Nichrome kwezinto: iimpawu kunye nesicelo

ubomi Modern akunakwenzeka ukuba ukucinga ngaphandle inani elikhulu zombane ezahlukeneyo. Kuba baninzi kubo siba Nichrome inxalenye engundoqo - i "Inhliziyo" indlela. Kwizixhobo ze-elektroniki, izixhobo umatshini, izixhobo amandla ezisetyenziswa kubomi bemihla ngemihla yaye imveliso ngomlinganiselo omkhulu, kuxhomekeke ngqo kwi ucingo kunye ingxubevange yokuqala.

incazelo

Ngowe-1905, isazinzulu American Albert Marsh zithiywe ukudibanisa chromium kunye nickel. Le ndlela yokubala lobunikazi ngolu hlobo lulandelayo 20% chromium ne-80% nickel. Ingxubevange ogama - nichrome. Ekuqaleni, kwakungekho tubal (izinto eliyinjubaqa) kwi mxube yaye yaba-component ezimbini ingxubevange. Namhlanje kuyenzeka ukufumana lunee ezinomthamo nickel ka-55% kunye chromium-15%. Ubumdaka entsimbi, lesilicon, manganese, i-aluminiyamu, titanium, molybdenum, lesilicon. Kukho ngaphezu kweshumi "iiresiphi" metal kuwa phantsi ekubizweni nichrome.

siba Nichrome ukuba omkhulu kakhulu resistivity iye njengesakhi ebalulekileyo izixhobo kunye nezixhobo ezininzi. Kuyinto olukwazi withstanding iqondo lobushushu igcwala aphezulu eqhelekileyo kwiindawo entsimbini. Le ingxubevange unalo impahla ngenxa yobukho chromium, owenza phezu komhlaba lexi a oxide umboniso olukhuselayo. Yena iipeyinti ingxubevange ngombala emnyama. Ukuba ususe (ngesenzo ngoomatshini) umaleko oxidized, utshintsho Tint grey ezimhlophe.

Y binary ingxubevange akukho iipropati owahluke ngokwemvelo, ulungiso multicomponent ukuze okuncitshiswe parameters. siba Nichrome yi ductility nemixawuka okulungileyo. Wire yenziwa nge icandelo eyahlukileyo mm 0,01 ukuya kwi-10. Iimpawu eziphambili zibandakanya:

• resistivity zombane - OM`m 1100-1400;
• indawo yokunyibilika ku degrees 1400 (uluhlu ukusebenza - 800-1100 degrees Celsius);
• mninzi - 8200-8500 kg / m ^3;
• amandla - 650-700 MPA.

iipropati Amanqaku ukuhlangabezana neemfuno aphezulu zobugcisa.

buhle

imfuneko Tall kwaye womelele amacandelo ukusuka Nichrome ingxubevange kungenxa iimpawu ezimangalisayo:

• akukho xesha umhlwa;
• ubunzima low;
• lula inkqubo (ngokulula istampu sesikolo zize welding);
• It enokumelana high ubushushu;
• ixesha elide yaye nezimo ngexesha elinye;
• luphawulwa ukwanda kwentshukumo bume banqande;
• Kuye ubomi inkonzo ende.

Enye inzuzo ebalulekileyo luvukelo kakhulu umbane. Ukuziqhelisa, le parameter ivumela ezimbalwa Nichrome (Nichrome kungajikeleza ubude elifutshane) ukufumana ubushushu ngaphezu ngokuthi, umzekelo, ilungu sentsimbi. Ngenxa yoko, inani elincinci ngentsimbi nga ukunciphisa ubunzima kunye nobukhulu yonke into. Eyona inzuzo nichrome - indibanisela zonke ezi metric kwi umbandela efanayo.

uhlobo

siba Nichrome zingenziwa zokuguqulwa ezahlukeneyo ingxubevange kwaye olulingana ezahlukeneyo. Izitampu zahlukile kumafa zabo kwaye yahlulwe (ngoku) ngokwamaqela amathathu eziphambili:

• Resistor: H20N80 (20% chromium, 80% nickel); H20N73YUM-VI (20% chromium, 73% nickel, 3% aluminiyam, 1.5% molybdenum, ukuya kwi-0.3% manganese, ukuya kwi-0.05% titanium, 2% intsimbi, ukuya kwi-0.05% carbon , linyibilike induction indlela cleaner).
• Kuba ukusetyenziswa kwiqondo lobushushu ngaphezu degrees 900.
• Beengxenye ukufudumeza nokonyuka kwentshukumo amaqondo obushushu aphezulu: HN70YU-H (27% chromium, 70% nickel, 3% aluminiyam, ukuya kwi-0.3% manganese, ukuya ku 0.03% ye atom, kwaye 0.1% of barium 1, 5% intsimbi, ukuya kwi-0.1% carbon).

Ngomhla olinganise kwamalungu alo, iimpawu ingxubevange zixhomekeke. Inani elikhulu chromium kuthintela igcwala.

scope

Phakathi okufunwa izinto wire nichrome inxulumene iimveliso kwimarike yombane. Kweleli yale intsila lisetyenziswa imifuziselo ezininzi ze heater zombane. iingcibi yisebenzise ekhaya:

• izixhobo umlilo neenkuni;
• emlilweni ekhaya ngenxa ukudubula ngodongwe;
• izixhobo zokufudumeza ngokukhawuleza zesinyithi athile smithy;
• ukuvelisa zokufudumeza ngamacebo elula ( "neebhokhwe ');
• abatyhidi ekhaya.

Ukusetyenziswa industrial nickel chromium kwizixhobo khaya ngokubanzi: notsala iinwele, ayini, izifudumezi, ayini ngelotha, electric njalo njalo. Wire ngenkulu cross-candelo kusetyenziselwa izicelo welding oluzenzekelayo. Eso ingxubevange inokufumaneka izixhobo zaselebhu kunye entsimini elektroniki. wire Nichrome iyasetyenziswa apho kuyimfuneko ukumelana kumaqondo obushushu aphezulu kunye bume entsimbini.