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Guriga> Alaabta> Nadiifinta Sare ee Alumina Ceramic> Keel dhoobada Alumina waara ee loogu talagalay Xallinta Injineerinka
Keel dhoobada Alumina waara ee loogu talagalay Xallinta Injineerinka
Keel dhoobada Alumina waara ee loogu talagalay Xallinta Injineerinka
Keel dhoobada Alumina waara ee loogu talagalay Xallinta Injineerinka

Keel dhoobada Alumina waara ee loogu talagalay Xallinta Injineerinka

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Nadiifinta sare ee alumina ceramic keels : Qalabka ugu fiican ee codsiyada warshadaha. Alumina feeraha dhoobada, ulaha alumina, iyo ceramics alumina warshadaha waa qaybo lagama maarmaanka ah wax soo saarka sare iyo beeraha injineernimada. Ulaha dhoobada ah ee nadiifka ah ayaa si fiican u shaqeeya jawi adag, halka alaabta dhaqameedku ay ku fashilmi karaan xaaladahan oo kale. Iyaga oo leh awood farsamo oo aad u fiican, xasilloonida kulaylka, iyo caabbinta kiimikada, waxaa si ballaaran loogu isticmaalaa warshado kala duwan. Haddii aad raadinayso qalab raagaya codsiyada warshadaha ama qaybaha saxda ah ee mishiinada khaaska ah, ulaha dhoobada ah waxay ku siin karaan xalal lagu kalsoonaan karo oo dheer. Dulmarka sare ee ulaha dhoobada alumina ee nadiifka ah waxay muujinayaan sifooyinkooda gaarka ah, iyaga oo ka dhigaya doorasho ku habboon jawi heerkul sare ah iyo goobo wasakh ah. Alaabtan waxaa lagu soo saaray iyadoo la adeegsanayo tignoolajiyada horumarsan si loo hubiyo nadiifnimada sare, caadi ahaan ka badan 99.5%, taasoo kor u qaadaysa awooddeeda qaabdhismeed iyo waxqabadkeeda. Alumina ceramic feeraha waxaa loogu talagalay in lagu ilaaliyo cabbirada saxda ah ee joogtada ah, taasoo ka dhigaysa inay ku habboon yihiin codsiyada saxda ah. Ulaha aluminiumka ah ee nadiifka ah ayaa lagu yaqaanaa porosity-ga hooseeya iyo cufnaanta sare, taas oo ka dhigaysa kuwo aad u adkaysta oo waara. dhoobada alumina ee warshadaha ayaa si weyn loo doortay sababtoo ah awoodda ay u leeyihiin in ay sii wadaan waxqabadka muddo dheer iyada oo aan hoos loo dhigin xaalado aad u daran. Tilmaamaha muhiimka ah ee alaabtan waxaa ka mid ah dahaarka korantada oo aad u fiican, qallafsanaan sare, iyo oxidation iyo caabbinta daxalka. Dhaqan la'aanteedu waxay ka dhigaysaa mid ku habboon nidaamyada korantada iyo korantada. Heerarka kulaylka sare ee ceramics waxay hubisaa daadinta kulaylka hufan waxayna ka hortagtaa kulaylka codsiyada muhiimka ah. Daawaynta dusha sare ee siman waxay hubisaa is jiid jiidka ugu yar iyo xidhashada qaybaha dhaqaaqa ama hababka silbashada. Nadiifinta sare ee ceramics-ku waxay hubisaa waxqabadka xasilloon waxayna yaraynaysaa khatarta wasakheynta ee deegaannada xasaasiga ah. Marka laga eego dhinaca sharraxaadda tifaftiran, ulaha dhoobada alumina ee nadiifka sare ah ayaa lagu soo saaray hab wanaagsan, oo ay ku jiraan isku-darka budada, qaabaynta, iyo sinterinta heerkul aad u sarreeya. Tani waxay keenaysaa qaab-dhismeed cufan, labis ah oo aan ku dhawaad ​​cillad lahayn. Qaybaha dhismaha hull dhoobada alumina waxaa si gaar ah loogu talagalay inay ku habboonaadaan qaab-dhismeedyada isku-dhafan ee adag, iyagoo siinaya taageero qaab-dhismeed iyo hawlo toosin. Ulaha aluminium ee nadiifka ah ee sarreeya ayaa lagu heli karaa cabbirro iyo qaabab kala duwan si ay u buuxiyaan shuruudaha naqshadeynta gaarka ah. ceramics alumina warshadaha sida caadiga ah loo habeeyey codsiyada gaar ah si loo hubiyo in waxqabadka ugu fiican ee xaaladaha kala duwan. Alaabooyinka dhoobada ah ayaa ah kuwo wax ku ool ah waxayna ku habboon yihiin meelo badan oo codsi ah. Goobta hawada sare, waxaa loo isticmaalaa qaybaha u baahan xoog sare iyo caabbinta kulaylka. Warshadaha elektiroonigga ah, waxaa loo isticmaalaa sida insulators iyo wax-qabadka sare ee wareegga wareegga. Goobta baabuurta, waxaa loo isticmaalaa dareemayaasha iyo qaybaha kale ee saxda ah. Warshadaha caafimaadku waxa kale oo ay ka faa'iidaystaan ​​agabkan sababtoo ah isqabqabsigooda noole iyo iska caabbinta jeermiska, oo loo isticmaalo qalabyada qalliinka iyo kuwa lagu rakibo. Intaa waxaa dheer, waxaa loo isticmaalaa qaybta tamarta ee dahaarka iyo maareynta kulaylka ee qalabka korontada. Dib u eegista isticmaalayaashu waxay xooga saarayaan isku halaynta iyo waxqabadka ulaha dhoobada alumina ee nadiifka ah. Isticmaalayaal badan ayaa ammaana awoodda ay u leeyihiin inay ilaaliyaan waxqabadka xasilloon xitaa xaaladaha adag. Alumina dhoobada dhoobada ayaa si weyn loogu ammaanay saxnimadooda iyo adkeysiga deegaanka warshadaha. Macaamiisha isticmaalaya khadadka wax soo saarka aluminium-nadiifinta sare waxay qadariyaan adeeggooda dheer iyo tayada xasilloon. Alaabooyinka dhoobada alumina ee warshadaha ayaa inta badan lagula talinayaa codsiyada u baahan nadiifnimo sare iyo xasilooni. Guud ahaan, isticmaalayaashu waxay u tixgeliyaan alaabtan inay leeyihiin faa'iidooyin kharash-ool ah marka la barbar dhigo beddelka beddelka ee suurtagalka ah. Su'aalaha caanka ah ee ku saabsan alaabtan waxaa ka mid ah heerkulka ugu sarreeya ee hawlgalka, ku habboonaanta kiimikooyinka kala duwan, iyo helitaanka cabbirrada gaarka ah. Ulaha dhoobada aluminium ee nadiifka ah ee sarreeya waxay ku shaqeyn karaan heerkul ilaa 1600 ° C, taas oo ku xidhan habka gaarka ah. Waxay iska caabin karaan inta badan aashitada iyo saldhigyada waxayna ku habboon yihiin bay'adaha wax soo saarka kiimikada. Cabbirrada gaarka ah iyo qaababka ayaa la bixin karaa si loo daboolo baahida gaarka ah ee xalalka la habeeyey. Isticmaalayaasha ayaa sidoo kale wax ka waydiiyay ku habboonaanta habaynta iyo rakibidda. Dad badan ayaa sheegay in walxahan lagu farsamayn karo iyadoo la isticmaalayo qalab caadi ah oo leh qalab ku habboon. Marka la soo koobo, ulaha dhoobada alumina ee nadiifka sare leh, feeraha dhoobada alumina, ulaha alumina ee nadiifka ah, iyo dhoobada alumina ee warshadaha ayaa ah agab lagama maarmaanka u ah wax soo saarka casriga ah. Waxay leeyihiin xoog, adkeysi, iyo karti ay ugu adkeystaan ​​xaaladaha ba'an, sidaas darteed waxay noqonayaan agabka la doorbido ee injineerada iyo soosaarayaasha adduunka oo dhan.
keel

ALUMINA TECH DATA

ITEM

UNIT

99.9 ALUMINA

Density

G/cm3

3.94

Bending Resistance

Mpa

500

Compressive Strength

Mpa

3300

Elasticity Modulus

Gpa

400

Shock Strength

Mpam/2

5.2

Vaporization Coefficient

M

12

Vickers Hardness

HV0.5

2000

Thermal Expansivity

10-6K-1

8.0

Conductivity

W/MK

28

Thermal Shock Resistance

AT℃

280

Maximum Service Temperature

1750

20℃ Volume Resistance

Ω

≥1015

Dielectric Strength

KV/mm

30

Apparent Porosity

0

Permittivity

Er

10

Dielectric Loss Angle

tanδ

0.001

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