Channel - yog dab tsi? Hom, kev piav qhia thiab thaj tsam ntawm cov channel

Cov txheej txheem:

Channel - yog dab tsi? Hom, kev piav qhia thiab thaj tsam ntawm cov channel
Channel - yog dab tsi? Hom, kev piav qhia thiab thaj tsam ntawm cov channel

Video: Channel - yog dab tsi? Hom, kev piav qhia thiab thaj tsam ntawm cov channel

Video: Channel - yog dab tsi? Hom, kev piav qhia thiab thaj tsam ntawm cov channel
Video: Qhia Txog Npe Ntawm Daim Movie 2024, Kaum ib hlis
Anonim

Channel yog ib yam khoom uas xav tau los ntawm cov hlau niaj hnub no. Nws lub ntsiab qhov txawv yog qhov U-shaped seem. Lub thickness ntawm cov khoom tiav tuaj yeem yog los ntawm 0.4 mus rau 1.5 cm, thiab qhov siab ntawm cov phab ntsa yog 5-40 cm Cov khoom nyias nyias yog tsim los ntawm kev ua cov sawb hloov tau siv cov mills tshwj xeeb profile. Cov kab uas ua los ntawm cov hlau tsis yog hlau yog tau tom qab ua tiav cov khoom ua haujlwm los ntawm kev nias thiab extrusion, thiab cov hlau raws tau txais los ntawm kev siv tshuab kub dov ntawm cov hlau ua haujlwm ntawm ntu mills. Txhua yam ntawm cov khoom siv no tau siv dav hauv kev tsim kho kev lag luam.

channel yog
channel yog

Tshuaj ntsuab channel

Steel channel (GOST 8240-97) muaj qhov sib txawv ntawm cov lus pom zoo, uas muaj nyob rau hauv qhov tshwj xeeb U-shaped seem. Cov khoom siv hlau zoo li no tau txais los ntawm kub dov ntawm qhov khoob lossis siv cov tshuab txias deformation ntawm cov ntawv hlau. Nws yog tsim nyob rau hauv daim ntawv ntawm 3ps / sp5 steel tuav thiab 09g2s alloys. Raws, nyob ntawm cov duab, muab faib ua ob hom:

  • parallel - lub ntsej muag sab hauv yog nruj nruj rau ib leeg;
  • tapered - lub ntsej muag sab hauv yog muab tso nrog txoj kab nqes.
  • channel ntawm ntau yam duab: U-puab, U-puab
    channel ntawm ntau yam duab: U-puab, U-puab

Scope of application

Raws li tau hais los saum toj no, channel yog cov khoom siv nrov heev, tsis muaj lub tsev yuav ua tau. Nws yog siv nyob rau hauv kev tsim kho vaj tse thiab vaj tse rau vaj tse thiab kev lag luam, tsev ntiav thiab lub teb chaws, laj kab thiab laj kab, txuas hniav, hlau qauv thiab ua liaj ua teb.

Ib qho ntawm ntau hom hlau yog qhov kub-dov channel, tus ntoo khaub lig uas yog U-shaped. Nws yog tsim nyob rau hauv daim ntawv ntawm ob lub txee, uas yog thaum uas tig mus rau ib leeg, thiab ib tug txuas phab ntsa. Cov channel no tau muab faib ua 3 hom:

  • nrog ntau qhov ntev tsis ntsuas;
  • nrog ntau qhov ntsuas ntev;
  • ntsuas qhov ntev.

Raws li qhov ntev ntawm cov channel, lawv tuaj yeem tsis yog tus qauv, vim txhua yam nyob ntawm qhov xav tau thiab cov kev xav tau ntawm cov neeg siv khoom. Lub ntsej muag sab hauv yuav tsum muaj txoj kab nqes tsis tshaj 10%. Kub dov channel yog ntau yam khoom siv rau kev lag luam teeb thiab hnyav.

Ntau yam

Hnub no, muaj lwm hom kub-kuav los tiag channel, piv txwv li, ib qho tshwj xeeb rau lub tsheb tsim kev lag luam thiab tib yam rau kev lag luam tsheb. Bent steel channel yog tsim los ntawm cov hlau tsis tshua muaj., kub-kuav los tiag, txias-kuav los tiag thiab carbon steel ntawm dabtsi yog khoov tshuab. Nws tau muab faib ua ob hom:tsis sib npaug thiab sib npaug. Xws li cov hlau dov yog siv nyob rau hauv rooj plaub uas loj dabtsi yog khoov loads yuav muab tso rau ntawm tus qauv nyob rau hauv kev tsim kho.

channel qhov ntev: thickness, ntev thiab dav
channel qhov ntev: thickness, ntev thiab dav

Rau qhov tsim cov hlau tsis tshua muaj hlau, (raws li lub npe implies) cov hlau tsis tshua muaj hlau yog siv. Nws yog tus cwj pwm los ntawm kev ua haujlwm siab rau ntau yam kev thauj khoom dynamic thiab kev hloov pauv loj hauv huab cua kub.

Channel: dimensions

Cov lus hauv qab no muaj cov yam ntxwv ntawm U-qib channel (lub ntsej muag nyob nrog txoj kab nqes).

channel gost
channel gost

Cov lus hauv qab no muaj cov yam ntxwv ntawm kub dov P-qib sib luag-edged raws.

channel dimensions rooj
channel dimensions rooj

Symbol:

  • t - txee thickness;
  • b yog nws qhov dav;
  • h - cov khoom tiav qhov siab;
  • s – phab ntsa thickness.

Yog li, cov channel steel yog cov khoom tsim los ua cov qauv hauv kev tsim kho kom ruaj khov. Xws li cov hlau dov siv rau tag nrho cov axial load thiab sib npaug faib nws saum npoo. Qhov no ua kom lub siab nruj thiab lub zog ntawm cov qauv hlau nyob rau hauv khoov loads.

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