Lub raj square feem ntau yog siv nyob rau hauv ntau lub tsev tsim thiab engineering cov qauv, xws li cov kab teeb hauv tsev, txuas hniav, kev sib txuas yees, nqa cov tshuab thauj khoom, nkoj, cov khoom siv hluav taws xob, cov tshuaj tiv thaiv pej thuam, cov thawv ntim khoom, thiab cov khoom lag luam kev lag luam ua lub luag haujlwm tseem ceeb heev. . Nws yog ib lub ntsiab lus uas feem ntau ntawm architects thiab tsev cov khoom lag luam yog ib txwm txhawj xeeb. Yog li cas peb tuaj yeem txhim kho qhov vuam ntawm lub raj square?
Lub raj square tseem hu ua square thiab rectangular txias-kho lub plawv hlau, hu ua square tube thiab raj raj, codenamed F thiab J, raws li.
1. Qhov tso cai sib txawv ntawm phab ntsa thickness ntawm lub raj square. Thaum lub phab ntsa thickness tsis ntau tshaj 10 hli, nws yuav tsum tsis txhob tshaj qhov zoo thiab tsis zoo ntawm nominal phab ntsa thickness 10%. Thaum cov phab ntsa thickness ntau dua 10 hli, nws yog 8% ntawm phab ntsa thickness. Tsuas yog phab ntsa thickness.
2. Kev xa khoom dav dav ntawm lub raj square yog 4000mm-12000mm, feem ntau 6000mm thiab 12000mm. Lub raj square tso cai rau kev xa khoom ntawm luv-scale thiab tsis-taw-kaw cov khoom uas tsis muaj tsawg dua 2000mm, thiab tseem tuaj yeem xa tuaj rau hauv daim ntawv ntawm kev sib tshuam. Qhov hnyav ntawm luv luv-ko taw thiab tsis-taw-kaw cov khoom lag luam yuav tsum tsis pub tshaj 5% ntawm tag nrho cov khoom xa tuaj, thiab cov cubes nrog qhov hnyav ntawm ntau tshaj 20kg / m yuav tsum tsis pub tshaj 10% ntawm tag nrho cov khoom xa tuaj.
3. Qhov curvature ntawm lub square tube yuav tsum tsis txhob ntau tshaj 2mm ib 'meter', thiab tag nrho curvature yuav tsum tsis txhob ntau tshaj 0.2% ntawm tag nrho cov ntev.
Lub raj square vuam yog ua tiav thiab txuas nrog lub tinguard raws li qhov yuav tsum tau ua ntawm cov txheej txheem, thiab qhov sib txawv stitching yog tshwj tseg. Kev tsim cov vuam sib txuas yog ib qho kev sib txuas tsis muaj zog nyob rau hauv txoj haujlwm vuam. Daim ntawv ntawm txoj kab nqes ua lub luag haujlwm tseem ceeb hauv kev tswj xyuas qhov zoo ntawm vuam seam thiab qhov zoo ntawm vuam qauv tsim.
Cov txheej txheem yuav tsum yog thawj txheej ntawm vuam yuav tsum tau welded los xyuas kom meej zoo rov qab tsim, vuam tam sim no, arc voltage, xaim xaim ceev thiab vuam ceev. Cov vuam deformation uas tsim los ntawm nruab nrab mus rau ob sab yog me dua li cov vuam ncaj qha, uas yog qhov tsim nyog rau kev txiav tawm thiab tso tawm ntawm kev ntxhov siab, thiab tsis txhob muaj kev nyuaj siab hauv vuam. Lub nqaim yas deformation cheeb tsam tsim los ntawm vuam ntawm vuam ntawm lub viav vias ncaj qha tsuas yog ib zaug xwb, thiab vim qhov kev sib tw viav vias tas mus li, cov khoom siv hluav taws xob kub yog qhov loj, qhov cua sov yog qhov loj, thiab cov yas deformation cheeb tsam tshwm sim los ntawm compression. loj, yog li lub shrinkage thiab deformation tom qab vuam yog loj.
Thaum segmented dhia vuam, txhua txheej ntawm ntu me me, qhov xav tau cua sov me me, thiab txhua txheej tau muab faib ua ob peb ntu kom dhia vuam. Txhua ntu yog qhov pib rov tsim dua ntawm cov hlau phaj txias. Txhua lub sij hawm, ib tug nqaim yas deformation cheeb tsam tshwm, yog li qhov nruab nrab qhov dav ntawm cov yas deformation cheeb tsam yog me dua li cov txheej txheej ncaj nraim los ntawm vuam, thiab ntsug contraction kuj me dua. Piv nrog rau lub viav vias vuam deformation uas tau sau ib zaug ua ke, nws yog me dua.
