Kauv kav, tseem hu ua kauv steel kav los yog kauv welded kav, yog tsim los ntawm dov low-carbon structural steel los yog low-alloy structural steel strips rau hauv cov yeeb nkab billet ntawm ib tug kauv lub kaum sab xis (lub npe hu ua lub kaum sab xis) thiab ces welding. sib khi. Lawv pab kom tsim cov kav hlau loj loj los ntawm cov hlau nqaim.
Daim ntawv thov:
Kauv kav feem ntau yog siv nyob rau hauv cov roj thiab cov nkev roj xa mus pipelines. Lawv cov lus qhia tshwj xeeb tau qhia nyob rau hauv cov nqe lus ntawm sab nraud * phab ntsa thickness. Kauv cov kav dej tuaj nyob rau hauv ob qho tib si ib leeg thiab ob sab welded ntau yam, thiab cov kav dej welded yuav tsum xyuas kom meej tias lawv cov hydraulic siab kuaj, tensile lub zog ntawm weld seam, thiab txias dabtsi yog khoov kev ua tau zoo raws li cov qauv.
Txheej txheem ntau lawm:
Cov khoom siv raw, suav nrog cov hlau sawb coils, vuam hlau, thiab cov fluxes, raug kuaj xyuas lub cev thiab tshuaj lom neeg ua ntej muab tso rau hauv kev siv.
Cov hlau sawb taub hau thiab tails yog pob tw-welded siv ib leeg-los yog ob-xaim submerged arc vuam, ua raws li kev siv tsis siv neeg submerged arc vuam rau seam kho tom qab cov yeeb nkab dov.
Ua ntej tsim, steel sawb undergoes leveling, trimming, ntug planing, deg tu, conveying, thiab pre-bending.
Hluav taws xob tiv tauj ntsuas ntsuas tswj lub siab ntawm cov xovxwm thooj voos kheej kheej ntawm ob sab ntawm lub conveyor, kom ntseeg tau tias kev thauj mus los ntawm cov hlau du.
Sab nraud lossis sab hauv yob txoj kev yog ua haujlwm.
Weld gap control device yog siv los xyuas kom meej tias qhov sib txawv weld ua tau raws li qhov yuav tsum tau ua ntawm vuam, nrog kev tswj nruj ntawm cov yeeb nkab txoj kab uas hla, ntug tsis sib haum, thiab vuam qhov sib txawv.
Ob leeg sab hauv thiab sab nraud welding ntiav Lincoln Electric vuam tshuab rau ib leeg-los yog ob-xaim submerged arc vuam, ua tiav cov khoom siv vuam ruaj khov.
Ua tiav weld seams undergo nruam online ultrasonic tsis siv neeg qhov tsis pom kev, kom ntseeg tau 100% kev pab cuam ntawm kev kuaj tsis muaj kev puas tsuaj rau kauv welds. Nyob rau hauv cov ntaub ntawv ntawm qhov tsis xws luag, lub tswb tsis siv neeg tau tshwm sim, thiab cov cim raug txau rau cov neeg ua haujlwm tsim khoom los kho cov txheej txheem tam sim ntawd thiab tshem tawm qhov tsis xws luag.
Cua plasma tej tshuab yog siv los txiav cov kav hlau rau hauv tus kheej ntev.
Tom qab txiav, txhua pawg ntawm cov kav hlau tau ua tiav kev tshuaj xyuas thawj zaug, tshuaj xyuas cov khoom siv kho tshuab, tshuaj lom neeg muaj pes tsawg leeg, fusion txheej txheem ntawm vuam seam, nto zoo ntawm cov yeeb nkab steel, thiab tsis muaj kev puas tsuaj los xyuas kom ntseeg tau tias cov yeeb nkab ua cov txheej txheem tsim nyog. ua ntej kev tsim khoom pib.
Cov cheeb tsam uas txuas ntxiv sonic flaw nrhiav kom tau cov cim ntawm lub vuam seam undergo phau ntawv ultrasonic thiab X-ray rov kuaj xyuas. Yog tias qhov teeb meem raug lees paub, kho kho, ua raws li kev tshuaj ntsuam xyuas tsis muaj kev puas tsuaj kom txog thaum tshem tawm qhov tsis xws luag.
Tag nrho cov yeeb nkab steel nrog lub pob tw welds thiab T-joints sib tshuam nrog kauv welds raug kuaj X-ray TV lossis duab hluav taws xob.
Txhua cov yeeb nkab steel tau dhau los ntawm kev ntsuas hydrostatic siab nrog radial sealing. Kev ntsuas siab thiab lub sijhawm yog tswj hwm nruj los ntawm cov yeeb nkab steel hydrostatic siab microcomputer kuaj cov cuab yeej, nrog cov ntsuas ntsuas tau txiav luam tawm thiab kaw.
Kev ua haujlwm ntawm cov yeeb nkab kawg ua kom muaj kev tswj xyuas qhov kawg ntawm lub ntsej muag perpendicularity, zawj lub kaum sab xis, thiab lub ntsej muag hauv paus.
