EN 10255 STEEL YEEB

- Txoj Haujlwm Tseem Ceeb Installing: EN 10255 yog lub npe loj "}}}}}} ecloy ecloy steel leeg rau vuam thiab xov ua yeeb yam). Nws cov tshiab version yog en 10255: 2015, hloov lub version ua ntej tshaj plaws en 10255: 2004+ A1: 2007.

{{0 {}} Cov qauv ntawm daim ntawv thov:
{{0- Daim Npog Yeej Hlau Kav Nrog Ib Txoj Kab Tawm Sab Nraud Los ntawm 10.2mm txog 165.1mm (coj mus rau xov qhov ntev ntawm 1/8 txog 1/6).
Nws tau cais los ntawm thickness rau hauv nruab nrab series thiab hnyav series, nrog rau peb hom thickness.
{- Cov keeb kwm kev hloov zuj zus: Cov qauv hloov zuj zus los ntawm British Standification BS 1387: 1985 thiab tam sim no muaj rau qis {} Kev siv roj ntau npaum li roj thiab dej.

(1) Qhov ntev thiab kev ua kom ntev

• Kev Qhia Tawm Series:

• Yuav Tsum Tau Yuav Tsum:Tus qauv nruj me ntsis cov txheej txheem rau cov kev sib txawv ntawm cov cheeb tsam sab nraud, phab ntsa thickness thiab ncaj. Piv txwv li, kev ua siab ntev ntawm lub cheeb tsam sab nraud yuav tsum tau tswj kav rau hauv ± 0.75%.

(2) Khoom thiab Khoom

• Kev faib tawm qib hlau:

{{0 {}} tsis-}} alloy steel: conforms rau 10020 kev faib tawm. Cov qhab nia muaj xws li S195t (qib hlau qib 10026), thiab lwm yam.

• Cov Khoom Siv Neeg Kho Tshuab:

-}} {{{-} Tus qauv siv roj carbon monoxide (C).

 
(1) cov txheej txheem tsim khoom

Cov txheej txheem ntau lawm ntawm Seamless Steel Kave suav nrog:
1.Rawb cov khoom xaiv: siab {- zoo tsis- almoy hlau bilkets;
2. Cua sov thiab tho: lub billet yog rhuab rau lub xeev yas thiab tom qab ntawd nkaug los ua cov duab.
3. Kub Rolling sizing: tswj lub taub sab nraud thiab phab ntsa thickness los ntawm kub dov;
4. Kev kho cua sov: tshem tawm cov kev ntxhov siab uas muaj kev ntxhov siab (xws li annealing);
5. Nto Kev Kho Mob: Pickling, phosphating lossis kub- dip galvanizing (ib kauj ruam tseem ceeb rau anti- corrosion).

(2) cov ntsiab lus tseem ceeb ntawm cov txheej txheem galvanizing
- Prevention of immersion cracks: High-hardness steel pipes (HRC>50) Yuav tsum tau yauv mus ua kev ntxhov siab ntawm 450 ~ 650℃ua ntej pickling kom tiv thaiv hydrogen embrittlement pob.

-} txheej txheej yuav tsum tau: cov txheej txheem galvanized yuav tsum tau ua kom tusyees tus qauv (xws li cov kev cai rau cov roj ntsha hauv T / CAS - CGAS 018-2021).

(3) Ntawv pov thawj thiab kev xeem
- CE ntawv pov thawj hom:
{{0- System 3: Tested thiab muaj ntawv pov thawj los ntawm lub cev ceeb toom (NB) ntawm European Union;
{{0- system 4: Chaw Tsim Tshuaj CIAB LUS {2} Kev tshuaj xyuas + DOCTING DOP (tshaj tawm kev tswj hwm) + kev tswj hwm lub Hoobkas sab hauv.
Cov Ntsiab Lus Tseem Ceeb: Qhov ntev ntev kev ua haujlwm, tawm dag zog, thiab cov khoom muaj kev phom sij (xws li ROHS).

• Core Appratios:

- roj thiab roj: qis}}}}}}}} tiv taus galvanized txheej);
-} architecture thiab nkoj: cov qauv tsim qauv, kev tiv thaiv hluav taws kub;
{{0 {{}} Cov Khoom Siv Tshuaj: Reactor Pipelines, Zauv Khoom Noj Khoom Haus Ntim Ntim Machinery Cov Qauv.

En 10255, raws li tus qauv tseem ceeb rau tsis-}}}} alloy welded xov paj hauv:
1. Kev Tsim Hnav Tsho: Nqi txo kev thauj mus los thiab cov nqi teeb tsa;
2. Txheej txheem hloov tau: txoj kev siv tshuaj lom neeg zoo txhawb nqa vuam thiab galvanizing ua;
3. Ib puag ncig txoj kev phooj ywg thoob plaws tag nrho lub neej lub neej: hauv 68% ntawm cov ntawv thov, cov tshuaj carbon paug roj carbon ntau dua cov khoom siv xws li iav thiab txhuas.