Hauvsiab -kub qhov cub, tiv thaiv gases tiv thaiv oxidation thiab pliaj tshwm sim, yog li ua kom ntseeg tau qhov zoo ntawm lub workpiece.
Piv txwv li, hlau hmoov yog yooj yim oxidized nyob rau hauv cov huab cua, thaum ceramics xav tau ib tug inert ib puag ncig los tsim muaju. Cov roj tiv thaiv ua haujlwm zoo li "kev tiv thaiv kev tiv thaiv," tsim cov xwm txheej zoo rau cov khoom ua haujlwm ntawm qhov kub thiab txias.
Cov cua sov cua sov siv cov tshuab tswj hwm roj siab, txhawb nqa ntau- roj hloov pauv thiab hloov pauv qhov tseeb, ua rau lawv hloov mus rau cov kev xav tau nyuaj. Tom ntej no, peb yuav txheeb xyuas cov yam ntxwv ntawm hydrogen thiab argon los pab koj nrhiav cov kev daws teeb meem zoo tshaj plaws.
Hydrogen (H₂): Kev txo qis, yuav tsum tau ua tib zoo tuav
Hydrogen yog qhov ua tau zoo txo cov roj uas tuaj yeem tshem tawm cov oxides ntawm qhov chaw ua haujlwm, ua rau nws tsim nyog rau cov txheej txheem uas yuav tsum tau txo qis.
Nws cov thermal conductivity siab tso cai rau cov cua kub sib txawv. Nws lub ntsiab tsis zoo yog nws cov nplaim taws heev, yuav tsum muaj kev tswj hwm kev nyab xeeb.
Qhov zoo
Muaj peev xwm txo qis: Hauv paus tiv thaiv cov hlau oxidation, ua tau zoo hauv cov hmoov metallurgy (xws li, ib feem sintering) thiab kev kho cua sov hlau (xws li, txheej txheem annealing), tiv thaiv workpieces los ntawm oxygen corrosion.
Txhim kho cov khoom siv: Txhim kho qhov chaw tiav thiab lub zog txhua yam hauv kev ua ntawm qee yam alloys, yog li muab cov khoom tiav zoo tshaj plaws.
Tus nqi qis: Piv rau cov roj av siab xws li argon, hydrogen muaj tus nqi qis dua.
Qhov tsis zoo
Kev pheej hmoo ntawm kev nyab xeeb: Cov nplaim hluav taws xob ntawm hydrogen yuav tsum muaj kev nyab xeeb tag nrho, suav nrog cov ntsuas dej xau thiab tsis siv neeg kaw -off li qub.
Cov khoom siv nruj me ntsis: Lub tshuab hluav taws xob sib khi thiab cov roj hluav taws xob yuav tsum ruaj khov thiab txhim khu kev qha. Leaks tuaj yeem tsis tsuas cuam tshuam cov txheej txheem tsim khoom tab sis kuj ua rau muaj kev nyab xeeb.
Argon (Ar): Qhov kev xaiv zoo tshaj plaws rau siab -kawg inert gases
Argon yog cov roj inert ruaj khov tshaj plaws, tsis tshua muaj tshwm sim, thiab tsim nyog rau cov txheej txheem uas xav tau siab heev - ib puag ncig purity. Txawm li cas los xij, vim nws tus nqi siab dua, nws txwv rau siab - kawg daim ntawv thov.
Qhov zoo:
Ultra- siab inertness: Zoo tagnrho rau cov ntaub ntawv rhiab rau oxygen los yog nitrogen, xws li titanium alloys thiab semiconductor cov ntaub ntawv.
Excellent stability: Maintains stability at ultra-high temperatures (>1600 degree), ua tau raws li cov txheej txheem nruj me ntsis hauv aerospace thiab siab -kev tsim khoom kawg.
Ultra-kev huv huv siab: Lub hauv paus muaj siab purity ntawm argon txo qis impurity paug ntawm lub workpiece. Qhov tsis zoo:
Tus nqi siab: Cov nqi yuav khoom thiab kev cia khoom yuav tsum siab dua li cov nitrogen thiab hydrogen.
Tsawg thermal conductivity: Piv nrog hydrogen, argon muaj qis dua kev hloov hluav taws xob, uas tuaj yeem cuam tshuam rau qhov kub thiab txias hauv qhov cub.
Kev siv thaj chaw:
Cov ntaub ntawv tshiab tshawb fawb thiab kev tsim kho: Cov txheej txheem npaj rau graphene, nanomaterials, lossis siab -kub superconductors.
Kev lag luam semiconductor: Cov txheej txheem tseem ceeb xws li silicon wafer annealing lossis siv lead ua loj hlob.
High-kawg hlau ua: Kev kho cua sov ntawm siab- cov hlau ua tau zoo (xws li titanium alloys thiab nickel-raws li alloys).