Lisosa tsa Mefokolo e Tloaelehileng Literekeng tsa Gray Cast Iron Cylinder

Ho hlaha ha khalase ea metsi ho na le nalane ea lilemo tse fetang 300, empa joalo ka sesepa bakeng sa ho betsa le ho etsa mantlha, e bile feela ho fihlela ka 1947 ha ts'ebetso ea lehlabathe la khalase ea metsi le CO2 joalo ka moemeli ea thatafatsang e hlahisoa ke Dr. L. Petrzela oa Rephabliki ea Czech. ea.

Bakeng sa nako e fetang halofo ea lekholo la lilemo, batho ba fetile lits'ebetsong tse nne tse kholo tsa ho fetoha ho utloisisa mochini o thatafatsang oa lehlabathe la sodium silicate ho lipatlisiso le lipatlisiso tse tsoelang pele, e leng:

• 1) Khopolo ea ho thatafala ha k'hemik'hale e hloekileng ea CO2 ke Moprofesa Lias (Лясс AM) ea Soviet Union ea mehleng ho li-1950. O arolelitse ts'ebetso ea ho thatafala ho senyeha ha silicate, sebopeho sa silika, le tahlehelo ea karoloana ea metsi ho tsoa ho silika. Ka phoso o ne a lumela hore pula e nang le asiti ea silicic le ho theoa ha silica gel e ne e le matla a lehlabathe le thata la CO2 le tiisitsoeng ka sodium. Sole mohloli o le mong
• 2) Lilemong tsa bo-1960, ts'ebetso ea ho thatafala ha lehlabathe la khalase ea metsi ea CO2 ka Worthington R e ne e nkuoa e le motswako oa mekhoa ea ho thatafatsa ea lik'hemik'hale le ea 'mele, ke hore, silicate ea sodium e senyehile hore e be asiti ea mahala ea silika tlasa catalysis ea CO2, ebe e kenella kahare silicone gel. Ho felloa ke metsi 'meleng ha gelisi ea silicone ho tla lebisa ho "silicone gel bonding", e leng mofuta oa "ho thatafala ha lik'hemik'hale"; ho felloa ke metsi ha khalase ea metsi e sa sebetsoeng ho tla lebisa ho "vitreous bonding", e leng ea "ho thatafatsa 'mele". Empa ka phoso o lumela hore ho thatafatsa lik'hemik'hale ke mokhoa o sebetsang le o potlakileng oa ho thatafatsa, ha a ntse a hlokomoloha karolo ea bohlokoa ea ho thatafatsa 'mele;
• 3) Mathoasong a lilemo tsa bo-1990, khalase ea metsi e tiileng ea CO2 e entsoeng ke Zhu Chunxi le ba bang naheng ea heso e ne e le khopolo ea "ho thatafala ha 'mele". O lumela hore lehlabathe la khalase ea metsi le fehlang ho thatafala ha CO2 e tlameha ho ba tlasa boemo bo ikhethang haholo, ke hore, khalase ea metsi e koahetsoe ka holim'a likaroloana tsa lehlabathe ho theha filimi e nang le botenya ba li-microns tse 'maloa feela, tse ka etsang hore e be ntle. maemo a ho felloa ke metsi 'meleng le ho khothaletsa ho tiea ka potlako ha khalase ea metsi. , Kahoo ho thoe "ho thatafala ha khalase ea metsi ke ho thatafala ha 'mele." Bothata ba pono ena ke hore e ntse e latela pono e fosahetseng ea hore asiti ea mahala ea silika e a senyeha ha silicate ea sodium e sebetsana le CO2.
• 4) Qetellong ea li-1990s, Zhu Chunxi le ba bang ba ipapisitse le khopolo ea hore ho thatafala ha CO2 ke ea chemistry e thata, kamora lipatlisiso tse ling tse tebileng, ba ile ba etsa tlhahiso ea hore khalase ea metsi e thatafetseng ke mofuta oa "khalase ea metsi e phahameng e nang le metsi" . Khopolo-taba, ke hore, asiti ea silicic e hlahisoang ke karabelo e ke ke ea tsekoloha ka bolokolohi, empa ea qhaloa hape ka khalase ea metsi e sa sebetsoang, ea eketsa modulus ea morao ho tseba ho thatafala ha khalase ea metsi. Mohlala, ha asene ea manyolo e sebelisetsoa ho thatafatsa lehlabathe la sodium silicate, ho ka fumanoa filimi e thatafalitsoeng ka ho fetisisa ea sodium silicate e nang le junifomo e tsoang holimo le kahare, e haufi le M = 3.45. Ha CO2 e sebelisetsoa ho thatafatsa khalase ea metsi, filimi e thata ea khalase ea metsi e nang le modulus e fokotsehang hanyane ka hanyane holimo le kahare, ka karolelano ea M e ka bang 3.79 e ea fumaneha.

Ka hona, khalase ea metsi e thatafetseng ke mofuta oa khalase ea metsi e nang le metsi a mangata, e ka tiisoang ka tahlehelo ea alkali le metsi.

Ka 2008, Mojeremane C. Wallenhorst et al. ba lumela hore mokhoa o thata oa ho itšoara ka lehlabathe la sodium silicate o ka aroloa ka mefuta e 'meli e latelang, joalo ka ha ho bonts'itsoe ho Setšoantšo sa 1.

1.1 Mokhoa oa A

Ha ho na le tharollo ea acidic kapa moemeli oa ho folisa (CO2 kapa organic ester), sekhahla sa kholo ea likaroloana tsa colloidal ka khalase ea metsi se lieha haholo, empa se kopantsoe ka kotlolloho le gel ea marang-rang ea mahlakore a mararo.

1.2 Mokhoa oa B

Tlas'a boemo ba tharollo ea alkaline ntle le ho folisa (ha e futhumatsoa), likaroloana tsa colloidal lia hola pele ebe li theha sebopeho sa sol; 'me likaroloana tsa sol ka bonngoe li ka theha sebopeho sa marang-rang se nang le mahlakore a mararo feela tlasa mohato o kopanyang oa accelerator.

Motho ka mong silicic acid likaroloana li ka hola ho ba likaroloana tse kholo tsa colloidal (mofuta oa B), kapa li ka kopanya likarolo tsa liketane le marang-rang (mofuta oa A). Mefuteng ena e 'meli e thatafallang ea ho arabela, lik'hemik'hale tsa ts'ebetso ea lik'hemik'hale li ts'oana-ka karabelo ea condensation lipakeng tsa lihlopha tse le' ngoe tsa silanol, ho felloa ke metsi 'meleng le khokahano ea kompone e ncha ea siloxane.
"Ho ka bonoa hore mokhoa o thata oa ho arabela ha khalase ea metsi haholo ho latela boleng ba pH ea tharollo ea binder. Ka boleng bo tlase ba PH (boteng ba CO2 kapa organic ester e phekolang moemeli) tharollo ea metsi a silicic acid, ho molemo ho mokhoa o thatafatsang oa karabelo A. Ka nako ena, lebelo la ho itšoara le thatafetseng le lieha haholo, 'me likaroloana tsa colloidal lia bokellana ho theha sebopeho sa gel, se nang le mafura.

Ha boleng ba pH ea tharollo ea silika ea acid e nang le metsi a mangata> 7 (ha ho na CO2 kapa li-organic esters le mocheso o qalileng), mokhoa oa ho thatafala oa karabelo B o tsoela pele ho theha sebopeho se seholo sa karoloana. Tabeng ea tharollo e nang le boleng bo phahameng ba pH, limolek'hule li hola ka potlako hoo karabelo ea ho thatafala e bakoang haholo ke kholo e tsoelang pele ea likaroloana tsa colloidal ntle le sebopeho sa sebopeho sa gel. Ebile, ts'ebetso ea ho kopanya ka har'a sebopeho sa marang-rang e thibetsoe.

Ha lehlabathe la khalase ea metsi le nang le accelerator le futhumetse ebile le thatafetse, mochini o thatafatsang karabelo o tjena:

Kamora hore khalase ea metsi ea lehlabathe e futhumale le ho hlasimoloha, e tsoela pele ho latela mokhoa oa ho thatafala oa karabelo B (bona setšoantšo sa 1), 'me likaroloana tsa colloidal lia hola ebe li theha sebopeho sa sol. Ka nako ena, ha karabelo e thatafala e ntse e tsoela pele, moaho o ka bang sebopeho sa granular kapa sebopeho se nang le liphoso tse ling se ka theoa. Palo ea likoli e tla ama ts'ebetso ea eona ea ts'ebeliso e latelang, joalo ka ho hanela mongobo oa mantlha oa lehlabathe.

Ha khalase ea lehlabathe la metsi e thatafalitsoe ke khase ea CO2, kapa ha ester ea organic e thatafetse, solone e le 'ngoe e tla tsoela pele ho latela mokhoa oa ho thatafala oa A,' me likaroloana tsa colloidal li tla kopana ebe li tlamahane ho theha sebopeho sa gel. . Haeba ho se na moemeli ea phekolang tharollong ea alkaline ea silicic acid, likaroloana tsa silika li ka ba teng ka har'a tharollo ea alkaline. Lebaka ke hore bokaholimo ba likaroloana tsa colloidal bo na le matla a motlakase a mokelikeli o habeli oa motlakase oa li-ion tsa sodium tse nang le matla. Litholoana tsa likaroloana tsa colloidal lia hlaselana ebile ha li kopane. Haeba ho na le accelerator e sa sebetseng mohatong oa ho thatafala ha lehlabathe la sodium silicate, e ka sebetsa e le moemeli oa khokahano lipakeng tsa likaroloana tsa colloidal, ke hore, accelerator e sa sebetseng e ka hokahanya likaroloana tsa sol ka bonngoe ka lihlopha tse sebetsang tse sebetsang holim'a eona. . Hammoho, marang-rang a mahlakore a mararo a masapo a silicate a thehoa, e le hore binder e tiee kapele mme likaroloana tsa lehlabathe li kopane ebe lia theoa.

Haeba ho se na li-accelerator tse sa sebetseng tse ekelitsoeng, sebopeho sa masapo a silicate a sebopeho sa marang-rang se lieha haholo nakong ea ts'ebetso ea ho thatafala ha sekhahla, mme mokokotlo oa lehlabathe o lokiselitsoeng o bontša liphoso tse joalo ka matla a tlase a nakoana le ho hanela mongobo hampe.

Ka ho sekaseka mechini e thatafatsang khalase ea metsi e kaholimo, ho ka bonoa hore leha ho na le mekhoa e fapaneng ea ho thatafatsa lehlabathe la silicate ea sodium, ka kakaretso e ka aroloa ka ho thatafala 'meleng le ho thatafala ha lik'hemik'hale, mme mochini oa ho thatafatsa o ts'oana ebile o kopane. ea. Ka mantsoe a mang, mokhoa oa ho thatafatsa ester oa lehlaka oa lehlabathe o na le mokhoa o ts'oanang oa ho thatafatsa joalo ka mokhoa oa ho thatafatsa oa CO2, o ipapisitseng haholo le ho thatafala hoa 'mele ho sa sebetseng ha khalase ea metsi ea khalase ea metsi, e leng lona lebaka le ka sehloohong la matla a hlobo (konokono) lehlabathe; ho hlahisa silicon Ho thatafala ha lik'hemik'hale ha gel ho tlatsetsoa ke ho tiisa ka potlako ha lehlabathe la sodium silicate, ho theoa ha matla a mantlha, ntlafatso ea ho hanyetsa mongobo le botsitso ba polokelo ea lehlabathe, le ts'ebetso ea tšebelisano ea ho thatafatsa ha lik'hemik'hale le ho thatafala ha 'mele. .

Ho ipapisitsoe le tlhaiso-leseling e tebileng ea mochini o thatafatsang oa lehlabathe le kaholimo la sodium le nang le mekhoa e fapaneng ea ho thatafatsa (mokhoa oa CO2, mokhoa oa organic ester le ho futhumatsa + mokhoa oa ho potlakisa, jj.), Le ho lekola ts'usumetso ea khalase ea metsi e kopanyang matla le mongobo ho hanyetsa ho tloha boemong ba limolek'hule Lintho tse ka sehloohong tse susumetsang lipakeng tsa khalase ea metsi le ts'ebetso e ka senyehang, e le ho fetola sebopeho le morpholoji ea khalase ea metsi ho latela pono ea limolek'hule, le ho nts'etsapele mokhoa o mocha oa ho futhumatsa o potlakisang + accelerator khalase ea metsi lehlabathe. ntlafatsa matla a tlamahano ea lehlabathe la khalase ea metsi. Morero oa ho eketsa ho hanyetsa mongobo le ho ntlafatsa ts'ebetso ea eona e oelang ke ho ntlafatsa le ho ntlafatsa ts'ebetso ea ts'ebetso ea lehlabathe la sodium ha o ntse o hlola likhaello tsa eona tsa tlhaho, ka hona e fetoha mofuta o ts'episang o tala ka ho fetesisa lekholong la bo21 la lilemo. Hloekisa sekhomaretsi.

2 Tshebetso ea ts'ebetso ea lehlabathe le lecha le sa sebetseng

2.1 Ts'ebetso ea matla a bond

Ka ho lokisa phosphate ea amorphous le ho e sebelisa ho fetola khalase ea metsi, matla a kopanyang a binder e sa tloaelehang a ntlafatsoa.

Bakeng sa ho ntlafatsa matla a tlamang a lehlabathe la silicate ea silicate, ho entsoe sesebelisoa sa motlakase. Ka tšebeliso ea khokahano ea lik'hemik'hale le ho thatafala, matla a nakoana a lehlabathe la silicate a silika a ka ntlafatsoa haholo. Ha accelerator ea tlhaho e eketsoa ho 1.5%, matla a ho tšoarella hanghang Matla a ka fihla 1.8MPa.

2.2 Ho hanyetsa mongobo oa lehlabathe la mantlha

Ka kakaretso, matla a lehlabathe la khalase ea metsi a thatafalitsoeng ke moea o chesang a tla fokotseha butle-butle tikolohong e mongobo. Bakeng sa ho ntlafatsa ho hanyetsa mongobo oa lehlabathe la sodium silicate, ka lehlakoreng le leng, karolo e setseng ea mongobo lehlabatheng e tlosoa ka botlalo kamora ho thatafala, mme ka lehlakoreng le leng, mokhoa oa khokahano ea lik'hemik'hale le ho thatafala oa sebelisoa. Ha accelerator e eketsoa ho 1.5%, matla a tensile a lehlabathe la silicate a ke ke a fokotseha, empa a tla nyoloha hanyane kamora ho beoa ho 20 ° C le 80% mongobo o lekanyelitsoeng bakeng sa lihora tse 24

2.3 Phallo ea thepa ea lehlabathe la mantlha

Tsitsipano holim 'a khalase ea metsi ka boeona e ke batlang e le kholo, e leng se etsang hore wettability pakeng tsa khalase ea metsi le lehlabathe silica futsanehileng, le e tiileng e qamathelang ea khalase metsi bakeng sa foromeletsoeng ka kakaretso kholo haholo, e le hore e tiileng e qamathelang ea lehlabathe khalase metsi ka mor'a ho kopanya ho hoholo haholo, 'me likaroloana tsa lehlabathe li khomarela khalase ea metsi. Khanyetso ea motsamao e kholo haholo, e fella ka ho fokola ho futsanehileng ha lehlabathe la sodium silicate, mme qetellong e fokotsa ho thatafala ha mokokotlo oa thunya. Tekong ena, li-surfactant le li-lubricants tse tiileng li ile tsa eketsoa ho ntlafatsa haholo ho fofa ha lehlabathe.

Ho ipapisitsoe le ts'ebeliso ea li-surfactants le li-lubricants tse tiileng, teko ena e hlahisitse accelerator e chitja, e ntlafalitseng phallo ea lehlabathe la khalase ea metsi haholo.

Ka kopo boloka mohloli le aterese ea sengoloa sena hore se hatisoe hape:Lisosa tsa Mefokolo e Tloaelehileng Literekeng tsa Gray Cast Iron Cylinder

Minghe Khamphani ea Die Casting li inehetse ho etsa le ho fana ka boleng bo phahameng le likarolo tse phahameng tsa ho lahla likarolo Thining-Wall Die Casting,Hot Chamber Die lahla,Cold Chamber shoa lahla), Tšebeletso e chitja (Die Casting Service,Cnc Machining,Ho Etsa Mofuta, Bokaholimo Phekolo) .Na tloaelo efe kapa efe ea Aluminium die die cast, magnesium kapa Zamak / zinc die casting le litlhoko tse ling tsa castings lia amoheleha ho ikopanya le rona

Tlas'a taolo ea ISO9001 le TS 16949, lits'ebetso tsohle li etsoa ka mechini e makholo ea li-die casting, mechini e 5-axis le lits'ebeletso tse ling, ho tloha ho li-blasters ho isa mechini ea ho hlatsoa ea Ultra Sonic. sehlopha sa baenjiniere ba nang le boiphihlelo, lisebelisoa le bahlahlobi ho etsa moralo oa moreki o phethahala.

Moetsi oa konteraka oa li-cast cast. Bokhoni bo kenyelletsa likarolo tse batang tsa aluminium die die likarolo tsa 0.15 lbs. ho isa ho li-6 lbs., Ho theha phetoho e potlakileng, le machining. Litšebeletso tse kenyellelitsoeng boleng li kenyelletsa ho bentsa, ho thothomela, ho qhekella, ho phatloha ha lithunya, ho penta, ho roala, ho roala, kopano le lisebelisoa. Lisebelisoa tse sebelisitsoeng le tsona li kenyelletsa lits'epe tse kopantsoeng tse kang 360, 380, 383 le 413.

Zinc e shoa ho lahla thuso ea moralo / lits'ebeletso tsa boenjineri tse tšoanang. Moetsi oa moetlo oa li-castings tsa zinc tse nepahetseng. Li-castings tse nyane, li-castings tse phahameng tsa khatello, li-cast cast tsa hlobo, li-castings tse tloaelehileng tsa hlobo, li-unit tsa die le li-cast cast tse ikemetseng le li-cast cast tse tiisitsoeng li ka etsoa. Li-castings li ka etsoa ka bolelele le bophara ho fihlela 24 ho. Ho +/- 0.0005 ho. Mamello.  

ISO 9001: Moetsi ea netefalitsoeng oa 2015 oa magnesium ea die die, Bokhoni bo kenyelletsa khatello e phahameng ea khatello ea magnesium die cast to 200 ton room & 3000 kamoreng e batang, moralo oa lithulusi, polishing, molding, machining, powder & liquid paint, QA e felletseng e nang le bokhoni ba CMM , kopano, ho paka le ho tsamaisa.

ITAF16949 e netefalitsoe. Ts'ebeletso e 'ngoe ea ho lahla e kenyeletsa ho lahla lichelete,ho lahla lehlabathe,Matla a khoheli, Lahlehileng bubble lahla,Ho ts'oaroa ha Centrifugal,lephaka lahla,Sa Feleng hlobo lahlaBokhoni bo kenyelletsa EDI, thuso ea boenjiniere, ho etsa mohlala o tiileng le ho sebetsoa ka bobeli.

Lahla Liindasteri Liphuputso tsa likarolo tsa likarolo tsa: Likoloi, libaesekele, lifofane, liletsa tsa 'mino, sesepa sa metsi, lisebelisoa tsa Optical, li-sensor, mehlala, lisebelisoa tsa elektroniki, masaka, lioache, mechini, lienjine, thepa ea ka tlung, mabenyane, mabenyane, telecom, mabone, lisebelisoa tsa bongaka, lisebelisoa tsa litšoantšo, Liroboto, Litšoantšo tse betliloeng, Lisebelisoa tsa molumo, Lisebelisoa tsa lipapali, Lithulusi, Lipapali le tse ling. 

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