Joalo ka mokhoa oa setso oa ho etsa mantlha, ts'ebetso ea lehlabathe e koahetsoeng e ntse e nka boemo ba bohlokoa tlhahisong ea ho lahla.Leha ts'ebetso ea ho etsa li-furan core, mokhoa o batang oa ho etsa mantlha le lits'ebetso tse ling li ntse li tsoela pele le ho sebelisoa, ts'ebetso ea eona ea mantlha e ntse e sebelisoa haholo liindastering tse fapaneng tsa ho lahla ka lebaka la mokelikeli oa eona o motle, matla a phahameng le botsitso ba mocheso, hammoho le nako e telele ea polokelo.Ho ntse ho le thata ho nkela sebaka liindastering tse ling tse kang likarolo tsa hydraulic, likhetla tsa turbine le liindasteri tse ling tsa maemo a holimo.
Litšobotsi:
tshebetso e loketseng ya matla;metsi a matle, hlobo ea lehlabathe le li-cores tsa lehlabathe tse hlahisoang li na le li-contours tse hlakileng le sebopeho se teteaneng, 'me li ka hlahisa li-cores tsa lehlabathe tse rarahaneng;boleng ba holim'a hlobo ea lehlabathe (konokono) e ntle, ho hlaba holimo ho ka fihla Ra = 6.3 ~ 12.5μm, 'me ho nepahala ha dimensional ho ka fihla boemong ba CT7 ~ CT9;ho senyeha ho hotle, 'me li-castings li bonolo ho hloekisa.
Sebaka sa kopo
E ka sebelisoa ho etsa liforomo tse peli le li-cores tsa lehlabathe.Li-mold kapa li-cores li ka sebelisoa hammoho kapa ka mefuta e meng ea lehlabathe (li-cores);e ka sebelisoa eseng feela bakeng sa ho lahla matla a khoheli a tšepe kapa ho theola khatello e tlase, empa hape le bakeng sa ho lahla lehlabathe la tšepe le ho chesa centrifugal;e ka sebelisoa eseng feela bakeng sa tlhahiso ea tšepe e entsoeng ka tšepe le li-non-ferrous alloy castings, empa hape le bakeng sa tlhahiso ea li-castings tsa tšepe.
tlhamo
Ka kakaretso e entsoe ka lisebelisoa tsa refractory, li-binders, lisebelisoa tse phekolang, litlolo le li-additives tse khethehileng.
(1) Lisebelisoa tsa refractory ke likarolo tse ka sehloohong tsa eona.Litlhoko tsa thepa ea refractory ke: refractoriness e phahameng, volatiles e tlaase, likaroloana tse batlang li pota-potile, tse tiileng, joalo-joalo. Ka kakaretso ho sebelisoa lehlabathe la silika la tlhaho.Litlhoko tsa lehlabathe la silika ke: litaba tse phahameng tsa SiO2 (litšepe tse entsoeng ka tšepe le li-non-ferrous alloy castings li hloka ho feta 90%, 'me likarolo tsa tšepe li hloka ho feta 97%);seretse ha se fete 0.3% (bakeng sa lehlabathe le hlatsuoang)–[seretse sa lehlabathe le hlatsoitsoeng se ka tlase ho;boholo ba karoloana ① bo ajoa ka linomoro tse 3 ho isa ho tse 5 tse haufi tsa sieve;sebopeho sa likaroloana se chitja, 'me ntlha ea angular ha ea lokela ho ba kholo ho feta 1.3;boleng ba tšebeliso ea acid ha bo ka tlase ho 5ml.
(2) Phenolic resin hangata e sebelisoa e le tlamahano.
(3) Hexamethylenetetramine hangata e sebelisoa e le moemeli oa phekolo;calcium stearate ka kakaretso e sebelisoa e le setlolo, se sebelisetsoang ho thibela ho tsoa ho agglomerating le ho eketsa metsi.Mosebetsi o ka sehloohong oa tlatsetso ke ho ntlafatsa ts'ebetso ea lehlabathe le koahetsoeng.
(4) Karo-karolelano ea motheo ea Component Ratio (karolo ea boima, %) Tlhaloso: Lehlabathe le tala 100 Lehlabathe le hlabang, Phenolic resin 1.0-3.0 (boima ba lehlabathe le tala), Hexamethylenetetramine (tharollo ea metsi 2) 10-15 (boima ba resin), Calcium stearate 5-7 (boima ba resin), Additives 0.1-0.5 (boima ba lehlabathe le tala).1:2) 10-15 (boima ba resin), Calcium stearate 5-7 (boima ba resin), Additives 0.1-0.5 (boima ba lehlabathe le tala).
Mokhoa oa tlhahiso
Mokhoa oa ho lokisetsa haholo-holo o kenyelletsa ho roala ho batang, ho roala ka mofuthu le ho roala ho chesang.Hona joale, tlhahiso hoo e ka bang tsohle li amohela ho roala ho chesang.Mokhoa o chesang oa ho roala ke ho futhumatsa lehlabathe le tala ho mocheso o itseng, ebe o kopanya le ho hlohlelletsa le resin, urotropine aqueous solution le calcium stearate ka ho latellana, ebe o pholile, o silakanya le skrine.Ka lebaka la phapang ea motsoako, mokhoa oa ho kopanya o fapane.Hajoale, ho na le mefuta e mengata ea mela ea tlhahiso China.Ho na le mela e ka bang 2000 ~ 2300 ea semi-automatic e nang le phepelo ea letsoho, 'me ho na le mela e ka bang 50 e laoloang ke likhomphutha ka botlalo, e ntlafatsang katleho ea tlhahiso le botsitso ba sehlahisoa.Mohlala, mohala o ikemetseng oa tlhahiso ea pono oa xx Casting Co., Ltd. o na le taolo ea nako ea ho fepa ea metsotsoana e 0.1, taolo ea mocheso oa mocheso oa 1/10 ℃, 'me boemo ba ho kopanya lehlabathe bo ka bonoa ka linako tsohle ka video. , ka katleho ea tlhahiso ea lithane tse 6 ka hora.
Melemo ea ts'ebetso
Mokelikeli o babatsehang
E koahetsoe ka resin e tiileng 'me e bonahala e le lehlabathe le omeletseng.Mokelikeli o babatsehang ke molemo oa oona o moholo ka ho fetisisa, o loketseng ka ho khetheha bakeng sa li-cores tse rarahaneng le tse nyenyane tsa lehlabathe.
E babatsehang holim'a boleng ba lehlabathe konokono
E kopantsoe ke ho phatloha ha sethunya, 'me bokaholimo ba mokokotlo oa lehlabathe bo teteaneng ebile bo boreleli, bo ka ntlafatsang ka nepo pheletso ea ho lahla.
Theko e tlase ea ho etsa likhetla tsa mantlha
E na le ntlha e phahameng ea ho qhibiliha 'me e ka sebelisoa bakeng sa ho etsa likhetla tsa mantlha, ka tšebeliso e fokolang ea lehlabathe, litšenyehelo tse tlaase le ho kenella ha moea ho betere.
Matla a phahameng le botsitso ba mocheso
e sebelisa thermoplastic phenolic resin, e na le matla a phahameng le botsitso ba mocheso, e leng se fanang ka melemo e ikhethang ts'ebetsong ea likarolo tse ling tse teteaneng le tse kholo.
Nako e telele ea polokelo ea lehlabathe la mantlha
Alkaline phenolic resin e sebelisoang lehlabatheng le koahetsoeng ke hydrophobic, mokokotlo oa lehlabathe o na le ho hanyetsa mongobo hantle, ha ho na litlhoko tse khethehileng bakeng sa tikoloho ea polokelo, 'me ha ho na ho fokotseha ho hoholo ha matla ka mor'a ho boloka nako e telele.
Mefuta e mengata ea ts'ebeliso
Mokotla oa lehlabathe o koahetsoeng o loketse mekhoa ea ho lahla ea lisebelisoa tsohle tsa tšepe.
If you want to know more about shell mold casting process, pls feel free to contact lydia@welongchina.com.
Nako ea poso: Jun-13-2024
