1. Nā meaʻokoʻa

nickel chromium huilaʻO ka uea ka nui o ka nickel (Ni) a me ka chromium (Cr), a hiki ke loaʻa i nā mea liʻiliʻi ʻē aʻe. ʻO ka maʻiʻo o ka nickel i ka nickel-chromium alloy ka mea maʻamau ma kahi o 60% -85%, a ʻo ka ʻike o ka chromium ma kahi o 10% -25%. No ka laʻana, ʻo ka nickel-chromium alloy Cr20Ni80 he chromium ma kahi o 20% a me nickel ma kahi o 80%.

ʻO ka mea nui o ka uea keleawe he keleawe (Cu), nona ka maʻemaʻe e hiki ke piʻi aku ma mua o 99.9%, e like me T1 keleawe maʻemaʻe, keleawe maʻamau e like me 99.95%.

2. Nā Pono Kino ʻokoʻa

kalakala

- ʻO ka uea Nichrome ke kala hina hina. ʻO kēia ke kumu o ka hui pū ʻana o ka luster metala o ka nickel a me ka chromium e hāʻawi i kēia kala.

- He ʻulaʻula ʻulaʻula ke kala uea keleawe, ʻo ia ka waihoʻoluʻu maʻamau o ke keleawe a loaʻa ka ʻulaʻula metala.

ʻO ka mānoanoa

- He nui ka laina laina o ka nickel-chromium alloy, ma kahi o 8.4g/cm³. No ka laʻana, 1 cubic mika o ka nichrome uea i ka nuipa o 8400 kg.

- Kauwea keleaweHe 8.96g/cm³ ka mānoanoa, a ʻoi aku ke kaumaha o ka leo like o ka uea keleawe ma mua o ka uea nickel-chromium alloy.

Lae hehee

-Nickel-chromium alloy he wahi hoʻoheheʻe kiʻekiʻe, ma kahi o 1400 ° C, hiki iā ia ke hana i nā mahana kiʻekiʻe me ka maʻalahi o ka heheʻe.

-ʻO ka helu hoʻoheheʻe o ke keleawe ma kahi o 1083.4 ℃, ʻoi aku ka haʻahaʻa ma mua o ka nickel-chromium alloy.

Hoʻolima Uila

-ʻO ka uea keleawe ke alakaʻi maikaʻi loa i ka uila, ma ke kūlana maʻamau, he conductivity uila ke keleawe ma kahi o 5.96 × 10 kuhi S / m. ʻO kēia no ka mea ʻo ke ʻano uila o nā ʻātoma keleawe e hiki ai ke hoʻokele maikaʻi i kēia manawa, a he mea hoʻohana maʻamau ia, i hoʻohana nui ʻia i nā kula e like me ka hoʻoili mana.

Nickel-chromium alloy uea i ilihune uila conductivity, a me kona uwila conductivity ua oi emi ma mua o ke keleawe, ma kahi o 1.1×10⁶S/m. ʻO kēia ma muli o ke ʻano atomic a me ka launa pū ʻana o ka nickel a me ka chromium i loko o ka alloy, no laila ke kāohi ʻia ka conduction o nā electrons i kekahi ʻano.

ʻO ke kau wela wela

- Loaʻa i ka Copper ka maikaʻi o ka wela wela, me ka thermal conductivity ma kahi o 401W / (m · K), e hoʻohana nui ʻia ke keleawe ma nā wahi i makemake ʻia ai ka conductivity thermal maikaʻi, e like me nā mea hoʻopau wela.

He palupalu ka conductivity wela o ka nickel-chromium alloy, a ʻo ka conductivity wela ma waena o 11.3 a me 17.4W/(m·K)

3. Na Mea Kemika Okoa

Pale ʻino

Loaʻa i nā alloys Nickel-chromium ke kūpaʻa ʻino maikaʻi, ʻoi aku ka nui ma nā wahi hoʻonā wela kiʻekiʻe. Hoʻokumu ʻia ka Nickel a me ka chromium i kiʻi ʻoniʻoni oxide ma luna o ka ʻili o ka alloy, e pale ana i nā hopena oxidation hou aʻe. No ka laʻana, i ka ea wela kiʻekiʻe, hiki i kēia ʻāpana o ke kiʻi ʻoniʻoni ke pale aku i ka metala i loko o ka huila mai ka ʻino hou aʻe.

- Hoʻoheheʻe ʻia ke keleawe i ka ea a lilo i vercas (copper carbonate kumu, formula Cu₂(OH)₂CO₃). ʻOi aku ka maikaʻi ma kahi ʻano haʻahaʻa, e hoʻopau mālie ʻia ka ʻili o ke keleawe, akā maikaʻi kona kūpaʻa ʻana i kekahi mau ʻakika non-oxidizing.

Paʻa Kemika

- Loaʻa i ka Nichrome alloy ke kūpaʻa kemika kiʻekiʻe a hiki ke noho paʻa i mua o nā kemika he nui. Loaʻa iā ia kahi ʻae ʻana i nā waikawa, nā kumu a me nā mea kemika ʻē aʻe, akā hiki iā ia ke hana pū me nā waikawa oxidizing ikaika.

- Ke keleawe i loko o kekahi mau oxidants ikaika (e like me ka nitric acid) ma lalo o ka hana a ka hoʻololi kemika ʻoi aku ka ikaika, ʻo ka hoʻohālikelike ʻana ʻo \(3Cu + 8HNO₃(dilute)=3Cu(NO₃ +2NO↑ + 4H₂O\).

4. Hoohana like ole

- uwea huila nickel-chromium

- Ma muli o kona kūpaʻa kiʻekiʻe a me ke kūpaʻa wela kiʻekiʻe, hoʻohana nui ʻia ia e hana i nā mea hoʻomehana uila, e like me nā uea hoʻomehana i nā umu uila a me nā mea hoʻomehana wai uila. Ma kēia mau mea hana, hiki i nā uea nichrome ke hoʻololi pono i ka ikehu uila i ka wela.

- Hoʻohana pū ʻia i kekahi mau manawa kahi e pono ai e mālama ʻia nā waiwai mechanical i nā wahi wela wela, e like me nā ʻāpana kākoʻo o nā umu wela wela.

- Uea keleawe

- Hoʻohana nui ʻia ke kelepona keleawe no ka lawe ʻana i ka mana, no ka mea hiki i kāna conductivity uila maikaʻi ke hōʻemi i ka nalowale o ka ikehu uila i ka wā o ka lawe ʻana. I loko o ka ʻōnaehana mana, hoʻohana ʻia ka nui o nā uea keleawe e hana i nā uea a me nā kaula.

- Hoʻohana ʻia e hana i nā pilina no nā mea uila. Ma nā huahana uila e like me nā lolouila a me nā kelepona paʻalima, hiki i nā uea keleawe ke ʻike i ka lawe ʻana i ka hōʻailona a me ka hāʻawi mana ma waena o nā ʻāpana uila.