1. Cov xwm txheej tseem ceeb uas yuav tsum muaj tsawg-Kev ntsuas qhov kub thiab txias
Cov yam ntxwv ntawm cov khoom siv dynamic loads: Xws li choj guardrails, railway wagon thav duab, chaw nres nkoj machinery qhov chaw, thiab sab nraum zoov load- bearing txhawb nyob rau hauv cov cheeb tsam txias (xws li, sab qaum teb Tuam Tshoj, Russia, Canada). Ntawm qhov kub thiab txias, hlau yog qhov ua rau tawg tawg; qhov kev ntsuam xyuas cuam tshuam xyuas seb cov hlau puas muaj toughness txaus los tiv thaiv tam sim ntawd loads.
Weathering steel qib rau qis-kev pabcuam kub: Customized qib zoo liQ420NH (-40℃txhim kho hom)los yogSPA-H qis- kub hloov pauvyuav tsum xeem dhau qhov kev ntsuam xyuas ntawm qhov ntsuas kub tsawg (piv txwv li, -20 degree, -40 degree) kom paub meej tias ua raws li kev tsim qauv.
Tej yaam num nrog cov qauv kev lag luam nruj: Piv txwv li, kev tsim kho hauv cheeb tsam alpine yuav tsum tau ua raws li cov cai hauv zos, uas feem ntau qhia meej tias yuav tsum muaj tsawg - qhov ntsuas kub ntawm qhov toughness ntawv pov thawj rau cov qauv hlau.
2. Cov xwm txheej uas qis -Qhov ntsuas kub tsis tas yuav tsum muaj
Kho kom zoo nkauj daim ntaub ntawv: Scenic qhia cov paib, paj txaj, lub tsev facades, thiab pej xeem kos duab installation nyob rau hauv temperate regions. Cov khoom no dais me ntsis kom tsis muaj qhov hnyav, thiab qis -kub brittleness tsis muaj kev pheej hmoo.
Tsis yog-load- cov kabmob qhov chaw: Sab hauv phab ntsa muab faib, lub teeb yuag zoo nkauj vaj huam sib luag, thiab me me laser- txiav cov khoom.
3. Cov Lus Qhia Tseem Ceeb rau Tsawg -Tsuas Ntsuas Qhov Ntsuas ntawm Huab Cua Hlau
Cov qauv ntsuas kub: Feem ntau teev qhov kub thiab txias yog-20 degreethiab-40 degree, nyob ntawm daim ntawv thov cheeb tsam kev nyab xeeb. Piv txwv li, steel siv nyob rau hauv cov cheeb tsam uas muaj qhov tsawg kawg nkaus kub ntawm -30℃feem ntau yuav tsum tau ib tug -40℃tej yam kev kuaj (nrog rau ib tug kev nyab xeeb margin).
Dhau cov txheej txheem: Lub zog nqus ntawm Charpy V-qhov ntsuas qhov cuam tshuam yuav tsum yogNtau dua lossis sib npaug li 27 J(ib qho kev lag luam kev lag luam). Qhov no ua kom cov hlau tsis muaj kev puas tsuaj rau hauv kev cuam tshuam ntawm qhov kub thiab txias.
Qib- cov kev txwv tshwj xeeb: Standard weathering steel qib (piv txwv li, Q355NH, SPA-H) feem ntau muaj qhov ntsuas kub tsawg kawg nkaus ntawm -20℃los ntawm lub neej ntawd. Rau ultra-qis- daim ntawv thov kub, mills tuaj yeem tsim cov qib customized nrog cov nplej ua kom zoo (ntxiv Nb/V/Ti) los txhim kho qhov kub thiab txias.
