Pula e thatafatsa tšepe e sa hloekang, e bitsoang PH Steel, e bua ka mofuta oats'epe e sa beng le mabalie eketsang mefuta e fapaneng le bongata ba likarolo tse matlafatsang, 'me mefuta e fapaneng le bongata ba li-carbides, nitrides, carbonitrides le metsoako ea intermetallic li kenngoa ka mokhoa oa ho thatafatsa pula. Ho na le pula e thatafatsang tšepe e sa hloekang ha e na matla a phahameng feela, empa hape e na le matla a matle le ho hanyetsa ho bola. Tšepe e sa hloekang ea pula e thatafatsang e ka behoa sebakeng sa ronasetsi sa ho etsa licheleteho ea ka litšoantšo tsa hau, litlhoko le boemo ba tšebeliso.
Ho ea ka litaba tsa likarolo tsa mantlha tsa alloy ha ho na pula e thatafatsang tšepe e sa hloekang le lintho tse ling tse thatafatsang, tšepe e sa tsitsang ea pula e ka aroloa ka mekhahlelo e mene ho tse latelang:
(1)Martensitic Precipitation Ho thatafatsa tšepe e sa hloekang. Ka kakaretso e na le carbon ka tlase ho 0.1%. Matlafatsa ka ho eketsa likarolo tse thata (koporo, aluminium, titanium le aluminium, joalo-joalo) ho etsa hore ho be le ho hloka matla. Litaba tsa chromium ka kakaretso li phahame ho feta 17%, 'me palo e loketseng ea nickel e eketsoa ho ntlafatsa ho hanyetsa ho bola.
(2)Mocheso oa Maraging Ho thatafatsa tšepe e sa hloekang, e nang le khabone e seng holimo ho 0.03% ho netefatsa ho tiea, ho hanyetsa ho bola, ho chesehela le ho sebetsa ha matrix a martensite, le 12% chromium ho netefatsa ho hanyetsa ho bola. Ntle le moo, cobalt ea alloy element e eketsoa ho ntlafatsa ts'ebetso ea mocheso oa tšepe.
(3)Semi-Austenitic Precipitation E thatafatsa tšepe e sa hloekang, ke hore, pula ea nakoana e thatafatsa tšepe e sa hloekang, e nang le chromium e seng ka tlase ho 12%. E na le khabone e tlase, 'me aluminium ke eona ntho ea mantlha e thatafatsang pula. Mofuta ona oa pula o thatafatsang tšepe e sa hloekang o na le ts'ebetso e ntlafetseng ho feta pula ea martensitic e thatafatsang tšepe e sa hloekang.
(4)Austenitic Precipitation Ho thatafatsa tšepe e sa hloekangke tšepe e sa hloekang e nang le sebopeho se tsitsitseng sa austenite maemong a mabeli a tingoeng le a botsofali. Lintho tsa eona tsa nickel le manganese li holimo, 'me litaba tsa chromium li phahame ho feta 13% ho netefatsa hore ho na le ho hanyetsa ha kutu le ho hanyetsa oxidation. Ka nako e ts'oanang, pula e thata e thatafatsang tšepe e sa hloekang hangata e eketsa titanium, aluminium, vanadium kapa phosphorus e le lintho tse thatafatsang pula, 'me e eketsa palo e nyane ea boron, vanadium, nitrogen le lintho tse ling ho fumana thepa e phethahetseng.
Pula e thatafatsa tšepe e sa hloekang e sebelisoa haholo liindastering tse tsoetseng pele. Mohlala, pula e tloaelehileng e thatafatsang tšepe e sa hloekang ea 17-4PH e ka sebelisoa ho etsa meaho e ka tlase ho 370°C e hlokang ho hanyetsa ho bola, ho se mamelle, le matla a phahameng.
Mothehi oa RMCHlahisa Mephato e Latelang ea Pula Ho thatafatsa tšepe e sa hloekang
1- Litekanyetso tsa Sechaena: 05Cr15Ni5Cu4Nb, 05Cr17Ni4Cu4Nb
2- Maemo a Borithane: ANC20, ANC21, ANC22
3- Litekanyetso tsa Amerika: 630, 634, 17-4PH, 15-5PH, CB7Cu-1
4- Litekanyetso tsa Majapane: SCS24, SCS32
5- Tekanyetso ea Sejeremane: 1.4542
| Stainless Steel for Investment Casting Process ho RMC Foundry
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| 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 |
Nako ea poso: Jan-30-2021