Sebopeho sa lik'hemik'hale le thepa ea mechine
Sebopeho sa Lik'hemik'hale
Kereiti ea tšepe |
C |
Si |
Mong |
P |
S |
Als |
Sehlopha sa AH32 |
≤0.18 |
≤0.50 |
0.9-1.6 |
≤0.035 |
≤0.035 |
≥0.015 |
Sehlopha sa DH32 |
≤0.18 |
≤0.50 |
0.9-1.6 |
≤0.035 |
≤0.035 |
≥0.015 |
Sehlopha sa EH32 |
≤0.18 |
≤0.50 |
0.9-1.6 |
≤0.035 |
≤0.035 |
≥0.015 |
Sehlopha sa FH32 |
≤0.18 |
≤0.50 |
0.9-1.6 |
≤0.035 |
≤0.035 |
≥0.015 |
Tshebetso bakeng sa Mephato e Fapaneng
Kereiti ya D, E (DH32, DH36, EH 32, EH 36)
Letoto la Grade D le E (inlcuding AH32/36, DH32, DH36, EH32, EH36) lipoleiti tsa tšepe tse hahang likepe li hloka boima bo botle ba mocheso o tlase le ts'ebetso e ntle ea welding. Sehlahisoa sa tšepe se entsoeng ka matla a phahameng a sekepe se hloka ho tloaeleha ka mokhoa oa ho roala le ho laoloa ho pholile kapa ho phekola mocheso ka lisebelisoa tse feletseng. Ka nako e ts'oanang, ho hloeka ha tšepe ka hare ho li-billet tse fanoeng ho hlokahala hore e be holimo, haholo-holo litaba tsa S, P, N, 0 le H ka tšepe li lokela ho laoloa ka thata.
Lintho tsa Alloy li Ekelitsoe ho Ntlafatsa Matla
E le ho netefatsa ts'ebetso ea lipoleiti tsa likepe tse matla haholo, theknoloji ea micro-alloying e amoheloa. Ka ho eketsa Nb, V, Ti le lisebelisoa tse ling tsa alloying ho tšepe, ho kopantsoe le mokhoa o laoloang oa ho roala, lijo-thollo li hloekisoa 'me ho tiea ho ntlafala.
Tataiso ea Nts'etsopele ea Letlapa la Kaho ea Likepe
Matla a phahameng, litlhaloso tse phahameng, ka boholo le polokeho ea sekepe, le liphetoho tsa litlhaloso tsa ho roala, tlhokahalo ea liphanele tse tloaelehileng tsa A-class e fokotseha butle-butle, 'me tlhokahalo ea liphanele tse matla haholo e ntse e eketseha, e tsepamisitsoeng likepeng tse kholo. bophara ba 5m. Plate, botenya ba 200-300mm boto e khethehileng ea sekepe.
Thepa ea Mechini
Kereiti ea tšepe |
Ntlha ea lihlahisoa/MPa |
Tensile point/MPa |
Ho lelefatsa/% |
Mocheso/° C |
Tlhahlobo ea phello ea mofuta oa V |
Akv/J |
≤50MM |
50-70MM |
70-100MM |
Sehlopha sa AH32 |
≥315 |
440-570 |
≥22 |
0 |
31/22 |
38/26 |
46/31 |
Sehlopha sa DH32 |
≥315 |
440-570 |
≥22 |
-20 |
31/22 |
38/26 |
46/31 |
Sehlopha sa EH32 |
≥315 |
440-570 |
≥22 |
-40 |
31/22 |
38/26 |
46/31 |
Sehlopha sa FH32 |
≥315 |
440-570 |
≥22 |
-60 |
31/22 |
38/26 |
46/31 |