Mawaya a aloyi a Nickel-chromium (Nichrome) amagwiritsidwa ntchito kwambiri potenthetsa, zamagetsi, ndi mafakitale chifukwa cha kukana kwawo kutentha kwambiri komanso kukhazikika kwamagetsi. Mwa iwo,Ndi 7030ndiNik8020ndi mitundu iwiri yodziwika bwino, koma pali kusiyana kwakukulu pamapangidwe, magwiridwe antchito, ndi mawonekedwe ogwiritsira ntchito. Pansipa pali kufananitsa kwatsatanetsatane kukuthandizani kupanga zisankho zogula mwanzeru:

Kuyerekeza Dimension	Ndi 7030	Nik8020	Zitsanzo Zina Zofanana (mwachitsanzo, Nicr6040)
Chemical Composition	70% Nickel + 30% Chromium	80% Nickel + 20% Chromium	60% Nickel + 40% Chromium
Kutentha Kwambiri Kopitirizabe Kugwira Ntchito	1250°C (Nthawi yaifupi: 1400°C)	1300°C (Nthawi yaifupi: 1450°C)	1150°C (Nthawi yaifupi: 1350°C)
Kukanika kwa Magetsi (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ductility (Elongation at Break)	≥25%	≥15%	≥20%
Kukana kwa Oxidation	Zabwino kwambiri (filimu yowawa kwambiri ya Cr₂O₃)	Zabwino (filimu yochuluka ya oxide)	Zabwino (zosavuta kupukuta pa kutentha kwakukulu)
Weldability	Superior (yosavuta kuwotcherera ndi njira wamba)	Pakatikati (pamafunika kuwongolera kolondola)	Wapakati
Mtengo-Kuchita bwino	Mkulu (ntchito yabwino ndi mtengo)	Zapakatikati (zochuluka za nickel zimawonjezera mtengo)	Zochepa (zochepa zogwiritsa ntchito)
Zochitika Zofananira za Ntchito	Zida zapakhomo, zotenthetsera za mafakitale, zotenthetsera zamagalimoto, zamagetsi zolondola	ng'anjo za mafakitale zotentha kwambiri, zida zapadera zotenthetsera	Zida zotenthetsera zotsika kutentha, zopinga zambiri

Kusanthula Mwatsatanetsatane Kusiyana

1. Chemical Composition & Core Performance

Kusiyana kwakukulu kuli mu chiŵerengero cha nickel-chromium: Nicr7030 ili ndi 30% chromium (yoposa 20% ya Nicr8020), yomwe imapangitsa kuti ductility ndi weldability wake. Ndi elongation panthawi yopuma ≥25%, Nicr7030 imatha kukokedwa mu mawaya abwino kwambiri (mpaka 0.01mm) kapena kupindika mu mawonekedwe ovuta, kupangitsa kuti ikhale yabwino kwa zinthu zomwe zimafunikira kukonzedwa bwino (mwachitsanzo, mawaya otenthetsera mipando yamagalimoto, masensa amagetsi ang'onoang'ono).

Mosiyana ndi zimenezi, nickel ya Nicr8020 yapamwamba (80%) imapangitsa kuti kutentha kwake kukhale kokhazikika, zomwe zimapangitsa kuti zizigwira ntchito mosalekeza pa 1300°C—50°C kuposa Nicr7030. Komabe, izi zimabwera pamtengo wochepetsera ductility (okha ≥15%), kupangitsa kuti ikhale yosayenerera kupindika kapena kupanga njira. Mitundu ina monga Nicr6040 imakhala ndi nickel yotsika, zomwe zimapangitsa kuti pakhale kutsika kwa resistivity ndi kutentha, kuchepetsa kugwiritsidwa ntchito kwawo pazochitika zochepa.

2. Resistivity & Mphamvu Mwachangu

Resistivity imakhudza mwachindunji kutentha kwa kutentha ndi kapangidwe kazinthu. Nicr8020 ili ndi mphamvu yopingasa kwambiri (1.40 Ω·mm²/m), kutanthauza kuti imapanga kutentha kochulukirapo pautali wa unit pansi pa nthawi yomweyo, kuipangitsa kukhala yoyenera kutenthetsa zamphamvu zamphamvu (monga ng'anjo zotentha kwambiri).

Nicr7030's moderate resistivity (1.18 Ω·mm²/m) imakhudza kukhazikika pakati pa kupanga kutentha ndi kugwiritsa ntchito mphamvu. Pazinthu zambiri zamafakitale ndi ogula (mwachitsanzo, mauvuni, zoyatsira zotenthetsera), zimapereka mphamvu zokwanira zotenthetsera ndikuchepetsa kuwononga mphamvu. Kuonjezera apo, resistivity yake yokhazikika (± 0.5% kulolerana) imatsimikizira kugwira ntchito kosasinthasintha pakugwiritsa ntchito nthawi yayitali, kupewa kusinthasintha kwa kutentha.

3. Oxidation Resistance & Service Life

Onse a Nicr7030 ndi Nicr8020 amapanga mafilimu oteteza Cr₂O₃ pa kutentha kwambiri, koma chromium yapamwamba ya Nicr7030 imapanga filimu yolimba, yolimba kwambiri. Izi zimapangitsa kuti zisagwirizane ndi "green rot" (intergranular oxidation) munyengo yachinyontho kapena yocheperako, kukulitsa moyo wake wautumiki mpaka maola 8000+ (20% motalika kuposa Nicr8020 m'malo ovuta).

Nicr6040, yokhala ndi chromium yotsika, ili ndi filimu ya okusayidi yosakhazikika yomwe imakonda kusenda kutentha kopitilira 1000 ° C, zomwe zimapangitsa kuti moyo wautumiki ufupikitsidwe komanso kuchuluka kwa ndalama zokonzera.

4. Mtengo & Kusintha kwa Ntchito

Nicr7030 imapereka ndalama zotsika mtengo: zomwe zili m'munsi mwa nickel (poyerekeza ndi Nicr8020) zimachepetsa mtengo wazinthu zopangira ndi 15-20%, pomwe machitidwe ake osunthika amaphatikiza 80% ya zochitika zamawaya a nichrome. Ndilo chisankho chomwe chimakondedwa pazinthu zopangidwa mochuluka monga zida zapakhomo ndi makina otenthetsera magalimoto, komwe kulinganiza magwiridwe antchito ndi mtengo ndikofunikira.

Nicr8020 yokhala ndi faifi yokwera imawonjezera mtengo wake, kupangitsa kuti ikhale yofunikira pakugwiritsa ntchito mwapadera kutentha kwambiri (mwachitsanzo, kuyesa gawo lazamlengalenga). Mitundu ina ya nickel yotsika ngati Nicr6040 ndiyotsika mtengo koma ilibe magwiridwe antchito kuti ikwaniritse zofunikira zamafakitale kapena zolondola.

Kalozera Wosankha

• SankhaniNdi 7030ngati mukufuna: Kuchita zinthu mosiyanasiyana, kukonza kosavuta (kupindika/kuwotcherera), kutsika mtengo, komanso kugwiritsa ntchito zida zapakhomo, zotenthetsera zamagalimoto, zotenthetsera zamakampani, kapena zamagetsi zolondola.
• SankhaniNik8020ngati mukufuna: Kutentha kwapamwamba kwambiri (1300 ° C+) ndi zinthu zotenthetsera zamphamvu kwambiri (monga ng'anjo zapadera za mafakitale).
• Sankhani mitundu ina (mwachitsanzo, Nicr6040) yongotentha kwambiri, yocheperako (mwachitsanzo, zopinga zoyambira).

Ndikuchita kwake moyenera, kutsika mtengo, komanso kusinthasintha kwakukulu, Nicr7030 ndiye chisankho chotsika mtengo kwambiri kwa makasitomala ambiri. Kampani yathu imapereka makonda (m'mimba mwake, kutalika, kuyika) ndi chithandizo chaukadaulo kuwonetsetsa kuti Nicr7030 ikugwirizana bwino ndi zosowa zanu.