Dab tsi yog cov khoom ntawm 55Q khoom?
55Qyog ib qho nruab nrab - carbon steel paub txog lub zog siab, hardness, thiab zoo heev hnav tsis kam, ua rau nws zoo tagnrho rau lub teeb railway lem hauv mines thiab factories, nrog lub zog tensile ib ncig ntawm 685 MPa, siab hardness (≥ 197 HBW), thiab cov ntsiab lus carbon ntawm 0.50- 0.60%, muab kev ua tau zoo dua thiab cov nqi zog qis dua li Q2-5 cov nqi zog dua.
Cov khoom tseem ceeb:
- High Strength & Hardness: Nws cov ntsiab lus carbon ntau dua muab cov khoom zoo tshaj -cov kabmob muaj peev xwm thiab hnav tsis kam rau qhov xav tau ib puag ncig.
- Kev Hnav Hnav Zoo: Zoo heev rau cov ntawv thov nrog kev sib txhuam tsis tu ncua, xws li cov mining lem.
- Machinability: Thaum muaj zog, nws tseem machinable siv cov txheej txheem txheem.
- Daim ntaub ntawv: Feem ntau siv rau lub teeb railway lem nyob rau hauv mines, factories, thiab industrial chaw, muab kev ruaj ntseg zoo rau me me locomotives thiab tsheb.
| 55Q | Cov cuab yeej cuab tam | Tshuaj muaj pes tsawg leeg (%) | |||||||||
| Yield zog | Tensile zog | Elongation | Hardness | C | Si | Mn | S | P | |||
| MPa | kg/mm² | MPa | kg/mm² | min | HBW | ≤ | ≤ | ||||
| ≥ | ≥ | ≥ | ≥ | ≥ | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
Dab tsi ntawm cov ntsia hlau yog tsim los ntawm 55Q steel?
55Q steel feem ntau yog siv rau lub teeb steel rails (LSG), tshwj xeeb tshaj yog rau cov lem nyob rau hauv kev xav tau ib puag ncig xws li underground mines, factories, thiab forestry operations, as well as for some low-speed urban light rail and tram systems, offer superior hardness and wear resistance piv rau Q235 steel rau me locomotive thiab tsheb siv. Qhov ntau thiab tsawg muaj xws li GB12KG, GB15KG, GB22KG, thiab GB30KG, feem ntau siv rau P12, P15, P22, P30 tus qauv, thiab tuaj yeem pom hauv qee cov qauv ASCE (xws li ASCE30, ASCE50) rau kev tsuas.
Cov ntawv thov tseem ceeb & hom:
- Mining Railways: Nws lub zog siab thiab kev puas tsuaj ua rau nws zoo tagnrho rau hnyav -cov dej num siv hauv qhov av thiab qhib qhov.
- Industrial Tracks: Siv nyob rau hauv factories thiab hav zoov rau thauj khoom.
- Lub Teeb Rail & Nroog Transit: Tsim nyog rau lub teeb tsheb ciav hlau, tsheb ciav hlau, thiab subways qhov twg yuav tsum muaj kev tiv thaiv me me.
- Suav GB Cov Qauv: Feem ntau hauv GB11264-89 tus qauv rau qhov hnyav li 12kg / m, 15kg / m,22kg / m, thiab 30kg / m.
| 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 | |
| 22 KG / M | 93.66 | 50.8 | 93.66 | 10.72 | 22.3 | |
| 24 KG / M | 107 | 51 | 90 | 10.9 | 24.46 | |
| 30 KG / M | 107.95 | 60.33 | 107.95 | 12.3 | 30.1 | |
- American ASCE Standards: Siv rau qhov ntau thiab tsawg xws li ASCE30, ASCE40, thiab ASCE50, tshwj xeeb tshaj yog nyob rau hauv mining.
| yog Rail | Dimensions mm | Qib Steel | Qhov hnyav | |||
| Rail qhov siab / A | Hauv qab dav / F | Lub taub hau dav / C | Web Thickness/t | kg/m | ||
| UAS 25 | 69.85 | 69.85 | 38.1 | 7.54 | 55Q | 12.2 |
| UAS 30 | 79.37 | 79.37 | 42.86 | 8.33 | 55Q | 15.2 |
| UAS 40 | 88.9 | 88.9 | 47.6 | 9.9 | 55Q | 19.84 |
| UAS 50 | 98.43 | 98.43 | 54 | 11.11 | 55Q | 24.855 |
| UAS 60 | 107.95 | 107.95 | 60.33 | 12.3 | 55Q | 30.1 |
| TIAB SA 70 | 117.48 | 117.48 | 61.91 | 13.1 | 55Q | 34.5 |
| TIAB SA 80 | 127 | 127 | 63.5 | 13.89 | ua 71mn | 39.82 |
| TIAB SA 85 | 131.76 | 131.76 | 65.09 | 14.29 | ua 71mn | 42.3 |
Txij xyoo 2008,GNEE RAILtau muab steel rails ntawm ntau qib sib txawv rau ntau tshaj 18 xyoo, steel rails los ntawm GNEE yog heev recommened nyob rau hauv Tuam Tshoj thiab txawv teb chaws.Wtih txiav ntug cov cuab yeej, GNEE ua tau zoo steel rails raws li cov kev cai ntawm feem 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.