Nichrome zononoka: zvivako uye kushandisa

upenyu Modern hazvibviri kufungidzira pasina akawandisa zvakasiyana midziyo yemagetsi. Nokuti vazhinji vavo Nichrome zononoka Nde chikamu - "mwoyo" pakati mashandiro. To zvemagetsi zvokushandisa, muchina maturusi yemagetsi anoshandiswa muupenyu hwezuva nezuva uye pamwero mukuru kugadzirwa, ndizvo zvakananga novimba waya pamwe yepakutanga chiwanikwa.

tsananguro

Muna 1905, musayendisiti American Albert Marsh sezvaari chokubatanidza chromium uye nickel. The patented payakavakirwa sezvinotevera 20% chromium uye 80% nickel. The chiwanikwa ainzi - nichrome. Pakutanga, hapana ligation (refractory okunze) muna musanganiswa uye yaiva maviri-chikamu chiwanikwa. Nhasi zvinoita kuwana dzakasiyana aine nickel zviri 55% uye chromium 15%. Tsvina esimbi, nesilicon, manganese, aruminiyamu, titanium, molybdenum, nesilicon. Kune zvinopfuura gumi "Quick" simbi kuwa pasi pakunzi nichrome.

Nichrome zononoka yakaruma chaizvo mukuru resistivity razova chinhu chakafanira zvekushandisa zhinji uye zviridzwa. It anokwanisa withstanding yakakwirira tembiricha oxidation chaiye uye kungatikanganisa runyararo. chiwanikwa ichi ane pfuma nokuda pamberi chromium, iyo inowanikwa pamusoro pemvura nyaya rwokudzivirira oxide firimu. Anozodza wacho chiwanikwa ari ruvara rima. Kana ukabvisa (by zvokuimba chiito) oxidized layer tint kuchinja kuti whitish pfumbu.

Y binary chiwanikwa hapana rinobva ehupfumi, multicomponent okunatsiridza anogona attenuated parameters. Nichrome zononoka haina kuenzana uye wakanaka ductility. Wire iri kugadzirwa ane chikamu chakasiyana 0.01 10 mm. Key zvinhu zvinosanganisira:

• zvemagetsi resistivity - OM`m 1100-1400;
• utsotso anongedze 1400 madhigirii (kushanda Range - 800-1100 Celsius);
• arambe achirema - 8200-8500 makirogiramu / m ^3;
• simba - 650-700 MPa.

Material ehupfumi kusangana chemhando kwesayenzi zvinodiwa.

zvakwakanakira

Kureba uye simba kudiwa zvinoumba kubva Nichrome chiwanikwa imhaka zvinoshamisa unhu:

• kwete pasi ngura;
• pasi uremu;
• nyore muitiro (nyore ndokutsika uye welded);
• Rine mukuru kupisa kuramba;
• Zvinokosha zvakaisvonaka uye kusanduka panguva;
• dzinoratidzwa yakawedzera nemishonga kuti hasha runyararo;
• It ane refu upenyu basa.

Chimwe chakanakira chinokosha yakakwirira nemishonga nemagetsi. In tsika, parameter ichi rinobvumira vashoma Nichrome (Nichrome zononoka mapfupi urefu) kugamuchira zvakawanda kupisa kupfuura, somuenzaniso, kuti simbi nhengo. Uyewo, mumwe uwandu nesimbi duku kunogona kuderedza uremu uye kukura yose midziyo. The chikuru mukana nichrome - mubatanidzwa zvose metrics ava chete zvinhu.

mhando

Nichrome zononoka zvinogona kuitwa okunatsiridza siyana pamusoro chiwanikwa uye kuva zvakasiyana ukobvu. Stamps akasiyana mune sezvamunoita dzavo uye vakakamurwa (conditionally) mumapoka makuru matatu:

• Resistor: H20N80 (20% chromium, 80% nickel); H20N73YUM-VI (20% chromium, 73% nickel, 3% aruminiyamu, 1,5% molybdenum, kusvikira 0.3% manganese, kusvikira 0,05% titanium, 2% simbi, kusvikira 0,05% kabhoni , akanyauka Vacuum induction nzira).
• Nokuti kushandiswa pane kutonhora pamusoro 900. inegumi.
• Nokuti kudziyisa zvinhu pamwe zvakawedzera nemishonga yakakwirira tembiricha: HN70YU-H (27% chromium, 70% nickel, 3% aruminiyamu, kusvikira 0.3% manganese, kusvikira 0,03% kubva necesium, uye 0.1% kubva barium uye 1, 5% simbi, kusvikira 0.1% kabhoni).

On kukura kwayo constituent zvinoriumba, zvivako zviri chiwanikwa kuvimba. A dzakawanda chromium kunodzivisa oxidation.

kukura

Rinonyanya vakatsvaka nichrome waya zvinhu chokuita nemagetsi zvigadzirwa kumusika. Helix pamusoro chiwanikwa ichi rinoshandiswa zhinji yokutevedzera pamusoro dzemagetsi Heaters. mhizha kurishandisa kumba kuti:

• midziyo kutsva huni;
• Homemade yamavira nokuti vachiridzira Ceramics;
• nokukurumidza kudziyisa mano dzimwe simbi iri smithy;
• unobereka kudziyisa nyore mazano ( "mbudzi");
• Homemade welders.

Kushandiswa maindasitiri ose nickel chromium weimba midziyo yemagetsi zvikuru: bvudzi dryers, simbi, Heaters, pokunamatidza simbi, yemagetsi uye zvichingodaro. Wire huru muchinjikwa-chikamu rinoshandiswa kuti zvaitika nomoto zvikumbiro. Akadaro chiwanikwa anogona kuwanikwa murabhoritari michina uye zvemagetsi munda. Nichrome waya rinoshandiswa apo waida kuramba yakakwirira tembiricha kungatikanganisa runyararo.