N10665): B-2 Cov khoom siv Hastelloy muaj 65% nickel thiab 30% molybdenum. Nws kuj muaj me me ntawm carbon, hlau, silicon, chromium, cobalt, manganese thiab sulfur. Qib B alloys muaj corrosion kuj zoo heev rau hydrochloric acid tab sis tsis zoo corrosion kuj rau oxidizing cov neeg ua hauj.
B-3 Alloy (UNS N10675): Cov hlau no muaj kev tiv thaiv zoo heev rau pitting corrosion thiab zoo thermal stability piv rau B-2 Alloy. Cov tshuaj muaj pes tsawg leeg ntawm B-3 alloy yog 65% npib tsib xee thiab 30% molybdenum, nrog cov lej ntawm chromium, cobalt thiab manganese.
C hom alloy
Qib no ntawm Hastelloy muaj cov feem pua nickel, chromium, thiab molybdenum siab. Chromium ntxiv cov khoom kub thiab tiv thaiv kom txo tau qhov chaw. Hastelloy Qib C yog tsim rau ob qho tib si txias thiab kub ua haujlwm. Qib C Hastelloy hlau yog cov khoom siv Hastelloy tshaj plaws. Cov khoom siv C-hom Hastelloy yog:
C-4 Hastelloy (UNS N06455): C-4 Hastelloy muaj 60% npib tsib xee, 18% chromium, 16% molybdenum, 3% hlau, 2% cobalt, thiab cov seem silicon thiab carbon, sulfur, titanium , thiab lwm yam Ductility thiab corrosion kuj.
C-22 Hastelloy (UNS N06022): C-22 Hastelloy yog tsim los ntawm 58% npib tsib xee, 20% chromium, 13% molybdenum, 3.5% tungsten, 2.5% cobalt thiab lwm yam khoom. C-22 Hastelloy yog dav paub txog nws txoj kev weldability thiab yog cov khoom siv feem ntau siv hauv cov tshuaj tiv thaiv cov hlab ntsha thiab cov tshuab desulfurization.
Hastelloy C-276 (UNS N10276): Hastelloy qib no yog siv hauv kev lag luam petrochemical. Nws muaj 59% npib tsib xee, 16% molybdenum, 15% chromium, 4% tungsten thiab kab ntawm lwm cov ntsiab lus. Nws muaj kev tiv thaiv corrosion siab rau oxidants, pitting corrosion, kev nyuaj siab corrosion cracking thiab intergranular corrosion.
C-2000 Hastelloy: muaj cov khoom siv oxidation zoo tshaj plaws thiab siv rau hauv kev siv cov khoom siv tshuaj.
G hom alloy
Haum rau vuam siv TIG, SAW, SMAW, G-hom Hastelloy cov ntaub ntawv, uas muaj tungsten raws li ib qho ntawm cov hlau alloy. Lub ntsiab alloys ntawm pawg no yog:
Hastelloy G-3 (UNS N06985): Qhov kub kub no muaj cov nickel, chromium, tungsten, hlau, molybdenum thiab cobalt ua nws cov khoom xyaw tseem ceeb.
G-30 Hastelloy (UNS N06030): Nws yog tsim los ntawm 43% npib tsib xee, 30% chromium, 15% hlau, 5% cobalt, 4% tungsten, 1.5% manganese thiab cov lej ntawm lwm cov khoom.
X hom alloy
Hastelloy X alloy (UNS N06002): muaj kev tiv thaiv oxidation zoo dua, kub siab zog, thiab SCC tsis kam. Chemistry Hastelloy X muaj 44% npib tsib xee, 23% chromium, 20% hlau, 10% molybdenum, 1% manganese thiab silicon, nrog rau cov lej ntawm lwm cov khoom. Lawv tuaj yeem ua haujlwm txias thiab welded. Cov khoom siv Hastelloy no yog siv rau hauv cov khoom siv hluav taws xob thiab kev siv roj turbine.
Hastelloy N (UNS N10003)
Hastelloy N muaj 71% npib tsib xee, 16% molybdenum, 7% chromium, 5% hlau, 1% silicon thiab cov lej ntawm lwm cov khoom. Vim tias nws qhov kub siab oxidation tsis kam, Hastelloy N yog siv rau hauv kev lag luam xws li cov khoom siv tshuaj.
Lwm cov qib Hastelloy yog:
Hastelloy D-205
Hastelloy G50 (UNS N06950)
Hastelloy S (UNS N06635)
Hastelloy W (UNS N10004)
Hastelloy G-2 (UNS N06975)
Kev siv cov khoom siv Hastelloy
Hastelloy qhov zoo heev corrosion kuj ua rau nws zoo tagnrho rau ib qho chaw nruab nrab mus rau qhov hnyav heev. Hastelloy kav, exchangers, siab hlab ntsha thiab li qub yog heev muaj nyob rau hauv cov tshuaj thiab petrochemical industries. Cov hlau kuj tseem siv rau hauv cov hlab ntsha reactor hauv kev lag luam chemical thiab nuclear. Lwm cov kev lag luam uas siv Hastelloy suav nrog:
Geothermal
mining
hnub ci zog
biomass
dej hiav txwv
petrochemical
liquified natural gas
aerospace
Desalination
Pulp thiab lwm yam.
Hastelloy tiv taus siab rau cov kev pabcuam hauv qab no:
Cov kua qaub xws li acetic acid, hydrochloric acid, sulfuric acid, phosphoric acid, nitric acid, boric acid, carbolic acid, citric acid, uric acid, malic acid, salicylic acid, gallic acid, thiab lwm yam.
chlorides xws li txhuas chloride, ammonium chloride, amyl chloride, barium chloride, calcium chloride, ethyl chloride, zinc chloride, potassium chloride, titanium tetrachloride, sodium chloride, magnesium chloride, chloride tshuaj hlau, thiab lwm yam.
Nitrates, xws li ammonium nitrate, tooj liab nitrate, tooj liab nitrate, nickel nitrate, sodium nitrate, mercury nitrate, magnesium nitrate, potassium nitrate, hlau nitrate, thiab lwm yam.
Ammonium hydroxide, calcium hydroxide, magnesium hydroxide, sodium hydroxide, potassium hydroxide, ferric hydroxide thiab lwm yam hydroxides
Sulfates, xws li txhuas sulfate, ammonium sulfate, tooj liab sulfate, zinc sulfate, nickel sulfate, sodium sulfate, magnesium sulfate, sodium bisulfate, poov tshuaj sulfate, thiab ntau ntxiv.
