1. Dab tsi yog qhov kev siv tseem ceeb ntawm Incoloy 825 hauv kev lag luam sulfuric acid thiab tshuaj lom neeg?
Teb:
Incoloy 825 yog npib tsib xee- hlau-chromium alloy nrog ntxiv molybdenum thiab tooj liab rau superior corrosion kuj. Nws cov ntawv thov tseem ceeb suav nrog:
Cov khoom siv raug rau cov kua qaub uas muaj zog, xws li sulfuric acid tso tsheb hlau luam, cov kav dej, thiab cov khoom siv hluav taws xob.
Cov khoom siv tshuaj ua rau nitric, phosphoric, thiab acetic acids
Kev siv dej hiav txwv thiab dej hiav txwv uas muaj kev ntxhov siab corrosion tuaj yeem tshwm sim
Nws raug xaiv rau ib puag ncig uas Inconel 600/718 tuaj yeem tiv taus qee yam acids lossis chlorides.
2. Incoloy 825 piv rau Inconel 600/718 li cas hauv kev tiv thaiv corrosion?
Teb:
Incoloy 825: Kev tiv thaiv zoo heev los txo cov kua qaub, sulfuric acid, phosphoric acid, thiab chloride-induced stress corrosion cracking.
Inconel 600: Zoo dav dav corrosion thiab oxidation tsis kam tab sis tsis tshua muaj zog kom txo cov acids thiab qee cov tshuaj chloride.
Inconel 718: Optimized rau siab - kub lub zog es tsis muaj tshuaj tiv thaiv corrosion; tsawg haum rau cov concentrated acid ib puag ncig.
Yog li, Incoloy 825 yog qhov zoo dua rau kev ua cov sulfuric acid, thaum Inconel alloys zoo dua rau siab - kub lossis kev siv tshuab.
3. Dab tsi yog cov khoom tseem ceeb ntawm Incoloy 825 kub- dov daim hlau?
Teb:
Tensile zog: ~ 585-690 MPa (85-100 ksi)
Yield zog: ~ 240-310 MPa (35-45 ksi)
Ntev: ~ 35-40%
Hardness: ~ 170-200 HB
Nws tuav cov khoom zoo txhua yam thoob plaws qhov kub thiab txias (-196℃txog ~ 500 degree), ua rau nws haum rau ob qho tib si cryogenic thiab kub-kub tshuaj.
4. Incoloy 825 raws li cov qauv thiab specifications li cas?
Teb:
ASTM B444 / B575: Nickel alloy daim hlau thiab kub -cov khoom dov
UNS N08825: Unified Numbering System designation
W.Nr 2.4858: German khoom tsim
AMS 5666 / ASTM B444: Aerospace / kev lag luam zoo tswj thaum xav tau
Kev ua raws cai ua kom ntseeg tau tias muaj kev tiv thaiv corrosion, cov khoom siv kho tshuab, thiab cov tshuaj lom neeg muaj pes tsawg leeg.
5. Dab tsi yog qhov fabrication thiab vuam kev txiav txim siab rau Incoloy 825 piv rau Inconel 600/718?
Teb:
Vuam: Zoo heev weldability nrog Incoloy 825 muab tub lim los yog siv tau nickel{1}}raws li cov muab tub lim. Preheating feem ntau tsis tas yuav tsum tau.
Machining: Yooj yim dua Inconel 718; nruab nrab pub thiab ceev pom zoo kom tsis txhob ua hauj lwm hardening.
Kev tsim: tuaj yeem ua haujlwm kub lossis txias; khaws cov corrosion kuj tom qab tsim.
Kev kho cua sov: Tsis muaj nag lossis daus hardening; kev ntxhov siab-relief annealing tuaj yeem siv yog tias xav tau.
Piv rau Inconel 718, Incoloy 825 yog qhov yooj yim dua rau kev ua haujlwm nrog rau kev siv tshuaj lom neeg, thaum Inconel 718 nyiam rau siab - lub zog, siab - cov ntawv thov kub.
