Investment casting (lost wax casting) ke mokhoa oa ho lahla ka mokhoa o nepahetseng o ka hlahisang lintlha tse rarahaneng tsa sebopeho sa marang-rang ho sebelisa mokhoa oa ho ikatisa oa 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.
Ho ea ka li-binders tse fapaneng bakeng sa mohaho oa likhetla, ts'ebetso ea lichelete e ka aroloa ka silika sol binder investing casting, metsi a glass binder investing casting le investing ea matsete ka metsoako ea bona e le lisebelisoa tse tlamang.
Khalase ea metsi, e tsejoang hape e le Sodium Silicate, ke mofuta oa silicate ea tšepe ea alkali e qhibilihang, e nang le khalase e tiileng 'me e etsa tharollo ea khalase ea metsi ha e qhibiliha ka metsing. Ho ea ka phapang ea litšepe tsa alkali tse teng, ho na le mefuta e 'meli ea likhalase tsa metsi a potasiamo le khalase ea metsi a soda. Ea ho qetela e qhibiliha habonolo metsing, e na le litšila tse fokolang, 'me e na le ts'ebetso e tsitsitseng. Ka hona, khalase ea metsi bakeng sa ho etsa lichelete ke khalase ea metsi a sodium, e leng Na20 · mSiO2, Tharollo e hlakileng ea colloidal aqueous e entsoeng ka mor'a hydrolysis. Likarolo tse kholo tsa lik'hemik'hale tsa khalase ea metsi ke silicon oxide le sodium oxide. Ho phaella moo, e boetse e na le palo e nyenyane ea litšila. Khalase ea metsi ha se motsoako o le mong, empa ke motsoako oa metsoako e mengata.
Ts'ebetsong ea ho etsa matsete, mochini oa likhalase tsa metsi le ho roala li na le ts'ebetso e tsitsitseng, theko e tlase, potoloho e khuts'oane ea ho etsa likhetla le kopo e bonolo. Mokhoa oa ho etsa likhetla tsa khalase ea metsi o loketse tlhahiso ea lichelete tsa lichelete tse kang carbon steel, low-alloy steel, cast iron, koporo le aluminium alloys tse hlokang boleng bo tlase ba holim'a metsi.
Mechini e tloahelehileng ea tšepe ea tšepe e lahlang likarolo tsa lisebelisoa kats'ebetso ea ho lahla chelete e lahlehilengka khalase ea metsi (e leng tharollo e nang le metsi a sodium silicate) e le lisebelisoa tse tlamang bakeng sa ho etsa likhetla. Boleng ba ho etsa likhetla bo susumetsa ho nepahala ha li-castings tsa ho qetela 'me ka hona ke ts'ebetso ea bohlokoa haholo nakong ea ho kenya chelete. Boleng ba khetla bo amana ka ho toba le ho ba thata le ho mamellana ha mahlakore a ho qetela. Ka hona, ke mosebetsi oa bohlokoa bakeng sa setsi sa lichelete ho khetha mokhoa o loketseng oa ho etsa khetla ea hlobo.Ho ea ka likhomaretsi tse fapaneng kapa lisebelisoa tse tlamang ho etsa khetla ea hlobo, hlobo ea matsete e ka aroloa ka likhetla tsa sekhomaretsi tsa khalase ea metsi, likhetla tsa sekhomaretsi tsa silika, likhetla tsa sekhomaretsi tsa ethyl silicate le likhetla tse kopaneng tsa ethyl silicate-silica sol. Mekhoa ena ea ho etsa mohlala ke mekhoa e sebelisoang haholo ho tsetela.
Mold Shell ka Glass ea Metsi (tharollo e nang le metsi a sodium silicate)
Ts'ebetso ea matsete e hlahisoang ke khetla ea likhalase tsa metsi e na le mahlahahlaha a holimo, ho nepahala ha maemo a tlase, potoloho e khuts'oane ea ho etsa likhetla le theko e tlase. Ts'ebetso ena e sebelisoa haholo ho lahla tšepe ea carbon, tšepe e tlase ea alloy, alloy ea aluminium le motsoako oa koporo.
Mold Shell ka Silica Sol Shell (phatlalatso ea likaroloana tsa silika tsa nano-scale metsing kapa solvent)
The silika sol investment casting e na le bohlasoa bo tlase, ho nepahala ha maemo a holimo, le potoloho e telele ea ho etsa likhetla. Ts'ebetso ena e sebelisoa haholo ho li-alloy castings tse sa keneleng mocheso, li-castings tsa tšepe tse sa keneleng mocheso, li-casting tsa tšepe e sa hloekang, li-casting tsa tšepe ea carbon, li-cast alloy castings, li-aluminium alloy castings le li-copper alloy castings.
Mold Shell ka Ethyl Silicate Shell
Ha ho etsoa matsete, li-castings tse entsoeng ka ho sebelisa ethyl silicate e le setlamo ho etsa hore khetla e be le mahlahahlaha a tlaase, ho nepahala ho phahameng, le potoloho e telele ea ho etsa likhetla. Ts'ebetso ena e sebelisoa haholo ho li-castings tsa alloy tse sa keneleng mocheso, li-castings tsa tšepe tse sa keneleng mocheso, li-casting tsa tšepe tse sa hloekang, li-castings tsa carbon steel, li-cast alloy castings, li-aluminium alloy castings le li-copper alloy castings.
Tšepe ea carbon, tšepe e tlaase ea alloy, le lisebelisoa tsa tšepe tsa lisebelisoa li sebelisoa ho tse 'maloalisebelisoa tsa indasterile tikoloho. Ka limaraka tsa tsona tse ngata, tšepe le li-alloys tsa tsona li ka phekoloa ka mocheso ho ntlafatsa chai ea eona le matla a tsitsitseng; le, lokisa bothata kapa ductility litlhoko tsa kopo ea moenjiniere kapa thepa e lakatsehang ea mochine.
Lisebelisoa tsa matsete a tšepe tse sa sebetseng ke likarolo tsa ho lahla tse hlahisoang ke mokhoa o lahlehileng oa matsete a entsoeng ka tšepe ea alloy e sa sebetseng. Ho RMC Foundry, lits'ebetso tsa mantlha tsa ho lahla lehlabathe tseo re ka li sebelisang bakeng sa tšepe e sa sebetseng ea alloy ke ho lahla lehlabathe le letala, ho lahla lehlabathe le koahetsoeng ka lehlabathe, ho lahla hlobo ea lehlabathe le sa bakeng, ho lahlela foam, vacuum casting le ho etsa matsete. Phekolo ea mocheso, kalafo ea holim'a metsi le mochini oa CNC li fumaneha hape fekthering ea rona ho latela litšoantšo le litlhoko tsa hau.
Har'a mefuta e mengata e fapaneng ea li-alloys, tšepe ea tšepe e sa sebetseng ke tšepe e sebelisoang haholo. Tšepe ea tšepe e sa sebetseng haholo e ntlafatsa ho hanyetsa ha tšepe ea tšepe ka ho kenyelletsa lintho tse fapaneng tsa motsoako, joalo ka manganese, chromium, carbon, joalo-joalo, ho motsoako. Ka nako e ts'oanang, ho hanyetsa ho roala ha li-castings tsa tšepe tse sa tsitsang ho boetse ho itšetlehile ka mokhoa oa phekolo ea mocheso o sebelisoang ke setsi le sebopeho sa ho lahla.
Ho ea ka litšoaneleho tse fapaneng tsa moaparo, moaparo oa li-castings tsa tšepe o ka aroloa ka moaparo o hohelang, oa sekhomaretsi, mokhathala, moaparo oa kutu le moaparo o mobe. Lisebelisoa tsa tšepe tse sa sebetseng li sebelisoa haholo-holo masimong a indasteri a nang le maemo a thata a ho sebetsa le litlhoko tse phahameng tsa ts'ebetso ea mochini, joalo ka merafo, tšepe, kaho, matla, petrochemical, paballo ea metsi, temo le liindasteri tsa lipalangoang. Lisebelisoa tsa tšepe tse sa sebetseng hangata li sebelisoa maemong a abrasion a nang le mojaro o itseng oa tšusumetso, joalo ka lisebelisoa tsa ho sila, li-excavator, li-crusher, literekere, joalo-joalo.
| Kereiti e lekanang ea Cast Alloy Steel ho tsoa ho Limmaraka tse Fapaneng | |||||||||
| LIHLOPHA | AISI | W-stoff | DIN | BS | SS | HLOMPHO | UNE / IHA | JIS | UNI |
| Tšepe ea Alloy e tlase | 9255 | 1.0904 | 55 Sis7 | 250 A 53 | 2090 | 55 S 7 | 56Si7 | - | 5SSi8 |
| 1335 | 1.1167 | 36 Mn 5 | 150 M 36 | 2120 | 40 M5 | 36Mn5 | SMn 438(H) | - | |
| 1330 | 1.1170 | 28 Mh 6 | 150 M 28 | - | 20 M5 | - | SCMn1 | C28MN | |
| P4 | 1.2341 | X6 CrMo 4 | - | - | - | - | - | - | |
| 52100 | 1.3505 | 100Kr 6 | 534 A99 | 2258 | 100C 6 | F.131 | SUJ 2 | 100Cr6 | |
| A204A | 1.5415 | 15 Mots 3 | 1501 240 | 2912 | 15D 3 | 16 Mo3 | Boemo ba STBA 12 | 16Mo3 KW | |
| 8620 | 1.6523 | 21 NiCrMo 2 | 805 M 20 | 2506 | 20 NCD 2 | F.1522 | SNCM 220(H) | 20NiCrMo2 | |
| 8740 | 1.6546 | 40NiCrMo22 | 311-Mofuta oa 7 | - | 40 NCD 2 | F.129 | SNCM 240 | 40NiCrMo2(KB) | |
| - | 1.6587 | 17CrNiMo6 | 820 A 16 | - | 18 NCD 6 | 14NiCrMo13 | - | - | |
| 5132 | 1.7033 | 34Kr4 | 530 A 32 | - | 32C 4 | 35Kr4 | SCr430(H) | 34Cr4(KB) | |
| 5140 | 1.7035 | 41Kr 4 | 530 A40 | - | 42C2 | 42Kr4 | SCr 440 (H) | 40Cr4 | |
| 5140 | 1.7035 | 41Kr 4 | 530 A40 | - | 42C2 | 42Kr4 | SCr 440 (H) | 41Cr4 KB | |
| 5140 | 1.7045 | 42Kr4 | 530 A40 | 2245 | 42 C 4 TS | F.1207 | Setšoantšo sa SC440 | - | |
| 5115 | 1.7131 | 16 MnCr 5 | (527 M 20) | 2511 | 16 MC5 | F.1516 | - | 16MnCr5 | |
| 5155 | 1.7176 | 55Kr3 | 527 A 60 | 2253 | 55C 3 | - | SUP 9(A) | 55Kr3 | |
| 4130 | 1.7218 | 25 CrMo 4 | 1717CDS 110 | 2225 | 25 CD4 | F.1251/55Cr3 | SCM 420 / SCM430 | 25CrMo4(KB) | |
| 4135 (4137) | 1.7220 | 35 CrMo 4 | 708 A 37 | 2234 | 35 CD4 | 34 CrMo 4 | SCM 432 | 34CrMo4KB | |
| 4142 | 1.7223 | 41 CrMo 4 | 708 M 40 | 2244 | 42 CD 4 TS | 42 CrMo 4 | Setšoantšo sa SCM440 | 41 CrMo 4 | |
| 4140 | 1.7225 | 42 CrMo 4 | 708 M 40 | 2244 | 40 CD4 | F.1252 | Setšoantšo sa SCM440 | 40CrMo4 | |
| 4137 | 1.7225 | 42 CrMo 4 | 708 M 40 | 2244 | 42 CD4 | F.1252 | Setšoantšo sa SCM440 | 42CrMo4 | |
| A387 12-2 | 1.7337 | 16 CrMo 4 4 | 1501 620 | 2216 | 15 CD 4.5 | - | - | 12CrMo910 | |
| - | 1.7361 | 32CrMo12 | 722 M 24 | 2240 | 30 CD 12 | F.124.A | - | 30CrMo12 | |
| A182 F-22 | 1.7380 | 10 CrMo9 10 | 1501 622 | 2218 | 12 CD 9,10 | F.155 / TU.H | - | 12CrMo9 10 | |
| 6150 | 1.8159 | 50 krV4 | 735 A50 | 2230 | 50 CV4 | F.143 | SUP 10 | 50CrV4 | |
| - | 1.8515 | 31 CrMo 12 | 722 M 24 | 2240 | 30 CD 12 | F.1712 | - | 30CrMo12 | |
| - | - | - | - | - | - | - | - | - | |
| Tšepe ea Alloy e Bohareng | W1 | 1.1545 | C105W1 | BW1A | 1880 | Y105 | F.5118 | SK 3 | C100 KU |
| L3 | 1.2067 | 100Cr6 | BL 3 | (2140) | Y 100 C 6 | F.520 L | - | - | |
| L2 | 1.2210 | 115 CrV 3 | - | - | - | - | - | - | |
| P20 + S | 1.2312 | 40 CrMnMoS 8 6 | - | - | 40 CMD 8 +S | X210CrW12 | - | - | |
| - | 1.2419 | 105WCr6 | - | 2140 | 105W C 13 | F.5233 | SKS 31 | 107WCr5KU | |
| O1 | 1.2510 | 100 MnCrW 4 | BO1 | - | 90MnWCRV5 | F.5220 | (SK53) | 95MnWCr5KU | |
| S1 | 1.2542 | 45 WCrV 7 | BS1 | 2710 | 55W20 | F.5241 | - | 45WCrV8KU | |
| 4340 | 1.6582 | 34 CrNiMo 6 | 817 M 40 | 2541 | 35 NCD 6 | F.1280 | SNCM 447 | 35NiCrMo6KB | |
| 5120 | 1.7147 | 20 MnCr 5 | - | - | 20 MC5 | - | - | - | |
| - | - | - | - | - | - | - | - | - | |
| Tool le High Alloy Steel | D3 | 1.2080 | X210 Cr 12 | BD3 | 2710 | Z200 C 12 | F.5212 | SKD 1 | X210Cr13KU |
| P20 | 1.2311 | 40 CrMnMo 7 | - | - | 40 CMD 8 | F.5263 | - | - | |
| H13 | 1.2344 | X40CrMoV 5 1 | BH13 | 2242 | Z 40 CDV 5 | F.5318 | SKD 61 | X40CrMoV511KU | |
| A2 | 1.2363 | X100 CrMoV 5 1 | BA2 | 2260 | Z100 CDV 5 | F.5227 | SKD 12 | X100CrMoV51KU | |
| D2 | 1.2379 | X155 CrMoV 12 1 | BD2 | 2310 | Z 160 CDV 12 | F.520.A | SKD11 | X155CrVMo121KU | |
| D4 (D6) | 1.2436 | X210 CrW 12 | BD6 | 2312 | Z200 CD 12 | F.5213 | SKD 2 | X215CrW121KU | |
| H21 | 1.2581 | X30WCRV9 3 | BH21 | - | Z30 WCV 9 | F.526 | SKD5 | X30WCRV 9 3 KU | |
| L6 | 1.2713 | 55NiCrMoV 6 | - | - | 55 NCDV 7 | F.520.S | SKT4 | - | |
| M 35 | 1.3243 | S6/5/2/5 | BM 35 | 2723 | 6-5-2-5 | F.5613 | SKH 55 | HS6-5-5 | |
| M2 | 1.3343 | S6/5/2 | BM2 | 2722 | Z 85 WDCV | F.5603 | SKH 51 | HS6-5-2-2 | |
| M 7 | 1.3348 | S2/9/2 | - | 2782 | 2 92 | - | - | HS2-9-2 | |
| HW 3 | 1.4718 | X45CrSi 9 3 | 401 S 45 | - | Z 45 CS 9 | F.3220 | SUH1 | X45CrSi8 | |
| - | 1.7321 | 20 MoCr 4 | - | 2625 | - | F.1523 | - | 30CrMo4 | |
| Tšepe e Matla ea Matla a Phahameng | A128 (A) | 1.3401 | G-X120 Mn 12 | BW10 | 2183 | Z 120 M 12 | F.8251 | SCMnH 1 | GX120Mn12 |
Bokhoni baInvestment Casting Foundry:
• Boholo ba Boholo: 1,000 mm × 800 mm × 500 mm
• Boima ba Boima: 0,5 kg - 100 kg
• Bokhoni ba Selemo: Lithane tse 2,000
• Lisebelisoa tsa Bond bakeng sa Kaho ea Shell: Silica Sol, Glass ea Metsi le metsoako ea tsona.
• Mamello: Ka Kopo.
Melemo eaLikarolo tsa ho Lahlela Matsete:
- Qetello e ntle le e boreleli ea bokaholimo
- Mamello e tiileng ea dimensional.
- Libopeho tse rarahaneng le tse rarahaneng tse nang le moralo o bonolo
- Bokhoni ba ho lahla marako a masesaane ka hona ke karolo e bobebe ea ho lahla
- Khetho e pharaletseng ea litšepe le li-alloys (tse nang le tšepe le tse se nang ferrous)
- Moralo ha o hlokehe moralong oa hlobo.
- Fokotsa tlhoko ea machining ea bobeli.
- Litšila tse tlaase.
| 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 |
