Dahaarka ah ee loo yaqaan 'Pyrolytic Graphite Crucible'

Kaarboon Crucible ee PG Dahaarka leh waa badeecad si gaar ah loo farsameeyey Waxaa caadi ahaan loo isticmaalaa uumiga, dhalaalidda iyo dhigidda agabka heerkulka sare iyo goobaha faakuumka, waxayna door muhiim ah ka ciyaartaa hababka uumi-baxa vacuum gaar ahaan. Naqshadaynta udub-dhexaadka ah waa in laga faa'iidaysto sifada aadka u fiican ee Pyrolytic Graphite si loo dahaadho gidaarka gudaha ama dhammaan dusha sare ee lakabka, sidaas awgeed kor u qaadida caabbinta heerkulka sare ee crucible, firfircoonida kiimikaad iyo isku midnimada kulaylka.

Tilmaamaha Dhismaha:

Qalabka Matrixka iyo Qaab-dhismeedka Dahaarka:

Qalabka Susceptor: Garaafyadayada garaafyada waxay ka samaysan yihiin walxo garaaf ahaan sida substrate si loo hubiyo awoodda farsamada guud iyo caabbinta kulaylka.

Kaarboon Pyrolytic (PyC) Dahaarka: Lakab nadiif ah oo nadiif ah, graphite pyrolytic aadka u crystalline ayaa si isku mid ah loogu kaydiyaa gudaha ama bannaanka qashinka iyada oo la adeegsanayo habka Kaydinta Uumiga Kiimikada (CVD). Dhumucda dahaarka waa 30 µm sida caadiga ah. Dahaarka waa lakabyo iyo anisotropic aad u sarreeya inta u dhaxaysa lakabyada jihada koritaanka crystal. Nadiifinta dahaarka ayaa ka badan 99.999% iyo nuxurka wasakhdu waxay ka yar tahay 10 ppm, taas oo ka dhigaysa mid si gaar ah ugu habboon hababka leh shuruudaha nadiifnimada adag. Waxaan sidoo kale taageernaa dhumucda daahan la habeeyey iyadoo loo eegayo baahiyahaaga.

Xiritaanka iyo iska caabbinta nabaad guurka:

Dahaarkayagu waxay leeyihiin porosity aad u hooseeya iyo dusha siman (tusaale muraayad-barar) oo sidaas darteed ka ilaali substrate-ka falcelinta kiimikaad ee u dhexeeya walxaha dhalaalka ah iyo walxaha saldhigga ah ee heerkul sarreeya, sidaas awgeed waxay sii dheeraynaysaa nolosha adeegga qulqulka.

Marka lagu jiro jawi faaruq ah iyo jawi aan firfircoonayn, graphite pyrolytic ayaa soo bandhigaysa iska caabbinta nabaad-guurka ee aad u fiican, hubinta in walxaha aan lagu wasakhayn fal-celinta kiimikaad ee markabka ama qulqulka jawiga heerkulka sare.

Baakadaha Kaarboon-Curcible ee Dahaarka leh ee PG

Crucible-kayaga Dahaarka leh ee Pyrolytic Graphite Coated Crucible waxa lagu xidhi doonaa sanduuqyo alwaax ah oo cufnaanta sare leh iyo xaddi badan oo xumbo ah, waxaana si taxadar leh loo maamuli doonaa inta lagu jiro kaydinta iyo gaadiidka si loo ilaaliyo tayada asalka ah ee alaabtayada. Waxaan sugeynaa su'aalahaaga dheeriga ah!

Doorka gaarka ah ee uumiga vacuum:

1. Koontaroolka kululaynta iyo uumiga:

Garaafyada pyrolytic ee lagu dahaadhay gidaarka gudaha ee qulqulka ayaa bixin kara kulaylka wanaagsan si loo hubiyo qaybinta heerkulbeegga isku midka ah inta lagu jiro habka kuleylka, si ay walaxda la uumibixiyo ay u soo baxdo si deggan oo isku mid ah vacuumka.

2. Ka hortag fal-celin kiimikaad iyo faddarayn:

Dhaqdhaqaaqa kuleylka sare ee graphite pyrolytic waxay hubisaa in walxaha la uumi-baxay (tusaale aluminium) loo kululeeyo si isku mid ah, taas oo hagaajinaysa tayada daahan; Dhanka kale, kiimikaad la'aanta PG waxay ka hortagtaa birta dhalaalaysa inay la falgasho qoloflaha, kaas oo ka fogaanaya jiilka wasakhda iyo sidoo kale wasakhowga iman kara.

3. Hagaajinta xasiloonida habka iyo soo celinta:

Iyada oo ay ugu wacan tahay iska caabbinta heerkulka sare ee aad u wanaagsan iyo sifooyinka fidinta kulaylka hooseeya, isticmaalka PG Coated Carbon Crucible waxay si weyn u yareeyn kartaa isbedbeddelka habka ee ay keento isbedbedelka heerkulka ama kulaylka deegaanka, sidaas darteed hagaajinta joogteynta alaabta. Tusaale ahaan, uumi-baxa elektarooniga ah, Graphite crucibles oo leh daahan PG waxay u adkeysan karaan duqeynta tamarta sare ee alwaaxyada elektarooniga ah, ilaalinta xasilloonida qaabdhismeedka iyo ka hortagga walxaha inay isbeddelaan oo ay ka baxaan xakamaynta.

4. Kordhi nolosha adeegga qalabka:

Porosity hooseeya iyo iska caabbinta daxalka sare ee daahan Pyrolytic Graphite waxay si wax ku ool ah u yaraynaysaa nabaad guurka walxaha. Tusaale ahaan, habka vacuum aluminizing, Pyrolytic Graphite Crucible si joogto ah ayaa loo isticmaali karaa 24-52 saacadood, taas oo aad u yaraynaysa inta jeer ee beddelka iyo kharashka wax soo saarka.