Kabo ea boholo ba likaroloana tsa lehlabathe le tala e ama haholo boleng ba li-castings. Ha o sebelisa grit e mahoashe, tšepe e qhibilihisitsoeng e atisa ho kenella ka har'a grit ea mantlha, e leng se etsang hore ho be le sebaka se fokolang sa ho lahlela. Tšebeliso ea lehlabathe le ntlafetseng e ka hlahisa sebaka se setle le se boreleli sa ho lahla, empa se hloka palo e phahameng ea binder, 'me ka nako e ts'oanang e fokotsa ho phunyeha ha moea oa mantlha, e leng se ka bakang liphoso tsa ho lahlela. Ka mokhoa o akaretsang oa ho lahla lehlabathe, haholo ha ho sebelisoa lehlabathe la silika, lehlabathe le tala hangata le ka har'a mefuta e latelang ea boholo:
Karolelano ea botle ba 50–60 AFS (karolelano ea boholo ba karoloana 220–250 μm): boleng bo holimo ba boleng bo holimo le tšebeliso e tlase ea setlamo
Phofo e ntle (e ka tlase ho 200 mesh) content ≤2%: e ka fokotsa palo ea binder
Likahare tsa seretse (likahare tse ka tlase ho 0.02mm) ≤0.5%: li ka fokotsa palo ea setlamo
Kabo ea boholo ba likaroloana: 95% ea lehlabathe e tsepamisitsoe holim'a sieve ea 4 kapa ea 5: ho bonolo ho kopanya le ho fokotsa bofokoli ba ho ruruha.
Moea o kenang lehlabatheng le omeletseng: 100-150: fokotsa bokooa ba pore
Lehlabathe la Ceramic, ka lebaka la sebopeho sa lona se batlang se le pota-potile, metsi a mangata haholo, ho khoneha ha moea o phahameng, le litšoaneleho tsa kabo ea boholo ba likaroloana tse ngata le motsoako o le mong oa mesh nakong ea tlhahiso, ts'ebetsong ea ho lahla, ho phaella ho latela litšobotsi tse tloaelehileng tse ka holimo. ho na le Litšobotsi tsa eona tse ikhethang tsa karohano tse e etsang hore e se be le khethollo le delamination nakong ea lipalangoang le lipalangoang; e na le matla a matle a metsi ts'ebetsong ea lehlabathe la hlobo e tala le lehlabathe la resin le sa bake. Bakeng sa ts'ebetso ea ho lahla lehlabathe ho sebelisa li-binders, tšebeliso ea kabo ea li-multi-sieve e etsa hore likaroloana tse nyenyane li tlatse likheo pakeng tsa likaroloana tse kholoanyane le ho inlay e mong le e mong, ho eketsa "borokho bo kopanyang" ba binder, ka tsela eo ho ntlafatsa matla a maqhama a mantlha, joalo-joalo. Ke tsela e atlehang.
Ha re akaretsa ts'ebeliso ea lehlabathe la ceramic bakeng sa lilemo tse fetang 20, litlhoko tsa boholo ba likaroloana le kabo ea lehlabathe la ceramic le sebelisoang lits'ebetsong tse fapaneng tsa ho lahla li thathamisitsoe ka tsela e latelang:
● RCS (Resin Coated Ceramic Sand)
Litekanyetso tsa AFS tsa 50-70, 70-90, le 90-110 kaofela li sebelisoa, li ajoa ka 4 kapa 5 sieves, 'me mahloriso a ka holimo ho 85%;
● Lehlabathe la resin le sa beheng
(Ho kenyeletsoa furan, alkali phenolic, PEP, Bonnie, joalo-joalo): AFS 30-65 e sebelisoa, li-sieve tse 4 kapa kabo ea li-sieves tse 5, mahloriso a feta 80%;
● Lost Foam Process / Lost Weight Foundry Process
10/20 mesh le 20/30 mesh li sebelisoa hangata, tse ka ntlafatsang ho kenella ha moea, ho netefatsa sekhahla sa ho nchafatsa lehlabathe la ceramic ka mor'a ho tšela, le ho fokotsa tšebeliso;
● Cold Box Sand Process
AFS 40-60 e sebelisoa hangata, e ajoa ka 4 kapa 5 sieves, 'me mahloriso a ka holimo ho 85%;
● Khatiso ea Lehlabathe ea 3D
Li-sieve tse 2 li ajoa, ho fihla ho li-sieve tse 3, tse nang le mahloriso a fetang 90%, ho netefatsa hore ho na le lehlabathe le lekaneng le lekaneng. Karolelano ea fineness e ajoa haholo ho latela ts'ebeliso e fapaneng
Nako ea poso: Mar-27-2023
