Thaum xaiv Q355GNH Corten Steel rau sab nraum zoov lossis cov txheej txheem, kev nkag siab nws cov khoom tseem ceeb yog qhov tseem ceeb kom ntseeg tau tias nws haum rau koj cov kev xav tau- ntau tus neeg yuav khoom tsis meej pem nrog lwm qib Corten, ua rau tsis sib haum xeeb lossis tsis tsim nyog cov nqi. Tsis zoo li huab cua zoo tib yam-cov hlau tsis muaj zog, Q355GNH sib npaug tiv thaiv corrosion, lub zog, thiab kev ua haujlwm rau hnyav lossis qis- qhov kub thiab txias. Yog li, dab tsi yog cov khoom tseem ceeb uas txhais Q355GNH thiab ua kom nws sawv? Raws li GB / T 4171 tus qauv thiab kev ua lag luam, cov lus teb tseem ceeb yog qhov tseeb:Q355GNH Corten Steel cov khoom tseem ceeb suav nrog kev txhim kho qis- qhov kub thiab txias, zoo heev corrosion kuj, nruab nrab- siab zog, thiab zoo weldability- haum rau hnyav sab nraum zoov thiab qis-kub tej yaam num. Hauv qab no yog cov lus qhia yooj yim, ua tau zoo.
1. Txhim kho qis-Tsub Toughness (Key Differentiator)
Q355GNH qhov zoo tshaj plaws ntawm cov qib Corten txheem (piv txwv li, Q355NH) yog nws qhov qis dua- qhov kub thiab txias, qhov tseem ceeb rau cov dej txias- cov haujlwm hauv cheeb tsam:
Standard Requirement: Yam tsawg kawg nkaus Charpy V-notch cuam tshuam lub zog Ntau dua los yog sib npaug rau 34J ntawm -20℃(vs. 0℃rau Q355NH zoo tib yam), nrog rau cov qib xaiv tau nce siab dua lossis sib npaug rau 27J ntawm -40℃rau huab cua txias.
Tus nqi tsim nyog: tiv taus cov pob txha tawg hauv qhov chaw khov (xws li, sab qaum teb Europe, sab qaum teb North America), ua rau nws zoo tagnrho rau txias- thaj chaw sab nraum zoov.
Kev them nyiaj yug Alloy: Trace Ni thiab Mn cov ntsiab lus txhim kho ductility, ua kom muaj kev ruaj ntseg txawm tias nyob rau lub sijhawm ntev tsis kub.
2. Zoo heev Corrosion Resistance (Core Trait of Corten Steel)
Raws li qhov siab -kev ua tau zoo Corten Steel, Q355GNH muab lub sijhawm ntev - huab cua tiv thaiv tsis tu ncua tsis tu ncua:
Patina Tsim: Ua kom ntom ntom, tiv thaiv patina hauv 6-12 lub hlis thaum raug huab cua thiab noo noo, thaiv kev xeb ntxiv.
Corrosion Performance: Corrosion rate Tsawg dua lossis sib npaug li 0.025mm / xyoo (zoo dua Q355NH), 4-6 npaug ntau dua li cov pa roj carbon zoo tib yam.
Ib puag ncig tsim nyog: Zoo nyob rau hauv ntug hiav txwv dej, siab - av noo, thiab me me kev lag luam zones - tawm tsam ntsev tsuag thiab lub teeb tshuaj fumes.
3. Nruab nrab -High Strength (Mechanical Core)
Q355GNH lub zog sib npaug load-cov kabmob muaj peev xwm thiab kev ua haujlwm, haum rau feem ntau cov kev xav tau:
Cov Metric tseem ceeb (GB/T 4171): Yam tsawg kawg nkaus lub zog ntau dua los yog sib npaug rau 355MPa, tensile zog 490-630MPa ("355" yog hais txog yield zog).
Daim Ntawv Thov: Tsim nyog rau nruab nrab - thauj khoom cov khoom siv (txoj kev txhawb nqa, warehouse thav duab, ntug hiav txwv guardrails) thiab hnyav - lub luag haujlwm kho kom zoo nkauj.
Thickness Adaptability: Ua kom muaj zog txawm tias cov phaj tuab (txog 100mm), nrog rau kev hloov pauv me ntsis rau lub zog ultra- tuab.
4. Zoo Weldability & Formability (Yooj yim rau Fabricate)
Txawm hais tias nws qhov kev ua tau zoo, Q355GNH tseem ua tau yooj yim, txo cov nqi tsim khoom:
Weldability: Compatible with common welding processes (SMAW, GMAW, TIG); only thick plates (>16mm) xav tau me me preheating (80-120 degree) kom tsis txhob tawg.
Formability: Zoo ductility tso cai rau khoov, dov, thiab laser txiav - pom zoo khoov vojvoog Ntau dua los yog sib npaug rau 3 × phaj thickness rau qhov zoo tshaj plaws.
Ncej -Kev Ua Haujlwm: Tsis muaj kev kho cua sov tshwj xeeb uas xav tau tom qab tsim khoom, tshwj tsis yog rau cov tuab tuab - cov haujlwm sib koom ua ke.
Cov ntsiab lus ceev rau kev xaiv tswv yim
Q355GNH cov khoom tseem ceeb ua rau nws zoo tagnrho rau: Tsawg-kub sab nraum zoov cov haujlwm, cov qauv hauv ntug hiav txwv, nruab nrab-load bearings, thiab hnyav- daim ntawv thov ib puag ncig uas tus qauv Corten Steel (Q355NH) tsis txaus. Nws qhov sib npaug ntawm toughness, corrosion resistance, thiab processability ua kom lub neej ntev kev pab cuam thaum tswj cov nqi.
Hauv luv luv, Q355GNH Corten Steel qhov kev txhim kho qis- qhov kub thiab txias, zoo corrosion kuj, txhim khu kev qha lub zog, thiab kev ua haujlwm zoo ua rau nws muaj ntau yam, siab -kev xaiv tus nqi rau hnyav sab nraum zoov thiab cov qauv tsim- nkag siab txog cov khoom no pab koj xaiv cov khoom tsim nyog rau koj cov kev xav tau.
