Kev nqis peev casting (poob ciab casting) yog ib txoj kev ntawm precision casting txheej txheem uas tuaj yeem ua cov khoom lag luam nyob ze-net-puab cov ntsiab lus siv cov qauv ntawm cov qauv siv quav ciab. Kev nqis peev casting lossis poob ciab yog cov txheej txheem hlau uas feem ntau siv cov qauv siv quav ciab ncig los ntawm lub plhaub ceramic los ua cov pwm ceramic. Thaum lub plhaub dries, siv quav ciab yog melted tam sim ntawd, tawm tsuas yog cov pwm. Tom qab ntawd cov khoom siv casting yog tsim los ntawm cov hlau molten rau hauv cov pwm ceramic.
Raws li qhov sib txawv binders rau lub plhaub tsev, lub peev casting yuav muab faib ua silica sol binder peev casting, dej iav binder peev casting thiab peev casting nrog lawv cov khoom sib tov ua cov ntaub ntawv binder.
Dej iav, tseem hu ua Sodium Silicate, yog ib hom soluble alkali hlau silicate, uas yog glassy nyob rau hauv lub xeev thiab tsim ib tug dej iav kua thaum yaj nyob rau hauv dej. Raws li qhov sib txawv ntawm cov hlau alkali muaj, muaj ob hom potassium dej iav thiab dej qab zib iav dej. Cov tom kawg yog yooj yim soluble hauv dej, muaj tsawg impurities, thiab muaj kev ruaj ntseg. Yog li ntawd, cov iav dej rau peev casting yog sodium dej iav, uas yog Na20·mSiO2, pob tshab los yog translucent colloidal aqueous kua tsim tom qab hydrolysis. Cov khoom tseem ceeb ntawm cov iav dej yog silicon oxide thiab sodium oxide. Tsis tas li ntawd, nws kuj muaj me me ntawm impurities. Cov iav dej tsis yog ib qho sib xyaw ua ke, tab sis kev sib xyaw ntawm ntau lub tebchaw.
Hauv kev nqis peev casting txheej txheem, cov iav dej khi thiab txheej txheej muaj kev ua haujlwm ruaj khov, tus nqi qis, lub voj voog luv luv thiab daim ntawv thov yooj yim. Cov dej iav plhaub ua txheej txheem tsim nyog rau kev tsim cov peev txheej xws li carbon steel, low-alloy steel, cam khwb cia hlau, tooj liab thiab txhuas alloys uas yuav tsum tau tsawg dua qhov zoo.
Kev cai alloy steel casting machinery spare qhov chaw los ntawmpoob ciab peev casting txheej txheemnrog dej iav (lub aqueous tov ntawm sodium silicate) raws li cov ntaub ntawv binder rau plhaub ua. Qhov zoo ntawm lub plhaub ua rau muaj kev cuam tshuam qhov tseeb ntawm qhov kawg castings thiab yog li ntawd yog ib qho tseem ceeb heev thaum lub sij hawm peev casting. Qhov zoo ntawm lub plhaub yog ncaj qha ntsig txog qhov roughness thiab dimensional kam rau ua ntawm qhov kawg casting. Yog li ntawd, nws yog ib qho tseem ceeb ua hauj lwm rau lub peev casting foundry los xaiv ib txoj kev tsim tsim rau lub plhaub pwm.Raws li cov nplaum sib txawv los yog cov ntaub ntawv khi rau kev ua cov pwm pwm, peev casting pwm tuaj yeem muab faib ua cov iav dej nplaum, silica sol adhesive plhaub, ethyl silicate nplaum nplaum thiab ethyl silicate-silica sol composite shells. Cov qauv kev ua qauv no yog cov kev siv ntau tshaj plaws hauv kev nqis peev casting.
Pwm Plhaub los ntawm Dej iav (aqueous tov ntawm sodium silicate)
Lub peev casting tsim los ntawm cov dej iav plhaub casting muaj qhov siab ntawm qhov roughness, tsis tshua muaj qhov tseeb, luv plhaub-ua voj voog thiab tus nqi qis. Cov txheej txheem no yog siv dav hauv casting carbon steel, qis alloy steel, aluminium alloy thiab tooj liab alloy.
Pwm Plhaub los ntawm Silica Sol Plhaub (ib tug dispersion ntawm nano-scale silica hais nyob rau hauv dej los yog hnyav)
Lub silica sol peev casting muaj tsawg roughness, siab qhov tseeb qhov tseeb, thiab lub plhaub ntev ua lub voj voog. Cov txheej txheem no yog dav siv nyob rau hauv high-temperature tshav kub-resistant alloy castings, kub-resistant steel castings, stainless hlau castings, carbon hlau castings, tsawg alloy castings, aluminium alloy castings thiab tooj liab alloy castings.
Pwm Plhaub los ntawm Ethyl Silicate Plhaub
Nyob rau hauv peev casting, castings ua los ntawm kev siv ethyl silicate ua ib tug khi kom lub plhaub muaj tsawg nto roughness, siab seem raug, thiab lub plhaub ntev-ua voj voog. Cov txheej txheem no yog dav siv nyob rau hauv tshav kub-resistant alloy castings, tshav kub-resistant steel castings, stainless hlau castings, carbon steel castings, tsawg alloy castings, aluminium alloy castings thiab tooj liab alloy castings.
Cov pa roj carbon steel, cov hlau tsis tshua muaj hlau, thiab cov cuab yeej steel castings tau siv ntau yamcov ntawv thov kev lag luamthiab ib puag ncig. Nrog rau lawv cov qib ntau, steel thiab lawv cov alloys tuaj yeem raug kho kom sov los txhim kho nws cov txiaj ntsig thiab tensile lub zog; thiab, kho hardness los yog ductility rau tus engineer daim ntawv thov xav tau los yog xav tau txhua yam khoom.
Wear-resistant alloy steel peev castings yog cov casting qhov chaw tsim los ntawm poob ciab peev casting txheej txheem ua los ntawm hnav-resistant alloy steel. Ntawm RMC Foundry, cov txheej txheem xuab zeb tseem ceeb peb tuaj yeem siv rau kev hnav-resistant alloy steel yog ntsuab xuab zeb casting, resin coated xuab zeb casting, tsis muaj ci xuab zeb pwm casting, poob ua npuas ncauj casting, nqus casting thiab peev casting. Kev kho cua sov, kev kho deg thiab CNC machining kuj muaj nyob ntawm peb lub Hoobkas raws li koj cov duab kos thiab cov kev xav tau.
Ntawm ntau yam ntawm casting alloys, hnav-resistant cam khwb cia hlau yog ib tug heev lug siv hlau alloy. Hnav-resistant cam khwb cia hlau tsuas yog txhim kho qhov hnav tsis kam ntawm cov hlau castings los ntawm kev ntxiv cov ntsiab lus sib txawv ntawm cov ntsiab lus alloying, xws li manganese, chromium, carbon, thiab lwm yam, rau cov hlau. Nyob rau tib lub sijhawm, kev hnav tsis kam ntawm hnav-resistant steel castings kuj yog nyob ntawm txoj kev kho cua sov siv los ntawm cov foundry thiab cov qauv ntawm cov casting.
Raws li cov yam ntxwv sib txawv, kev hnav ntawm cov hlau castings tuaj yeem muab faib ua abrasive hnav, nplaum hnav, qaug zog hnav, hnav corrosion thiab fretting hnav. Wear-resistant steel castings yog tsuas yog siv nyob rau hauv industrial teb nrog complex ua hauj lwm tej yam kev mob thiab siab mechanical kev ua tau zoo, xws li mining, metallurgy, kev tsim kho, lub zog, petrochemical, dej txuag, kev ua liaj ua teb thiab kev lag luam tsheb thauj mus los. Wear-resistant steel castings feem ntau yog siv rau hauv kev puas tsuaj nrog qee yam kev cuam tshuam, xws li cov khoom sib tsoo, excavators, crushers, tsheb laij teb, thiab lwm yam.
| Qib sib npaug ntawm Cast Alloy Steel los ntawm kev lag luam sib txawv | |||||||||
| Pawg | AISI | W-stoff | DIN | BS | SS | AFNOR | UNE / IHA | JIS | UNI |
| Tsawg Alloy Steel | ib 9255 | 1.0904 ib | 55 ib 7 | 250 Ib 53 | 2090 ua | 55s 7 | 56 ib 7 | - | 5 xyi 8 |
| 1335 ib | 1.1167 ib | 36mn 5 | 150m36 ib | 2120 | 40m 5 | 36mn 5 | SMn 438 (H) | - | |
| 1330 ib | 1.1170 Nws | 28 mn6 | 150 M28 | - | 20m 5 | - | SCMn1 | C28 MN | |
| P4 | 1.2341 ib | X6 CrMo 4 | - | - | - | - | - | - | |
| 5 2100 | 1.3505 Nws | 100cr 6 | 534 ua 99 | 2258 ib | 100c 6 | F.131 | SUJ 2 | 100 cr6 | |
| A204 A | 1.5415 | 15 hmo 3 | 1501240 ib | 2912 ib | 15D 3 | 16 hmo 3 | SIB 12 | 16m3 kwm | |
| ib 8620 | 1.6523 ib | 21 NiCrMo 2 | 805m 20 | 2506 ib | 20 NCV 2 | F.1522 | SNCM 220 (H) | 20 NiCrMo2 | |
| ib 8740 | 1.6546 ib | 40 NiCrMo22 | 311-TSI 7 | - | 40 NCV 2 | F.129 | SIB 240 | 40 NiCrMo2 (KB) | |
| - | 1.6587 ib | 17 CrNiMo6 | 820a 16 | - | 18 NCV 6 | 14 NiCrMo13 | - | - | |
| 5132 ib | 1.7033 ib | 34 nc4 | 530 Ib 32 | - | 32c 4 | 35cr 4 | SCr430 (H) | 34Cr4 (KB) | |
| 5 140 | 1.7035 ib | 41cr 4 | 530a40 ib | - | 42c 2 | 42cr 4 | SCr 440 (H) | 40 cr4 | |
| 5 140 | 1.7035 ib | 41cr 4 | 530a40 ib | - | 42c 2 | 42cr 4 | SCr 440 (H) | 41 cr4 kwb | |
| 5 140 | 1.7045 ib | 42cr 4 | 530a40 ib | 2245 ib | 42 C 4 TS | F.1207 | SIB 440 | - | |
| 5 115 | 1.7131 ib | 16 NcR 5 | (527M 20) : kuv. | 2511 ib | 16 mc5 | F.1516 | - | 16MnCr5 | |
| 5155 ib | 1.7176 ib | 55cr 3 | 527a60 ib | 2253 ib | 55c 3 | - | SUP 9 (A) | 55cr 3 | |
| 4 130 | 1.7218 ib | 25 CrMo4 | 1717 AWV 110 | 2225 | 25 cd4 | F.1251/55Cr3 | SCM 420 / SCM 430 TSI | 25CrMo4 (KB) | |
| 4135 (4137) hnub | 1.7220 Nws | 35 CrMo4 | 708 ib 37 | 2234 ib | 35cd 4 | 34 CrMo4 | SIB 432 | 34CrMo4KB | |
| 4142 ib | 1.7223 ib | 41 CrMo 4 | 708m40 ib | 2244 ib | 42 CD 4 TS | 42 CrMo 4 | SIB 440 | 41 CrMo 4 | |
| 4 140 | 1.7225 ib | 42 CrMo 4 | 708m40 ib | 2244 ib | 40 cd4 | F.1252 | SIB 440 | 40 CrMo4 | |
| ib 4137 | 1.7225 ib | 42 CrMo 4 | 708m40 ib | 2244 ib | 42cd 4 | F.1252 | SIB 440 | 42CrMo4 | |
| A387 12-2 | 1.7337 ib | 16 CrMo4 4 | 1501620 ib | 2216 | 15 CD 4.5 | - | - | 12 ZPO 910 | |
| - | 1.7361 ib | 32 CrMo12 | 722m24 ib | 2240 | 30 cd12 | F.124.A | - | 30 CrMo12 | |
| A182 F-22 | 1.7380 ib | 10 CrMo9 10 | 1501622 ib | 2218 ib | 12 Ib., 9, 10 | F.155 / TU.H | - | 12 CrMo9 10 | |
| 6 150 | 1.8159 ib | 50 ncv 4 | 735a50 ib | 22 30 | 50 cv4 | F.143 | PAB 10 | 50cwv 4 | |
| - | 1, 8515 | 31 CrMo12 | 722m24 ib | 2240 | 30 cd12 | F.1712 | - | 30 CrMo12 | |
| - | - | - | - | - | - | - | - | - | |
| Nruab nrab Alloy Steel | W1 | 1.1545 Nws | C105W1 | BW1A | Xyoo 1880 | yog 105 | F.5118 | SK 3 | C100 UA |
| L3 | 1.2067 Nws | 100 cr6 | BL 3 | (2140) | Y100C 6 | F.520 L | - | - | |
| L2 | 1.2210 Nws | 115 ZPO 3 | - | - | - | - | - | - | |
| P20 + S | 1.2312 ib | 40 CrMnMoS 8 6 | - | - | 40 CMD 8 + S | X210CrW12 | - | - | |
| - | 1.2419 Nws | 105 AWV 6 | - | 2140 | 105 AWV 13 | F.5233 | SIB 31 | 107 AWV 5 | |
| O1 | 1.2510 Nws | 100 MnCrW 4 | BO 1 | - | 90mnwv 5 | F.5220 | (SK53) | 95MnWCr5KU | |
| S1 | 1.2542 ib | 45 AWV 7 | BS 1 | 2710 ib | 55 wb 20 | F.5241 | - | 45 AWV8 | |
| ib 4340 | 1.6582 ib | 34 NCV 6 | 817m 40 | 2541 ib | 35 NCV 6 | F.1280 Nws | TIAB SA 447 | 35 NiCrMo6KB | |
| 5 120 | 1.7147 ib | 20 MnCr 5 | - | - | 20 mc5 | - | - | - | |
| - | - | - | - | - | - | - | - | - | |
| Tool thiab High Alloy Steel | D3 | 1.2080 Nws | X210 Cr 12 | BD 3 | 2710 ib | Z200 C 12 | F.5212 | SKD 1 | X210Cr13KU |
| P20 | 1.2311 ib | 40 CrMnMo 7 | - | - | 40 ZPO 8 | F.5263 | - | - | |
| H13 | 1.2344 ib | X40CrMoV 5 1 | BH13 | 2242 ib | Z40 CDV 5 | F.5318 | SIB 61 | X40CrMoV511KU | |
| A2 | 1.236 3 | X100 CrMoV 5 1 | BA 2 | 2260 | Z100 CDV 5 | F.5227 | SKD 12 | X100CrMoV51KU | |
| D2 | 1.2379 ib | X155 CrMoV 12 1 | BD 2 | 2310 ib | Z 160 CDV 12 | F.520.A | SKD 11 | X155CrVMo121KU | |
| D4 (D6) | 1.2436 ib | X210 CrW 12 | BD 6 | 2312 ib | Z200 CD 12 | F.5213 | SKD 2 | X215CrW121KU | |
| H21 | 1.2581 Nws | Tx30WCrV9 3 | BH 21 | - | Z30 WCV 9 | F.526 | SKD 5 | X30WCrV 9 3 KU | |
| L6 | 1.2713 ib | 55 NiCrMoV 6 | - | - | 55 NCV 7 | F.520.S | SKT 4 | - | |
| M 35 | 1.3243 ib | S6/5/2/5 | BM 35 | ib 2723 | 6-5-2-5 | F.5613 | TSI 55 | HS6-5-5 | |
| M 2 | 1.3343 ib | S6/5/2 | BM 2 | 2722 ib | Z85 WDCV | F.5603 | SIB 51 | HS6-5-2-2 | |
| M 7 | 1.3348 ib | S2/9/2 | - | 2782 ib | 29 2 | - | - | NWS 2-9-2 | |
| HWM 3 | 1.4718 ib | Tx45CrSi 9 3 | 401 Ib. 45 | - | Z45 CS 9 | F.3220 | SUH 1 | X45CrSi8 | |
| - | 1.7321 ib | 20 ZPO 4 | - | 2625 ib | - | F.1523 | - | 30 CrMo4 | |
| High Tensile Strength Steel | A128 (A) | 1.3401 Nws | G-X120 Mn 12 | BW10 | 2183 ib | Z120 M 12 | f.825 1 | SCMnH 1 | GX120Mn12 |
Peev xwm ntawmKev nqis peev Casting Foundry:
• Max Loj: 1,000 mm × 800 mm × 500 mm
• Qhov hnyav: 0.5 kg - 100 kg
• Ib xyoos twg muaj peev xwm: 2,000 tons
• Bond Materials for Shell Building: Silica Sol, Dej iav thiab lawv cov khoom sib tov.
• Tolerances: Thaum Thov.
Qhov zoo ntawmKev nqis peev Casting Cheebtsam:
- Zoo heev thiab du nto tiav
- Tight dimensional tolerances.
- Cov duab sib txawv thiab sib txawv nrog kev tsim qauv yooj yim
- Muaj peev xwm cam khwb cia nyias phab ntsa yog li ib tug sib zog casting tivthaiv
- Kev xaiv dav ntawm cam khwb cia hlau thiab alloys (ferrous thiab non-ferrous)
- Cov qauv tsis tas yuav tsum muaj nyob rau hauv kev tsim pwm.
- Txo qhov xav tau rau kev ua haujlwm thib ob.
- Cov khoom siv tsawg tsawg.
| Khoom siv rauKev nqis peev CastingTxheej txheem ntawm RMC Foundry | |||
| Qeb | Tuam Tshoj Qib | US Qib | Lub teb chaws Yelemees Qib |
| Ferritic Stainless hlau | 1Cr17, 022Cr12, 10Cr17, | 430, 431, 446, CA-15, CA6N, CA6NM | 1.4000, 1.4005, 1.4008, 1.4016, GX22CrNi17, GX4CrNi13-4 |
| Martensitic Stainless hlau | 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 stainless hlau | 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, 1.4406, 1.4406, 1.4406, 1.4435, 1.4436, 1.4539, 1.4550, 1.4552, 1.4581, 1.4582, 1.4584, ib. |
| Precipitation Hardening Stainless hlau | 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb | 630, 634, 17-4PH, 15-5PH, CB7Cu-1 | 1.4542 ib |
| Duplex Stainless hlau | 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 TZS |
| Siab Mn Steel | ZGMn13-1, ZGMn13-3, ZGMn13-5 | B2, B3, B4 | 1.3802, 1.3966, 1.3301, 1.3302 |
| Cov cuab yeej hlau | Cr 12 | A5, H12, S5 | 1.2344, 1.3343, 1.4528, GXCrMo17, X210Cr13, GX162CrMoV12 |
| Thaum tshav kub kub Resistant hlau | 20Cr25Ni20, 16Cr23Ni13, 45Cr14Ni14W2Mo | 309, 310, CK20, CH20, HK30 | 1.4826, 1.4828, 1.4855, 1.4865 TZS |
| 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, TSI 600, TIAB SA 625 | 2.4815, 2.4879, 2.4680 | |
| Aluminium Alloy | ZL101, ZL102, ZL104 | Txuj: ASTM A356, ASTM A413, ASTM A360 | G-AlSi7Mg, G-Al12 |
| Copper Alloy | 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, Qib 31 | 2.4778 ib | |
| INVESTMENT CASTING TOLERANCES | |||
| Ntiv | millimeters | ||
| Dimension | Ua siab ntev | Dimension | Ua siab ntev |
| Mus txog 0.500 | ± .004 " | Mus txog 12.0 | ± 0.10 hli |
| 0.500 rau 1.000 " | ± 006 " | 12.0-25.0 Nws | ± 0.15 hli |
| 1.000 rau 1.500 " | ± 008 " | 25.0-37.0 Nws | ± 0.20 hli |
| 1.500 rau 2.000 " | ± .010 " | 37.0-50.0 Nws | ± 0.25 hli |
| 2.000-2.500 " | ± .012 " | 50.0 rau 62.0 | ± 0.30 hli |
| 2.500 rau 3.500 " | ± .014 " | 62.0 rau 87.0 | ± 0.35 hli |
| 3.500 rau 5.000 " | ± .017 " | 87.0 rau 125.0 | ± 0.40 hli |
| 5,000 rau 7,500 " | ± .020 " | 125.0 rau 190.0 | ± 0.50 hli |
| 7.500-10.000 " | ± 022 " | 190.0 rau 250.0 | ± 0.57 hli |
| 10,000 rau 12,500 " | ± .025 " | 250.0 rau 312.0 | ± 0.60 hli |
| 12.500-15.000 Nws | ± 028 " | 312.0 rau 375.0 | ± 0.70 hli |
