chidziwitso

Molybdenum discs zadzetsa chidwi chambiri kuchokera kumakampani osiyanasiyana potengera mikhalidwe yawo yapadera komanso kuthekera kwawo. Molybdenum ndi njira yofunikira pamapulogalamu ambiri chifukwa cha zabwino zake zomveka bwino pama diski ena achitsulo. Kugawikana kwakukulu pakati pa ma disks a molybdenum ndi ma diski ena achitsulo kudzayankhidwa pa positi yonseyi yabulogu, limodzi ndi zabwino ndi zovuta za chinthu chilichonse.

Ubwino wogwiritsa ntchito ma disc a molybdenum kuposa ma disc achitsulo ndi chiyani?

Molybdenum discs kupereka ubwino angapo pa zimbale zitsulo, kuwapanga iwo kusankha wapamwamba ntchito zambiri. Ubwino umodzi wofunikira kwambiri ndi kukana kwawo kutentha kwapadera. Molybdenum ili ndi malo osungunuka kwambiri (2,623 ° C kapena 4,753 ° F) poyerekeza ndi chitsulo (nthawi zambiri mozungulira 1,370-1,530 ° C kapena 2,500-2,786 ° F), kulola kuti likhalebe kukhulupirika ndi ntchito pa kutentha kwambiri. Katunduyu amapangitsa ma disc a molybdenum kukhala abwino kuti agwiritsidwe ntchito m'malo otentha kwambiri, monga ng'anjo, ma injini a rocket, ndi zida zanyukiliya.

Ubwino wina wa ma disc a molybdenum pazitsulo zachitsulo ndi kuchuluka kwawo kwamphamvu ndi kulemera. Molybdenum ndi pafupifupi 10% yopepuka kuposa chitsulo koma imapereka mphamvu zofananira kapena zapamwamba, kutengera kapangidwe ka aloyi. Izi zimapangitsa ma disc a molybdenum kukhala chisankho chabwino kwambiri pakugwiritsa ntchito komwe kuchepetsa kulemera ndikofunikira, monga mafakitale apamlengalenga ndi magalimoto.

Ma disks a Molybdenum amawonetsanso kukana kwa dzimbiri, makamaka pakuchepetsa malo komanso ma acid omwe si oxidizing. Katunduyu amawapatsa mwayi wopitilira ma discs achitsulo pamagwiritsidwe okhudzana ndi madera ovuta a mankhwala kapena zoikamo zam'madzi. Kuonjezera apo, molybdenum ili ndi mphamvu yocheperapo yowonjezera kutentha poyerekeza ndi chitsulo, zomwe zikutanthauza kuti imasinthasintha pang'ono pamene kutentha kumasintha. Kukhazikika uku ndikofunika makamaka muukadaulo wolondola komanso wowoneka bwino.

Kuphatikiza apo, ma disc a molybdenum amapereka kukana kwamphamvu kwambiri poyerekeza ndi ma disc achitsulo. Kulimba kwa zinthuzo komanso kugundana kocheperako kumathandizira kuti zisawonongeke komanso kusungika mawonekedwe ake pakagwiritsidwa ntchito nthawi yayitali. Kukhazikika uku kumapangitsa ma disc a molybdenum kukhala chisankho chabwino kwambiri chodulira zida, zida zobvala, ndi ntchito zina zopsinjika kwambiri.

Komabe, ndikofunikira kuzindikira kuti ma disc a molybdenum ali ndi zofooka zina poyerekeza ndi ma disc achitsulo. Nthawi zambiri amakhala okwera mtengo chifukwa chosowa molybdenum komanso zovuta zake. Kuphatikiza apo, molybdenum imatha kukhala yovuta kwambiri pamakina ndi mawonekedwe kuposa chitsulo, zomwe zitha kukulitsa mtengo wopanga. Ngakhale zovuta izi, mawonekedwe apadera a molybdenum nthawi zambiri amavomereza kugwiritsidwa ntchito kwake m'mapulogalamu apadera pomwe zofunikira zogwirira ntchito zimaposa mtengo.

Kodi ma disc a molybdenum amagwira ntchito bwanji pakutentha kwambiri poyerekeza ndi ma disc ena achitsulo?

Ma disks a Molybdenum amapambana pakutentha kwambiri, kupitilira ma disc ena ambiri azitsulo pakatentha kwambiri. Kutentha kwapadera kwa molybdenum ndi chimodzi mwazinthu zake zamtengo wapatali, zomwe zimapangitsa kukhala chisankho chokondedwa kwa mafakitale omwe amagwira ntchito ndi kutentha kwambiri. Tiyeni tiwone momwe ma disc a molybdenum amafananizira ndi ma disc ena azitsulo m'malo ovutawa.

Poyerekeza ndi zitsulo zomwe zimatentha kwambiri monga nickel-based superalloys, tungsten, kapena tantalum, ma molybdenum discs nthawi zambiri amapereka kuphatikiza kwapadera kwa zinthu zomwe zimawapangitsa kukhala abwino kwa ntchito zinazake zotentha kwambiri. Molybdenum imasungabe mphamvu ndi kukhazikika kwake pakutentha kokwera bwino kuposa zitsulo zina zambiri. Mwachitsanzo, pamene ma superalloys opangidwa ndi faifi tambala amayamba kutaya mphamvu zawo kuposa 1000°C (1832°F), molybdenum imakhalabe ndi mphamvu zambiri mpaka kutentha kumayandikira 2623°C (4753°F).

Pankhani ya matenthedwe conductivity, ma disks a molybdenum komanso kuchita bwino kwambiri. Amakhala ndi matenthedwe apamwamba kwambiri kuposa zitsulo zina zambiri zotentha kwambiri, kuphatikiza tungsten ndi tantalum. Katunduyu amalola kutengera kutentha koyenera, komwe kumatha kukhala kofunikira pakugwiritsa ntchito ngati zishango za kutentha, zida za ng'anjo, kapena makina owongolera matenthedwe muzamlengalenga.

Molybdenum's low coefficient of thermal expansion ndi mwayi wina pakugwiritsa ntchito kutentha kwambiri. Katunduyu amatanthauza kuti ma disc a molybdenum amasinthasintha pang'ono akatenthedwa, kusunga mawonekedwe awo ndi kukhulupirika kwawo kuposa zitsulo zina zambiri. Kukhazikika kumeneku ndikofunikira kwambiri pamapulogalamu omwe amafunikira kuwongolera kolondola, monga makampani opangira zida zopangira zida zamagetsi kapena mitundu ina ya zida zasayansi.

Komabe, ndikofunikira kudziwa kuti molybdenum ili ndi malire ake pakutentha kwambiri: kutengeka kwake ndi okosijeni. M'malo okhala ndi okosijeni wambiri kutentha kwambiri, molybdenum imatha kutulutsa okosijeni mwachangu, ndikupanga ma okosidi osasunthika omwe angayambitse kutaya zinthu. Nkhaniyi sidziwika kwambiri ndi zitsulo zina zotentha kwambiri monga tungsten kapena ma superalloys ena. Pofuna kuthetsa vutoli, ma disc a molybdenum nthawi zambiri amagwiritsidwa ntchito m'malo opanda mpweya kapena mpweya wa inert, kapena amakutidwa ndi zinthu zoteteza akagwiritsidwa ntchito mu oxidizing atmospheres.

Ngakhale izi ndizochepa, ma disks a molybdenum amagwiritsidwabe ntchito kwambiri m'mapulogalamu osiyanasiyana otentha chifukwa cha kuphatikiza kwawo kwapadera. Amagwiritsidwa ntchito kwambiri potenthetsera ng'anjo, ma elekitirodi osungunula magalasi, zida za injini ya roketi, ndi zida zotentha kwambiri m'mafakitale apamlengalenga ndi nyukiliya. Zambiri mwazinthuzi, ubwino wa molybdenum umaposa kutengeka kwake kwa okosijeni, makamaka pamene njira zoyenera zichitidwa pofuna kuteteza zinthuzo.

Kodi pali kusiyana kotani pakati pa ma disc a molybdenum ndi ma disc ena azitsulo?

Mtengo wa ma disks a molybdenum poyerekeza ndi zimbale zina zitsulo ndi yofunika kuganizira ambiri mafakitale ndi ntchito. Nthawi zambiri, ma disc a molybdenum ndi okwera mtengo kuposa ma disc opangidwa kuchokera kuzitsulo wamba monga chitsulo kapena aluminiyamu. Komabe, kuyerekeza kwamitengo kumakhala kovuta kwambiri poganizira zazitsulo zogwira ntchito kwambiri zomwe zimagwiritsidwa ntchito mwapadera.

Molybdenum ndi chitsulo chosowa kwambiri, chomwe chimathandizira kwambiri pamtengo wake wokwera. Kukumba ndi kukonza molybdenum ndizovuta komanso zokwera mtengo poyerekeza ndi zitsulo zambiri monga chitsulo kapena aluminiyamu. Pofika 2021, mtengo wa molybdenum unali pafupifupi $20-30 pa kilogalamu, pomwe chitsulo nthawi zambiri chimawononga ndalama zosakwana $1 pa kilogalamu. Kusiyana kwakukulu kwamitengo kumeneku kumatanthauza kuti, potengera mtengo wazinthu zopangira, ma disc a molybdenum ndi okwera mtengo kwambiri kuposa ma disc achitsulo amtundu wofanana.

Komabe, poyerekezera molybdenum ndi zitsulo zina zapamwamba zomwe zimagwiritsidwa ntchito mofananamo, kusiyana kwa mtengo kungakhale kocheperako. Mwachitsanzo, tungsten, yomwe nthawi zambiri imagwiritsidwa ntchito potentha kwambiri ngati molybdenum, imatha kukhala yokwera mtengo kwambiri. Tantalum, chitsulo china chosakanizika chokhala ndi kutentha kwambiri, nthawi zambiri chimakhala chokwera mtengo kuposa molybdenum. Zitsulo zamtengo wapatali monga platinamu kapena golide, zomwe nthawi zina zimagwiritsidwa ntchito mwapadera chifukwa cha mawonekedwe ake apadera, ndizokwera mtengo kwambiri kuposa molybdenum.

Ndikofunikira kulingalira kuti mtengo woyamba wa zinthuzo sizomwe zimatsimikizira momwe chuma chikuyendera posankha ma disc a molybdenum. Makhalidwe apamwamba a molybdenum, monga kukana kwake kutentha kwambiri, mphamvu, ndi kukana kuvala, kungayambitse nthawi yayitali ya moyo ndi kuchepetsa kukonza kapena kubwezeretsa ndalama. M'malo otentha kwambiri kapena ovala kwambiri, kutalika kwa zigawo za molybdenum kungathe kuchepetsa mtengo wawo woyamba, zomwe zingathe kupangitsa kuti zikhale zotsika mtengo pakapita nthawi poyerekeza ndi zipangizo zotsika mtengo zomwe zimafuna kusinthidwa pafupipafupi.

Ndalama zopangira zinthu zimathandiziranso kuwononga ndalama zonse za ma disc a molybdenum. Molybdenum imatha kukhala yovuta kwambiri pamakina ndi kupanga kuposa zitsulo zina, zomwe zitha kukulitsa mtengo wopanga. Komabe, kupita patsogolo kwaukadaulo wopanga, monga zitsulo za ufa ndi zopangira zowonjezera, zikupangitsa kuti zikhale zosavuta komanso zotsika mtengo kupanga zida zovuta za molybdenum.

Powunika momwe ma disks a molybdenum amagwirira ntchito, ndikofunikira kulingalira za kagwiritsidwe ntchito kake komanso zofunikira. Muzinthu zambiri zogwira ntchito kwambiri, mawonekedwe apadera a molybdenum amatsimikizira mtengo wake wokwera. Mwachitsanzo, muzamlengalenga kapena zida za nyukiliya pomwe kulephera sikungatheke, kudalirika ndi magwiridwe antchito a molybdenum kungapangitse kuti ikhale yotsika mtengo kwambiri ngakhale ili ndi mtengo wokwera kwambiri.

Pomaliza, nthawi ma disks a molybdenum nthawi zambiri amakhala okwera mtengo kuposa ma disc opangidwa kuchokera kuzitsulo wamba, mawonekedwe awo apadera ndi mawonekedwe ake nthawi zambiri amavomereza kukwera mtengo kwazinthu zapadera. Poyerekeza ndi zitsulo zina zogwira ntchito kwambiri, kusiyana kwa mtengo kungakhale kochepa kwambiri, ndipo phindu lachuma la nthawi yayitali la kugwiritsa ntchito molybdenum likhoza kupitirira mtengo wake woyamba. Monga momwe zilili ndi njira iliyonse yosankha zinthu, kusanthula mozama za phindu la mtengo woganizira mbali zonse za ntchitoyo n'kofunika kwambiri kuti mudziwe ngati ma disc a molybdenum ndi okwera mtengo kwambiri.

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Zothandizira

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