1. Halayen Material da Tsarin Tsari
1.1 Haɗin kai da Matakan Crystalline na Alumina
( Alumina Ceramic Tubes)
Alumina (Al Biyu O BIYU) Tumburan yumbu da farko an yi su ne daga aluminum oxide mai tsafta, tare da matakan tsarki yawanci bambanta daga 90% ku 99.8%, dangane da aikace-aikacen da ake so.
A rinjaye crystalline lokaci a gaba daya lokacin farin ciki, manyan zafin jiki sintered bututu ne α-alumina (lu'u-lu'u), wanda ke nuna tsarin kristal trigonal da ingantaccen kwanciyar hankali na thermodynamic.
Wannan lokaci yana canzawa daga precursor hydroxides (misali, boehmite ko gibbsite) to α-alumina faruwa a kan 1100 ° C kuma yana haifar da kauri, interlocking microstructure wanda ke ba da ingantaccen ƙarfin injiniya da juriya na sinadarai.
Mafi girman tsarkin halaye (≥ 99.5%) yi amfani da ƙarfi sosai, sa juriya, da aikin dielectric, yayin da ƙananan-tsarki mafita na iya haɗawa da ƙarin matakai kamar mullite ko glazed hatsi kan iyakokin matakan don rage farashi ko haɓakar thermal dressmaker.
Iyawar sarrafa girman hatsi, porosity, da abun da ke ciki na mataki yayin sarrafawa yana ba injiniyoyi damar haɓaka bututun alumina don wasu buƙatu masu amfani a cikin yankuna daban-daban na kasuwanci..
1.2 Makanikai, Thermal, da Ingantattun Lantarki
Bututun yumbura na alumina suna nuna keɓantaccen haɗe-haɗe na kaddarorin jiki waɗanda ke sanya su zama mashahuran wuraren aikin injiniya.
Tare da tsayin daka na Vickers 1500 HV, suna da matukar rigakafi ga abrasion da yashwa, Fiye da mafi yawan karafa da polymers a cikin tsarin lalacewa.
Ƙarfinsu na matsawa zai iya kaiwa 2000 MPa, kunna tsarin amfani a karkashin high inji ton, yayin da flexural ƙarfin hali yawanci jeri daga 300 ku 500 MPa, dogara ga yawa da kuma shafi yankin shafi.
Thermal, alumina yana kiyaye tsaro kusan 1700 ° C a cikin yanayi na oxidizing, tare da ƙarancin haɓakar haɓakar thermal (~ 8 ppm/K), ƙara zuwa kyakkyawan juriya na zafin zafi lokacin da aka tsara shi yadda ya kamata.
Ko da yake ta thermal watsin (~ 30 W/(m · K)) yana da matsakaici idan aka kwatanta da karfe ko aluminum nitride, ya isa ga aikace-aikace masu zafi da yawa inda aka ba da fifikon rufin lantarki da kwanciyar hankali na gine-gine.
Lantarki, alumina fitaccen insulator ne tare da juriya mai yawa> 10 ¹⁴ Ω · cm da taurin dielectric mai girma (> 15 kV/mm), yin shi mafi kyau duka ga lantarki feedthroughs, firikwensin gidaje, da kuma babban ƙarfin lantarki.
( Alumina Ceramic Tubes)
2. Hanyoyin Ƙirƙira da Sarrafa Ma'auni
2.1 Ƙirƙirar da Ƙirƙirar Hanyoyi
Samar da bututun yumbura alumina ya ƙunshi ingantattun hanyoyin ƙirƙirar hanyoyin da aka keɓance don cimma madaidaicin girma., bango surface yawa jituwa, da kuma surface area high quality.
Hanyoyi na yau da kullun sun haɗa da extrusion, isostatic turawa, da zamewa yadawo, kowanne ya dace da tsararraki daban-daban da buƙatun inganci.
Ana amfani da extrusion sosai na dogon lokaci, madaidaicin bututu tare da sassan giciye na yau da kullun, inda ake buƙatar manna alumina mai filastik tare da mutu kuma a yanke tsawon kafin bushewa da sintiri.
Don bututu masu tsayi ko bakin ciki, sanyi isostatic turawa (CIP) yana amfani da matsananciyar damuwa daga duk umarnin zuwa ƙananan koren jikin, rage murdiya da inganta yawa kama.
Simintin faifai, gami da jibgewar dakatarwar alumina colloidal (zamewa) a kan filasta mold da mildew, yana da kyau ga hadaddun ko manyan diamita geometries tare da kaurin saman bango mai canzawa.
Bayan halitta, bututu suna shan bushewa a hankali don daina karyewa, binder gajiya da matsanancin zafi sintering (1500– 1650 ° C )don cim ma cikakken densification da kwanciyar hankali girma.
2.2 Kammalawa da Kula da inganci
Ayyukan bayan-sintering kamar niƙa marar tsakiya, cin duri, kuma ana amfani da haske don cimma matsananciyar haƙuri, m surface gama, da ingantattun diamita na ciki da na waje.
Juriya mai matsewa kamar ± 0.01 mm yana yiwuwa don aikace-aikace masu mahimmanci a cikin sarrafa semiconductor ko kayan aiki na hankali.
Za'a iya rage ƙazancewar yankin saman zuwa Ra < 0.1 µm, decreasing bit trapping and improving compatibility with ultra-high vacuum (UHV) or cleanroom atmospheres.
Hanyoyin gwaji marasa lalacewa– ciki har da ultrasonic jarrabawa, Radiyon X-ray, da fenti mai shiga tsakani– tabbatar da daidaiton tsari da rashin karaya ko sarari.
Ma'auni na awo ta amfani da kayan aikin ma'aunin daidaitawa (CMM) ko Laser scanning yana tabbatar da daidaituwa tare da ƙayyadaddun bayanai, musamman don keɓancewa ko gudanar da masana'anta mai girma.
3. Ingantacciyar Aiki a cikin Muhalli masu Harsh
3.1 Juriya ga thermal da lalata sinadarai
Ɗaya daga cikin mafi kyawun fa'idodin bututun yumbura na alumina shine ikon su na tsayayya da matsanancin zafi da matsalolin sinadarai inda ƙarfe da polymers suka daina aiki..
Suna tsayawa tsayin daka kuma suna dawwama cikin injina cikin ci gaba da sabis a matakan zazzabi a sama 1500 ° C, yin su manufa domin tanderun liners, thermocouple kariya sheaths, da bututu masu haskawa.
Inertness su narke karafa (misali, aluminum mai nauyi, zinc, da kuma wadanda ba na ƙarfe ba), gishiri gishiri, da yawan acid (wanin hydrofluoric da zafi phosphoric acid) yana ba da damar amfani da kayan aikin ƙarfe da sinadarai.
A cikin oxidizing da rage girman yanayi, alumina ba ya ƙasƙanta ko haifar da halayen da ba a so ba, kiyaye tsarki tsari a semiconductor da gilashin masana'antu.
Wannan rashin kuzarin sinadari kuma yana hana gurɓatawa a tsarin sarrafa ruwa mai tsafta, ciki har da wadanda ake amfani da su a masana'antar harhada magunguna da sarrafa abinci.
3.2 Lantarki Insulation da Plasma Resistance
A cikin saitunan lantarki da plasma, bututun alumina suna aiki azaman shingen kariya waɗanda ke kiyaye mutuncin kewaye ƙarƙashin babban ƙarfin lantarki da haɓakar zafin jiki.
Ana amfani da su a cikin fitarwa mai ƙarfi (HID) fitilu, inda suka haɗa da iskar gas mai ionized a matakan zafin jiki wanda ya zarce 1000 ° C yayin jure wa ƙarfin lantarki na kilovolts da yawa.
A cikin jini etching da tsarin ajiya, bututun alumina suna aiki azaman windows dielectric ko abubuwan kewayawar iskar gas, tsaye har zuwa ion barrage da thermal keke ba tare da karya ko fitar da gas ba.
Rage asarar dielectric su da babban juriya na baka suna guje wa bin diddigin lantarki da rashin aiki, yin takamaiman tsawon rayuwar sabis a cikin kayan sauya sheka da sassan watsa wutar lantarki.
Waɗannan gine-ginen suna da mahimmanci don kiyaye tsaro na tsari da dogaro da kayan aikin a cikin ingantattun masana'antu da tsarin wutar lantarki.
4. Masana'antu da Tashe Aikace-aikace
4.1 Na'urorin sarrafa Maɗaukakin Zazzabi da Kasuwanci
Bututun yumbura na alumina suna da alaƙa da nau'ikan hanyoyin kasuwanci iri-iri waɗanda ke buƙatar juriya a ƙarƙashin matsaloli masu tsanani.
A cikin aikin thermal, suna aiki azaman kumfa na tsaro don thermocouples da masu ƙonewa a cikin kilns, masu dumama, da na'urorin maganin zafi, kare abubuwa masu mahimmanci daga yanayi masu tsauri da lalacewa na inji.
A cikin sarrafa ruwa, suna motsa sinadarai masu tayar da hankali, slurries, da iskar gas mai zafi a matatun man petrochemical, desalination shuke-shuke, da tsarin kona sharar gida.
Juriyarsu ga girgizar zafi yana ba da damar ɗumama sauri da sanyaya hawan keke ba tare da gazawa ba, muhimmiyar fa'ida a cikin hanyoyin kasuwanci na cyclic.
A cikin samar da gilashi, bututun alumina suna taimakawa rarrabuwar gilashin ruwa da goyan bayan kayan aikin haɓaka, tsaye har zuwa yashwa daga danko, high-zazzabi narke.
4.2 Advanced Technologies and Future Assimilation
Bayan daidaitattun amfanin kasuwanci, bututun alumina suna gano sabbin ayyuka a cikin ingantattun fasahohin zamani.
A cikin masana'antar semiconductor, Ana amfani da bututun alumina masu tsafta a cikin zubin sinadarai (CVD) activators da ion implantation tsarin, inda dole ne a rage yawan samar da kwayoyin halitta da gurɓataccen ƙarfe.
A cikin na'urori na asibiti, bututun alumina masu jituwa suna aiki azaman abubuwan kariya a cikin kayan aikin likita, hakori implants, da sassan ganewar ganewa.
Nazari yana binciken bututun alumina masu aiki tare da na'urori masu auna firikwensin ko alamun da aka sanya don saka idanu mai wayo a cikin sararin samaniya da tsarin wutar lantarki..
Ƙarfafa samarwa (3D bugu) na alumina yana fitowa azaman dabara don ƙirƙirar geometries mai rikitarwa tare da tashoshi na ciki ko abubuwan ƙira, kyale na gaba-ƙarni zafi musayar da microreactors.
Yayin da sassan ke matsawa zuwa mafi girma aiki, mafi tsabta matakai, kuma mafi girman dogaro, bututun yumbura na alumina suna ci gaba da haɓakawa azaman abubuwan ba da damar abubuwa a cikin wuraren fasahar zamani.
A sake fasalin, bututun yumbura na alumina suna wakiltar babban aji mai ci gaba da haɓaka kayan aikin injiniya, hada fitacciyar thermal, inji, da ingancin wutar lantarki a cikin hanyar inorganic kadai.
Dacewar su a cikin saituna masu tsauri yana ba da tabbacin ci gaba da mahimmancinsu a cikin kafuwar tsarin kasuwanci da aikace-aikacen zamani masu tasowa..
5. Mai rarrabawa
Advanced Ceramics kafa a Oktoba 17, 2012, babban kamfani ne na fasaha mai himma ga bincike da haɓakawa, samarwa, sarrafawa, tallace-tallace da sabis na fasaha na yumbu dangi kayan da samfurori. Kayayyakinmu sun haɗa amma ba'a iyakance ga samfuran yumbura na Boron Carbide ba, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, da dai sauransu. Idan kuna sha'awar, don Allah a ji daɗin tuntuɓar mu.
Tags: Alumina Ceramic Tubes, alumina tubes masu girma dabam, aluminum tube
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