Izinzuzo zezesekeli ze-graphite nezinto zokushisa zikagesi zesithando somlilo

Izinzuzo zezesekeli ze-graphite nezinto zokushisa zikagesi zesithando somlilo

Ngokuthuthuka kwezinga lesithando somlilo sokushisa i-vacuum valve, ukwelashwa kokushisa kwe-vacuum kunezinzuzo eziyingqayizivele, futhi ukwelashwa kokushisa kwe-vacuum kuye kwathandwa abantu embonini ngenxa yochungechunge lwezinzuzo ezifana nokukhipha umoya, ukwehlisa, ukukhulula umoya-mpilo kanye ne-automation. Kodwa-ke, kuyaphawuleka ukuthi isithando somlilo se-vacuum sinezinga eliphezulu lezinto zokushisa zikagesi, ezifana ne-high-temperature deformation, i-fracture Volatilization isibe yinto ebalulekile evimbela ukuthuthukiswaisithando somlilo.
Ukuze kuxazululwe le nkinga, imboni yaphendukela ku-graphite.I-graphiteyenziwe ngezinye izinsimbi futhi inezinzuzo ezingenasici. Kuyaqondwa ukuthi i-graphite icishe idume ezinhlotsheni ezihlukene zokushisa ukushisa kwe-vacuum njengento yokushisa kagesi.
Khona-ke izinzuzo ze-graphite vacuum zokushisa ukushisa izakhi zokushisa zikagesi
1) Ukumelana nokushisa okuphezulu: indawo encibilikayo yegraphite ingu-3850 ± 50 ℃ futhi indawo yokubilisa ingu-4250 ℃. Ngisho noma kushiswa i-arc ye-ultra-high, ukulahlekelwa kwesisindo kuncane kakhulu futhi i-coefficient yokwandisa okushisayo incane kakhulu. Amandla e-graphite ayanda ngokwanda kwezinga lokushisa. Ngo-2000 ℃, amandla egraphite aphindwe kabili.
I-2) I-Conductivity kanye ne-thermal conductivity: i-conductivity ye-graphite iphindwe izikhathi ezingu-100 kunaleyo yamaminerali angeyona insimbi evamile. I-thermal conductivity idlula eyensimbi, insimbi, umthofu nezinye izinto zensimbi. I-conductivity eshisayo iyancipha ngokunyuka kwezinga lokushisa. Ngisho nalapho izinga lokushisa liphezulu kakhulu, i-graphite iba isivikelo. I-graphite ingakwazi ukuhambisa ugesi ngoba i-athomu ngayinye ye-carbon e-graphite yakha izibopho ezintathu kuphela ezihlangene nezinyeikhabhoniama-athomu, futhi i-athomu yekhabhoni ngayinye isagcina i-electron eyodwa yamahhala ukuze idlulise imali.
I-3) I-Lubricity: ukusebenza kokugcoba kwe-graphite kuncike kusayizi wesikali se-graphite. Uma isikali sikhulu, siba sincane i-coefficient yokungqubuzana, kanye nokusebenza kangcono kokugcotshwa. Ukuzinza kwamakhemikhali:i-graphiteinokuqina okuhle kwamakhemikhali ekamelweni lokushisa futhi ingamelana ne-asidi, i-alkali ne-organic solvent corrosion.
4) Ipulasitiki: i-graphite inokuqina okuhle futhi ingagaywa ibe amashidi amancane kakhulu. Ukumelana nokushaqeka okushisayo: lapho i-graphite isetshenziswa ekamelweni lokushisa, ingakwazi ukumelana noshintsho olukhulu lokushisa ngaphandle kokulimala. Lapho izinga lokushisa lishintsha ngokuzumayo, umthamo we-graphite ushintsha kancane futhi ukuqhekeka ngeke kwenzeke.
Lapho siklama futhi sicubungula isithando somlilo, kufanele sicabange ukuthi ukumelana kwesici sokushisa kagesi kushintsha kancane ngokushisa kanye nokumelana nokuzinza, ngakho-ke i-graphite yinto ekhethwayo.