Investment ho lahla, eo hape e tsejoang ka ho lahleheloa ke boka ba boka kapaho etsa ka nepo, e bua ka ho thehoa ha ceramic ho pota-pota mekhoa ea boka ba linotsi ho etsa hlobo e ngata kapa e le 'ngoe ho amohela tšepe e qhibilihisitsoeng. Ts'ebetso ena e sebelisa mokhoa o ka tšeptjoang oa ente e entsoeng ka boka ho fihlela mefuta e rarahaneng e nang le litšobotsi tse ikhethang tsa bokaholimo. Ho etsa hlobo, mohlala oa boka, kapa lihlopha tsa lipaterone, li qoelisoa ka har'a thepa ea ceramic ka makhetlo a 'maloa ho haha khetla e teteaneng. Mokhoa oa de-wax o lateloa ke mokhoa o omileng oa khetla. Joale khetla ea ceramic e se nang boka e hlahisoa. Ka mor'a moo, tšepe e qhibilihisitsoeng e tšeloa ka har'a likhetla tsa likhetla kapa sehlohlolong, 'me hang ha e tiile 'me e pholile, khetla ea ceramic e ea robeha ho senola ntho ea ho qetela ea tšepe. Lits'oants'o tse nepahetseng tsa matsete li ka fihlella ho nepahala ho ikhethang bakeng sa likarolo tse nyane le tse kholo tsa ho lahla thepa ka mefuta e mengata e fapaneng.
Mehato ea Ts'ebetso ea ho Lahlela Matsete:
Nakong ea ts'ebetso ea lichelete tsa lichelete, mohlala oa boka o koahetsoe ka thepa ea ceramic, eo, ha e thatafalitsoe, e amohelang geometry ea ka hare ea ho lahla ho lakatsehang. Maemong a mangata, likarolo tse ngata li kopantsoe hammoho bakeng sa ts'ebetso e phahameng ka ho hokela mekhoa ea boka e le 'ngoe ho thupa e bohareng ea boka e bitsoang sprue. Boka bo qhibilihisoa ka ntle ho mohlala - ke kahoo hape bo tsejoang e le mokhoa o lahlehileng oa boka - 'me tšepe e qhibilihisitsoeng e tšeloa ka mokoting. Ha tšepe e tiisa, hlobo ea ceramic e sisinyeha, e siea sebopeho se haufi sa marang-rang se lakatsehang, se lateloa ke ho qeta, ho hlahloba le ho paka.
Lits'ebetso tsa Investment Castings li sebelisetsoa eng?
Investment castingsli sebelisoa haholo lipompong le li-valve, likoloi, literaka, li-hydraulics, literaka tsa forklift le liindasteri tse ling tse ngata. Ka lebaka la mamello ea bona e ikhethang ea ho lahla le qetello e ntle, li-castings tse lahlehileng li sebelisoa le ho feta. Haholo-holo, lihlahisoa tsa lichelete tsa tšepe tse sa hloekang li phetha karolo ea bohlokoa mohahong oa likepe le liketsoaneng hobane li na le ts'ebetso e matla e khahlanong le mafome.
Ho na le mabaka a 'maloa a ho khethaMotheo oa ho etsa matsete a RMCjoalo ka mohloli oa hau oa ho etsa matsete, tsena li kenyelletsa:
- Bohareng ba boenjiniere bo nang le tsepamiso ea tšepe
- Boiphihlelo bo pharalletseng ka li-geometri tse rarahaneng le likarolo tse thata ho li etsa
- Mefuta e mengata e fapaneng ea lisebelisoa, ho kenyeletsoa li-alloys tse nang le ferrous le non-ferrous
- Bokhoni ba ho etsa mochini oa CNC ka tlung
- Tharollo e le 'ngoe ea ho etsa matsete le ts'ebetso ea bobeli
- Boleng bo tsitsitseng bo tiisitsoe
- Tšebelisano 'moho ho kenyeletsoa baetsi ba lisebelisoa, baenjiniere, setsebi, setsebi sa machini le litsebi tsa tlhahiso.
Joalo ka li-alloys tse thehiloeng ho koporo, koporo le boronse li ka etsoa likarolo tse rarahaneng haholo, li etsa hore e be tse loketseng bakeng sats'ebetso ea ho lahlela matsete. Ho feto-fetoha ha litšenyehelo kamehla ho ka etsa hore thepa ena e be bonolo haholo ho theko e boima haholo, e leng se etsang hore litšila li theko e boima haholo, haholo-holo ha u nahana ka machining a CNC le / kapa ho qhekella e le mokhoa oa ho hlahisa likarolo tsa hau tsa ho lahlela. Hangata koporo e hloekileng ha e sebelisoe. Investment (lost wax) ho lahla ke mokhoa o nepahetseng oa ho lahla lintlha tse haufi-ufi le sebopeho sa marang-rang ho sebelisa ho pheta-pheta ha mekhoa ea boka. Ho lahlela matsete kapa boka ba bokae ke mokhoa oa ho etsa tšepe oo ka tloaelo o sebelisang mohlala oa boka o pota-potiloeng ke khetla ea ceramic ho etsa hlobo ea ceramic. Ha khetla e omella, boka ba linotsi boa qhibiliha, ebe ho sala hlobo feela. Ebe karolo ea ho lahla e thehoa ka ho tšela tšepe e qhibilihisitsoeng ka har'a hlobo ea ceramic.
Brass ke motsoako o entsoeng ka koporo le zinki. Brass e entsoeng ka koporo le zinki e bitsoa koporo e tloaelehileng. Haeba e le mefuta e fapaneng ea li-alloys e entsoeng ka likarolo tse fetang tse peli, e bitsoa koporo e khethehileng. Brass ke motsoako oa koporo o nang le zinki e le ntho e ka sehloohong. Ha lihlahisoa tsa zinki li ntse li eketseha, matla le polasetiki ea alloy li eketseha haholo, empa thepa ea mochine e tla fokotseha haholo ka mor'a ho feta 47%, kahoo zinki tsa koporo li ka tlaase ho 47%. Ho phaella ho zinki, koporo e entsoeng hangata e na le lisebelisoa tsa alloying tse kang silicon, manganese, aluminium le lead.
Brass ea ho lahla e na le lisebelisoa tse phahameng ho feta boronse, empa theko e tlase ho feta boronse. Cast brass hangata e sebelisoa molemong oa ho jara lihlahla, lihlahla, likere le likarolo tse ling tse manganga le li-valve le likarolo tse ling tse sa jeng. Brass e na le khanyetso e matla ea ho apara. Hangata koporo e sebelisoa ho etsa li-valve, liphaephe tsa metsi, liphaephe tse hokahanyang bakeng sa li-air conditioner tse ka hare le tsa ka ntle, le li-radiator.
| Lisebelisoa tsaInvestment CastingTshebetso ho RMC Foundry | |||
| Sehlopha | China Kereiti | Sehlopha sa US | Jeremane Kereiti |
| Ferritic Stainless Steel | 1Cr17, 022Cr12, 10Cr17, | 430, 431, 446, CA-15, CA6N, CA6NM | 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4 |
| Martensitic Stainless Steel | 1Cr13, 2Cr13, 3Cr13, 4Cr13, | 410, 420, 430, 440B, 440C | 1.4021, 1.4027, 1.4028, 1.4057, 1.4059, 1.4104, 1.4112, 1.4116, 1.4120, 1.4122, 1.4125 |
| Austenitic tšepe e sa hloekang | 06Cr19Ni10, 022Cr19Ni10, 06Cr25Ni20, 022Cr17Ni12Mo2, 03Cr18Ni16Mo5 | 302, 303, 304, 304L, 316, 316L, 329, CF3, CF3M, CF8, CF8M, CN7M, CN3MN | 1.3960, 1.4301, 1.4305, 1.4306, 1.4308, 1.4313, 1.4321, 1.4401, 1.4403, 1.4404, 1.4405, 1.44404, 904,9 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581, 1.4582, 1.4584, |
| Pula Ho thatafatsa tšepe e sa hloekang | 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb | 630, 634, 17-4PH, 15-5PH, CB7Cu-1 | 1.4542 |
| Duplex Stainless Steel | 022Cr22Ni5Mo3N, 022Cr25Ni6Mo2N | A 890 1C, A 890 1A, A 890 3A, A 890 4A, A 890 5A, A 995 1B, A 995 4A, A 995 5A, 2205, 2507 | 1.4460, 1.4462, 1.4468, 1.4469, 1.4517, 1.4770 |
| Phahameng Mn Steel | ZGMn13-1, ZGMn13-3, ZGMn13-5 | B2, B3, B4 | 1.3802, 1.3966, 1.3301, 1.3302 |
| Tool Steel | Cr12 | A5, H12, S5 | 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12 |
| Tšepe e Hanang Mocheso | 20Cr25Ni20, 16Cr23Ni13, 45Cr14Ni14W2Mo | 309, 310, CK20, CH20, HK30 | 1.4826, 1.4828, 1.4855, 1.4865 |
| Nickle-base Alloy | HASTELLY-C, HASTELLY-X, SUPPER22H, CW-2M, CW-6M, CW-12MW, CX-2MW, HX(66Ni-17Cr), MRE-2, NA-22H, NW-22, M30C, M-35 -1, INCOLOLOY600, INCOLOLOY625 | 2.4815, 2.4879, 2.4680 | |
| Aluminium Alloy | ZL101, ZL102, ZL104 | ASTM A356, ASTM A413, ASTM A360 | G-AlSi7Mg, G-Al12 |
| Motsoako oa Koporo | H96, H85, H65, HPb63-3, HPb59-1, QSn6.5-0.1, QSn7-0.2 | C21000, C23000, C27000, C34500, C37710, C86500, C87600, C87400, C87800, C52100, C51100 | CuZn5, CuZn15, CuZn35, CuZn36Pb3, CuZn40Pb2, CuSn10P1, CuSn5ZnPb, CuSn5Zn5Pb5 |
| Cobalt-base Alloy | UMC50, 670, Kereiti ea 31 | 2.4778 | |
| PETETSO E HLAHALA MAMELLO | |||
| Li-inches | Limilimithara | ||
| Boemo | Mamello | Boemo | Mamello |
| Ho fihlela ho 0.500 | ±.004" | Ho fihlela ho 12.0 | ± 0.10mm |
| 0.500 ho isa ho 1.000" | ±.006" | 12.0 ho isa ho 25.0 | ± 0.15 limilimithara |
| 1.000 ho isa ho 1.500" | ±.008" | 25.0 ho isa ho 37.0 | ± 0.20mm |
| 1.500 ho isa ho 2.000" | ±.010" | 37.0 ho isa ho 50.0 | ± 0.25 limilimithara |
| 2.000 ho isa ho 2.500" | ±.012" | 50.0 ho isa ho 62.0 | ± 0.30 limilimithara |
| 2.500 ho isa ho 3.500" | ±.014" | 62.0 ho isa ho 87.0 | ± 0.35 limilimithara |
| 3.500 ho isa ho 5.000" | ±.017" | 87.0 ho isa ho 125.0 | ± 0.40mm |
| 5.000 ho isa ho 7.500" | ±.020" | 125.0 ho isa ho 190.0 | ± 0.50mm |
| 7.500 ho isa ho 10.000" | ±.022" | 190.0 ho 250.0 | ± 0.57mm |
| 10.000 ho isa ho 12.500" | ±.025" | 250.0 ho 312.0 | ± 0.60mm |
| 12.500 ho 15.000 | ±.028" | 312.0 ho isa ho 375.0 | ± 0.70mm |
