Aarayo Nichrome: guryaha iyo codsiga

nolosha casriga ah waa wax aan macquul aheyn in la qiyaaso oo aan la tirin weyn ee qalabka kala duwan. Waayo, qaar badan oo iyaga ka mid muquuninta Nichrome waa qayb ka ugu weyn - ka "qalbi" ee hab ay. qalabka Electronic, qalabka mashiinka, qalab awood loo isticmaalo nolol maalmeedka iyo in wax soo saarka oo baaxad weyn oo ah, waa si toos ah ay ku xidhan tahay silig la daawaha asalka ah.

description

In 1905, saynisyahan American Albert Marsh asal ahan in la isu geeyo chromium iyo nickel. formula The tiga sida soo socota 20% chromium iyo 80% nickel. daawaha ayaa loo magacaabay - nichrome. Markii hore, ma jirin ligation (xubno madax adkaadeen) in isku dar ah oo ay ahayd daawaha laba qayb. Maanta waxaa suurtagal ah in la helo kala duwanaansho la content nickel ah 55% iyo 15% chromium. Nijaasta ahaa bir, Silicon, manganese, aluminium, titanium, molybdenum, Silicon yihiin. Waxaa jira in ka badan toban "cuntada" biraha hoos magacaabista ah ee nichrome dayrta.

aarayo Nichrome isagoo aad u sare resistivity ayaa noqdeen qayb lagama maarmaan ah ee qalabka iyo alaabta wax badan. Waa awood u Riiqdeediina qayilo heerkulka sare ee caadiga ah iyo goobaha xoqe. daawaha waxa uu leeyahay guri ay sabab u tahay jiritaanka chromium, kuwaas oo foomamka on dusha sare ee maqaalka xabagta filim ka ilaaliya. Waxay midabeeyo daawaha ee midabka madow. Haddii aad ka saarto (by tallaabo farsamo) lakabka oxidized, isbedel towns in cirro a anfac badan.

daawaha binary Y lahayn guryaha magnetic, beddelka multicomponent laga yaabaa in la dhimay koobin. aarayo Nichrome waa ductility Patriots iyo wanaag. Wire waxaa soo saaray qaybta ka duwan 0.01 ilaa 10 mm. Tilmaamo Muhiim ah waxaa ka mid ah:

• resistivity korontada - OM`m 1100-1400;
• barta barafku in 1400 digrii (kala duwan oo ka shaqeeya - 800-1100 degrees Celsius),
• cufnaanta - 8200-8500 kg / m ^3;
• xoog - 650-700 MPA.

guryaha Waxyaabaha la kulmo shuruudaha farsamada ugu sareeya.

faa'iidooyinka

baahida Tall oo xoog leh oo ah qaybaha ka daawaha Nichrome waxaa sabab u ah tayada la yaab leh:

• ma ku xiran daxalka,
• miisaanka yar yahay;
• fududahay in geedi socodka (si fudud ku tuntay iyo welded);
• Waxay leedahay iska caabin kuleyl aad u sareeya,
• raagaya iyo dabacsan waqti isku mid ah;
• lagu gartaa iska caabin ah kor u deegaanno dagaal;
• Waxay leedahay nolol dheer.

Faa'iidada kale muhiim u tahay iska caabin sare in hadda korontada. In dhaqanka, dhimaya tani waxay u oggolaanaysaa ka yar Nichrome (Nichrome dari dhererka gaaban) si ay u helaan kulayl badan by, tusaale ahaan, xubin birta. Taa baddalkeeda, qadar yar ee biraha loo yareeyo kartaa miisaanka iyo size of hay'adaha oo dhan. Faa'iidada ugu weyn ee nichrome - isku-dar ah oo dhan of tubta kuwaas oo in wax la mid ah.

noocyada

aarayo Nichrome waxaa la samayn karaa ee beddelka kala duwan ee daawaha oo ka mid noqon dhumucdiisuna kala duwan. Gargaarka way kala duwan yihiin in ay ka kooban oo u qaybsan yihiin (keeneysa la) saddex kooxood oo waaweyn:

• Resistor: H20N80 (20% chromium, 80% nickel); H20N73YUM-VI (20% chromium, 73% nickel, 3% aluminium, 1.5% molybdenum, ilaa 0.3% manganese, ilaa 0.05% titanium, 2% bir ah, ilaa 0.05% carbon , habka induction vacuum dhalaalay).
• Si loo isticmaalo marka heerkulku kor 900 digrii.
• Waayo, xubno ka kululaynta caabiga kordhay in heerkulka sare: HN70YU-H (27% chromium, 70% nickel, 3% aluminium, ilaa 0.3% manganese, ilaa 0,03% of cesium, iyo 0.1% oo ah barium iyo 1, 5% bir ah, ilaa 0.1% carbon).

On the Joogaba, ee qaybaha dastuurka, sifooyinka daawaha ku xiran tahay. Tiro badan oo chromium ka hortagtaa lagu qayilo.

baaxadda

Waxaa ka mid ah waxyaabaha ugu badan ka doondooneen ka dib markii nichrome silig la xidhiidha suuqa alaabta korontada. Galool ee daawaha this waxaa loo isticmaalaa in lagu daydo badan ee kululeeyayaasha korontada. saanacyadii uu guriga ku isticmaalo for:

• qalab qoryo ololaya,
• Foornooyinka oo macmal ah, waayo, rasaas dhoobada,
• qalabka kululaynta deg deg ah oo macdanaha qaarkood smithy ah;
• soo saara kululaynta naqshado fudud ( "riyaha");
• alxanle oo macmal ah.

Isticmaalka warshadaha ee chromium nickel in qalabka guriga ballaaran: qalajiya timaha, birta, kululeeyayaasha, birta, kabida, korontada iyo wixii la mid ah. Wire la a cross-qaybta weyn loo isticmaalo codsiyada alxanka automatic. daawaha noocan oo kale ah waxaa laga heli karaa qalab shaybaar oo beerta electronic. silig Nichrome waxaa loo isticmaalaa meesha looga baahan yahay in ay iska caabin ah heerkulka sare iyo deegaanno xoqe.