Hlau channel: assortment, yam ntxwv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Channel yog ib hom khoom siv hlau uas nrov tshaj plaws. Cov khoom siv hlau no yog qhov txawv ntawm kev ua haujlwm ntev, ntau yam thiab pheej yig, ua tsaug rau nws tau pom daim ntawv thov hauv ntau qhov chaw ntawm kev tsim kho thiab kev lag luam.

txhais thiab assortment

Channel yog cov khoom siv hlau, qhov profile uas zoo li tsab ntawv P. Kab rov tav jumper ntawm tsab ntawv no yog hu ua phab ntsa, thiab ob sab uas tsim cov ceg ntawm tsab ntawv P yog hu ua txee.

Cov tuam txhab koom nrog hauv kev tsim cov khoom lag luam no muaj ntau yam khoom lag luam uas txawv ntawm ib leeg ntawm ntau tus yam ntxwv:

• khoom siv;
• manufacturing method;
• dimensions (lub tswvyim no suav nrog phab ntsa tuab, txee dav thiab qhov siab).

Cov ntsuas no cuam tshuam ncaj qha rau tus nqi ntawm cov khoom siv hlau thiab lawv cov haujlwm ua haujlwm.

Yuav nrhiav dab tsi thaum yuav?

Hais txog lub channel (nrog rau lwm ntu ntawm kab teeb), muaj ib qho kev xaiv dav dav. Raws li qhov tshwj xeeb engineering teeb meem. Nyob rau hauv rooj plaub thaum qhov tsis muaj ntawm cov channel tsis zoo rau qhov ze tshaj plaws tus qauv version tsawg dua 5%, ces nws tsim nyog xaiv cov khoom tshwj xeeb no. Yog tias qhov tsis sib xws hauv qhov tsis muaj ntau dua 5%, ces tus lej no raug tso tseg rau qhov kev pom zoo tom ntej.

Nkauj Ntxawm Channel

Ntawm cov khoom lag luam koj tuaj yeem pom 2 hom channel:

• aluminium alloy;
• steel.

Steel channel tau dhau los ua ntau yam ntawm cov neeg siv khoom, vim nws txawv ntawm tus nqi pheej yig thiab tus nqi siab ntawm lub zog thiab kav ntev. Nyob rau hauv lem, steel khoom kuj txawv nyob rau hauv hom steel siv. Nov yog:

• carbon steel channel - cov khoom zoo li no tau tswj hwm los ntawm GOST 380-2005;
• channel los ntawm qib qis-alloy steel - qhov no, kev tswj xyuas zoo yog ua raws li GOST 19281-89.

Nta thiab Specifications

Kev siv cov hlau channel hauv kev tsim kho thiab kev tsim khoom yog vim muaj ntau yam zoo. Qhov tseeb yog qhov tshwj xeeb ntawm cov khoom hlau no tshaj lwm hom dov hlau hauv qee qhov ntsuas.

• High rigidity. Cov channel muaj ib qho ntawm qhov siab tshaj plaws deflection lub zog (stiffness). Qhov no yog vim cov yam ntxwv ntawm cov khoom - kev sib cais ntawm cov hlau los ntawm axis ntawm inertia yog qhov siab tshaj plaws ntawm no. Tsuas yog ib qho I-beam muaj qhov taw qhia siab dua, txawm li cas los xij, piv rau cov channel, nws nyuaj dua los tsim nws, uas nyob rau hauvThaum kawg cuam tshuam tus nqi ntawm kev tsim khoom.
• Versatility. Ua tsaug rau U-shaped profile, steel channel yog yooj yim los siv hauv kev tsim khoom. Nws yog ib qho yooj yim rau weld lwm qhov rau nws los tsim ib qho kev tsim tshwj xeeb. Tib I-beam nyob rau hauv qhov kev hwm no noticeably poob. Qhov no tso cai rau koj kom pom kev siv U-shaped profile tsis tsuas yog hauv kev tsim kho, tab sis kuj hauv kev tsim kho tshuab, tsim cov cuab yeej tshwj xeeb thiab ntau lwm yam haujlwm.
• Ntau yam steel channel. Cov neeg tsim khoom muaj ntau yam sib txawv ntawm cov khoom siv hlau no, yog li rau txhua lub hom phiaj koj tuaj yeem xaiv cov khoom lag luam zoo tshaj plaws ob qho tib si ntawm cov nqi thiab cov yam ntxwv.

Ntxhais hmoob toj siab channel

Hauv kev tsim khoom, 2 hom kev siv thev naus laus zis tau siv, nrog rau cov channel feem ntau faib raws li hom kev tsim khoom ua 2 hom loj:

• kub dov (qhov no hom steel channel ntsuas tsis tshua siv);
• txias-tsim, lossis lwm yam - khoov.

Kub-dov tshuab suav nrog kev tsim cov hlau zoo los ntawm cov ntawv tshwj xeeb, uas tau dov rau ntawm cov tshuab tshwj xeeb. Qhov tseeb qhov tseeb ntawm cov khoom no txawv:

• A - qhov cim no sib raug rau cov channel nrog qhov raug siab ntawm qhov ntsuas qhov ntev;
• B - qhov ntsuas qhov ntsuas ntawm qhov tseeb;
• B - qhov ntsuas tsis tu ncua.

Cov khoom nrog dov qhov tseeb A thiab B yog hlaucov khoom lag luam zoo tshaj plaws, yog li tus nqi ntawm cov channel no yuav yog qhov kev txiav txim siab dua.

Txhim kho qhov zoo ntawm cov hlau kub dov channel GOST 8240-97.

Ntxhais hmoob channel

Bent channel yog cov hlau dov nrog U-shaped seem, ua los ntawm kev siv tshuab deformation txias. Cov tshuab no txawv heev ntawm cov tshuab kub-kuav los tiag. Ua li no, cov ntawv hlau yog siv los ua khoom noj, uas yog txiav rau hauv ib daim hlab thiab tom qab ntawd dov rau ntawm cov tshuab tshwj xeeb khoov. Qhov no tshwm sim ntawm qhov kub thiab txias los ntawm kev nias thiab khiav.

Muaj ntau qhov sib txawv ntawm khoov steel channel.

• Visually, hom dov hlau no tuaj yeem lees paub los ntawm kev sib tw ntawm cov ces kaum sab nrauv.
• Tsis muaj khoom tsis xws luag. Cov yam ntxwv no tau piav qhia los ntawm kev kho raws sijhawm ntawm qhov tsis txaus thaum dov ntawm cov tshuab. Nws yog qhov tshwj xeeb no uas tuaj yeem suav hais tias yog qhov txiaj ntsig tsis txaus ntseeg, vim nws yuav tsis tsim nyog los kho qhov tsis txaus tom qab.
• Tus nqi ntawm cov khoom khoov yog qhov kev txiav txim siab qis dua, vim cov nqi tsim khoom qis dua.

thaj chaw thov

Xaiv qhov kev xaiv zoo tshaj plaws rau cov khoom lag luam, koj yuav tsum coj mus rau hauv tus account lawv cov yam ntxwv. Kub dov steel channel tau nce kev tiv thaiv rau sab nraud thiab axial deformations. Qhov no yog qhov ua rau nws tseem ceeb hauv kev tsim cov choj, cov tsev lag luam thiab lwm yam khoom uas muaj kev nce loads.

Ib qho khoov channel yog me ntsis qis dua qhov kub-dov ib qho ntawm lub zog, yog li nws siv yog tias muaj kev xav tau ntxiv raucov khoom tsis yog. Thaum koj muaj kev nyab xeeb xaiv ib hom khoom khoov:

• raws li cov ntsiab lus txhawb ntxiv hauv kev tsim cov thav duab;
• thaum rov tsim kho vaj tse thiab chaw tsim kho vaj tse - qhov kev txav no tso cai rau koj kom txo tau lub hauv paus ntawm lub tsev;
• hauv kev lag luam tsheb thiab tsheb ciav hlau;
• thaum ua tiav cov haujlwm (kev teeb tsa ntawm kev faib tawm hauv tsev nyob, kev lag luam thiab kev lag luam) - qhov no, nws yuav ua tau kom muaj zog, txhim khu kev qha partitions yam tsis muaj qhov hnyav.

khoom series

Xaiv cov khoom siv hlau uas ua tau raws li qhov yuav tsum tau ua, nws tsim nyog xav txog qhov muaj nyob ntawm ntau yam. Lawv txawv nyob rau hauv lub xub ntiag los yog tsis muaj ib txoj kab nqes ntawm lub rhawv thiab qhov loj ntawm qhov profile.

Raws li GOST, cov channel steel yog sawv cev los ntawm ntau qhov sib cais, uas tau qhia hauv cov ntawv loj:

• P - cov rhawv ntawm cov khoom lag luam muaj kev sib xyaw ua ke (cov kev xaiv classic thiab feem ntau);
• L - lub teeb yuag (lub teeb) series, qhov twg cov rhawv tau teem rau tib lub sijhawm (hauv cov khoom lag luam, cov txee thiab phab ntsa yog nyias dua li niaj zaus);
• E - ib qho kev lag luam nrog cov npoo sib npaug (hauv qhov no, cov txee muaj qhov tuab me dua, thiab txee yog qhov qub);
• U - channel, cov npoo ntawm cov txee uas tuaj yeem nqes (tsis pub tshaj 10%);
• C - khoom tshwj xeeb.

Ntxhais hmoob channel

Thaum lub sijhawm tsim khoom, ntau qhov ntsuas tau muab rau hauv tus account. Qhov no yog tag nrho qhov ntev ntawm cov khoom, qhov siab ntawm cov channel (qhov taw qhia ntawm sab nrauv ntawm cov khoom),thickness ntawm txee thiab partitions.

Qhov siab tuaj yeem sib txawv ntawm 50-400mm, thiab txee dav tsis tshaj 32-115mm.

Qhov ntev ntawm cov channel tsim tuaj yeem sib txawv. Nyob ntawm qhov ntsuas no, qhov sib txawv ntawm qhov sib txawv thiab tsis yog qhov sib txawv. Raws li GOST, assortment ntawm cov hlau channel tuaj yeem ntsuas qhov ntev ntawm 4-12 meters (feem ntau raws nraim 12). Txawm li cas los xij, qee zaum koj tuaj yeem pom cov khoom nrog qhov ntev ntawm 11.7 meters. Random ntev yuav ua tau yam tsawg kawg yog 3 thiab tsis ntau tshaj 12 meters. Thaum muas ib pawg ntawm cov dov hlau, nws tuaj yeem tsis tsuas yog ntsuas, tab sis kuj tsis yog-dimensional channel, txawm li cas los xij, nws qhov ntau yuav tsum tsis pub tshaj 5% ntawm tag nrho cov khoom ntim khoom.

khoom galvanized

Nrog ntau yam khoom siv hlau dov, cov khoom siv galvanized nyob hauv ib qho chaw tshwj xeeb. Lawv qhov txawv feature yog lub xub ntiag ntawm zinc txheej. Cov txheej no yog siv rau saum npoo thaum lub sij hawm tsim cov khoom thiab feem ntau tiv thaiv.

Zinc txheej tiv thaiv cov qauv hlau los ntawm ya raws thiab tiv thaiv corrosion. Ua tsaug rau qhov no, nws muaj peev xwm ua kom muaj zog ntawm cov khoom thiab nws lub neej kev pab cuam. Xaiv ib txoj kab zinc-coated yog pom zoo nyob rau hauv cov ntaub ntawv uas cov khoom yog tas li raug rau ya raws.

Thaum yuav dov hlau, koj yuav tsum ceev faj txog kev xaivtus neeg muag khoom thiab qhov zoo ntawm cov khoom yuav khoom. Txhua batch yuav tsum tau nrog rau cov ntawv pov thawj zoo rau kev ua raws li GOST. Tsis tas li ntawd, nws yog ib qho tseem ceeb los xyuas kom meej tias cov khoom tsis muaj qhov tsis pom kev, vim qhov no yuav cuam tshuam ncaj qha rau qhov zoo thiab ua haujlwm ntawm cov qauv tiav.