Xav paub seb SPA-H thiab SPA-C Corten Steel (ob leeg JIS G 3125 tus qauv) txawv li cas thaum xaiv cov khoom siv rau koj qhov project txawv teb chaws? Lawv qhov tsis sib xws hauv cov tshuaj muaj pes tsawg leeg ncaj qha ua rau huab cua tsis kam tiv thaiv thiab daim ntawv thov dav - tseem ceeb rau kev zam kev xaiv tsis sib xws thiab qhov kev pheej hmoo ntawm txoj haujlwm. Hauv qab no yog cov ntsiab lus sib piv, sib piv-cov lus qhia tsom kom paub meej cov ntsiab lus sib txawv no thiab pab koj txiav txim siab xaiv.
1. Core Gap: Chemical Composition
Raws li cov viv ncaus qib nyob rau hauv JIS G 3125, SPA-H thiab SPA-C qhia ib qho yooj yim Cu-Cr-P alloy system tab sis txawv qhov sib txawv ntawm cov ntsiab lus alloy thiab sib ntxiv, tshwj xeeb tshaj yog rau cov khoom txhawb nqa hnyav-ib puag ncig:
SPA-C: Cu (0.05-0.30%), Cr (0.30-1.25%), P (0.07-0.15%). Tsis tas yuav tsum tau ntxiv ntawm Ni, Nb, lossis V. Cov alloy ntau yam yog qhov hloov tau yooj yim, tsom mus rau cov txiaj ntsig zoo rau cov xwm txheej huab cua-resistant.
SPA-HCov ntsiab lus ntau dua thiab nruj dua tswj cov alloy: Cu (0.20-0.50%), Cr (0.30-1.25%), P (0.07-0.15%), thiabyuav tsum Ni (0.60-1.00%). Ni yog tus tseem ceeb sib txawv-nws ua kom muaj kev ruaj ntseg ntawm tus kheej - tiv thaiv xeb txheej nyob rau hauv ib puag ncig corrosive.
2. Derived Difference: Huab cua Resistance Performance
Qhov sib txawv ntawm cov alloy muaj pes tsawg leeg ua rau cov huab cua tsis sib xws, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav heev hauv cov haujlwm txawv teb chaws:
Ib puag ncig me me (Inland Rural/Purban Areas): Qhov txawv me ntsis. Ob daim ntawv tuab -FeOOH xeb txheej nrog txhua xyoo corrosion tus nqi ntawm 0.01-0.02mm / xyoo, haum rau dav architectural los yog tsis- load-bearing qauv.
Ib puag ncig hnyav (Nqaij ntug dej hiav txwv, High-SO₂ Industrial Areas): SPA-H ua tau zoo heev. Ni hauv SPA-H txhawb kev tsim cov txheej txheej xeb ruaj khov uas tiv taus Cl⁻ ( ntsev tsuag) thiab SO₂ yaig. Nws tus nqi corrosion txhua xyoo nyob rau hauv cov ntug dej hiav txwv yog tsawg dua los yog sib npaug li 0.03mm / xyoo, thaum SPA -C mus txog 0.04-0.06mm / xyoo. SPA-H's xeb txheej tsis tshua muaj tev, ua kom muaj kev tiv thaiv ntev dua.
Tsawg- Ib puag ncig kub: SPA-H muaj qhov zoo dua qis- qhov kub thiab txias (lub zog cuam tshuam Ntau dua lossis sib npaug ntawm 27J ntawm -20 degree) vim Ni ntxiv, ua rau nws haum rau thaj chaw txias. SPA-C qhov qis- qhov kub thiab txias kev ua haujlwm yog qhov tsis muaj zog, tsis pom zoo rau kev siv mus ntev hauv qab -20℃.
3. Scenario-Txoj Kev Xaiv Qhia Txog Kev Ua Haujlwm txawv teb chaws
Xaiv cov qib raws li koj qhov project ib puag ncig thiab nyiaj txiag kom sib npaug ntawm kev ua tau zoo thiab tus nqi:
Xaiv SPA-H yog: Koj qhov project yog nyob rau hauv ntug dej hiav txwv / siab- ntsev- thaj chaw tshuaj tsuag, thaj chaw muaj kev lag luam uas muaj SO₂ siab, lossis thaj chaw txias (-20℃txog -30℃); los yog yog hais tias nws muaj xws li load-bearing qauv uas yuav tsum tau lub sij hawm ntev durability (xws li, ntug hiav txwv dej choj, offshore platform Cheebtsam).
Xaiv SPA-C yog: Koj qhov project yog nyob rau hauv ib puag ncig me me; lossis yog tias nws tsis yog -load- cov kabmob (piv txwv li, cov phab ntsa toj roob hauv pes, cov khoom siv kho kom zoo nkauj) nrog cov kev txwv nruj. Nws yog tus nqi -kev xaiv zoo rau huab cua dav dav- tiv taus kev xav tau.
Hauv luv luv, qhov sib txawv tseem ceeb ntawm SPA-H thiab SPA-C nyob hauv Ni cov ntsiab lus thiab tom qab hnyav- ib puag ncig tiv thaiv. SPA-H yog qhov kev xaiv zoo tshaj rau cov xwm txheej txawv teb chaws nyuaj, thaum SPA-C txaus rau qhov xwm txheej me me. Kev sib piv cov qib nrog koj qhov project qhov chaw ib puag ncig ua kom muaj kev ua tau zoo thiab tus nqi- ua haujlwm tau zoo.
