Alloys Magnesium, codsiga, qoondaynta iyo hantida

Alloys Magnesium leeyihiin tiro ka mid ah sifooyin u gaar ah jirka iyo kiimikada, oo madax ka mid ah kuwaas oo cufnaanta hooseeyo iyo xoog sare. Isku sifooyinkaa in qalabka la sii dheer ee magnesium ogolaanaya wax soo saarka iyo dhismaha Haysashada sare xoog sifooyinka iyo Hoosaynta miisaanka ilmaha.

sooc magnesium

wax soo saarka warshadaha iyo isticmaalka magnesium waa xad dhow - oo kaliya oo ku saabsan 100 sano ka hor. biraha waxa uu leeyahay miisaan yar, sababta oo ah waxa uu leeyahay cufnaanta a yar (1.74 g / smᶟ), xasiloonida wanaagsan hawada, alkalis, warbaahinta gaseous la content fluorine in saliidaha macdanta ah.

barta barafku waa 650 digrii. Waxaa lagu gartaa falcelin sare ilaa sari lama filaan ah hawada. Saafi ah xoog siligga magnesium waa 190 MPA, modulus of barti - 4500 MPA, muruqa - 18%. Birta leeyahay awood sare Esplanaden (wax ku ool ah nuuga vibrations laastikada) in waxa uu siiyaa la karo heer sare ah iyo dareen lama filaan ah hoos u resonance ifafaale.

Waxaa ka mid ah qaababka kale ee element this yihiin conductivity kaamerada wanaagsan, awoodda yar si uu u nuugo neutrons kaamerada iyo falgalaan shidaalka nuclear. Maaddaama ay isku dhafan oo ka mid ah sifooyinka magnesium waa wax fiican-heerkulka sare xubno qolof hermetic of tigoodu nuclear.

Magnesium iyo sidoo alloyed la Biraha kala duwan oo la xidhiidha tirada wakiilada yaraynta xoog leh, oo waa wax aan macquul aan nidaamka metallothermy.

In foomka saafi ah inta badan waxaa loo isticmaalaa sida dopant ee Alloys la aluminium, titanium, iyo qaar ka mid ah xubno ka kiimikada kale. In ka bir iyo bir la magnesium waxaa lagu fuliyaa desulfurization qoto dheer oo bir iyo bir, iyo sidoo kale guryaha hagaagtay doonana taasi oo ka nodularity.

Magnesium iyo dopants

The dopants ugu badan codsatay in Alloys magnesium ku salaysan waxaa ka mid ah xubno sida aluminium, manganese iyo zinc. aluminium waa wanaajiyey by qaab u siyaadiyaa isbeddello iyo xoog mid ah waxyaabaha la. Hordhac Zinc kale oo ay bixisaa Alloys more raagaya la size hadhuudh la dhimay. Isticmaalka manganese ama zirconium kordhisaa iska caabin ah daxalka ee Alloys magnesium ah.

Intaa waxaa dheer ee zinc iyo zirconium bixisaa xoog kordha iyo metallosmesey ductility. Oo jiritaanka qaar dhif ah dhulka xubno sida neodymium, cerium, yttrium iyo si bixi., Kor u muhiim ah korodhka kulaylka iska caabin ah oo loo kordhiyo si farsamaysan sifooyinka magnesium Alloys.

In la abuuro wax ultralight isagoo cufnaanta ah 1.3 si 1.6 g / ku Alloys lithium mᶟ waxaa soo bandhigay. daro Tani waxay yarayn kartaa miisaankooda by badh la metallosmesyami aluminium marka la barbar dhigo. Oo sidaasay indices plasticity, isbeddello, processability iyo barti ku yaalaan on heer sare.

Alloys Qoondaynta la magnesium

Alloys Magnesium waxaa loo kala saaraa sida uu sheegay dhowr shuruudaha. Waxay kala yihiin:

• by habka of processing - by shubay oo laga sameeyey;
• Sida laga soo xigtay heerka dareenka kulaylka daaweyn - on neuprochnyaemye iyo qalbi engegnaantooda aawadeed kulaylka daaweynta;
• The guryaha iyo codsiyada - in kulaylka u adkaysta daawaha, xoog sare iyo guud-Ujeedada;
• by daroogada habka - waxaa jira kooxo dhowr neuprochnyaemyh iyo engegin daaweyn kulaylka Alloys magnesium shaqeeyey.

Alloys shubay

Kooxdan waxaa ka mid ah dheer ee Alloys magnesium, loogu talagalay soo-saarka ee kala duwan ee qaybaha iyo xubno by shubay caaryada. Waxay leeyihiin guryaha farsamo oo kala duwan, iyada oo ku xidhan waxa loo qaybiyaa saddex darajo:

• sredneprochnye;
• xoog sare;
• kulaylka u adkaysta.

Sida ay Halabuurka kiimikada ee Alloys ayaa waxaa sidoo kale kala qaybiyey saddex kooxood:

• aluminium + magnesium + zinc,
• + Zirconium zinc + magnesium,
• Mg + Zr + cir dhif.

Daawaha castability

guryaha castability Best ka mid ah waxyaabaha ka mid ah saddex kooxood leeyihiin Alloys aluminium-magnesium. Waxay ka tirsan tahay fasalka ka mid ah maaddooyinka xoog badan (220 MPA), si ay u yihiin habka ugu fiican ee samaynta diyaarad qaybo engine iyo gaadiidka kale ee ka hawlgala xaaladaha xamuulka farsamo iyo kaamerada.

Si loo hagaajiyo xoog sifooyinka aluminium-magnesium Alloys oo kale xubno ka yahay doped. Laakiin joogitaanka nijaasta ahaa bir iyo naxaas ah waa loo baahnayn, tan iyo xubno waxay leeyihiin saamayn xun ku weldability iyo daxalka iska caabin ah Alloys ah.

Shubay magnesium Alloys diyaar ku kala duwan noocyada barafku Foornooyinka: a iftiinta, a Weelka lacagta la gaas, saliid ama korontada kulul Weelka ama induction unugyada.

Si looga hortago sari ee geedi socodka of barafku oo loo shubay la isticmaalayo gaar ah ka daadanayo oo lagu daro. Castings waxaa loo diyaariyey by shubay ciid, shubay qolof iyo malaastaan, cadaadis iyo isticmaalka qaababka maalgelinta.

Alloys sameeyey

Marka la barbar dhigo shubay, Alloys magnesium shaqeeyey leeyihiin sare xoog, ductility iyo qalleyf. Waxay waxaa loo isticmaalaa wax soo saarka ee hababka preforms diidanaa, adiga oo riixaya iyo feer. Sida alaabta daaweyn kulaylka waxaa laga codsadaa heerkulka a of 350-410 degree qalbi engegnaantooda aawadeed, raaceen by qaboojinta aan macquul ahayn oo aan gabowga.

Marka kulaylinta guryaha caag ah qalabka kor u sida, si howsha Alloys magnesium waxaa lagu fuliyaa by yahay cadaadis iyo heerkul sare. Gurdanka waxaa loo sameeyaa at 280-480 degrees cadaadis taasi oo ka dhinto xiran. Marka rogid qabow sameeyay recrystallization dhexe noqnoqda anneals.

Marka laga yaabaa in alxanka magnesium waxyaabaha daawaha xoog kama tollayn waa la dhimi on qaybaha meesha sameeyaa jelly, sababta oo ah dareenka ee qalabka sida si ay kulayl.

Meelaha codsiga by daray Alloys magnesium

Iyada oo ka mid ah hababka loo shubay, lahayo ku iyo daaweynta kulaylka of Alloys macmalay alaabooyin kala duwan semifinished - baararka, taarikada, profiles, go'yaal, forgings, iwm banaan waxaa loo isticmaalaa wax soo saarka ee xubno ka iyo faahfaahinta aaladaha farsamada casriga ah halkaas oo miisaan ciyaara a qaabab hufnaan kaalin hoose (miisaanka oo hoos), halka guryaha xoog ay. In la barbardhigo magnesium aluminium si fudud loo 1.5 jeer, iyo birta - 4.5.

Currently, isticmaalka Alloys magnesium waxaa si balaadhan looga isticmaalaa in aerospace ah, baabuurta, military iyo warshadaha kale, halkaas oo ay qiimaha sare (noocyada qaar ka mid ah waxa ku jira ee ay ka kooban xubno ka alloying qaali) inuu xaq yahay ka dhibic dhaqaale of view, awood u leeyahay inuu abuuro more raagaya, si degdeg ah, awood iyo ammaanka in qasac shaqeeyaan wax ku ool ah in xad-dhaaf ah xaaladaha, lugu daro at sare heerkulka.

Sababo la iman kara sare korontada, Alloys kuwanu waa wax fiican in la abuuro oo Awliyo ah in ay bixiyaan ilaalinta electrochemical dhismayaasha birta, sida qeybo ka baabuurta, qaab-dhismeedka dhulka hoostiisa, dhufto ee saliidda, maraakiibta, iwm, ka hababka daxalka qaadan meel sarkhaansan yihiin qoyaanka, cusub iyo badda biyo.

Alloys ayaa la isticmaalo iyadoo lagu darayo ee magnesium in nidaamka radio kala duwan, taas oo khadadka loomana baahno ka samaysan yihiin khadadka dib u dhac ultrasonic for signallo koronto.

gunaanad

meelaha warshadaha Modern sii kordheysa dalabaadka sare ee qalabka la eego xooggooda, xirtaan iska caabin ah, iska caabin ah daxalka iyo workability. Isticmaalka Alloys magnesium waa mid ka mid ah goobaha ugu wanaagsan, sidaa darteed cilmi-baarista la xiriira raadinta guryaha cusub ee magnesium iyo codsiyada ay suurto gal, ha joojin.

Currently, isticmaalka Alloys magnesium ku salaysan si ay u abuuraan kala duwan oo ka mid ah qaybaha iyo dhismayaasha gaari karaan in ay yareeyaan miisaan ku dhow 30% iyo in la kordhiyo xoog siligga 300 MPA ah, laakiin, sida ay saynisyahano, ma aha xadka ee biraha this gaar ah.