Q1: Vim li cas thiaj li yog alloy steel pipes tseem ceeb rau nuclear fais fab cog cov ntawv thov?
A1:Alloy Steel Kave hauv nuclear nroj tsuag yuav tsum tau tiv thaiv huab nrog hluav taws xob siab, qhov kub ntxhov, thiab mob siab. Cov qhab nia tshwj xeeb zoo li sa -335 P91 muab cov creep tsis txaus siab ntawm kev ua haujlwm kub txog 600 degree. Lawv cov ntsiab lus cobalt tsawg me me hauv cov khoom siv hluav taws xob, txhim kho kev nyab xeeb. Cov kav dej tswj kev ua kom ncaj ncees hauv kev ntseeg siab nyob rau hauv neuton flux, tiv thaiv kev puag. Nruj cov kev ntsuas cov kev tswj xyuas kom ua tau raws li kev xav ua ASME Nuclear code. Lawv txoj kev ntseeg tau yog qhov tseem ceeb rau reashor coolant tshuab thiab chav tsim hluav taws xob qhov twg tsis tuaj yeem muaj kev puas tsuaj loj tuaj.
Q2: Cov ntaub ntawv siv hlau hlau alloy tau ua li cas hauv Cryogenic daim ntawv thov zoo li LNG Terminals?
A2:Cov hlau uas muaj npe-rho tawm (piv txwv li, 9% ni steel) khaws cia ntawm qhov kub thiab txias, ua rau lawv zoo tagnrho rau kev pab lng. Lawv lub ntsej muag-nruab nrab ntawm cubic Crystal qauv tiv thaiv brittle fracture thaum lub thermal mergal. Cov kev vuam tshwj xeeb ua kom muaj qhov kub qis hauv cov yeeb nkab sib xyaws. Cov kav dej no tiv taws cua sov poob siab thaum lub sijhawm nrawm los ntawm ambient rau cryogenic kub. Lawv cov kev ua pov thawj tau ua rau lawv cov khoom siv ntawm kev xaiv rau LNG cia Tank Piping thiab hloov system thoob ntiaj teb.
Q3: Dab tsi ua rau qee cov roj av alloy hlau tsim nyog rau Sour Gas Pab?
A3:Sour kev ua hauj lwm zoo li l 80-13}}}}}} bacnorate cov qib thiab hardness hauv qab 22 hrc kom tiv thaiv sulfide kev ntxhov siab tawg. Lawv cov ntaub ntawv Chromium cov ntsiab lus ib qho yeeb yaj kiab tiv thaiv tawm tsam H2S Corrosion. Cov txheej txheem tshwj xeeb quenching thiab tempering kev ua kom zoo microstructure rau cov chaw pw. Cov kav dej no tau dhau los ntawm kev sim nruj heev hauv simulated downhole tej yam kev mob ib leeg rau NACE TM0177 tus qauv. Lawv txoj kev ua tau zoo tau ua kom muaj kev txhim kho kom muaj kev nyuaj ua kom muaj roj ntau dua li ntawm H2S cov kev ua tau zoo tshaj 20%.
Q4: Npaum li cas yog Alloy Steel kav hlau tau hloov rau kev siv hauv dej hiav txwv desalination nroj tsuag?
A4: Super duplex stainless steels (e.g., UNS S32750) combine high strength with exceptional chloride resistance for desalination service. Their 25% Cr, 7% Ni, and 4% Mo composition withstands seawater's corrosive effects at elevated temperatures. Electropolished interior surfaces minimize scaling and biofilm formation. These pipes demonstrate pitting resistance equivalent numbers (PREN) >40, ensuring kaum daus las ntawm kev pabcuam hauv cov khoom siv suab-salinity siab. Lawv cov kev siv tau qhib kev ua haujlwm ntawm kev thim osmosis thiab thermal desalination tshuab thoob ntiaj teb.
Q5: Cov kav dej ua tshwj xeeb yog siv hauv aerospace hydraulic tshuab?
A5:Aerospace-qib alloy kav dej siv nag lossis zes-hardened hlau zoo li {2}} pH rau qhov tshwj xeeb lub zog-rau-luj piv. Lawv cov ultra-huv cov hlau sib xyaw ua ke txo cov kev pheej hmoo tsis muaj kev phom sij. Precision-kos Seamless kev tsim kho kom muaj kev ua kom muaj txiaj ntsig ntawm {9}} psi ua haujlwm pressures. Cov kev kho tshwj xeeb ntawm cov kev kho tshwj xeeb cov rog ua rau kev co rau kev co-intension aircraft ib puag ncig. Cov kav dej no tau dhau mus kuaj nruj nrog kev nias siab tawg thiab kev txheeb xyuas metallurgical. Lawv txoj kev ntseeg tau tseem ceeb rau kev davhlau tswj lub tshuab thiab tsaws iav hydraulics qhov twg tsis tuaj yeem hais txog kev nyab xeeb dav hlau.
