Dab tsi yog cov khoom ntawm 55Q khoom?
55Q yog ib qho nruab nrab - carbon steel paub txog nws lub zog siab, hardness, thiab zoo heev hnav tsis kam, ua rau nws zoo tagnrho rau lub teeb railway lem nyob rau hauv mines, factories, thiab low- thauj hauv nroog ceev, tshaj qhov ua tau zoo ntawm qis dua -carbon Q235 steel tab sis ntawm tus nqi siab dua. Cov khoom tseem ceeb suav nrog lub zog tensile siab (nyob ib puag ncig 685 MPa), zoo hardness (Ntau dua lossis sib npaug ntawm 197 HBW), thiab cov ntsiab lus tshwj xeeb carbon (0.50-0.60%), ntsuas qhov muaj zog nrog kev ua haujlwm rau kev thov kev taug qab.
| 55Q | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Lub zog tensile | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HBW | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | ||||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
| Q235B | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Lub zog tensile | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/m² | MPa | kg/m² | min | HB | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | Tsawg dua los yog sib npaug | |||
| Ntau dua lossis sib npaug | Ntau dua lossis sib npaug | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
Cov yam ntxwv ua haujlwm:
- Siab zog & Hardness: Cov ntsiab lus ntawm cov pa roj carbon ntau dua muab cov hardness zoo dua thiab thauj khoom -cov kabmob muaj peev xwm tshaj li Q235 steel.
- Kev hnav zoo heev: Zoo tagnrho rau ib puag ncig nrog kev sib txhuam siab, zoo li kuv txoj kev tsheb ciav hlau.
- Zoo Machinability: tuaj yeem ua tiav thiab welded siv cov txheej txheem, txawm hais tias nws yog qib siab dua - qib steel.
Daim ntawv thov:
Feem ntau siv rau lub teeb steel rails (8kg, 15kg, 24kg, thiab lwm yam) nyob rau hauv industrial chaw (mines, factories) thiab ib co lub teeb rail transit systems uas durability yog tseem ceeb heev.
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Lub Teeb Rail | 8 KG / M | 65 | 25 | 54 | 7 | 8.42 |
| 9 KG / M | 63.5 | 32.1 | 63.5 | 5.9 | 8.94 | |
| 12 KG / M | 69.85 | 38.1 | 69.85 | 7.54 | 12.2 | |
| 15 KG / M | 79.37 | 42.86 | 79.37 | 8.33 | 15.2 | |
| 18 KG / M | 80 | 40 | 80 | 10 | 18.06 | |
Txij li thaum xyoo 2008, GNEE RAIL tau muab cov hlua hlau sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE tau pom zoo nyob hauv Suav teb thiab txawv teb chaws.Wtih cov cuab yeej txiav ntug, GNEE tsim cov khoom zoo steel hlau uas ua tau raws li cov kev cai ntawm ntau lub teb chaws. Standard rail, lub taub hau hardened rail, hnyav rail, lub teeb rail, crane rail thiab lwm yam yog tag nrho cov muaj nyob ntawm no, raws li ib tug ntawm cov Tuam Tshoj lub ntsiab rail tsum, GNEE RAIL tau ua hauj lwm rau muab kev lag luam ntsuab railway khoom thoob plaws lub ntiaj teb no.
| Kev faib tawm | Qhov siab (mm) | Lub taub hau (mm) | Hauv qab (mm) | Thickness (mm) | Qhov hnyav (kg / m) | |
| Heavy Rail | 38 KG / M | 134 | 68 | 114 | 13 | 38.733 |
| 43 KG / M | 140 | 70 | 114 | 14.5 | 44.653 | |
| 45 KG / M | 145 | 67 | 126 | 14.5 | 45.546 | |
| 50 KG / M | 152 | 70 | 132 | 15.5 | 51.514 | |
| 60 KG / M | 176 | 73 | 150 | 16.5 | 60.64 | |
| Kev faib tawm | SIZE (mm) | theoretical luj | |||||||||
| qhov siab | hauv qab dav | taub hau dav | lub duav tob | ||||||||
| Crane rail | qw 70 | 120 | 120 | 70 | 28 | 52.8 | |||||
| qw 80 | 130 | 130 | 80 | 32 | 63.69 | ||||||
| QU 100 | 150 | 150 | 100 | 38 | 88.96 | ||||||
| qw 120 | 170 | 170 | 120 | 44 | 118.1 | ||||||