Nichrome mwauzimu: katundu ndi ntchito

moyo wamakono sikutheka kulingalira popanda nambala yaikulu zipangizo zosiyanasiyana. Kwa ambiri a iwo Nichrome mwauzimu ndi mbali yaikulu - "mtima" wa limagwirira lapansi. Kuti zipangizo zamagetsi, zipangizo za makina, zipangizo mphamvu ntchito tsiku ndi tsiku ndi kupanga zikuluzikulu, mwachindunji amadalira waya ndi aloyi pachiyambi.

mafotokozedwe

Mu 1905, American sayansi Albert Marsh anayamba kuphatikiza chromium ndi faifi tambala. Chilinganizo patenti motere 20% chromium ndi 80% faifi tambala. aloyi The dzina lake - nichrome. Poyamba, panalibe ligation (zinthu refractory) mu osakaniza ndipo anali aloyi ziwiri zikuluzikulu. Today n'zotheka kupeza mitundu ndi okhutira faifi tambala wa 55% ndi chromium 15%. Zosafunika ndi chitsulo, pakachitsulo, manganese, zotayidwa, titaniyamu, molybdenum, pakachitsulo. Pali zoposa khumi "maphikidwe" zitsulo kugwa pansi lakuti nichrome.

Nichrome mwauzimu wokhala kwambiri mkulu resistivity wakhala kofunika kwambiri chigawo chimodzi cha zida zambiri ndi zida. Iwo amatha kupirira mkulu kutentha makutidwe ndi okosijeni mu zabwinobwino komanso mapangidwe zikuwononga. aloyi uyu ali katundu chifukwa kukhalapo kwa chromium, imene imagwiritsidwa padziko nkhani ndi zoteteza okusayidi filimu. Iye akupereka kwa aloyi mu mtundu mdima. Ngati inu kuchotsa (by kanthu mawotchi) wosanjikiza oxidized, kusintha kulocha ndi imvi yochitidwa.

Y bayinare aloyi palibe katundu maginito, zosintha multicomponent akhoza attenuated magawo. Nichrome mwauzimu ndi wolimba, wabwino ductility. Waya amapangidwa ndi gawo osiyana mamilimita 0.01 10. mbali Ofunika monga:

• magetsi resistivity - OM`m 1100-1400;
• mfundo limatsogolera digiri 1400 (ntchito zosiyanasiyana - 800-1100 madigiri Celsius);
• kachulukidwe - 8200-8500 makilogalamu / mamita ^3;
• mphamvu - 650-700 MPa.

katundu chuma kukumana apamwamba amafuna sayansi.

ubwino

Wamtali ndi wamphamvu kufunika kwa zigawo zikuluzikulu kuchokera Nichrome aloyi ndi chifukwa kudabwitsa:

• kosamugonjera dzimbiri;
• wochepa thupi;
• zosavuta pothana (zosavuta stamped ndi welded);
• Iwo ali mkulu kutentha kukana;
• cholimba ndi kusintha nthawi yomweyo;
• yodziwika ndi kuchuluka kukana kuti mapangidwe aukali;
• Iwo ali moyo wautali utumiki.

Ubwino wina n'kofunika kulimbikira mkulu magetsi. Zochita chizindikiro ichi limalola ochepa Nichrome (Nichrome mwauzimu wamfupi kutalika) kulandira kutentha kuposa ndi Mwachitsanzo, membala zitsulo. Nayenso yocheperako kuchuluka kwa zitsulo akhoza kuchepetsa kulemera ndi kukula kwa zida lonse. The mwayi waukulu nichrome - osakaniza onse zokhazikitsidwa izi mu zinthu zomwezo.

mitundu

Nichrome mwauzimu akhoza kukhala ndi zosintha zosiyanasiyana aloyi ndi kukhala a makulidwe osiyana. Masitampu ali osiyana mu zikuchokera awo ndi zidzasankhidwa (salembedwa) mu magulu atatu akulu akulu:

• Resistor: H20N80 (20% chromium, 80% faifi tambala); H20N73YUM-VI (20% chromium 73% faifi tambala, 3% zotayidwa, 1.5% molybdenum, mpaka 0,3% manganese, mpaka 0,05% titaniyamu, 2% chitsulo, mpaka 0,05% mpweya Unasungunulanso zingalowe njira kupatsidwa ulemu).
• Ntchito pa kutentha pamwamba madigiri 900.
• Pakuti zinthu Kutentha ndi kuchuluka kukana kuti kutentha: HN70YU-H (27% chromium, 70% faifi tambala, 3% zotayidwa, mpaka 0,3% manganese, mpaka 0,03% ya cesium, ndi 0.1% ya barium 1, 5% chitsulo, mpaka 0.1% mpweya).

Pa kufanana zigawo zake constituent, katundu wa aloyi zimadalira. A ambiri chromium chindiletsa makutidwe ndi okosijeni.

Mbali

Anthu ambiri amafuna chuma nichrome waya anafotokoza mankhwala msika magetsi. Helix wa aloyi ichi ntchito zitsanzo zambiri za heaters magetsi. amisiri ntchito kunyumba:

• zida moto nkhuni;
• ng'anjo amamwa kwa kuwombera ziwiya zadothi;
• mofulumira Kutentha zipangizo zitsulo zina smithy ya;
• popanga magetsi ziwembu losavuta ( "mbuzi");
• amamwa owotcherera.

The ntchito mafakitale chromium faifi tambala mu zipangizo banja ambiri: dryers tsitsi, zitsulo, heaters, soldering zitsulo, magetsi ndi zina zotero. Waya ndi lalikulu-gawo mtanda ntchito ntchito zodziwikiratu kuwotcherera. Chotero aloyi ndi angapezeke mu zipangizo zasayansi ndi munda amagetsi. Nichrome waya ntchito kumene chofunika kukana kuti kutentha ndi mapangidwe zikuwononga.