Nichrome-terata: libopeho le dikopo

Theknoloji ea kajeno e etsa hore ditletlebong phahameng ka tshebetso ya thepa lona constituent matching maemo sebele ho sebelisa mehaho. E mong oa lits'epe tse kopantsoeng theknoloji e phahameng ke nichrome. Lithapo le lisebelisoa tse nang le eona, ke manganga le maemo a tletseng bora tshebetso.

History of sibolloa

The motsoako ke komponeng nikele-chromium le mekete e fapaneng eketsa tšepe, a mankanese a, aluminium le ka silicon.

Qalong ke ne ke litsela tse peli se hlahang ho yona. Le metse ka metso ka lipatlisiso tsa saense lefapheng la tsa tšepe alloying le ho fetola thepa tsa bona. Ni le Kr - dikarolo tsa boleng bo phahameng ts'enyeho manganga le mocheso kenelwe steels.

Ka motsoako peli karolo ea nikele le chromium ho ile ha sibolloa ka 1906 ka USA. Kajeno sebetsa diphetolo tse fapa-fapaneng, ho akarelletsa le tse tharo-tšepe tse thehiloeng Bibeleng.

thepa senotlolo

The boitsebiso bakeng sa futhumatsang lisebelisoa tsa sejoale-joale ba ntlo le tšebeliso indasteri e ha ho pelaelo hore nichrome terata. thepa lona ea kopana le phahameng ka ho fetisisa ditlhoko theknoloji.

1. Motlakase resistivity hara 1100-1400 Ohm * m.
2. Qhibiliha ntlha - ka 1400˚S, e le hore ho sebetsa ka 800-1100˚S. Limit bakeng sa tshebetso e itšetlehile ka ea ho hlophisoa. Kahoo, dikahare tšepe ho fokotsa ho 850-900˚S, bakeng sa binary bo hloekileng hoa 1100˚S.
3. Segokanyipalo 8000-8500 lik'hilograma / noun m ^3.
4. Phahameng matla (σ _ka = 650-700 MPa); litsupa bolokwa tlas'a tikoloho ya asiti e senyang le mocheso haholo.
5. Good ductility hammoho le thatafala kholo dumella phethola 'me ho atamela.

makgetheng khethollang

Har'a lihlahisoa ho fetisisa ratoa tsa motlakase ka 'maraka - Nichrome terata. The resistivity ea ena karolo ya motlakase futhumatsang lisebelisoa ikhethang phahameng, e lumellang u ho ba le tlhokeho bophara.

Karolo ea bohlokoa tsa tšepe e hanyetsa lona ho phahameng mocheso ho kena moea le senyang tlas'a maemo a tloaelehileng. A karolo ea bohlokoa e bapala mona google chrome. Elements ke karolo holim'a tsamaisanang le e filimi oxide e, e leng o etsa mosebetsi e sireletsang. Ke boikarabelo ba ho ngollana lefifi 'mala o boitsebiso boo e nkeloa sebaka ke bath tšoeu-o moputsoa nakong tloswa phetha molao tsa lera oxidized.

Ke habohlokoa ho hlokomela hore ho toba le acid ntse o timetsa, le ho feta ho feta ts'enyeho manganga tungsten.

Peli karolo motsoako o thepa a khoheli a. Ba teng bakeng sa diphetolo multiple, empa ba fokola tshebetso.

Nichrome terata e matsutla, a ke ke a susumetsoa habonolo feela ke matla a.

Systematize boitsebiso bo mabapi le kamoo ho hore na terata Nichrome, haholo-holo mokhoa oa ho khetholla ho tloha thepa Link kapa tšoanang:

1. Tšoeu tse ncha tsa tšepe, lefifi - pele e neng e tsoetseng pele.
2. Mpe kapa hlokomolohuoang a khoheli a.
3. Tenyetsehe.
4. Felisoeng ha ke acid, ho kena moea botsitso tlas'a tšusumetso ea thempereichara e phahameng.

le diselefounu tsa nomenclature

Brands o teng fapana ka sebopeho, eachother kgatlhanang Nichrome motsoako. Terata e na le tšebeliso atile, e leng e laolwang ke thepa motho ka mong.

• Group 1 - resistor lintho tse bonahalang: H20N80, H20N73YUM-VI, VI-N80HYUD, H15N60.
• Group 2 - likarolo Metal futhumatsang bakeng sa ho sebelisoa malapeng le liindastering le litšobotsi tse phahameng tsa ho hanyetsa mocheso: H20N80-H-VI, H15N60-N, N-HN70YU, H20N80-H HN20YUS.
• Group 3 - bakeng sa tshebetso ka thempereichara e fihlela 900˚S: N50K10, Kh25N20.

The bophara ya terata Nichrome tsa sehlopha sa pele ke 0,009-0,4 limilimithara, 'me ea bobeli - 0,2-7,5 limilimithara.

"Le tsoanang la" tse Cantal kapa fehrali - lits'epe tse kopantsoeng chromium aluminium le tšepe. Ba ile ba boela ba tšoauoa ka phahameng resistivity motlakase, ho hanyetsa mocheso ka hare 1250-1400˚S, empa tlase e ka tšeptjoang, le hoja boleng ba tlaase (H23YU5, H13YU4, H23YU5T, H27YU5T, H15YU5).

deciphering litempe

Properties le ho sebelisa lihlahisoa ho tloha nichrome ikemiselitse ke lik'hemik'hale lona sebopeho. Nahana ka batho ba ka sehloohong.

• H20N73YUM-VI: chromium - 20% nikele - 73% aluminium - 3% molybdenum - 1.5% mankanese - ho fihlela ho 0,3% thaethaniamo - ya 0.05%, tšepe - 2%, carbon - ho ya 0.05%; qhibilihile ka mokhoa lephaka induction;
• HN70YU-H: Kr - 27%, Ni - 70%, Al - 3%, MN - ho fihlela ho 0,3%, nt - ho 0,03%, Ba - ho fihlela ho 0.1%, Fe - 1.5% , C - 0,1%; bakeng sa thepa ea motheo ea motlakase futhumatsang;
• HN20YUS: Kr - 20%, Ni - 20%, Al - 1%, Zn - ho fihlela ho 0,2%, Ca - ho fihlela ho 0.1%, Si - 2.5%, Fe - 50%, C - ho 0, 08% - heaters bakeng sebopi liindasteri.

Mefuta ea lihlahisoa

Kgetho ya motsoako efe kapa efe eo e tšoauoa ka litšobotsi tse boleng bo phahameng ea theknoloji le ho phetha molao feela, e lokela ho motheo o tiileng le ho laoloa. Haholo-holo ha ho tluoa tabeng ea theko ea phahameng. Ka tsela eo theknoloji e phahameng le lintho tse bonahalang e theko e boima e nichrome terata. GOST 8803-89, 12766.1-90, 12766.3-90, 12766.4-90 e hlalosa se hlokahalang, libōpeho le dikopo ho tšoaea. Ho latela melao-motheo le ho itšetlehile ka litšobotsi tsa sefahleho, tšepe e hlahiswa e rekisoe ka mokgwa wa terata kapa theipi, le ho khetha tseo itšetlehile ka bophara ba, karolo sefapano, bolelele, tšebeliso e itseng.

A mohloding loketse e phuthoa ho indasteri difeme theipi zigzag, e ikharileng terata.

Product ga tlhaloso

Ha a khetha lihlahisoa ho tloha nichrome ke habohlokoa ho nahana ka litšobotsi tsena tse latelang:

• ka lebitso resistivity;
• bophara, le sefapano se karolo le boima ba 'mele;
• sebele impedance le mocheso ho sebelisa mehaho mekoloko ho itšetlehile ka entsprechen meleng.

Melemo ka lebitso la litšobotsi tsa motheo parametric ikemiselitse ke GOST le itšetleha ka sehlopheng le sebopeho.

Nichrome terata-bophara rerang-karolo leketla sefapanong lona le ngollana boima skein sepheo hanyetsa.

Kahoo, boima ba 'mele ea terata (nichrome) limithara tse 100 sehlahisoa ke ka ho toba tekanyo e lekanang ya ho boholo ba eona,' me ho bophara ba le sebakeng sectional - ke inversely tekanyo e lekanang ya ho hanyetsa sebele.

Mocheso ho sebelisa mehaho e itšetlehile eseng feela ka ea lik'hemik'hale, empa hape ka litšobotsi parametric.

The bophara ea terata e ntseng e hlahisoang ke bahlahisi, ho ke ke ka hare ho 0,05-12 limilimithara le litheipi - 0,15-3,2 limilimithara.

kopo

Boleng kamehla lokafatsa litšenyehelo. E tšoanang e sebetsa ho motsoako Nichrome. Terata le hlobolisa ea boitsebiso boo ba ho pharaletseng sebelisoa ka libakeng tse moo lirafshoa tse ling tse leha e le efe ka se nka sebaka sa bona. Phahameng motlakase ho hanyetsa, ho kena moea hanyetsa, boleng bo phahameng thepa phetha molao, ho akarelletsa le libakeng senyang, e phahameng mocheso maemo a ho sebetsa - tsohle ena ka sebelisoa masimong a sa tšoaneng.

Ho indasteri e:

• Thermocouples metallurgic sebopi motlakase.
• likarolo mehaho bakeng induction thepa tšepe-qhibiliha.
• Industrial ventilation omisa.
• Likarolo tse ling tsa litanka le phapanyetsano ea mocheso o matla.
• Motlakase ho hlahisoeng: resistors le rheostats.
• Ba bang ba li-electrode ho tjheseletsa.
• Single le selotlolo mokhanni motlakase lithapo.

Ho tse khōlō mehaho karolo ea lisebelisoa tsohle tse teng kajeno:

• likarolo futhumatsang ka kettles motlakase, heaters metsi, litanka, heaters.
• likarolo futhumatsang ka dryers moriri, kobeha litsepeng, litšepeng.
• Kfz-Händler likerese le tsamaiso ea ho futhumatsa.
• Electronic koae.

Mohlomong theko - feela drawback tse bonahalang Nichrome. Terata bicomponent mofuta nikele-chromium tla bitsa chelete e ngata haholoanyane. The dikahare tsa tšepe le fokotswa tjhelete ya nikele, le eena, a laola ka theko e tlaase, empa u se ke ua fana ka menyetla e Cr20Ni80. Le ho khetha itšetlehile ka seo a se hlokang ho botekgeniki.

Khetha lihlahisoa ho tloha nichrome ha e le hantle o sebetse ka boitsebiso bo ka lik'hemik'hale thahasella cha ea, conductivity lona motlakase le ho hanyetsa, litšobotsi meleng bophara ba, sefapano sectional bolelele. Taba ea bohlokoa ke thahasello ka ditokomane tshwanelanang, hammoho le ho khona ho pono khetholla ho motsoako ho tloha lona "le baphadisani". Hantle kgethile lintho tse bonahalang - le senotlolo ho tšepahala ha thepa le theknoloji ea nna le seabe ka a eona.