ASTM A334Qib 6yog cov yeeb nkab hlau carbon uas muaj zog heev, kub tsawg nrog cov ntsiab lus carbon siab tshaj plaws ntawm 0.30%, cov ntsiab lus manganese ntawm 0.29-1.06%, lub zog tensile tsawg kawg nkaus ntawm 415Mpa (60ksi), thiab lub zog tawm ntawm 240Mp (35ksi).
Nws yog siv rau hauv thaj chaw ntawm cov chaw ua roj liquefied natural, polar engineering, thiab refrigeration technology, hloov kho rau qhov chaw kub tsawg heev.
ASTM A334 Qib 6 cov yeeb nkab hlau tuaj yeem tsim los ntawm cov txheej txheem seamless lossis welded.
Cov txheej txheem vuam suav nrog ntau txoj kev xws liKev vuam hluav taws xob tsis kam (ERW)thiabKev vuam siv submerged arc (SAW).
Hauv qab no, yog cov txheej txheem tsim khoom rauKev Vuam Ntev Ntev Hauv Qab Dej Arc (LSAW).
Ua ib lub chaw tsim khoom ntawm cov kav hlau welded, peb muaj peev xwm ua kom tau raws li qhov xav tau tshwj xeeb ntawm peb cov neeg siv khoom sib txawv, muab ntau yam khoom xaiv kom ntseeg tau tias muaj kev ua tau zoo tshaj plaws thiab zoo rau txhua daim ntawv thov.
Qhov vuam ib daim ntawm LSAW tubing ua rau lub zog ntawm lub raj zoo dua qub, ua rau nws tiv taus kev ntxhov siab ntau dua.
Tsis tas li ntawd xwb, nws zoo tagnrho rau kev tsim cov yeeb nkab hlau loj thiab phab ntsa tuab uas ua tau raws li qhov xav tau ntawm ASTM A334 Qib 6 hauv cov txheej txheem loj thiab kev xa khoom siv hluav taws xob, xws li kev tsim cov chaw loj liquefied natural gas (LNG).
Tib lub sijhawm, kev tswj qhov ntev kom meej ua kom cov yeeb nkab txoj kab uas hla thiab phab ntsa sib xws rau kev txhim kho kev ntseeg tau ntawm kev sib txuas thiab kev tiv thaiv kev xau hauv cov kav dej.
Ua kom zoo li qub los ntawm kev ua kom sov mus rau qhov kub thiab txias tsis pub tsawg dua 1550 ° F [845 ° C] thiab txias hauv huab cua lossis hauv chav txias ntawm lub cub tawg uas tswj hwm huab cua.
Yog tias xav tau kev kho kom sov, nws yuav tsum tau sib tham.
Cov tshuaj lom neeg ntawm ASTM A334 Qib 6 yeeb nkab yog tsim los kom ntseeg tau tias muaj cov khoom siv zoo ntawm qhov kub qis thiab muaj zog txaus rau kev pabcuam txhim khu kev qha hauv qab cov xwm txheej hnyav.
| Qib | C (Cov pa roj carbon) | Mn (Manganese) | P (Phosphorus) | S (Xim av) | Si (Silicon) |
| Qib 6 | siab tshaj plaws 0.30 | 0.29-1.06 | siab tshaj plaws 0.025 | siab tshaj plaws 0.025 | tsawg kawg 0.10 |
| Rau txhua qhov kev txo qis ntawm 0.01% carbon hauv qab 0.30%, kev nce ntawm 0.05% manganese saum 1.06% yuav raug tso cai rau qhov siab tshaj plaws ntawm 1.35% manganese. | |||||
Rau cov hlau Qib 1 lossis Qib 6, nws tsis raug tso cai muab cov qib alloying rau lwm cov ntsiab lus tshaj li cov uas xav tau. Txawm li cas los xij, nws raug tso cai ntxiv cov ntsiab lus tsim nyog rau kev deoxidation ntawm cov hlau.
Cov kev sim cuam tshuam rau cov yeeb nkab hlau Qib 6 tau ua tiav ntawm -45 ° C [-50 ° F] ua ib txoj hauv kev los txheeb xyuas qhov tawv thiab kev cuam tshuam ntawm cov khoom siv hauv qhov chaw kub tsawg heev.
Qhov kev sim tau ua los ntawm kev xaiv lub zog cuam tshuam tsim nyog raws li phab ntsa tuab ntawm cov yeeb nkab hlau.
Cov nqi elongation tsawg kawg nkaus suav rau txhua 1/32 nti.[0.80 hli] txo qis hauv phab ntsa tuab.
| Qib | Rockwell | Brinell |
| ASTM A334 Qib 6 | B 90 | 190 |
Txhua lub yeeb nkab yuav tsum raug kuaj xyuas tsis muaj kev puas tsuaj los ntawm hluav taws xob lossis hydrostatically raws li Specification A1016/A1016M.
Tshwj tsis yog tias tau teev tseg lwm yam hauv daim ntawv xaj yuav khoom, hom kev sim uas yuav siv yuav tsum yog nyob ntawm tus neeg tsim khoom xaiv.
Kev Ntsuas Kom Sib Nqus
Kev Ntsuas Flare (Cov Raj Seamless)
Kev Ntsuas Flange (Cov Raj Welded)
Kev Ntsuas Flattening Rov Qab
1. Cov chaw tsim roj av ua kua (LNG)Vim nws cov khoom siv kub qis zoo heev, Cov yeeb nkab hlau Qib 6 yog siv dav hauv kev tsim LNG, chaw khaws khoom thiab kev thauj mus los. Cov chaw no xav tau cov ntaub ntawv uas tswj tau lub zog siab thiab tawv zoo ntawm qhov kub qis heev.
2. Cov txheej txheem thauj roj thiab roj av: siv los thauj cov kua lossis cov roj hydrocarbons, xws li cov roj av liquefied (LPG) thiab lwm cov kua dej kub qis hauv qhov chaw kub qis.
3. Kev siv tshuab ua kom txias thiab chaw cia khoom txiasQhov no kuj siv rau lwm qhov chaw ntawm kev siv tshuab tub yees, xws li kev khov thiab txias cia cov txheej txheem hauv kev ua zaub mov thiab lwm yam txheej txheem tshuaj uas xav tau kev ua haujlwm kub qis.
4. Kev tsim kho PolarHauv cov haujlwm engineering hauv thaj chaw polar, xws li cov chaw tshawb fawb hauv Arctic lossis Antarctica, lawv siv los tsim cov kab ke conveyor ruaj khov thiab txhim khu kev qha thiab cov qauv uas yuav tsum muaj peev xwm tiv taus qhov kub thiab txias heev thiab cov xwm txheej ib puag ncig hnyav.
5. Cov tshuab cua txias thiab cov khoom sib pauv cua sov: Kuj tseem siv rau hauv cov tshuab cua txias loj thiab cov khoom sib pauv cua sov, uas yuav tsum ua haujlwm tau zoo ntawm qhov kub qis kom ntseeg tau tias lub kaw lus ua haujlwm tau zoo thiab muaj kev nyab xeeb.
6. Kev tsim hluav taws xob thiab chaw nres tsheb fais fabHauv cov haujlwm tsim hluav taws xob tshwj xeeb, xws li qee hom chaw tsim hluav taws xob, Cov kav hlau Qib 6 yuav siv tau los tswj cov kua lossis cov pa roj ntawm qhov kub qis kom ntseeg tau tias kev ua haujlwm zoo thiab muaj txiaj ntsig ntawm lub kaw lus.
EN 10216-4:P265NL: Feem ntau siv rau cov hlab ntsha cryogenic thiab cov kav dej cryogenic, nws muaj cov tawv zoo thiab lub zog thiab tsim nyog rau kev siv hauv cov chaw cryogenic.
DIN 17173:TTSt41NTsim los rau cov kev siv uas kub tsawg, nws muab kev ua haujlwm zoo heev uas kub tsawg thiab feem ntau siv rau hauv cov khoom siv thiab cov kav dej uas xav tau qhov chaw ua haujlwm kub tsawg heev.
JIS G3460: STPL46Siv rau cov kav dej thauj mus los hauv qhov chaw kub qis, muaj peev xwm tiv taus qee qhov kev cuam tshuam thiab kev nyuaj siab ntawm qhov kub qis.
GB/T 18984:09Mn2V: Cov khoom siv no yog tshwj xeeb hauv kev tsim cov raj hlau tsis muaj seamless rau kev siv hauv qhov chaw kub qis, nrog rau qhov kub qis zoo thiab tsis kam tawg.
Thaum xaiv cov ntaub ntawv sib npaug no, nws yog ib qho tseem ceeb kom ntseeg tau tias lawv cov tshuaj lom neeg thiab cov khoom siv kho tshuab ua tau raws li cov qauv thov thiab cov kev cai ua tau zoo.
Cov kev ntsuas no yuav tsum tau muab piv rau hauv kom meej thiab tej zaum yuav xav tau cov txheej txheem kuaj thiab ntawv pov thawj ntxiv kom paub tseeb tias cov khoom siv puas haum thiab ua tau zoo.
Txij li thaum nws tau tsim tsa xyoo 2014, Botop Steel tau dhau los ua tus thawj coj ntawmcov yeeb nkab hlaunyob rau sab qaum teb Suav teb, paub txog kev pabcuam zoo heev, cov khoom lag luam zoo, thiab cov kev daws teeb meem dav dav. Lub tuam txhab muab ntau yam yeeb nkab carbon thiab cov khoom lag luam cuam tshuam, suav nrog cov yeeb nkab seamless, ERW, LSAW, thiab SSAW, nrog rau cov yeeb nkab fittings thiab flanges tiav.
Nws cov khoom tshwj xeeb kuj suav nrog cov hlau alloys zoo thiab cov hlau stainless austenitic, tsim los ua kom tau raws li qhov xav tau ntawm ntau yam dej num pipeline.
