Ukuze ugweme ukushiswa kokuthintana okusiliva, itheminali yokuxhumana emile ibe yisimo esigobile, ingxenye ephakathi nendawo ephumayo.Ngakho-ke i-arc ngeke ibe endaweni yokuxhumana yomlilo.Kuwuhlobo lwefomu lokuxhumana elingcono, futhi ukusetshenziswa kwalo kuya ngokuya kubanzi.Inqubo yokusebenza yokuxhumana kothintana naye ibeka phambili inani lezidingo zezinto.Ngoba ithusi line-conductivity enhle kagesi kanye ne-thermal conductivity.Ubulukhuni obanele.Iphuzu elincibilikayo eliphakeme, ukucubungula kalula.Ngakho-ke isetshenziswa kabanzi njengengxenye yokuxhumana ye-high voltage circuit breaker.Kodwa ngesandla sethusi i-oxidized kalula, i-oxidation yokumelana nokuxhumana.Ngakho kwamanye ama-circuit breakers, ithusi lalimboze ungqimba olusiliva ngaphandle kokuthintana okuyinhloko.

Isiliva ine-conductivity enhle, ifilimu ye-oxide i-conductive, ingathuthukisa ukusebenza kokuthintana kwethusi okwesiliva.Ngokusetshenziswa njalo kwe-circuit breaker, imiphumela yokushisa yokuxhumana ye-arc yesiliva yanda kakhulu, indawo yokuxhumana ingase ibe ukulahlekelwa okukhulu, ngakho-ke ukumelana nokushisa kokuxhumana kwesiliva, ukumelana nokumelana ne-arc, ukumelana nokuhuzuka nokubeka phambili izidingo eziphakeme.Indlela ye-powder metallurgy ivule indlela entsha yokuthuthukiswa kwezinto zokuxhumana.

I-powder metallurgy esikhundleni sokusebenzisa indlela evamile ye-metallurgical, kodwa izinhlobo ezimbili ze-metal powder zixutshwe ndawonye ekucindezelweni kwesikhunta.Egesini elivikelayo (i-hydrogen) kunqubo ye-sintering.Lolu hlobo lwegolide empeleni luyingxube ye-taiwan.Ngenxa yokuthi le nqubo ifana nomkhiqizo we-ceramic, ibizwa nangokuthi i-mold alloy.I-high voltage circuit breaker isetshenziswa kabanzi nge-tungsten yethusi, i-nickel yesiliva, isiliva, i-graphite njengokumelana nokuxhumana ne-arc noma ukumelana ne-arc ring.Isetshenziswa kuma-relay, othintana nabo, ekushintsheni komoya, ukushintshwa kokugeleza okukhawulelwe, isivikelo semoto, iswishi encane, izinto ezisetshenziswayo, izinto zikagesi zasendlini, ugesi wemoto (iswishi yokukhanya nokuqalisa iswishi yokulayisha imoto), iswishi yokuvikela ukuvuza.Uma kuqhathaniswa nesiliva cadmium oxide, isiliva tin oxide ayinayo i-cadmium yensimbi enobuthi, lapho i-oxide yensimbi enokuqina okuphezulu kwe-thermal, ene-conductivity enhle kagesi kanye ne-thermal, enqubweni yokuvala inokumelana nokushisa okuphezulu, ukumelana nokuguguleka kwe-arc futhi i-anti welding, ukuze kuqinisekiswe ukwethembeka kokusebenza kwemishini kagesi, kwandise impilo yesevisi.Futhi ukuthuthukiswa okusheshayo kwe-siliva tin oxide, ngisho nakwenye i-switch kagesi ngaphandle kokwenza izinguquko ezinkulu kungasetshenziswa ngokuqondile i- silver tin oxide esikhundleni se-AgCdO.Ukusetshenziswa kusuka ku-10A - 100A, ekusebenzeni okuningi okusondele nakakhulu kune-silver cadmium oxide.

Iqukethe inani lesiliva ukuze ugweme izizathu zokuvutha kokuxhumana, itheminali yokuxhumana emile ibe yisimo esigobile, ukuthintana okunamandla engxenyeni ephakathi yezinqubo.Ngakho-ke i-arc ngeke ibe endaweni yokuxhumana yomlilo.Kuwuhlobo lwefomu lokuxhumana elingcono, futhi ukusetshenziswa kwalo kuya ngokuya kubanzi.Inqubo yokusebenza yokuxhumana kothintana naye ibeka phambili inani lezidingo zezinto.Ngoba ithusi line-conductivity enhle kagesi kanye ne-thermal conductivity.Ubulukhuni obanele.Iphuzu elincibilikayo eliphakeme, ukucubungula kalula.Ngakho-ke isetshenziswa kabanzi njengengxenye yokuxhumana ye-high voltage circuit breaker.Kodwa ngesandla sethusi i-oxidized kalula, i-oxidation yokumelana nokuxhumana.Ngakho kwamanye ama-circuit breakers, ithusi lalimboze ungqimba olusiliva ngaphandle kokuthintana okuyinhloko.

Isiliva ine-conductivity enhle, ifilimu ye-oxide i-conductive, ingathuthukisa ukusebenza kokuthintana kwethusi okwesiliva.Ngokusetshenziswa njalo kwe-circuit breaker, umphumela wokushisa othintana naye we-arc ukhuphuka kakhulu, indawo yokuxhumana ingase ibe ukulahlekelwa okukhulu, ngakho-ke ukumelana nokushisa kokuxhumana kwesiliva, ukumelana nokumelana ne-arc, ukumelana nemihuzuko nokubeka phambili izidingo eziphakeme.Indlela ye-powder metallurgy ivule indlela entsha yokuthuthukiswa kwezinto zokuxhumana.