Kopo eaSodium CMCbakeng sa Casting Coatings

Ka indasteri ea ho lahla,sodium carboxymethyl cellulose(CMC) e sebetsa e le karolo ea bohlokoa mefuteng e fapaneng ea ho lahla, e fana ka mesebetsi ea bohlokoa e tlatsetsang boleng le ts'ebetso ea mokhoa oa ho lahlela. Liaparo tsa casting li sebelisoa ho liforomo kapa lipaterone ho li-foundries ho ntlafatsa bokaholimo, ho thibela mefokolo, le ho thusa ho lokolloa ha hlobo. Mona ke tsela eo sodium CMC e sebelisoang ka eona ho lahlela liaparo:

1. Binder le Adhesion Promoter:

• Tlhahiso ea Lifilimi: Sodium CMC e etsa filimi e tšesaane, e ts'oanang holim'a liforomo kapa lipaterone, e fana ka lera le boreleli le le tšoarellang.
• Ho khomarela Substrate: CMC e ntlafatsa ho khomarela likarolo tse ling tsa ho roala, tse kang lisebelisoa tsa refractory le li-additives, holim'a hlobo, ho netefatsa tšireletso e tšoanang le tšireletso e sebetsang.

2. Ntlafatso ea Qetello ea Bokaholimo:

• Surface Smoothing: CMC e thusa ho tlatsa bofokoli ba bokaholimo le bofokoli holim'a liforomo kapa lipaterone, e bakang libaka tsa ho lahla tse boreleli ka nepo e ntlafalitsoeng ea boholo.
• Thibelo ea Bofokoli: Ka ho fokotsa bofokoli bo kaholimo joalo ka lithapo, mapetsong le lehlabathe, CMC e kenya letsoho ho hlahisoeng ha li-castings tsa boleng bo holimo tse nang le bokaholimo bo holimo.

3. Taolo ea Mongobo:

• Ho boloka Metsi: CMC e sebetsa e le ntho e bolokang mongobo, e thibelang ho omisoa pele ho nako ea liphahlo le ho lelefatsa bophelo ba bona ba ho sebetsa holim'a hlobo.
• Ho fokotseha ho Fokotsehang: Ka ho boloka tekanyo ea mongobo nakong ea ho omisa, CMC e thusa ho fokotsa ho phunyeha le ho fokotseha ha liphahlo tsa ho lahla, ho netefatsa hore ho koaheloa ka mokhoa o ts'oanang le ho khomarela.

4. Phetoho ea Rheology:

• Taolo ea Viscosity: Sodium CMC e sebetsa joalo ka mofetoleli oa rheology, e laolang viscosity le thepa ea phallo ea liphahlo tsa ho lahla. E nolofalletsa ts'ebeliso e ts'oanang le ho khomarela li-geometri tse rarahaneng tsa hlobo.
• Boitšoaro ba Thixotropic: CMC e fana ka thepa ea thixotropic ho li-coatings, e li lumellang hore li teteane ha li eme le ho boela li phalla ha li ferekanngoa kapa li sebelisoa, ho ntlafatsa ts'ebetso ea kopo.

5. Moemeli oa Phatlalatso:

• Mold Release: CMC e sebetsa joalo ka moemeli oa tokollo, e nolofalletsang karohano e bonolo ea li-castings le hlobo ntle le ho khomarela kapa ho senya. E etsa mokoallo pakeng tsa ho lahla le hlobo, ho nolofatsa ho hloekisoa le ho boreleli.

6. Ho lumellana le Li-additives:

• Kenyelletso e Kenyellelitsoeng: CMC e tsamaisana le li-additives tse fapaneng tse atisang ho sebelisoa ha ho roaloa liaparo, joalo ka lisebelisoa tsa refractory, li-binders, lubricant le li-anti-veining agents. E lumella ho hasana ho homogeneous le ts'ebeliso e sebetsang ea li-additives tsena ho fihlela thepa e lakatsehang ea ho lahla.

7. Maikutlo a Tikoloho le Polokeho:

• Ha e na Chefo: Sodium CMC ha e chefo ebile ha e na tikoloho, e beha kotsi e nyane ho basebetsi le tikolohong nakong ea ts'ebetso ea ho lahla.
• Tumellano ea Taolo: CMC e sebelisitsoeng ho lahla liphahlo e lumellana le litekanyetso tsa taolo le lintlha tsa polokeho, boleng le ts'ebetso lits'ebetsong tsa motheo.

Ka bokhutšoanyane, sodium carboxymethyl cellulose (CMC) e bapala karolo ea bohlokoa ho faneng ka liphahlo ka ho fana ka thepa ea binder, ntlafatso ea bokaholimo, taolo ea mongobo, phetoho ea rheology, ts'ebetso ea moemeli oa tokollo, le ho tsamaellana le li-additives. Litšobotsi tsa eona tse feto-fetohang li etsa hore e be karolo ea bohlokoa indastering ea ho hlahisa lihlahisoa tsa boleng bo holimo tse nang le litekanyo tse nepahetseng le boleng bo holimo.