Hoʻohana nui ʻia nā uea alloy Nickel-chrome (Nichrome) i ka hoʻomehana ʻana, uila, a me nā ʻoihana ʻoihana ma muli o ko lākou kūpaʻa kiʻekiʻe kiʻekiʻe a me ka hana uila paʻa. Iwaena o lakou,Nicr7030aNicr8020ʻO nā hiʻohiʻona nui loa ʻelua, akā aia nā ʻokoʻa nui i ka haku mele, hana, a me nā hiʻohiʻona noi. Aia ma lalo kahi hoʻohālikelike kikoʻī e kōkua iā ʻoe e hoʻoholo i nā hoʻoholo kūʻai.

Ana Hoʻohālikelike	Nicr7030	Nicr8020	Nā Hoʻohālike Maʻamau ʻē aʻe (e laʻa, Nicr6040)
Hoʻohui Kimia	70% Nikela + 30% Chromium	80% Nikela + 20% Chromium	60% Nikela + 40% Chromium
Ka Mahana Hana Hoomau Kiekie	1250°C (Ka piko pōkole: 1400°C)	1300°C (Ka piko pōkole: 1450°C)	1150°C (Ka piko pōkole: 1350°C)
Ke kū'ē uila (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ductility (Elongation at Break)	≥25%	≥15%	≥20%
Kū'ē'Okida	Maikaʻi (kiʻiʻoniʻoni Cr₂O₃ paʻa)	Maikaʻi (kiʻiʻoniʻoni oxide mānoanoa)	Maikaʻi (hiki i ka ʻili ʻana i ka wā kiʻekiʻe)
Weldability	Superior (maʻalahi e wili me nā ʻano maʻamau)	Kaulike (koi i ka mana koho pololei)	Kaumaha
Kūʻai-Pono	Kiʻekiʻe (hana kaulike a me ke kumu kūʻai)	Medium (ʻoi aku ka nui o ka nickel content e hoʻonui i ke kumukūʻai)	Haʻahaʻa (palena noi palena ʻia)
Nā hiʻohiʻona noi maʻamau	ʻO nā mea hana hale, ka hoʻomehana ʻoihana, ka hoʻomehana kaʻa, ka uila pololei	ʻO nā kapuahiʻoihana kiʻekiʻe, nā mea hoʻomehana kūikawā	Nā mea hoʻomehana wela haʻahaʻa, nā mea pale maʻamau

ʻIkepili ʻokoʻa kikoʻī

1. Hoʻohui Kemika a me ka hana kumu

Aia ka ʻokoʻa koʻikoʻi i ka ratio nickel-chromium: ʻo Nicr7030 ka 30% chromium (ʻoi aku ka kiʻekiʻe ma mua o ka Nicr8020's 20%), e hoʻonui ai i kona ductility a me ka weldability. Me ka elongation ma ka haʻihaʻi o ≥25%, hiki ke huki ʻia ʻo Nicr7030 i nā uwea ultra-maikaʻi (i lalo i 0.01mm) a i ʻole i hoʻopaʻa ʻia i loko o nā ʻano paʻakikī, e kūpono ia no nā huahana e koi ana i ka hana pololei (e laʻa, nā uwea hoʻomehana noho kaʻa, nā mea ʻike uila liʻiliʻi).

Ma ka hoʻohālikelike ʻana, ʻoi aku ka nui o ka nickel content o Nicr8020 (80%) i kona kūpaʻa kiʻekiʻe-mehana, e ʻae iā ia e hana mau ma 1300°C—50°C kiʻekiʻe ma mua o Nicr7030. Eia nō naʻe, hiki mai kēia ma ke kumukūʻai o ka hoʻohaʻahaʻa ductility (ʻo ≥15%) wale nō, e ʻoi aku ka maikaʻi no ka kuʻi ʻana a i ʻole ka hana ʻana. ʻO nā hiʻohiʻona ʻē aʻe e like me Nicr6040 he haʻahaʻa haʻahaʻa haʻahaʻa nickel, e hopena i ka resistivity haʻahaʻa a me ke kūpaʻa wela, e kaupalena ana i kā lākou hoʻohana ʻana i nā hiʻohiʻona haʻahaʻa.

2. Resistivity & Energy Efficiency

Pili pololei ka Resistivity i ka pono o ka wela a me ka hoʻolālā ʻāpana. ʻOi aku ka ikaika o ka Nicr8020 (1.40 Ω·mm²/m), ʻo ia ka mea e hoʻohua ai i ka wela i kēlā me kēia ʻāpana lōʻihi ma lalo o ke au like, no laila kūpono ia no nā mea hoʻomehana mana kiʻekiʻe (e laʻa, nā umu hoʻoheheʻe wela kiʻekiʻe).

ʻO ka resistivity haʻahaʻa o Nicr7030 (1.18 Ω·mm²/m) ke kau nei i kahi kaulike ma waena o ka hana wela a me ka hoʻohana ʻana i ka ikehu. No ka nui o nā noi ʻoihana a me nā mea kūʻai aku (e laʻa, nā umu, nā pā hoʻomehana), hāʻawi ia i ka mana hoʻomehana i ka wā e hōʻemi ana i ka pau ʻana o ka ikehu. Hoʻohui ʻia, ʻo kona kūpaʻa paʻa (± 0.5% ka hoʻomanawanui) e hōʻoia i ka hana maʻamau ma luna o ka hoʻohana lōʻihi, e pale ana i ka fluctuation o ka wela.

3. Kū'ē 'Oxidation & Life Service

Hoʻokumu ʻia ʻo Nicr7030 a me Nicr8020 i nā kiʻiʻoniʻoni Cr₂O₃ pale i nā wela kiʻekiʻe, akā ʻo Nicr7030 kiʻekiʻe o ka chromium e hana i kahi kiʻiʻoniʻoni ʻoi aku ka lōʻihi. ʻO kēia ka mea e pale ai i ka "'ōmaʻomaʻo'ōmaʻomaʻo" (intergranular oxidation) i ka humid a i ʻole ka hoʻohaʻahaʻa ʻana i ka lewa, e hoʻolōʻihi i kona ola lawelawe i 8000+ mau hola (20% lōʻihi ma mua o Nicr8020 i nā wahi paʻakikī).

ʻO Nicr6040, me ka haʻahaʻa chromium maʻiʻo, loaʻa kahi kiʻi ʻoniʻoni oxide liʻiliʻi i hiki ke ʻili i nā mahana ma luna o 1000 ° C, e alakaʻi ana i ka pōkole o ke ola lawelawe a me ka hoʻonui ʻana i nā kumukūʻai mālama.

4. Uku a me ka hiki ke hoʻololi

Hāʻawi ʻo Nicr7030 i ka ʻoi aku ka maikaʻi o ke kumu kūʻai: ʻo kāna ʻike nickel haʻahaʻa (hoʻohālikelike ʻia me Nicr8020) e hōʻemi ana i nā kumukūʻai maka ma 15-20%, ʻoiai ʻo kāna hana versatile e uhi ana i ka 80% o nā hiʻohiʻona noi uea nichrome. ʻO ia ka koho i makemake ʻia no nā huahana i hana nui ʻia e like me nā mea pono hale a me nā ʻōnaehana hoʻomehana automotive, kahi koʻikoʻi ke kaupaona ʻana i ka hana a me ke kumukūʻai.

Hoʻonui ko Nicr8020 maʻiʻo nickel kiʻekiʻe i kona kumukūʻai, no laila pono wale ia no nā noi wela kiʻekiʻe kūikawā (e laʻa, ka hoʻāʻo ʻana i nā mea aerospace). ʻO nā hiʻohiʻona haʻahaʻa-nickel ʻē aʻe e like me Nicr6040 ʻoi aku ka liʻiliʻi akā nele i ka hana e hoʻokō ai i nā koi uila ʻenehana a pololei paha.

Alakai Koho

• E kohoNicr7030inā makemake ʻoe: ʻO ka hana maʻalahi, ka hana maʻalahi (kuʻi / welding), ka maikaʻi o ke kumu kūʻai, a me ka hoʻohana ʻana i nā mea hana hale, ka hoʻomehana kaʻa, ka hoʻomehana ʻoihana, a i ʻole nā ​​mea uila pololei.
• E kohoNicr8020inā makemake ʻoe: ʻOi aku ka mahana hana kiʻekiʻe (1300°C+) a me nā mea hoʻomehana mana kiʻekiʻe paʻa (e laʻa, nā kapuahi ʻoihana kūikawā).
• E koho i nā hiʻohiʻona ʻē aʻe (e laʻa, Nicr6040) wale nō no nā hiʻohiʻona haʻahaʻa haʻahaʻa, noi haʻahaʻa (e laʻa, nā mea pale kumu).

Me kāna hana kaulike, uku-pono, a ākea ākea, ʻo Nicr7030 ka koho maikaʻi loa no ka hapa nui o nā mea kūʻai. Hāʻawi kā mākou hui i nā kikoʻī kikoʻī (ka anawaena, ka lōʻihi, ka pahu) a me ke kākoʻo ʻenehana e hōʻoia i ka Nicr7030 kūpono i kāu pono noi.