China custom aluminium alloy castings byho lahla lehlabathele mekhoa ea ho lahla hlobo ea shell.
Lentsoe "Green Sand" le bolela boteng ba mongobo lehlabatheng le bōptjoang 'me le bontša hore hlobo ha e apehoa kapa e omisitsoe. Lehlabathe le tala lea chekoa ebe lea sebetsoa ho fana ka kabo e tsitsitseng ea boholo ba lijo-thollo. Ha ho sebetsoa bakeng sa ho boptjoa, letsopa la tlhaho lea eketsoa ho kopanya lijo-thollo hammoho.
Lerole la mashala (le tsejoang e le Sea Coal) le eketsoa ho laola boleng ba ho lahla nakong ea katoloso ea lehlabathe ha litšepe tse chesang li tšeloa ka har'a hlobo. Li-additives tse ling, tse kang pitch, cellulose le phofo ea silica, le tsona li sebelisoa. Tlatsetso e sebelisoang e itšetlehile ka tšepe ea tšepe. Lehlabathe le kopantsoe ka mullor kapa mixer, moo metsi le li-additives li kopantsoeng le lehlabathe.
Joale lehlabathe le se le loketse ho sebelisoa ho etsa hlobo. Ho na le mekhoa e mengata ea ho bopa empa mekhoa eohle e petetsa kapa e kopanya lehlabathe khahlanong le mohlala ho etsa setšoantšo sa karolo e tla behoa. Lipaterone li arotsoe ho lihalofo tsa hlobo kapa kuku ea hlobo ebe hlobo e koaloa ho etsa karoloana. Mefuta ea ho bopa e fapana ho tloha ho othomathike ka lebelo le phahameng ka lebelo le phahameng, ho bopa ha poleiti ea othomathiki, ho bopa ka botlolo e thata ea botlolo (e sebelisetsoang liforomo tse kholo) le ho bopa ha squeeze. Li-mold tse kholo li boetse li etsoa fatše 'me li entsoe ka letsoho. Kajeno, ho bōptjoa ho etsoa ka mokhoa o ikemetseng 'me liforomo li behoa holim'a thepa ea ho tšoara hlobo e lokelang ho tšeloa, ho lumella li-castings ho tiisa le ho pholile. Litlhophiso tsa lisebelisoa tsa ho tšoara hlobo li kenyelletsa mela ea indexing, looping line le mela ea koloi ea hlobo. Ho tšeloa ha tšepe ho ka finyelloa ka mokhoa o itekanetseng ka sebōpi se tšollang kapa ho isoa ho liforomo ka ladles. Bokhoni ba ladle bo ka fapana ka boholo ho tloha ho liponto tse 100 ho isa ho lithane tse 'maloa.
Ka mor'a hore tšepe e ka har'a hlobo e tiee 'me e pholile, hlobo e lahleloa holim'a shakeout e arolang lintho tse entsoeng lehlabatheng. Ts'ebetso ea shakeout e ka etsoa ka lisebelisoa tse ngata tse fapaneng. Joale ho lahla ho tlosoa (ho aroloa ho tloha tsamaisong ea semathi). Sistimi ea semathi e sebelisetsoa ho kenya tšepe ka har'a sekoti sa ho lahla. Sistimi ea semathi e khutlisetsoa lefapheng la ho qhibiliha hore e sebelisoe hape 'me li-castings li romelloa ho qetela. Lehlabathe le sebelisoa hape ka mor'a hore le hloekisoe le ho pholile. Lehlabathe le lecha le boetse le eketsoa ho latela karo-karolelano ea tšepe e tšetsoeng lehlabatheng le itseng.
Ho lahla ho qala ka ho phatloha ho hoholo ho tlosa lehlabathe le khomaretsoeng. Sebaka sa ho qetela se ka etsoa ka mokhoa o ikemetseng, ho sebelisoa liroboto le tsamaiso ea Pono, kapa e ka ba mokhoa o bonolo oa matsoho o sebelisoang ka letsoho. Mefuta e tloaelehileng ea mosebetsi oa ho qeta e kenyelletsa ho sila ka mabili, ho sila lebanta, ho khaola mochine oa khatiso, ho khaola li-saha, ho khaola moea le ho sila ka letsoho. Mokhoa o sebelisoang o itšetlehile ka tšepe ea tšepe le boholo ba ho lahla.
Aluminium le li-alloys tsa eona li ne li ka lahleloa 'me tsa tšeloa ka khatello e phahameng ea lefu, ho lahlela lefu la khatello e tlase, ho lahlela matla a khoheli, ho akhela lehlabathe, ho lahla matsete lefoam e lahlehileng. Hangata, li-aluminium alloy castings li na le boima bo fokolang empa li rarahane le bokaholimo bo betere.
Seo re se Lahlelang Aluminium Alloy ka Mokhoa oa ho Lahlela Lehlabathe:
• Cast Aluminium Alloy ka China Standard: ZL101, ZL102, ZL104
• Cast Aluminium Alloy ke USA Stardard: ASTM A356, ASTM A413, ASTM A360
• Cast Aluminium Alloy ke li-Starndards tse ling: AC3A, AC4A, AC4C, G-AlSi7Mg, G-Al12
| Kopantsoeng | Mokhatlo oa Aluminium | Matla BHN | Matla a ho qetela, MPa | Kotulo Matla, MPa | Modulus ea elasticity, GPA | Mokhathala Matla, MPa |
| A03550 | AA355.0 | 75-105 | 255 | 185 | 70.3 | 69.0 |
| A03600 | AA360.0 | 75.0 | 300 | 170 | 71.0 | 138.0 |
| A03800 | AA380.0 | 80.0 | 317 | 159 | 71.0 | 138.0 |
| A03830 | AA383.0 | 75.0 | 310 | 152 | / | 145.0 |
| A03840 | AA384.0 | 85.0 | 331 | 165 | / | 140.0 |
| A03900 | AA390.0 | 120.0 | 280 | 240 | 81.2 | 140.0 |
| A04130 | AA413.0 | 80.0 | 296 | 145 | 71.0 | 130.0 |
| A04430 | AA443.0 | 30-60 | 145 | 48.3 | 71.0 | / |
| A05180 | AA518.0 | 80.0 | 310 | 193 | 69.0 | 160.0 |
Litšobotsi tsa Aluminium Alloy Castings:
• Ts'ebetso ea ho lahla e tšoana le ea li-castings tsa tšepe, empa thepa e amanang le mochini e fokotseha haholo ha botenya ba lebota bo ntse bo eketseha.
• Botenya ba marako ha boa lokela ho ba bo boholo haholo, 'me likarolo tse ling tsa sebopeho li tšoana le tsa li-castings tsa tšepe.
• Boima bo bobebe empa sebopeho se rarahaneng
• Litšenyehelo tsa ho lahlela ka kg ea li-castings tsa aluminium li phahame ho feta tsa tšepe le tšepe ea tšepe.
• Haeba e hlahisoa ka mokhoa oa "die casting", theko ea hlobo le mohlala e tla ba holimo haholo ho feta mekhoa e meng ea ho lahla. Ka hona, li-casting tsa aluminium tsa die casting li tla ba tse loketseng bakeng sa ho lahlela ka bongata bo boima.
| Sebopeho se Tloaelehileng sa Lik'hemik'hale sa Investment Casting Aluminium Alloy ka Litlhaloso tsa Amerika Leboea | ||||||||||||||
| Alloy Grade | Tlhaloso | Al | Cu | Si | Zn | Mg | Cr | Fe | Mn | Ti | Ag | Be | Ni | P |
| A356-T6 | AMS 4218 | Bal | 0.20 | 6. 5 - 7. 5 | 0.10 | 0.25-0.45 | - | 0.20 | 0.10 | 0.20 | - | -- | - | - |
| A357 | AMS 4219 | Bal | 0.20 | 6. 5 - 7. 5 | 0.10 | 0.40-.70 | - | 0.20 | 0.10 | 0.04-0.20 | - | 0.04-0.07 | - | - |
| F 357 | AMS 4289 | Bal | 0.20 | 6.5-7.5 | 0.10 | 0.40-.70 | - | 0.10 | 0.10 | 0.04-0.20 | - | 0.002 | - | - |
| E 357 | AMS 4288 | Bal | - | 6.5-7.5 | 0.10 | 0.55-0,60 | - | 0.10 | 0.10 | 0.10-0.20 | - | 0.002 | - | - |
| A201 | AMS 4229 | Bal | 4.0-5.0 | 0.05 | - | 0.15-0,35 | - | 0.10 | 0.20-0.34 | 0.15-0,35 | 0.40-1.0 | - | - | - |
| C355 | AMS 4215 | Bal | 1.0-1.5 | 4.5-5.5 | 0.10 | 0.40-0,60 | - | 0.20 | 0.10 max | 0.20 | - | - | - | - |
| A206 | AMS 4235 | Bal | 4.2-5.0 | .05max | 0.05 max | 0.20-0,35 | - | 0.10ma | 0.20-0,50 | 0.15-0.30 | - | - | 0.5 max | - |
| B206 | Bal | 4.2-5.0 | .05max | 0.05 max | 0.15-0,35 | - | 0.10 max | 0.20-0,50 | 0 10 | - | - | 0.5 max | - | |
