molybdenum U-dimbin dumama waya
Zaɓin mafi kyawun waya don kayan dumama ya dogara da takamaiman bukatun aikace-aikacen. Koyaya, wasu kayan gama gari da ake amfani da su don abubuwan dumama sun haɗa da:
1. Nickel-chromium alloy: Nickel-chromium alloy ana amfani dashi sosai a cikin abubuwan dumama saboda yawan juriya, juriya mai kyau na iskar shaka, da juriya mai zafi. Yawanci ana amfani da su a cikin kayan aikin gida kamar su toasters, bushewar gashi, da tanda.
2. Kanthal: Kanthal shine ƙarfe-chromium-aluminum alloy wanda aka sani da ƙarfin zafin jiki, kyakkyawan juriya na iskar shaka, da kuma tsawon rayuwar sabis. Ana amfani da shi a aikace-aikacen dumama masana'antu kamar kilns, murhu da tanda na masana'antu.
3. Tungsten: An san shi don madaidaicin ma'anar narkewa, ana amfani da tungsten a cikin aikace-aikacen da ke buƙatar yanayin zafi sosai, irin su tanda mai zafi da kuma tsarin masana'antu na musamman.
4. Molybdenum: Molybdenum wani abu ne tare da babban ma'aunin narkewa da kuma juriya mai kyau ga lalata da oxidation, yana sa ya dace da yanayin zafi mai zafi a cikin aikace-aikace na musamman.
Mafi kyawun waya don nau'in dumama ya dogara da dalilai kamar yanayin zafin aiki da ake so, yanayin da za a yi amfani da shi, da takamaiman buƙatun dumama na aikace-aikacen. Kowane abu yana da nasa fa'ida da iyakancewa, don haka zaɓin ya kamata ya dogara ne akan takamaiman buƙatun abin da ake nufi da amfani da dumama.
Ana ɗaukar Molybdenum a matsayin jagorar zafi mai kyau, kodayake baya gudanar da zafi sosai kamar sauran karafa kamar jan karfe ko aluminum. Thermal conductivity na molybdenum a dakin da zafin jiki ne game da 138 W / m · K, wanda shi ne kasa da jan karfe (kimanin 401 W / m · K) da aluminum (kimanin 237 W / m · K).
Duk da haka, molybdenum's thermal conductivity har yanzu yana da inganci idan aka kwatanta da sauran kayan da yawa, musamman a yanayin zafi. Wannan ya sa molybdenum ya zama zaɓin da ya dace don aikace-aikacen da ke buƙatar canja wurin zafi mai zafi, kamar abubuwan dumama, tanda mai zafi da sauran tsarin kula da thermal.
Bugu da ƙari ga haɓakar zafin jiki, molybdenum yana da wasu kaddarorin masu mahimmanci irin su babban ma'aunin narkewa, juriya ga oxidation, da ƙarfin injiniya mai kyau a yanayin zafi, yana mai da shi kayan aiki mai mahimmanci don aikace-aikace masu zafi daban-daban.
Molybdenum sau da yawa zafi ana kula da shi don inganta kayan aikin injinsa da sauke damuwa na ciki. Tsarin kula da zafi don molybdenum yawanci ya haɗa da annealing, tsarin dumama mai sarrafawa da sanyaya. Takamaiman matakan maganin zafi don molybdenum na iya haɗawa da:
1. Annealing: Molybdenum yawanci ana goge shi a yanayin zafi mai zafi, yawanci a cikin kewayon 1,800 zuwa 2,200 digiri Celsius (3,272 zuwa 3,992 digiri Fahrenheit). Ana gudanar da kayan a wannan zafin jiki don wani lokaci na musamman don ba da damar recrystallization da ci gaban hatsi, wanda ke taimakawa wajen rage damuwa na ciki da inganta ductility.
2. Sarrafa sanyaya mai sarrafawa: Bayan aikin cirewa, molybdenum yana kwantar da hankali a hankali zuwa dakin da zafin jiki a cikin tsari mai sarrafawa don hana samuwar sababbin damuwa na ciki da kuma kula da microstructure da ake so.
Ƙayyadaddun ƙayyadaddun ƙayyadaddun tsarin aikin zafi, ciki har da zafin jiki, tsawon lokaci da yawan sanyaya, an ƙaddara bisa ga kayan aikin injiniya da ake buƙata da takamaiman bukatun aikace-aikacen.
Gabaɗaya, kula da zafi na molybdenum yana da niyyar haɓaka ƙirar microstructure da kaddarorin injin don tabbatar da dacewarsa don aikace-aikacen zafin jiki mai ƙarfi kamar samar da abubuwan dumama, abubuwan tanderu da sauran kayan aikin masana'antu na musamman.
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