Lub nqaj crane yuav tsum ua tau raws li qhov xav tau:
(1) Lub taub qab welds ntawm sab sauv thiab qis flange daim hlau feem ntau xav tau kev siv ncaj seam taub qab vuam ntawm tsis siv neeg vuam, thiab yuav tsum tau nkag mus vuam. Thaum lub pob tw weld ntawm lub caij ntuj sov flanges nyob rau hauv thaj tsam ntawm 1/3 ntawm qhov ntev, nws tsim nyog siv 45O ~ 55O oblique pob tw;
(2) Lub flange los yog lub web Hoobkas splicing sib koom yuav tsum tsis txhob nyob rau hauv tib seem, yuav tsum tau sim stagger ntau tshaj 200mm, sib koom qhov chaw yuav tsum nyob rau hauv lub ncua sij hawm ntawm txog 1/3 mus rau 1/4 beam los ntawm kev txhawb nqa; Rau lub pob tw weld ntawm kab rov tav thiab kab rov tav kev taw qhia ntawm lub vev xaib, T cross kuj tuaj yeem siv rau tus ntoo khaub lig, T cross, qhov kev ncua deb ntawm qhov chaw hla yuav tsum tsis pub tsawg tshaj 200mm; Thaum lub splicing weld cuam tshuam nrog lub stiffener, lub stiffener thiab lub web sib koom ua ke fillet weld yuav tsum tau cuam tshuam, thiab qhov kev ncua deb ntawm nws kawg thiab lub splicing weld yog li 50 hli.
(3) Lub arc pib phaj xaiv rau pob tw weld yuav tsum yog tib yam li cov khoom thiab thickness ntawm lub hauv paus hlau, thiab daim ntawv ntawm seem yuav tsum zoo ib yam li lub hauv paus hlau. Rau kev sib txuas ntawm crane nqaj thiab nres qauv, lub luag haujlwm hnyav crane nqaj yuav tsum tau txuas nrog lub zog siab bolt, thaum lub teeb thiab nruab nrab crane nqaj tuaj yeem txuas rau ntawm qhov chaw. Cov khoom siv raug tshem tawm yuav tsum tsis txhob welded rau ntawm qhov nro flanges ntawm crane nqaj, thiab kev sib txuas ntawm qhov nro flanges ntawm crane nqaj thiab cov kab rov tav kev txhawb nqa yuav tsum tau bolted thiab yuav tsum tsis txhob welded.
