Cov yam ntxwv zoo ntawm cov hlau dov no thiab nws cov yam ntxwv ntawm lub zog ua rau nws muaj feem cuam tshuam rau kev siv nws hauv ntau yam kev lag luam hauv lub tebchaws. Nyob ntawm thaj tsam ntawm daim ntawv thov, xaiv ntau hom thiab ntau thiab tsawg ntawm cov channel. Lawv yog siv nyob rau hauv kev tsim kho vaj tse thiab kev lag luam, mechanical engineering, tsheb lub tsev, thaum lub sij hawm kho ntau yam, rau kev tsim cov racks thiab reinforcements ntawm qab nthab, nyob rau hauv lub sab nraum zoov advertising thiab rau installation ntawm ramps.
Channel tuav tau nquag siv los ua cov txheej txheem hauv kev tsim cov cranes, txuas hniav, high-voltage fais fab kis tau tus yees, roj rigs, txhua lub tsev thav duab thiab kaw kev sib txuas lus. Txhua qhov chaw muaj zog ntawm cov khoom siv hnyav nrog qhov hnyav hnyav ua lub luag haujlwm tseem ceeb.
Tsim channel
Cov khoom tseem ceeb rau kev tsim cov khoom no yog steel (cov qauv carbon, low-alloy, kub dov thiab txias-dov). Muaj cov kub dov (nrog rau qhov zoo tib yam thiab nce qhov tseeb dov) thiab khoov channel.
Kub-dov hlau yog tus cwj pwm los ntawm kev sib luag ntawm cov txee, tab sis lawv tuaj yeem ua nrog txoj kab nqes (tsis pub ntau tshaj 10%). Qhov ntev ntawm cov channel rau cov hom phiaj dav dav lossis tshwj xeeb (tshwj xeeb, rau kev lag luam tsheb) txawv ntawm qhov dav thiab qhov siab ntawm cov txee (qhov loj me yog muab rau hauv GOST 8240-89 thiab 19425-74). Ib qho GOST cais muaj rau cov profiles rau lub tsev tsheb (GOST 5267.1-90).
Cov khoom khoov yog pom qhov txawv ntawm qhov pom ntawm lub kaum sab hauv ntawm lub txee thiab tuaj yeem ua vaj huam sib luag thiab txee tsis sib npaug. Nws muaj xws li ib tug channel nrog qhov ntev (GOST 8278-75) mus txog 12 meters ntev, txawm li cas los xij, ntev profiles kuj raug tsim los txiav txim.
Channel sizes
Thaum xaiv qhov profile, lawv tau coj los ntawm nws qhov tseem ceeb, uas txiav txim siab qhov siab, dav thiab tuab ntawm txee, phab ntsa thickness, lub vojvoog ntawm lub voj voog sab hauv lossis kev sib tw ntawm cov txee.
Muaj ntau ntau yam, qhov ntau thiab tsawg thiab cov yam ntxwv uas tau tswj hwm los ntawm cov qauv. Yog li, qhov zoo ntawm cov khoom yog ib qho yooj yim los txiav txim los ntawm kev sib piv qhov tseeb qhov ntev ntawm cov channel nrog cov teev hauv GOST.
Subtleties of marking
Thaum kos ib qhov profile, qhov ntev feem ntau qhia hauv centimeters thiab ib tsab ntawv qhia txog tus kheej qhov ntsuas. Piv txwv li, ib qho 8P channel, uas nws qhov ntev yog tus qauv, qhia tias nws qhov siab yog 8 centimeters, thiab cov txee yog sib npaug. Los ntawm txoj kev, cov khoom lag luam nrog qhov loj me no feem ntau yog siv los txhawb lub tsev, txij li lawv tau welded yam tsis muaj teeb meem, thiab yog tsim los ntawm cov pa roj carbon ib nrab thiab cov pa roj carbon zoo.
Txhawm rau txo cov hlau siv ntawm kev tsim kho, 12P channel kuj tseem siv, uas txawvsiab zog zog. Tab sis qhov kub-dov profile 16P yog qhov nrov tshaj plaws.
Qhov tshwj xeeb ntawm kev siv cov hlau dov feem ntau yog nyob ntawm qib ntawm cov hlau uas siv rau nws cov khoom. Piv txwv li, rau cov ntawv thov nyob rau sab qaum teb, qhov uas tsis muaj qhov kub thiab txias yog cov qauv, siv cov kab uas ua los ntawm cov hlau tsis tshua muaj carbon 09G2S. Qhov no yog vim muaj zog txhua yam ntawm qib steel, yooj yim ntawm vuam, tsis kam mus rau qhov kub thiab txias.
