Txiav txim siab ua tiav
Xaiv cov khoom txias uas haum rau ...}}} rolled steel qib rau ib qho kev thov tseem ceeb yuav tsum muaj cov xwm txheej, ua lag luam, thiab kev xav tau). Kev tshuaj xyuas cov txheej txheem ntawm cov ntsiab lus ntawm cov ntsiab lus tseem ceeb tau ua kom phim cov qib tsim nyog. Cov hauv qab no yog cov tswv yim xaiv thiab cov kauj ruam:
1. Txheeb xyuas cov ntsiab lus ntawm daim ntawv thov cov xwm txheej.
Cov ntawv thov sib txawv tau muaj qhov sib txawv sib txawv yuav tsum muaj rau cov ntawv hlau, yog li nws yog ib qho tseem ceeb kom ua kom pom tseeb ntawm cov tseem ceeb ua ntej:
Ib puag ncig cov ntsiab lus: Yuav muab daim ntawv thov ib puag ncig, acid thiab alkali, siab kub, lossis ntsev ntau ntawm ib cheeb tsam? (Qhov no txiav txim siab corrosion tiv thaiv.)
Kev Siv Tshuab: Nws yuav tsum tau ua shearing, khoov, nqus daim duab sib sib sib nqus, vuam, lossis xim pleev xim? (Qhov no txiav txim siab formability thiab weldability.)
Cov kev yuav tsum tau: Puas yuav tsum tau ntim cov ntaub ntawv: puas yuav tsum muaj cov khoom lag luam - cov kabmob, lossis cov tsos mob (xws li spangle- pa dawb thiab smoothness)? (Qhov no txiav txim lub zog thiab cov khoom zoo.)
2. Cov ntsiab lus tseem ceeb txuam nrog kev sib tw
1. Xaiv los ntawm "Corrosion Kuj": Ua Ntej Zinc Txheej Thickness thiab txheej hom.
Qhov hnyav dua rau corrosion ib puag ncig, cov tuab tuab cov txheej zinc yuav tsum tau; Cov ntawv teev cov ntawv tshwj xeeb xav tau cov txheej txheem tshwj xeeb.
Cov ntoo kom huv (piv txwv li cov khoom siv rov qab, cov khoom ntim zinc muaj txaus, xws li Z80 (80- ob sab). Cov qhab nia sib raug nrog DC 01+ Z80 thiab DX51D + Z80.
Ntub dej / xws li cov khoom siv hauv chav ua noj, cua ua pa roj): nruab nrab Cov qhab nia sib raug zoo suav nrog DC {{4 4}} Z120 thiab SGCC-Z60 (600g / m² ntawm ob sab).
Cov tshuaj tsuag ntsev / dej hiav txwv ntau (piv txwv li Cov qhab nia sib raug nrog DC 01+ Z275.
Rau vuam / pleev xim cov ntawv thov: zinc -} Iron coating (ZF), xws li DC01+ Zf, yog nyiam. Nws muaj cov txheej txheej sib xyaw, tsawg kawg weld ci, thiab txhim kho cov xim pleev xim.
2. Xaiv los ntawm "txoj kev tsim qauv": ua ntej ductility (elongation) thiab lub zog.
Cov txheej txheem ntau ntxiv, qhov siab dua lub siab (elongation)
Rau kev ua tiav yooj yim (shearing, ncaj muag, kos duab qis dua, xws li ENTD Cov Lus Qhia B. Cov qib no muaj 28%, kev xav tau yooj yim rau 28%, kev sib tham cov kev cai.
Rau qhov nruab nrab tsim (nkhaus dabtsi yog khoov, nruab nrab {{}}}}} kev siv tshuab ntxhua khaub ncaws):, GB DX52D, thiab JIS SGCD1. Cov kab lus no muaj elongation ntau dua lossis sib npaug ntawm 34% thiab muab txhim kho wrinkle tsis kam.
Txoj kev sib xyaw ua ke (kev sib sib zog nqus duab, ntau {} {{{{1}, thiab muaj kev sib npaug ntawm 38%, tuaj yeem tiv thaiv kev tsis zoo ib yam tsis muaj kev tawg.
3. Xaiv los ntawm "Cov Khoom Siv Neeg Kho Tshuab": Sib npaug lub zog thiab ductility
Rau lub zog -}} {- Lub zog qis), nrog rau cov txiaj ntsig zoo ntawm 300-500 mpa.
Rau ductility -}}} Cov khoom seem):}}}} elongation sib sib zog nqus cov qib (xws li DC03 thiab DX52D).
Rau qhov sib npaug ntawm lub zog thiab formability (xws li siv lub zog hluav taws xob):} mpa) thiab elongation ntau dua lossis sib npaug li 36%.
4. Xaiv los ntawm "Cov qauv sib raug zoo": phim tus qauv uas yuav tsum tau ua ntawm txoj haujlwm lossis thaj chaw.
Cov phiaj xwm nyob rau txawv teb chaws / thaj chaw tuaj yeem muab cov qauv tshwj xeeb, yog li xaiv raws li:
Cov haujlwm hauv European: Ua Ntej Tus Qauv (piv txwv li, DC01, DC03).
Cov haujlwm hauv tsev: Ua ntej GB cov qauv (piv txwv li, DX51D, DX52D).
North American project: Ua ntej Astm Cov Qauv (piv txwv, CS hom B, DS).
Japanese thiab Kauslim Muab cov saw hlau: Ua ntej JIS cov qauv (piv txwv li, SGCC, SGCD1).
5. Xaiv los ntawm "tus nqi thiab kev ua tau zoo": zam dhau -} qhov tshwj xeeb.
Siab - Kev Ua Haujlwm Qib (piv txwv li, ultra- Cov duab pleev xim tuab yog kim dua thaum koj xav tau.
Cov Kev Siv Cov Ntawv Siv Cov Khoom Siv (piv txwv, cua tso pa tawm): Xaiv DC01+ Z80 (tsis yog DC03+ Z120).
Tsawg - corrosion ib puag ncig (piv txwv, xaiv cov xim ntshiab zinc
3. Kev xaiv xaiv rau cov ntawv thov tshwj xeeb
Rau cov ntawv thov nrog cov kev xav tau ntawm cov khoom siv hluav taws xob): Xaiv cov khoom siv khoom siv): Kev kho mob (xws li DC {1} {{2} free {2} Qhov no muab cov smoother saum npoo thiab qhov zoo dua tom qab pleev xim.
Txog kev siv rau hauv kev sib chwv hauv tub yees (xws li cov txheej txheem tub yees): Xaiv cov zaub mov {}} Cov ntawv pov thawj qib qis, zam cov kev phom sij xws li txhuas).
Rau cov ntawv thov nyob rau hauv high - {{{} {}} dinc aloy txheej, uas tuaj yeem tiv taus kub tshaj 300 degree).
4. Ntsiab Lus: Txheej Txheem Xaiv
Qhia kom meej rau daim ntawv thov ib puag ncig (corrosion, kub) thiab ua tshuab (moulding nyuaj);
Raws li cov xwm txheej no, txiav txim siab qhov yuav tsum zinc txheej tuab, txheej, thiab qib tsev;
Phim qib mus rau cov qauv hauv cheeb tsam (xws li En, GB, ASTM, thiab lwm yam);
Thaum kawg, txiav txim siab tus nqi thiab cov kev xav tau tshwj xeeb (xws li cov tsos mob thiab cov ntawv pov thawj).
Los ntawm cov kauj ruam no, koj tuaj yeem xaiv qhov txias - Rolled Steel qib uas tau raws li kev ua tau zoo thaum muab tus nqi ua haujlwm thaum muab tus nqi siv txiaj ntsig zoo.
Kuaj ntawv
Kev faib
Cov xwm txheej dab tsi yuav tsum tau txiav txim siab thaum xaiv cov tuab ntawm txias - rolled galvanized steel ntawv rau cov ntawv thov sib txawv?
Muab cov lus qhia ntxaws ntxaws los xaiv khaub thuas - rolled galvanized steel ntawv qib
Cov lus pom zoo rau qee qhov zoo -} paub hom txias-} rolled steel ntawv