Cov yeeb nkab hlau kauv yog ua los ntawm kev dov cov hlau tsis muaj carbon lossis cov hlau tsis muaj hlau rau hauv cov yeeb nkab, raws li lub kaum sab xis ntawm cov kab kauv (hu ua lub kaum sab xis), thiab tom qab ntawd vuam cov yeeb nkab.
Nws tuaj yeem siv rau kev tsim cov yeeb nkab loj nrog cov hlau nqaim.
Cov lus qhia ntawm cov yeeb nkab hlau kauv yog qhia los ntawm txoj kab uas hla sab nraud * phab ntsa tuab.
Cov yeeb nkab welded yuav tsum raug kuaj los ntawm kev sim hydrostatic, lub zog tensile thiab kev khoov txias, kev ua tau zoo ntawm cov vuam seam yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm cov lus qhia.
Lub hom phiaj tseem ceeb:
Cov yeeb nkab hlau kauv feem ntau yog siv rau kev xa roj thiab roj av.
Cov txheej txheem ntau lawm:
(1) Cov khoom siv raw: hlau kauj, hlau vuam thiab flux. Yuav tsum tau kuaj xyuas lub cev thiab tshuaj lom neeg ua ntej tsim khoom.
(2) Lub taub qab vuam lub taub hau thiab tus Tsov tus tw ntawm lub kauj kom ua rau ob lub kauj sib koom ua ke, tom qab ntawd siv ib txoj hlua lossis ob txoj hlua submerged arc vuam, thiab tsis siv neeg submerged arc vuam yog saws rau vuam tom qab dov rau hauv cov yeeb nkab hlau.
(3) Ua ntej tsim, cov hlau strip yuav tsum tau leveled, trimmed, planed, nto ntxuav, thauj thiab pre bent.
(4) Lub ntsuas hluav taws xob tiv tauj siab siv los tswj lub siab ntawm lub tog raj kheej roj nias ntawm ob sab ntawm lub tshuab xa khoom kom ntseeg tau tias kev thauj mus los ntawm cov hlau strip du.
(5) Rau kev tsim cov yob, siv kev tswj sab nraud lossis kev tswj sab hauv.
(6) Siv lub cuab yeej tswj qhov sib txawv ntawm qhov vuam kom ntseeg tau tias qhov sib txawv ntawm qhov vuam ua tau raws li qhov yuav tsum tau vuam, tom qab ntawd lub taub ntawm cov yeeb nkab, qhov tsis sib xws thiab qhov sib txawv ntawm qhov vuam tuaj yeem tswj tau nruj me ntsis.
(7) Ob qho tib si vuam sab hauv thiab vuam sab nraud siv American Lincoln Electric vuam tshuab rau ib txoj hlua lossis ob txoj hlua submerged arc vuam, kom tau txais kev ua haujlwm vuam ruaj khov.
(8) Txhua qhov vuam txuas raug tshuaj xyuas los ntawm kev siv lub tshuab ultrasonic tsis siv neeg online kom ntseeg tau tias 100% NDT kev xeem npog tag nrho cov vuam txuas. Yog tias muaj qhov tsis zoo, nws yuav ceeb toom thiab tsuag cov cim, thiab cov neeg ua haujlwm tsim khoom yuav kho cov txheej txheem txhua lub sijhawm kom tshem tawm cov qhov tsis zoo raws sijhawm.
(9) Cov yeeb nkab hlau raug txiav ua ib daim los ntawm kev siv tshuab txiav.
(10) Tom qab txiav ua ib lub yeeb nkab hlau, txhua pawg ntawm cov yeeb nkab hlau yuav raug rau qhov kev tshuaj xyuas thawj zaug kom paub tseeb tias cov khoom siv kho tshuab, cov tshuaj lom neeg muaj pes tsawg leeg, cov xwm txheej sib xyaw, qhov zoo ntawm cov yeeb nkab hlau thiab NDT kom ntseeg tau tias cov txheej txheem ua yeeb nkab tau tsim nyog ua ntej nws tuaj yeem muab tso rau hauv kev tsim khoom.
(11) Cov khoom uas muaj cov cim qhia txog qhov tsis zoo ntawm lub suab ntawm cov vuam yuav tsum tau kuaj xyuas dua los ntawm kev siv ultrasonic thiab X-ray. Yog tias muaj qhov tsis zoo, tom qab kho, cov yeeb nkab yuav tsum raug kuaj NDT dua kom txog thaum paub tseeb tias qhov tsis zoo tau raug tshem tawm.
(12) Cov yeeb nkab ntawm lub pob tw vuam seam thiab T-joint intersecting spiral welding seam yuav tsum tau kuaj xyuas los ntawm X-ray TV lossis zaj duab xis tshuaj xyuas.
(13) Txhua lub yeeb nkab hlau raug kuaj hydrostatic. Lub siab kuaj thiab lub sijhawm raug tswj hwm nruj me ntsis los ntawm lub cuab yeej kuaj xyuas lub computer ntawm lub yeeb nkab hlau dej siab. Cov kev ntsuas kev xeem raug luam tawm thiab kaw cia.
(14) Qhov kawg ntawm cov yeeb nkab yog machined kom raug tswj qhov perpendicularity, bevel angle thiab root face.
Lub sijhawm tshaj tawm: Lub Xya Hli-13-2022