Demin iyo tempering, kaas oo ah habka daaweynta kulaylka oo caadi ahaan lagu sameeyo marxaladda ugu dambeysa ee dhammaystirka qaybaha, ayaa go'aamiya sifooyinka farsamada sare.
Sahayda JINDALAIBiraha Qabow ee la shiiday, kuwa kulul ee la shiiday iyo kuwa la been abuuray ee loogu talagalay daminta iyo hagaajinta iyadoo la adeegsanayo xalal sahay oo gaar ah oo ku salaysan qeexitaanno iyo shuruudo kale oo gaar ah si loo daboolo baahida macaamiil kasta marka loo eego darajooyinka iyo astaamaha. Shirkaddayada, oo leh 10laan-xafiisyadagudahaShiinahaiyo awood qaybinta sanadlaha ah oo gaareysa 200,000 Tons, waa lammaanaha ugu habboon ee ballaarin kara ganacsigaaga.
Waa maxay Birta la qaboojiyo iyo Birta la qaboojiyo?
Birta oo dhan waxay ka kooban tahay kaarboon, taasoo ka dhigaysa mid adag. Kaarboon aad u badan ayaa wiiqi karta sharafta birta. Hababka daminta iyo dab-demiska waxaa loo isticmaalaa in lagu kordhiyo sifooyinka farsamada ee birta kaarboon iyada oo aan lagu darin kaarboon badan.
Birta kaarboon-sare leh waxay leedahay saamiga kaarboonka ee u dhexeeya 0.60 ilaa 1.00% marka la barbar dhigo saamiga 0.05 ilaa 0.25% ee birta khafiifka ah. Marka birta kaarboon-sare leh ay marto habka daminta iyo heerkulka, sifooyinka farsamo ee ay leedahay ayaa ka dhigaya mid u adkaysta xirashada iyo waarta.
Habkani wuxuu sidoo kale u soo bandhigayaa birta qaboojin degdeg ah (demin) iyo dib u kululayn iyadoo la adeegsanayo hab qaboojin gaabis ah (dempering). Labada hab ee deminta iyo deminta labaduba waxay mas'uul ka yihiin kordhinta xoogga iyo adkeysiga birta.
Tallaabooyinka Hawsha For Qhorumarinta iyoTsoo baxaya
Si loo saameeyo adkaanta iyo xoogga birta, waxaa la sameeyay daaweyn kuleyl gaar ah, oo loo yaqaan quenching and tempering. Quensching iyo tempering waxaa loo qaybin karaa saddex tallaabo oo aasaasi ah:
Austenitizing → kululaynta ilaa ka sarraysa khadka GSK una gudubta gobolka Austenite
Quenching → qaboojin degdeg ah oo ka hooseeya γγ-αα-isbeddelka
Tdib u kululaynta → dib u kululaynta heerkul dhexdhexaad ah iyadoo si tartiib tartiib ah loo qaboojinayo
| Darajooyinka | Qalabka-Lambarka. | Dhibcaha wax soo saarka Rp0,2 (MPa) | Xoogga Laabista (MPA) | Kordhinta A (%) ugu yaraan. |
| 38Cr2 | 1.7003 | 550 | 800-950 | 14 |
| 46Cr2 | 1.7006 | 650 | 900-1000 | 12 |
| 34Cr4 | 1.7033 | 700 | 900-1100 | 12 |
| 34CrS4 | 1.7037 | 700 | 900-1100 | 12 |
| 37Cr4 | 1.7034 | 750 | 950-1150 | 11 |
| 37CrS4 | 1.7038 | 750 | 950-1150 | 11 |
| 41Cr4 | 1.7035 | 800 | 1100-1200 | 11 |
| 41CrS4 | 1.7039 | 800 | 1100-1200 | 11 |
| 25CrMo4 | 1.7218 | 700 | 900-1100 | 12 |
| 25CrMoS4 | 1.7213 | 700 | 900-1100 | 12 |
| 34CrMo4 | 1.7220 | 800 | 1000-1200 | 11 |
| 34CrMoS4 | 1.7226 | 800 | 1000-1200 | 11 |
| 42CrMo4 | 1.7225 | 900 | 1100-1300 | 10 |
| 42CrMoS4 | 1.7227 | 900 | 1100-1300 | 10 |
| 50CrMo4 | 1.7228 | 900 | 1100-1300 | 9 |
| 34CrNiMo6 | 1.6582 | 1000 | 1200-1400 | 9 |
| 30CrNiMo8 | 1.6580 | 1050 | 1250-1450 | 9 |
| 35NiCr6 | 1.5815 | 740 | 880-1080 | 12 |
| 36NiCrMo3 | 1.6773 | 1050 | 1250-1450 | 9 |
| 39NiCrMo3 | 1.6510 | 785 | 980-1180 | 11 |
| 30NiCrMo16-6 | 1.6747 | 880 | 1080-1230 | 10 |
| 51CrV4 | 1.8159 | 900 | 1100-1300 | 9 |
| 20MnB5 | 1.5530 | 700 | 900-1050 | 14 |
| 22MnB5 / MBW-W1500 (tilmaamaha) | 1.5528 | 1000 | 1500 | 5 |
| 30MnB5 | 1.5531 | 800 | 950-1150 | 13 |
| 38MnB5 | 1.5532 | 900 | 1050-1250 | 12 |
| 27MnCrB5-2 | 1.7182 | 800 | 1000-1250 | 14 |
| 33MnCrB5-2 | 1.7185 | 850 | 1050-1300 | 13 |
| 39MnCrB5-2 | 1.7189 | 900 | 1100-1350 | 12 |
Faa'iidooyinka Birta La Demiyey & La Qaboojiyay
Sida hore loo soo sheegay, waxaa jira faa'iidooyin badan oo laga helo birta la damiyay oo la hagaajiyay, oo ay ku jiraan:
Xoog Kordhay
Adkaanta oo kordhay
Khalkhalka yar
Sifooyinka Jireed ee La Saadaali Karo
Codsiyada Birta la damiyay iyo birta la hagaajiyay
Qalabka Mashiinka iyo Jarida
Dhismaha Buundada
Dhismayaasha Sare
Qalabka Dhismaha Culus
Haanta Kaydinta Kiimikada
Dahaarka Gawaarida Qashinka lagu shubo
Makiinadaha Warshadaha
Baabuurta Ka Xoog Badan & Kuwa Fudud
Qalabka Kaymaha
Astaamaha gaarka ah ee darajooyinkan waa qaab-dhismeedkooda xaalad kulul-rog ah iyo xooggooda sare ka dib daaweynta kulaylka. Astaamaha xoogga waxaa lagu gaaraa marka lagu daro kaarboonka iyo manganese gaar ahaan saamiga hooseeya ee boron.
Jindalaiwaxay ku siin kartaa darajooyinka birta ah ee lagu tilmaamay gariiradda, gariiradaha la jeexjeexay, go'yaasha iyo qaybaha la jaray. Haddii aad u baahan tahay macluumaad dheeraad ah oo ku saabsan darajooyinka, qiimaha iyo waqtiyada rasaasta, na weydii qiimeyn iyada oo aan wax waajib ah lahayn; waxaad heli doontaaxigasho. Nala soo xiriir hadda! Tel: +86 18864971774
WhatsApp-kahttps://wa.me/18864971774.Iimayl:jindalaisteel@gmail.comMareegta:www.jindalisteel.com
Waqtiga boostada: Juun-26-2023
