Waa maxay Saxanka Birta ee Dhismaha Maraakiibta
Saxanka birta ah ee dhismaha maraakiibta waxaa loola jeedaa birta kulul ee loo yaqaan "hot-rolled steel" ee loogu talagalay soo saarista qaab-dhismeedka maraakiibta ee loo soo saaro si waafaqsan shuruudaha bulshada dhismaha. Badanaa waxaa loo isticmaalaa sida biraha gaarka ah ee loo dalbado, jadwalka, iibinta, markab oo ay ku jiraan biraha maraakiibta, birta iwm.
Kala-soocidda Birta Dhismaha Maraakiibta
Taarikada birta ah ee Dhismaha Maraakiibta waxaa loo qaybin karaa bir qaab-dhismeed oo xoog leh iyo bir qaab-dhismeed oo xoog leh iyadoo loo eegayo heerka ugu yar ee xoogga wax-soo-saarka.
JINDALAI waxay soo saartaa oo dhoofisaa 2 nooc oo bir ah oo maraakiibta ah, saxanka dhismaha maraakiibta oo xoog dhexdhexaad ah iyo saxanka dhismaha maraakiibta oo xoog badan. Dhammaan badeecadaha saxanka birta ah waxaa lagu soo saari karaa iyadoo loo eegayo Society LR, ABS, NK, GL, DNV, BV, KR, RINA, CCS, iwm.
Codsiga Birta Dhismaha Maraakiibta
Dhismaha maraakiibta ayaa dhaqan ahaan u adeegsada saxan bir ah oo qaab dhismeed ah si loo sameeyo qolofka maraakiibta. Taarikada birta casriga ah waxay leeyihiin awood jiidis oo aad uga sarreysa kuwii ka horreeyay, taasoo ka dhigaysa kuwo aad ugu habboon dhismaha hufan ee maraakiibta weelasha waaweyn. Waa kuwan Faa'iidooyinka Taarikada Dhismaha Maraakiibta Taarikada birta ah ee u adkaysata daxalka sare waa nooc bir ah oo ku habboon haamaha saliidda, marka loo isticmaalo dhismaha maraakiibta, miisaanka maraakiibtu wuu ka yar yahay isla awoodda maraakiibta, kharashka shidaalka iyo CO2.2qiiqa waa la dhimi karaa.
Heerka iyo Halabuurka Kiimikada (%)
| Fasal | C%≤ | Mn % | Si % | p % ≤ | S% ≤ | Al % | Nb% | V% |
| A | 0.22 | ≥ 2.5C | 0.10~0.35 | 0.04 | 0.40 | — | — | — |
| B | 0.21 | 0.60~1.00 | 0.10~0.35 | 0.04 | 0.40 | — | — | — |
| D | 0.21 | 0.60~1.00 | 0.10~0.35 | 0.04 | 0.04 | ≥0.015 | — | — |
| E | 0.18 | 0.70~1.20 | 0.10~0.35 | 0.04 | 0.04 | ≥0.015 | — | |
| A32 D32 E32 | 0.18 | 0.70~1.60 0.90~1.60 0.90~1.60 | 0.10~0.50 | 0.04 | 0.04 | ≥0.015 | — | — |
| A36 D36 E36 | 0.18 | 0.70~1.60 0.90~1.60 0.90~1.60 | 0.10~0.50 | 0.04 | 0.04 | ≥0.015 | 0.015~0.050 | 0.030~0.10 |
Guryaha Farsamada ee Saxanka Birta ee Dhismaha Maraakiibta
| Fasal | Dhumucda(mm) | Wax soo saardhibic (Mpa) ≥ | Xoogga Tijaabada(Mpa) | Kordhinta (%)≥ | Tijaabada V-saamaynta | tijaabada qallooca qabow | |||
| Heerkulka (℃) | Celceliska AKVKV/J A | b=2a 180° | b=5a 120° | ||||||
| waddooyin dhaadheer | isgoyska | ||||||||
| ≥ | |||||||||
| A | ≤50 | 235 | 400~490 | 22 | — | — | — | d=2a | — |
| B | 0 | 27 | 20 | — | d=3a | ||||
| D | -10 | ||||||||
| E | -40 | ||||||||
| A32 | ≤50 | 315 | 440~590 | 22 | 0 | 31 | 22 | — | d=3a |
| D32 | -20 | ||||||||
| E32 | -40 | ||||||||
| A36 | ≤50 | 355 | 490~620 | 21 | 0 | 34 | 24 | — | d=3a |
| D36 | -20 | ||||||||
| E36 | -40 | ||||||||
Cabbirka La Heli Karo ee Taarikada Dhismaha Maraakiibta
| kala duwanaan | Dhumuc (mm) | Ballaca (mm) | Dhexroorka dheer/gudaha (mm) | |
| Saxanka dhismaha maraakiibta | geesaha jarista | 6-50 | 1500~3000 | 3000~15000 |
| geesaha aan jarin | 1300~3000 | |||
| gariiradda dhismaha maraakiibta | geesaha jarista | 6~20 | 1500~2000 | 760+20~760-70 |
| geesaha aan jarin | 1510-2010 | |||
Miisaanka Aragtida ee Birta Dhismaha Maraakiibta
| Dhumuc (mm) | miisaanka aragtiyeed | Dhumuc (mm) | miisaanka aragtiyeed | ||
| Kg/ft2 | Kg/m2 | Kg/ ft2 | Kg/m2 | ||
| 6 | 4.376 | 47.10 | 25 | 18.962 | 196.25 |
| 7 | 5.105 | 54.95 | 26 | 20.420 | 204.10 |
| 8 | 5.834 | 62.80 | 28 | 21.879 | 219.80 |
| 10 | 7.293 | 78.50 | 30 | 23.337 | 235.50 |
| 11 | 8.751 | 86.35 | 32 | 25.525 | 251.20 |
| 12 | 10.21 | 94.20 | 34 | 26.254 | 266.90 |
| 14 | 10.939 | 109.90 | 35 | 27.713 | 274.75 |
| 16 | 11.669 | 125.60 | 40 | 29.172 | 314.00 |
| 18 | 13.127 | 141.30 | 45 | 32.818 | 353.25 |
| 20 | 14.586 | 157.00 | 48 | 35.006 | 376.80 |
| 22 | 16.044 | 172.70 | 50 | 36.464 | 392.50 |
| 24 | 18.232 | 188.40 | |||
Birahan dhismaha maraakiibta waxaa sidoo kale loo isticmaali karaa dhismayaasha badda, haddii aad raadinayso saxan bir ah oo dhismaha maraakiibta lagu sameeyo ama saxan bir ah oo qaab dhismeedka badda lagu sameeyo, la xiriir JINDALAI hadda si aad u hesho qiimaha ugu dambeeya.
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