Ib yam ntawm cov hlau dov yog cov yeeb nkab duab plaub. Yog tias koj saib cov khoom los ntawm qhov kawg, koj tuaj yeem pom cov duab plaub hollow nrog cov ces kaum sib npaug. Cov khoom tau txais nws lub npe los ntawm cov duab profile.
Rectangular pipes ntawm dov hlau ua lag luam yog tsim nyob rau hauv ntau txoj kev.
Kom tau txais cov khoom lag luam zoo sib xws, cov kav dej puag ncig yog siv los ua qhov khoob. Lawv muab dov rau hauv lub xeev txias lossis kub, thiab cov khoom tso tawm yog cov khoom txias lossis kub ua haujlwm.
Hom tom ntej no yog cov kav dej hluav taws xob (lub kaum sab xis hlau). Lawv khoov rau ntawm cov cuab yeej tshwj xeeb, thiab tom qab ntawd welded nrog ib txoj hlua ncaj nraim. Cov yeeb nkab no tuaj yeem raug calibration txias, tom qab ntawd cov khoom tiav lawm. Txoj kev tsim khoom no ua rau cov khoom siv nrog lub ntsej muag huv thiab qhov tseeb dua.
Cov yeeb nkab plaub muajdav dav. Cov yam ntxwv tseem ceeb ntawm cov khoom yog nws qhov loj me. Thawj nyob rau hauv daim ntawv teev cov ntaub ntawv ntawm hom no yog cov yeeb nkab me tshaj plaws, qhov ntev ntawm cov khoom yog 15 los ntawm 10 millimeters. Phab ntsa thickness txawv ntawm 1 mus rau 2 hli. Cov neeg sawv cev loj tshaj plaws ntawm cov kav dej zoo li lub cev yog cov khoom lag luam 180 los ntawm 150 mm (nrog rau phab ntsa tuab ntawm 8 txog 14 mm).
Cov khoom siv kuj tau tsim tshwj xeeb qhov ntev, uas, nrog rau phab ntsa tuab ntawm 8 hli, ncav cuag "qhov ntev" ntawm 230 los ntawm 100 hli.
Tus nqi ntawm cov khoom ncaj qha nyob ntawm lawv qhov loj. Ib tug dav assortment tso cai rau koj mus nrhiav tau yooj yim cov ntaub ntawv. Tus nqi ntawm cov khoom kuj yog nyob ntawm hom hlau uas nws tau ua.
Lub xeev cov qauv muab rau 2 cov chav kawm raug (ib txwm thiab siab) uas cov yeeb nkab muaj peev xwm muaj.
Cov khoom lag luam yog tsim los ntawm cov pa roj carbon steel ntawm qhov zoo tib yam, thaum lawv cov khoom siv kho tshuab yog normalized (pawg A). Tsis tas li ntawd, cov khoom siv yog ua los ntawm cov hlau tsis zoo (pawg B). Hauv qhov thib ob, cov yam ntxwv ntawm cov neeg kho tshuab thiab cov tshuaj muaj pes tsawg leeg ntawm cov hlau yog normalized.
Cov qauv kuj tseem ua raws li qhov yuav tsum tau ua ntawm qhov zoo ntawm cov yeeb nkab uas yuav tsum muaj. Cov txheej txheem no nruj heev, yog li cov khoom siv tau ruaj khov thiab zoo.
Lub teeb yuag, yooj yim ntawm kev siv thiab lub zog muaj zog txiav txim siab qhov tseem ceeb ntawm daim ntawv thov ntawm cov khoom. Ua ntej tshaj plaws, cov ntaub ntawv no mus raukev tsim cov qauv hlau ntawm qhov sib txawv complexity.
Lawv feem ntau siv hauv kev tsim kho tshuab, kev tsim kho, thiab hauv lub neej txhua hnub. Cov yeeb nkab duab plaub tso cai rau kev tsim cov qauv hlau pheej yig.
Cov khoom lag luam hauv kev tsim kho tshuab yog siv rau kev tsim cov welded lub cev ntawm cov tshuab thiab cov tshuab (tsheb, tsheb laij teb, tsheb, locomotives). Cov qauv tsim, laj kab, racks, kev txhawb nqa yog tsim los ntawm tib cov ntaub ntawv. Hauv kev tsim kho, thav duab ntawm cov khoom, nrog rau cov khoom siv thauj khoom welded, yog tsim los ntawm cov kav dej. Los ntawm cov khoom koj tuaj yeem ua cov ntaiv, railings, thav ntawv rau rooj vag thiab qhov rooj. Nyias-walled khoom yog tsim rau zus tau tej cov khoom lag luam thiab rooj tog.
Kev siv cov kav dej tso cai rau koj kom nrawm thiab yooj yim rau kev teeb tsa ua haujlwm, nrog rau txuag hlau.
