Thaum soj ntsuam cov kav hlau rau cov roj qis, cov dej xa tuaj, lossis cov dej tua hluav taws, covEN 10255Tus qauv yog ib qho piv txwv thoob ntiaj teb rau yuav luag txhua qhov kev nug txog kev siv tshuab. Rau cov kws tshaj lij kev yuav khoom, nws yog ib qho kev coj ua los sib piv cov lus hais raws li tus nqi ib-tuj. Txawm li cas los xij, hauv kev tsim kho thiab kev teeb tsa, tus nqi pib qis tsis tau xav txog tuaj yeem ua rau muaj cov nqi zais loj.
Yog tias cov kav dej xa mus rau qhov chaw ua haujlwm ua rau muaj teeb meem xws li cov cuab yeej hnav ua ntej lub sijhawm thaum lub sijhawm xov, qhov xau me me ntawm cov pob qij txha, lossis xeb thaum ntxov ntawm cov xov sib txuas, cov nyiaj txuag thawj zaug tau them sai sai los ntawm kev ncua sijhawm ua haujlwm thiab cov nuj nqis rov ua haujlwm. Ua ib pab pawg tsim khoom muaj kev paub dhau los uas tswj hwm tag nrho cov txheej txheem los ntawm kev ua cov hlau nyoos mus rau kev sim zaum kawg, peb ntseeg tias kev nkag siab ob peb yam tseem ceeb ntawm kev tsim khoom tuaj yeem pab ua kom koj qhov project nyob ruaj ntseg hauv cov peev nyiaj.
Vim li cas kev sib txuas du yuav tsum tau tswj cov pa roj carbon kom nruj
Lub npe raug cai ntawm EN 10255 specification qhia tias cov raj no yog tsim tshwj xeeb rau"Kev vuam thiab xov."Txawm hais tias qhov kev txhais meej no, ntau tus neeg yuav khoom tau tshaj tawm txog kev ntxhov siab thaum lub sijhawm teeb tsa qhov chaw, xws li kev co hnyav hauv cov tshuab xov tsis siv neeg, cov ntaub ntawv xov tsis zoo lossis tawg, thiab kev tawg ntawm cov tuag txiav kim heev.
Feem ntau qhov ua rau muaj qhov nyuaj ntawm cov khoom siv thiab cov tshuaj lom neeg tsis ruaj khov.
Yuav kom txo tau cov nqi tsim khoom, qee cov chaw tsim khoom yuav siv cov genericcov hlau kaujnrog cov khoom siv tshuaj lom neeg tsis sib xws heev. Rau qhov tseebS195T qib raj, cov tshuaj lom neeg sib xyaw yuav tsum tau tswj hwm kom nruj txij li thaumcov khoom siv rawtheem:
Cov pa roj carbon (C):Tswj hwm nruj me ntsis hauv qab no0.20%
Manganese (Mn):Tswj nyob rau hauv1.40%
Phosphorus (P) & Sulphur (S):Cov kev txwv siab tshaj plaws teem rau ntawm0.035% / 0.030%
Los ntawm kev khaws cov ntsiab lus carbon kom ruaj khovnyob rau hauv 0.20%Qhov pib, cov hlau tseem khaws nws cov ductility kom zoo. Thaum cov cuab yeej txiav ntawm qhov chaw koom nrog cov yeeb nkab, cov khoom siv tshuab du thiab sib npaug. Txoj hauv kev no tiv thaiv koj cov khoom siv xov los ntawm kev puas tsuaj ua ntej thiab ua kom cov xov huv, tob uas sib phim zoo nrog cov kev sib txuas txheem los tsim kom muaj kev sib koom ua ke txhim khu kev qha, tsis muaj qhov xau.
Lub Rooj Txwv Tsis Pub Dhau OD
Thaum nrhiav cov lus qhia tshwj xeeb EN 10255 hauv online, ntau cov ntsiab lus muaj qhia txog kev piav qhia yooj yim uas muaj ib qho nqi sab nraud - xws li 48.8 hli rau cov yeeb nkab DN40. Rau tus kws ua haujlwm lossis tus saib xyuas zoo, kev cia siab rau ib tus lej nominal xwb tsis txaus.
EN 10255 tsis ua haujlwm ntawm qhov kev kam rau siab raws li feem pua tsis meej xws li "±1%Vim tias cov raj no yuav tsum sib txuas lus zoo nrog cov khoom siv sib txuas lossis cov khoom siv sib txuas, tus qauv txhais tau tiasQhov siab tshaj plaws thiab qhov tsawg kawg nkaus ntawm millimeterrau txhua qhov loj me.
Yog tias txoj kab uas hla ntawm cov yeeb nkab tshaj qhov txwv sab saud txawm tias 0.1 hli, lub pwm xov yuav tsis koom nrog kom raug. Ntawm qhov tod tes, yog tias txoj kab uas hla nqaim dhau, qhov tob ntawm cov xov yuav tsis txaus, uas feem ntau ua rau muaj kev ua tsis tiav thaum lub sijhawm kuaj hydrostatic. Hauv qab no yog cov ciam teb tseeb uas tau khaws cia thaum lub sijhawm peb lub Hoobkas calibrations:
| Loj (DN) | Qhov Loj Xov (Nti) | Lub teeb OD ntau yam (hli) | Nruab Nrab/Hnyav OD Ntau (hli) | Phab ntsa teeb (hli) | Phab ntsa nruab nrab (hli) | Phab ntsa hnyav (hli) | Qhov Hnyav Nruab Nrab (kg/m2) |
| DN8 | 1/4″ | 13.2 – 13.6 | 13.2 – 13.9 | 1.8 | 2.3 | 2.9 | 0.641 |
| DN10 | 3/8″ | 16.7 – 17.1 | 16.7 – 17.4 | 1.8 | 2.3 | 2.9 | 0.839 |
| DN15 | 1/2″ | 21.0 – 21.4 | 21.0 – 21.7 | 2.0 | 2.6 | 3.2 | 1.210 |
| DN20 | 3/4″ | 26.4 – 26.9 | 26.4 – 27.2 | 2.3 | 2.6 | 3.2 | 1.560 |
| DN25 | 1″ | 33.2 – 33.8 | 33.2 – 34.2 | 2.6 | 3.2 | 4.0 | 2.410 |
| DN32 | 1-1/4″ | 41.9 – 42.5 | 41.9 – 42.9 | 2.6 | 3.2 | 4.0 | 3.100 |
| DN40 | 1-1/2″ | 47.8 – 48.4 | 47.9 – 48.8 | 2.9 | 3.2 | 4.0 | 3.570 |
| DN50 | 2″ | 59.6 – 60.2 | 59.7 – 60.8 | 2.9 | 3.6 | 4.5 | 5.030 |
| DN65 | 2-1/2″ | 75.2 – 76.0 | 75.3 – 76.6 | 3.2 | 3.6 | 4.5 | 6.430 |
| DN80 | 3″ | 87.9 – 88.7 | 88.0 – 89.5 | 3.2 | 4.0 | 5.0 | 8.370 |
| DN100 | 4″ | 113.0 – 113.9 | 113.1 – 114.9 | 3.6 | 4.5 | 5.4 | 12.200 |
| DN125 | 5″ | — | 138.5 – 140.6 | — | 5.0 | 5.4 | 16.600 |
| DN150 | 6″ | — | 163.9 – 165.1 | — | 5.0 | 5.4 | 19.700 |
(Ceeb Toom: Raws li cov lus qhia EN 10255, qhov loj dua xws li 5″ thiab 6″ tsis suav nrog kev xaiv Light series, uas sawv cev los ntawm "-" hauv daim ntawv qhia.)
Cov Txheej Txheem Zoo: Xyuas kom meej tias qhov tuab raug
Qee cov ntaub ntawv tshaj tawm qhia tias kev tshuaj xyuas qhov tuab ntawm phab ntsa feem ntau ua nyob rau hauv nruab nrab ntawm lub raj xa dej thaum lub sijhawm tsim khoom ceev ceev. Los ntawm qhov kev xyaum ua tau zoo, kev ua qhov kev kuaj xyuas micrometer nruab nrab ntawm txhua qhov kev tsim khoom ceev ceev yog qhov tsis ua tau zoo. Peb cov txheej txheem txheeb xyuas qhov zoo tsom mus rau txoj kev qhia meej, siv tau, thiab raug heev.
Thaum lub tshuab txiav hlau ya txiav cov yeeb nkab hlau uas txav mus los kom ntev, lub zog ntawm cov hniav yuav ua rau muaj cov kab me me thiab cov ntug ntawm qhov txiav tsis zoo. Kev muab lub micrometer txheem tso rau saum lub npoo sab nraud no tuaj yeem ua rau qhov kev ntsuas tsis zoo, qee zaum zais qhov profile phab ntsa uas tsis tuab los ntawm kev qhia qhov nyeem tsis tseeb thiab nthuav dav.
Yuav kom tiv thaiv tau qhov teeb meem no, peb pab neeg zoo tau kawm kom txav lub micrometer tawm ntawm ntug txiav kom hla dhau qhov chaw burrs thiab thaj chaw deformation. Qhov chaw tshwj xeeb no ua rau muaj kev nyeem ntawv raug heev kom ntseeg tau tias cov khoom siv ua raws li tus qauv tso cai -12.5% siab tshaj plaws ntawm phab ntsa. Ntxiv mus, rau txhua qhov kev txiav txim xov, peb xyuas kom meej tias cov yeeb nkab kawg tau khaws cia kom huv si thiab du kom txhawb kev tuav pov hwm zoo thiab kev ua haujlwm ntawm cov cuab yeej du.
Kev Sib Txuas Galvanizing: Tiv Thaiv Kev Sib Nraus Zinc Thaum Lub Sijhawm Xov
Hauv cov tes hauj lwm tiv thaiv dej thiab hluav taws, kev tiv thaiv kev xeb sab hauv thiab sab nraud yog qhov tseem ceeb heev. Kev kub-dip galvanizing muab kev tiv thaiv zoo heev, tab sis nws ntsib kev sim tshuab ncaj qha thaum lub sijhawm teeb tsa: thaum cov pab pawg hauv chaw txiav cov xov, cov hniav tshuab txiav tawm ib feem ntawm cov hlau ntawm qhov sib koom ua ke. Yog tias cov txheej zinc tsis muaj kev nplaum zoo, kev ntxhov siab ntawm lub tshuab tuaj yeem ua rau cov txheej galvanizing ib puag ncig tev tawm lossis tawg zoo li xim qhuav, ua rau cov hlau hauv qab tsis muaj zog rau xeb thaum ntxov.
Yuav kom daws tau qhov teeb meem no, pebkub-dip galvanizingcov txheej txheem tsom mus rau cov kev cai uas tau tsim los ntawmEN 10240kev qhia tshwj xeeb:Sab Hauv Zinc≥55μm(nrog rau qhov tseem ceeb ntawm qhov chaw sab hauv du uas tsis muaj cov zinc nodules ntxhib) thiabSab Nraud Zinc≥63μm.Peb saib xyuas lub sijhawm ntxuav kua qaub thiab qhov kub ntawm lub lauj kaub zinc nrog qhov tseeb siab. Qhov sib npaug no tso cai rau cov zinc yaj thiab lub hauv paus hlau kom sib txuas zoo, tsim cov txheej hlau-zinc alloy ruaj khov. Thaum cov cuab yeej xov txiav rau hauv cov yeeb nkab, cov txheej zinc tseem txuas nrog cov hlau yam tsis tev rov qab. Txawm tias nyob ntawm cov hauv paus ntawm cov xov tshiab txiav qhov twg cov hlau liab qab raug nthuav tawm, cov txheej zinc ib puag ncig muab kev tiv thaiv anodic sacrificial, pab txo qhov xeb mus sij hawm ntev.
Cov chav kuaj ntsev ntsuam xyuas cov qauv txheej txheem galvanized kub-dip.
Peb Txoj Kev Cog Lus Zoo & Kev Ua Raws Cai
Hauv cov saw hlau xa khoom lag luam, kev sib npaug ntawm cov peev nyiaj yuav khoom nrog rau kev ua haujlwm tiag tiag yog qhov tseem ceeb. Txhua qhov ntev, kev txwv carbon, thiab qhov tuab ntawm txheej uas tau teev tseg saum toj no tsis yog qhov tshwj xeeb xaiv tau; nws sawv cev rau peb tus qauv tsim khoom.
Peb cov kab ntau lawm ua haujlwm raws li cov txheej txheem tswj xyuas zoo uas tau sau tseg kom ntseeg tau tias txhua pawg ua raws li cov lus qhia tshwj xeeb tsim nyog. Peb cog lus tias yuav xa peb cov kav hlau raws li tus qauv, thiab txhua qhov kev txiav txim yuav raug kuaj xyuas sab hauv ua ntej xa khoom zaum kawg.
Tsis tas li ntawd xwb,YUANTAI DERUNTxais tos tag nrho thiab koom tes nrog txhua lub koom haum tshuaj xyuas sab nraud uas peb cov neeg siv khoom xaiv los ua. Kev zoo ntawm kev ntseeg tau nyob ntawm kev ua raws li kev siv tshuab thiab kev pom tseeb ntawm kev tsim khoom.
Lub sijhawm tshaj tawm: Lub Rau Hli-09-2026
