Nichrome-uea: 'ano a me ka noi

enehana Hoikehonua, e ukuhi i kiʻekiʻe e koi ma luna o ka hana ana o kona constituent mea'ālike ka maoli pae'ōnaehana ana. Kekahi o ka mea kiʻekiʻe-ʻenehana oka a ka nichrome. Kaula a me nā manaʻo i loaʻa ka mea, e hoʻopale i kaʻenemi ana hana.

Mōʻaukala o ka Kaka

Ke oka mea he nikala-chromium hui, a me ka likeʻole hui hao, manganese, Aluminum a me ka silikone.

Mua au i nāʻaoʻao o ke kumu. Uhukiia ma ka 'epekema noiʻi i loko o ka mahinaʻai o ke hooheheeia alloying a modifying i ko lakou waiwai. Ni a Cr - eiiiiiaiou o kiʻekiʻe-e like ai ka popopo-hoʻopale a me ka wela hoʻopale steels.

E like me ka mau-ke keʻena oka a pau o ka nikala a me ka chromium, ka mea iʻike i ka 1906 o ka Hawaii. I kēia lā pili likeʻole hoʻololi 'ia, me he ekolu-hao-ka nānā' ana.

Key waiwai

Ka mea no ke kālā no paio hahana maoli nō nā mīkini home no ka hale a me ka hanalima ana mea kanalua nichrome uea. Kona waiwai halawai pu me ka mea kiekie loaʻanoʻenehana koi.

1. Uila resistivity i loko o 1100-1400 Ohm * m.
2. Heheʻe wahi - e pili ana i 1400˚S, hele 'ana o ia hana ma 800-1100˚S. Kali no ka hana hilinaʻi nui ma luna o ka haku mele 'ana. Ke'ī mai, o ka hao maʻiʻo ho'ēmi i kā mea i 850-900˚S, no ke gula aeaie ka mea, o 1100˚S.
3. Nuʻa 8000-8500 kg / ka m ^3.
4. High ikaika (σ _i = 650-700 MPa); nā hoailona hūnā ma lalo oʻakika corrosive a puni, a me ka nui ana wela.
5. Good ductility pu me ka exponential paakiki e leie aku no ka ape a me ka huki.

hanohano nō hoʻi hiʻona

Mawaena o ka loa hanohano pou huahana ma ke kuai - Nichrome uea. Ke resistivity o keia ke keʻena o ka uila paio hahana maoli nō nā mīkini home o ke koa kiʻekiʻe, e leie aku oe ia i ke ākea koi.

An pono o ka metala o kona ia'ku ke kiʻekiʻe ka mahana'okesaside a corrosive ma lalo o maʻamau ana. A ki kūlana ua hoʻokani 'aneʻi chrome. Hehee ai kūpono ai i ka ili e like me ka'okesaside ho film, i hanaʻia i ka aiiay kuleana pili i. He kuleana no ka like uliuli mea e UAIAaIN ma kekahi ano keokeo-oho hina i ka mechanical e ana o ka oxidized, ahu iho.

Ua mea waiwai 'ana i kumumanaʻo i ka hui' ana me nāʻakika nō pepehi ia, e oi aku mamua o ka ka popopo-hoʻopale tungsten.

Elua-ke keʻena oka meaʻume mākenēki waiwai. Ka mea, ana no ka mau ka hoʻololi 'ana, akā, ua hoʻonāwaliwaliʻia lawelawe.

Nichrome uea Ua haka, hiki ole ke maʻalahi 'ole ma o ka mana.

Systematize 'ike e pili ana pehea e ho oholo i ka Nichrome uea,ʻano nui pehea e maopopo ia mai mawaho a like kumuhana:

1. White hou metala, pouli - mua ulu.
2. Noke a negligibleʻume mākenēki.
3. Rigidity.
4. Luku ma nāʻakika,'okesaside kumupaʻa ma lalo o ka aoao o ke kiʻekiʻe mahana.

kuni nomenclature

Na lama oko ma ka haku mele 'ana, ho oweliweli huahelu Nichrome oka a pau. Ka uea i ka laha ana, a me ka nānā 'ana i ka waiwai kanaka o kela a me keia.

• Group 1 - mea pale mū holapū mea: H20N80, H20N73YUM-VI, VI-N80HYUD, H15N60.
• Group 2 - Metal paio hahana maoli nō nā kumumea no ka lulu popilikia a me ka hanalima ana me ka kiʻekiʻe 'ano o ka wela ia'ku: H20N80-H-VI, H15N60-N, N-HN70YU, H20N80-H HN20YUS.
• Group 3 - no ka hana ma ka mahana i 900˚S: N50K10, Kh25N20.

Ke anawaena o ka Nichrome uea o ka pūʻulu mua o 0,009-0,4 mm o, a me ka lua o ka - 0,2-7,5 mm o.

"Poe hoahanau aku hoi" i Cantal a fehrali - chromium oka a, Aluminum a me ka hao. Ka mea, i kekahi wehewehe aku e kiʻekiʻe uila resistivity, ia'ku i ka wela i loko o 1250-1400˚S, akā, emi ike loea, albeit haahaa cia (H23YU5, H13YU4, H23YU5T, H27YU5T, H15YU5).

deciphering A hehi ihola au

Ka waiwai a me ka noi o huahana mai nichrome e hooponoponoia ia mea, ma kona Nine Inch haku mele 'ana. i ka papa kuhikuhiE poʻe noonoo.

• H20N73YUM-VI: chromium - 20% nikala - 73% Aluminum - 3% molybdenum - 1.5% manganese - mai i 0,3% titanium - 0,05%, hao - 2%, o carbon - i 0,05%; maule iho la me ka holo hoʻokomo iaoia;
• HN70YU-H: Cr - 27%, Ni - 70%, Al - 3%, HI - i ia 0,3%, cs - ia 0,03%, BA - i ia 0,1%, Fe - 1.5% , C - 0,1%; no ka uila paio hahana maoli nō oihana mua;
• HN20YUS: Cr - 20%, Ni - 20%, Al - 1%, Zn - i ia 0,2%, Ca - i ia 0,1%, Si - 2,5%, Fe - 50%, C - i 0, 08% - heaters no hanalima umu.

'ano o nā huahana

Koho ana i kekahi oka a i ua wehewehe aku ma kbpsʻanoʻenehana, a me mechanical ano, pono e ili a me ka hooponopono. No ka wā e hele mai ai i ke kiʻekiʻe kāki. Pela ke kiʻekiʻe-ʻenehana a me ka pipiʻi mea mea nichrome uea. GOST 8803-89, 12766.1-90, 12766.3-90, 12766.4-90 Ho'ākāka 'na koi, hiʻona a me ka omaka noi. I kulike ai me na hae, a ke kaumaha ma muli lehalehu t hiʻona, i ka mea hiki ke hooheheeia ua hōʻike no ka kuai i loko o ka palapala o ka uea a leki, i ke koho ana i hilinaʻi nui ma luna o ke anawaena, keÿa pauku, lōʻihi, kekahi ana.

A kahi kupono ua olokaa wale no hanalima manufacturing lipine zigzag, a wili uea.

Product hoakaka

Ka wā koho huahana mai nichrome e noonoo i ka kēia mau hiʻona mea nui:

• palena iki resistivity;
• anawaena, kea pauku a me ke kaumaha;
• maoli impedance a me ka pae'ōnaehana mahana papa koa ke kaumaha ma muli physical kiko'î.

Ka palena iki aiee o ke kumu o parametric ano i manao ia e ka GOST, a hilinaʻi ma luna o ke kaha a me ka haku mele 'ana.

Nichrome uea-anawaena hoʻoholo kona kea-pauku, a like ke kaupaonaʻana skein Pahuhopu e kū'ē'ē mai.

Ke'ī mai, i ke kaumaha o ka uea (nichrome) 100 mika huahana mea pololei hapaʻauhau i kona nui, a me ke anawaena, a me ka mahele wahi - mea inversely hapaʻauhau i ka mea maoli e kū'ē'ē mai.

Ka pae'ōnaehana ka mahana hilinaʻi nui ole wale ma luna o ka Nine Inch haku mele 'ana, akā, no hoi ma ka parametric ano.

Ke anawaena o ka uea i hua mai ma Manufacturers, ia mea i loko o 0,05-12 mm o a me ka leki - 0,15-3,2 mm o.

palapala noi

Mea e like ai mau ho'āpono aku i ka waiwai e lilo aku. ʻO ia pili i ka Nichrome oka a pau. Uea a me ka wehe 'ana i kēia mea e hoʻomano hoʻohana i loko o ka wahi, kahi i kekahi'ē aʻe i eliiaʻi hiki ole kuapo ia. High uila ia'ku, 'okesaside ia'ku, kiʻekiʻe-e like ai ma paʻi waiwai, a me corrosive hana kūpono, kiʻekiʻe wela pae'ōnaehana kūlana - a pau i kēia hiki ke hoʻohana 'ia i loko o nā kula.

Ma ka hana:

• Thermocouples metallurgic ka pila umu.
• Mall nā kumumea no ka hoʻokomo metala-hauneneʻe lako a pan.
• Hanalima hoʻokomo ea ka maloʻoʻana.
• Māhele o nā ieoaeunoai a me ka wela poe kuai moni.
• Uila? Iecaianoaaiiuo: resistors a me rheostats.
• Kekahi mau nā uila aʻa lolo no ka kuʻihao.
• Single a me ka nunui-alakaʻi mele pou kaula.

He ka papa kuhikuhiE mall ke keʻena o nā mea a pau kēia nā mīkini home.

• Paio hahana maoli nō nā kumumea i loko o ka pila ipu lepo, ka wai heaters, ieoaeunoai, heaters.
• Paio hahana maoli nō nā kumumea i loko o ka lauoho dryers, hoʻohuli akula ka hao, ka hao.
• Kaʻa ihoiho a me ka paio hahana maoli nō nenoai.
• Electronic uahi paka.

Paha i ke kumukuai - drawback wale Nichrome mea. Ka Moana bicomponentʻano nikala-chromium e e oi pipiʻi. Ka maʻiʻo o ka hao a me ka hoemi dala o ka nikala, ma ka huli, hooponopono i ka waiwai e lilo aku haʻahaʻa, akā, e mai i ka manawa kūpono i Cr20Ni80. Ka wae hilinaʻi nui ma luna o ka oaoieei-koi.

E koho huahana mai nichrome maoli hana me ka 'ike ma luna o ka Nine Inch haku mele' ana o ka hoihoi ana i ka hao, kona uila conductivity a me ia'ku, i ke kino ai 'ano o ke anawaena, keʻa-mahele lōʻihi. Ālai 'hoihoi i loko o ka pili i nā moʻolelo, e like me ia e hiki ke visuallyʻike i ka oka a pau, mai kona "nā kānaka hoʻokūkū". Pono i koho mea - i ke ki i ka pono o ka lako a pan a me ka 'ike loea hou ana o konaʻano kaua.