Ho elektronike, li-resistors li phetha karolo ea bohlokoa ho laola ho phalla ha hona joale. Ke likarolo tsa bohlokoa ho lisebelisoa ho tloha ho lipotoloho tse bonolo ho ea ho mechine e rarahaneng. Lisebelisoa tse sebelisoang ho etsa li-resistors li ama haholo ts'ebetso ea tsona, ho tšoarella le ho sebetsa hantle. Har'a tsona, li-alloys tsa tšepe-chromium-aluminium, li-alloys tsa nickel-chromium, le li-alloys tsa koporo-nickel li thahasella haholo ka lebaka la thepa ea tsona e ikhethang.
Hobaneng ha li-alloys li phetha karolo ea bohlokoa tlhahisong ea li-resistor
Li-alloys ke motsoako oa likarolo tse peli kapa ho feta, bonyane e 'ngoe ea tsona ke tšepe. Li etselitsoe ho ntlafatsa thepa e khethehileng joalo ka matla, ho hanyetsa kutu le botsitso ba mocheso. Lits'ebetsong tsa resistor, khetho ea alloy e ama mocheso oa mocheso, botsitso le ts'ebetso e akaretsang ea mohanyetsi.
Ke lintho life tsa bohlokoa tsa li-alloys tse sebelisoang ho li-resistors
(1) Ho hanyetsa: Mosebetsi o ka sehloohong oa mohanyetsi ke ho fana ka khanyetso ho phallo ea motlakase. The resistivity ea alloy ke ntlha e ka sehloohong ho khethollang katleho ea eona ho etsa mosebetsi ona. 2.
(2) Temperature Coefficient: Thepa ena e bontša hore na ho hanyetsa ha thepa ho fapana hakae le mocheso. Li-resistors li hloka mocheso o tlase oa mocheso oa ho hanyetsa ho netefatsa ts'ebetso e tsitsitseng ho feta mefuta e mengata ea mocheso.
(3) Corrosion Resistance: Li-resistors li atisa ho pepeseha libakeng tse thata. Li-alloys tse hanyetsanang le oxidation le corrosion li bohlokoa ho boloka bophelo le ho tšepahala ha mohanyetsi.
(4) Matla a Mechini: Bahanyetsi ba tlameha ho mamella khatello ea maikutlo le ho palama libaesekele tse futhumetseng. Li-alloys tse nang le matla a phahameng a mochine li ka mamella maemo ana ntle le ho senyeha.
(5) Thermal Stability: Bokhoni ba motsoako oa ho boloka thepa ea eona ka mocheso o phahameng ke oa bohlokoa, haholo-holo lits'ebetsong tse phahameng tsa matla.
Tšepe ea Chromium Aluminium Alloy - Sebopeho le Lintho:
Lisebelisoa tsa tšepe-chromium-aluminium(FeCrAl) li tsebahala ka ho hanyetsa oxidation ea tsona e ntle le botsitso ba mocheso o phahameng. Ka tloaelo li entsoe ka tšepe, chromium le aluminium, li-alloys tsena ha li theohe haholo mochesong o fihlang ho 1400 ° C (2550 ° F).
Lisebelisoa ho Resistors:
Li-alloys tsa tšepe-chromium-aluminium li sebelisoa haholo ho lihanyetsi tse nang le mocheso o phahameng haholo, haholo lits'ebetsong tse latelang:
- Lisebelisoa tsa ho futhumatsa: Li-alloys tsa Iron Chromium Aluminium li atisa ho sebelisoa e le lisebelisoa tsa ho futhumatsa ka har'a libopi tsa indasteri le lionto ka lebaka la bokhoni ba tsona ba ho boloka botšepehi ba sebopeho mochesong o phahameng.
- Lihanyetsi tsa matla: Li-alloys tsena li boetse li sebelisoa ho lihanyetsi tsa matla tse hlokang botsitso bo phahameng ba mocheso le khanyetso ea oxidation.
- Lits'ebetso tsa likoloi: Ho lisebelisoa tsa elektroniki tsa likoloi, li-alloys tsa FeCrAl li sebelisoa ho lihanyetsi tse sebetsang maemong a mocheso o phahameng, joalo ka litsamaiso tsa mosi.
Nickel-Chromium Alloys - Sebopeho le Matlotlo:
Li-alloys tsa Nickel-chromium (NiCr) ke khetho e 'ngoe e tsebahalang bakeng sa lits'ebetso tsa resistor. Li-alloys tsena hangata li entsoe ka nickel le chromium, eo peresente ea eona e itšetlehileng ka litšobotsi tse lakatsehang.Lisebelisoa tsa NiCrli tsejoa ka khanyetso ea tsona e babatsehang, ts'ebetso e phahameng ea mocheso le ho hanyetsa kutu.
Li-alloys tsa Nichrome li sebelisoa hangata:
- Li-Resistors tsa Lifilimi: Li-resistors tsena li sebelisoa lits'ebetsong moo ho nepahala ho leng bohlokoa le moo NiCr alloy e fanang ka botsitso bo hlokahalang le mocheso o tlase oa mocheso.
- Li-Resistors tsa Wirewound: Ho li-resistors tsa wirewound, terata ea Nichrome e atisa ho sebelisoa ka lebaka la khanyetso e phahameng le bokhoni ba ho mamella libaesekele tse futhumetseng.
- Lisebelisoa tsa Mocheso o Phahameng: Ho tšoana le li-alloys tsa ferrochromium-aluminium, li-alloys tsa nickel-chromium li loketse maemo a mocheso o phahameng, e leng se etsang hore e be tse loketseng bakeng sa lisebelisoa tsa indasteri le tsa sefofane.
Li-alloys tsa koporo-nickel - sebopeho le thepa
Li-alloys tsa koporo-nickel (CuNi) li tsejoa ka mokhoa o motle oa ho tsamaisa motlakase le ho hanyetsa kutu. Li-alloys tsena hangata li na le koporo le nickel, tse nang le thepa e ikhethang e fihlelletsoeng ka ho fapanyetsana litaba tsa nickel. Li-alloys tsa CuNi li bohlokoa ka ho khetheha bakeng sa bokhoni ba tsona ba ho boloka ts'ebetso ea leoatleng le libakeng tse ling tse senyang.
Li-alloys tsa koporo-nickel li sebelisoa lits'ebetsong tse fapaneng tsa ho hanyetsa, ho kenyelletsa:
- Precision Resistors: Ka lebaka la ts'ebetso ea bona e ntle le botsitso,Li-alloys tsa CuNihangata li sebelisoa bakeng sa lihanyetsi tse nepahetseng ho lekanya le ho laola lits'ebetso.
- Lisebelisoa tsa Marine: Ho hanyetsa kutu ea li-alloys tsa CuNi ho li etsa hore li tšoanelehe bakeng sa lihanyetsi tse sebelisoang libakeng tsa leoatle moo ho pepesehela metsi a letsoai ho ka bang kotsi.
- Lits'ebetso tse tlase tsa Mocheso: Li-alloys tsa koporo-nickel li sebetsa hantle libakeng tsa cryogenic, li etsa hore e be tse loketseng bakeng sa lits'ebetso tse tlase tsa mocheso.
FeCrAl, nichrome, le li-alloys tsa koporo-nickel kaofela li na le thepa e ikhethang e etsang hore e tšoanelehe bakeng sa mefuta e fapaneng ea lisebelisoa.
- Li-alloys tsa tšepe-chromium-aluminium li sebetsa hantle libakeng tse phahameng tsa mocheso 'me li loketse hantle bakeng sa lisebelisoa tsa ho futhumatsa le lisebelisoa tsa matla.
- Li-alloys tsa Nickel-chromium li fana ka botsitso bo babatsehang le ho hanyetsa kutu 'me li loketse lihanyetsi tsa filimi le wirewound.
- Li-alloys tsa koporo-nickel li tsebahala ka conductivity ea tsona e phahameng le ho hanyetsa kutu 'me li loketse hantle li-resistors tse nepahetseng le lisebelisoa tsa leoatleng.
Nako ea poso: Sep-26-2024