Ungakuhlola kanjani ngokushesha ukusebenza kokucwecwa, ukuphefumula, namandla okushisa aphezulu okunamathela kwensimbi empunga elahlekelwe igwebu?

Indlela yokuhlola ozenzele yona yezakhiwo ezintathu zensimbi empunga elahlekelwe igwebu (ikhono lokuncibilika, amandla okushisa aphezulu, ukuphefumula), kuhlanganiswe nemishini eshibhile nezinyathelo zokusebenza ezilula:

1. Inhloso yokuhlolwa kokucwecwa kwegobolondo: Ukuhlola ubunzima bokuxebuka kwe-coating ebusweni bokubunjwa ngemva kokuthulula.  

Indlela: Ukulungiselela isampula:

1. Sebenzisa i-EPS ukwenza ibhulokhi yokuhlola engu-50 × 50 × 10mm, cwilisa okokunamathela ukuze kuhlolwe, bese uyomisa ngokulinda.  

2. Shumeka ibhulokhi yokuhlola esihlabathini sequartz esomile futhi ulingise ukusakaza esithandweni sokushisa okuphezulu (sishiselwe ezingeni lokushisa elingaba ngu-1400 ° C ngensimbi empunga futhi igcinwe imizuzu emi-5).  

Izinyathelo zokuhlola: Ngemva kokupholisa, thepha kancane ingaphezulu le-casting ngentonga yensimbi bese ubheka ukuxebuka kwesendlalelo sokumboza. Izinga lokulinganisa: Kuhle kakhulu: Ukucwecwa kwe-automatic coating>90%;  

Okuhle:> 80% ithimba ngemva kokuthinta ukukhanya;  

Mpofu: Idinga ukusulwa ngamandla.  

Iphuzu eliyisihluthulelo: Uma ukugqoka kuqukethe i-bentonite noma ama-fibers, ukunakwa kufanele kukhokhwe ezindaweni zokushisa eziphezulu zokushisa, ezingathuthukiswa ngokulungisa isilinganiso sama-aggregates (njenge-quartz powder) kuma-binders.

2. Amandla okushisa aphezulu

Inhloso yokuhlola: Ukuhlola ikhono elivimbela ukuqhekeka noma ukuxebuka lezingubo emazingeni okushisa aphezulu.  

Indlela: Ukulungiswa kwesampula: Gcoba i-coating on mesh yensimbi (efana ne-wire mesh) ukuze wakhe ugqinsi oluwu-2-3mm. Ngemuva kokumisa, nquma amasampula e-strip angama-50 × 10mm.  

Izinyathelo zokuhlola:

1. Beka isampula esithandweni sokushisa okuphezulu, phakamisa izinga lokushisa libe ngu-1000 ° C (ulingisa izinga lokushisa elisheshayo lokuthintana kwensimbi encibilikisiwe), bese ubamba imizuzu engu-10.  

2. Ukubuka ngemva kokususwa: akukho mifantu: amandla amahle kakhulu ezinga lokushisa eliphezulu; Imifantu emincane: eyamukelekayo; Ukuchithwa kwempushana: Izibophezelo zokushisa eziphakeme (ezifana ne-silica sol noma usimende we-aluminate) zidinga ukwengezwa. Esinye isixazululo: Sebenzisa izitini eziphikisayo njenge-substrate ukuze ufake upende, futhi wenze ukuhlolwa kokuklwebheka ngemva kokudubula okunokushisa okuphezulu (ukuqina ≥ 3H kuyafaneleka).

3. Inhloso yokuhlolwa kokuphefumula: Ukulinganisa ikhono le-coating ukuze igesi idlule futhi igweme i-porosity ekusakazeni. Indlela elula: Idivayisi: Ishubhu yengilazi (ububanzi bangaphakathi obungu-20mm, ubude obungu-300mm), enemeshi yensimbi esekela isendlalelo sokumboza ngaphansi (ukwenza isampula eliwugqinsi elingu-1-2mm). Beka ithubhu lengilazi elingashintshi libheke phezulu bese uxhuma igeji yomfutho wamanzi emise okwe-U ngezansi.  

Izinyathelo:

1. Yethula ukucindezela komoya okungaguquki okuvela phezulu kweshubhu yengilazi (usebenzisa iphampu yomoya noma ibhaluni, enomfutho ongu-0.1MPa).  

2. Linganisa ivolumu yegesi edlula enamathela ngesikhathi seyunithi (usebenzisa indlela yokuqoqa igesi engaphansi kwamanzi ukukala isivinini sebhamuza).  

Ukubala: Ukuphefumula=Izinga lokugeleza kwegesi (mL/min)/(Indawo yokumboza x Umehluko wokucindezela). Inani eliyisethenjwa: Ukungeneka kwensimbi empunga ngokuvamile kudinga ukuba kukhulu kuno-50 (iyunithi: cm ³ · cm/(cm ² · min · Pa)).  

Qaphela: Uma izinga lebhamuza lishesha kakhulu, kuyadingeka ukwandisa i-fibre noma impahla yeshidi (njenge-mica) ekunameni ukuze kwehliswe ukuphefumula.

Isifinyezo samaphuzu abalulekile azenzele wona kanye neziphakamiso zokulungisa izinto ezibonakalayo:

Ikhono le-molting elimpofu? Yehlisa izinga lokushisa eliphezulu futhi ukhuphule i-graphite powder noma i-talc powder. Amandla okushisa aphansi? Faka i-silica sol (3-5%) noma usimende we-aluminate.  

Ukuphefumula okunganele? Engeza i-0.1-0.3% ye-wood fiber noma ulungise usayizi wezinhlayiyana ze-aggregate (izinhlayiya ezimahhadla ukuze uthuthukise ukuphefumula).  

Isikhumbuzi sokuphepha: Gqoka amagilavu ​​okuzivikela kanye nemaski yobuso ngesikhathi sokuhlolwa kwezinga lokushisa eliphezulu ukuze ugweme ukusha.  

Ngezindlela ezingenhla, ukusebenza kwezingubo zokugqoka kungahlolwa ngezindleko eziphansi, ezifanele ama-workshops amancane okuphonsa noma ama-laboratories. Ukuze uthole idatha enembe kakhudlwana, ukulinganisa okwengeziwe kungenziwa ngokuhambisana namazinga omkhakha afana ne-JB/T 9226-2008.