Raws li cov tooj liab-raws li alloys, tooj dag thiab bronze tuaj yeem tsim rau hauv qhov nyuaj heev, ua rau lawv zoo tagnrho rau covpeev casting txheej txheem. Kev hloov pauv tus nqi tas li tuaj yeem ua rau cov ntaub ntawv no tus nqi siab heev, ua rau cov khoom pov tseg kim heev, tshwj xeeb tshaj yog thaum txiav txim siab CNC machining thiab / lossis forging raws li cov txheej txheem tsim khoom los tsim koj qhov chaw casting. Ntshiab tooj liab tsis yog feem ntau cam khwb cia. Kev nqis peev (poob ciab) casting yog ib txoj hauv kev ntawm precision casting complex 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.
Brass yog ib qho alloy uas muaj tooj liab thiab zinc. Brass uas muaj tooj liab thiab zinc yog hu ua tooj dag zoo tib yam. Yog tias nws yog ntau hom alloys uas muaj ntau tshaj li ob lub ntsiab lus, nws yog hu ua tooj dag tshwj xeeb. Brass yog tooj liab alloy nrog zinc ua lub ntsiab tseem ceeb. Raws li zinc cov ntsiab lus nce, lub zog thiab plasticity ntawm cov alloy nce ntau, tab sis cov khoom siv kho tshuab yuav txo qis tom qab ntau tshaj 47%, yog li zinc cov ntsiab lus ntawm tooj dag yog tsawg dua 47%. Ntxiv nrog rau zinc, cam khwb cia tooj dag feem ntau muaj cov alloying xws li silicon, manganese, txhuas, thiab txhuas.
Casting tooj dag muaj cov khoom siv ntau dua li tooj liab, tab sis tus nqi qis dua bronze. Cam khwb cia tooj dag feem ntau yog siv rau lub hom phiaj dav dav bearing bushings, gears thiab lwm yam hnav-resistant qhov chaw thiab li qub thiab lwm yam corrosion-resistant qhov chaw. Brass muaj zog hnav tsis kam. Brass feem ntau yog siv los ua cov li qub, cov kav dej, txuas cov kav dej rau cov cua txias sab hauv thiab sab nraud, thiab cov radiators.
| 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 |
