1. Tshuaj ntsuam xyuas yuav tsum
1.1 Kev soj ntsuam tiav ntawm steel phaj Ib lub chaw tsim khoom yeeb nkab yuav tsum txheeb xyuas cov phaj rau txhua qhov cub. Kev soj ntsuam tiav thiaj li txiav txim siab yuav tsum ua raws li qhov yuav tsum tau ua ntawm steel phaj tus qauv rau cov yeeb nkab xaj.
1.2 Finished Weld Analysis Ib lub chaw tsim khoom siv yeeb nkab yuav tsum tshuaj xyuas cov hlau tiav tiav rau txhua 500 ft (152 m) lossis ntau dua ntawm cov hlau tiav tiav. Kev tsom xam ntawm qhov muaj pes tsawg leeg yuav tsum ua raws li cov txheej txheem vuam siv rau kev tso cov hlau vuam.
1.3 Kev tshuaj ntsuam xyuas yuav ua tau los ntawm cov khoom siv tshuab. Cov txiaj ntsig ntawm kev txheeb xyuas yuav tsum raug qhia rau tus neeg yuav khoom.
1.4 Thaum soj ntsuam raws li 1.1 lossis 1.2, yog tias ib qho ntawm cov qauv ua tsis tau raws li qhov yuav tsum tau ua, muab ob npaug rau tus naj npawb ntawm cov raj yuav tsum tau muab los ntawm tib batch thiab reanalyzed; txhua tus ntawm lawv yuav tsum ua kom tau raws li qhov yuav tsum tau ua. Cov yeeb nkab steel tsis tsim nyog yuav tsum tsis lees paub.
2. Mechanical zog yuav tsum
2.1 Tensile zog
2.1.1 Lub transverse tensile zog ntawm welded pob qij txha yuav tsum tau raws li qhov tsawg kawg nkaus yuav tsum tau rau qhov kawg tensile lub zog ntawm daim hlau teev. Tsis tas li ntawd, rau DxX, HXX, Jx X thiab NX X qib ntawm cov hlau, pawg 3X, 4X thiab 5X, cov khoom sib hloov tensile ntawm cov khoom siv hauv paus (phaj) yuav tsum txiav txim siab los ntawm cov qauv txiav los ntawm cov hlau kho cua sov. Cov khoom no yuav tsum ua kom tau raws li qhov yuav tsum tau muaj ntawm cov cuab yeej cuab tam sim ntawm cov qauv phaj.
2.1.2 Tus naj npawb ntawm cov kev xeem I. Rau txhua batch ntawm cov yeeb nkab steel tiav, yuav tsum tau npaj ib qho piv txwv.
2.1.3 Cov qauv thiab kev taw qhia Kuv cov qauv yuav tsum raug txiav hla lub vuam seam ntawm qhov kawg ntawm cov yeeb nkab steel tiav, thiab tej zaum yuav txias flattened ua ntej zaum kawg machining kom loj.
2.1.4 Test Methods - Cov qauv yuav tsum tau npaj raws li QW-150 ntawm Volume 6 ntawm ASME Furnace thiab Pressure Vessel Code, thiab yuav tsum tau sim nyob rau hauv chav tsev kub raws li A370 Txoj Kev thiab Txhais.
2.2 Transverse Guided Bending Tests of Welds.
2.2.1 Qhov yuav tsum tau muaj I. Ib qho qauv yuav tsum dhau qhov kev ntsuas khoov yog tias, tom qab khoov, tsis muaj cov kab nrib pleb lossis lwm yam tsis xws luag hauv ntau tshaj 1/8in (3.2 mm) nyob rau hauv ib qho kev taw qhia ntawm cov hlau weld, los yog nruab nrab ntawm cov vuam thiab lub hauv paus. hlau, sab nraum lub vuam. Cov kab nrib pleb tshwm sim raws li cov npoo ntawm cov qauv thaum lub sij hawm ntsuas thiab ntsuas tsawg dua 1/4in (6.4mm) nyob rau hauv ib qho kev taw qhia yuav tsis raug txiav txim raws li qhov ua tsis tiav.
2.2.2 Tus naj npawb ntawm Kev Xeem - Ib qho kev sim (ob qhov qauv) yuav tsum tau ua rau ntawm txhua cov yeeb nkab tiav los sawv cev rau ntau.
2.2.3 Qhov chaw qhov chaw thiab kev taw qhia ntawm kev cuam tshuam ntawm ib lossis ob qho kev khoov yuav tsum raug txiav hla cov yeeb nkab tiav kawg ntawm qhov kev cuam tshuam vuam. Los ntawm cov neeg yuav khoom thiab cov chaw tsim khoom tau pom zoo siv lwm txoj hauv kev, thiab cov yeeb nkab thiab cov khoom siv tib yam kev sim phaj cuam tshuam, cov phaj xeem yuav tsum tau txuas mus rau qhov kawg ntawm lub tog raj kheej, thiab raws li qhov ntev seam ntawm cov yeeb nkab steel txuas ntxiv ntawm qhov vuam.
2.2.4 Test Methods - Qhov kev xeem yuav tsum tau ua ntawm A2.5.1.7 ntawm A370 tus qauv yuav tsum tau ua. Rau phab ntsa thickness ntau dua 3/8in
(9.5mm), tab sis tsawg dua 3/4in (19.0mm), qhov kev ntsuas lateral dabtsi yog khoov tuaj yeem siv los ntawm kev ntsuas lub ntsej muag thiab nraub qaum. Rau phab ntsa thicknesses Ntau tshaj los yog sib npaug rau 3/4in, ob qho tib si qauv yuav tsum tau sim nyob rau hauv ib tug lateral khoov.
2.3 Hydrostatic Testing - Qeb X2 thiab X3 yeeb nkab yuav tsum tau kuaj hydrostatically raws li Tshooj 6 ntawm A530 Standard.
