Kev tsim cov tsev thav duab tau txais txiaj ntsig: lawv kuj pheej yig thiab xis nyob. Nyob rau hauv classic tej yaam num ntawm lub tsev thiab cov qauv ua los ntawm pob zeb, cib thiab lwm yam ntaub ntawv, truss systems yog ua los ntawm cov ntoo, yog li qhov teeb meem ntawm txhim khu kev qha kev twb kev txuas ntawm beams, ntoo los yog lwm yam ntoo ntsiab yog tas li cuam tshuam. Tsis ntev los no, tus ntsia thawv phaj tau siv dav - ib qho tshiab ntawm cov fasteners, uas tau ua tiav cov ntsia hlau, dowels thiab screws.
Tsim thiab cov khoom siv tsim khoom
Los ntawm lub npe nws yog qhov tseeb tias tus ntsia thawv phaj hauv nws tus qauv tsim yog ib qho sawb ntawm cov hlau nrog ib qho analogue ntawm cov rau tes. Nws thickness yog los ntawm 1 mus rau 2 hli, qhov ntev sib txawv ntawm 40 mus rau 200 mm nyob rau hauv dav, thiab qhov ntev yuav ua tau ib yam. Cov tuam ntxhab sib txawv muaj lawv tus kheej cov qauv loj. Feem ntau, ntsia thawv phaj yog tsim nrog ib kauj ruam ntev ntawm 25 mm.
Cov khoom pib rau kev tsim khoom yog lub zog siab alloyed lossis galvanized steel ntawv. Hauv kev tsim khoom, nws raug txiav rau hauv daim hlau ntawm qhov yuav tsum tau ua, thiab tom qab ntawd nyias nyias protrusions txog li 8 hli ntev yog nyem tawm ntawm lub xovxwm tshwj xeeb. Lawv ua lub luag haujlwm ntawm cov ntsia hlau, khov kho nkag mus rau hauv cov qauv ntoo.
Scope of application
Txhua lub tsev ntoo uas sib cuam tshuam yuav tsum muaj tag nrho rigidity kom muaj peev xwm thauj khoom thiab tiv thaiv kev deformation ntawm tag nrho cov qauv. Fasteners uas zoo tshaj plaws rau txoj hauj lwm no yog cov ntsia hlau phaj. Lawv tau siv nyob rau hauv thaj chaw, pej xeem, kev tsim kho kev lag luam thaum lub sij hawm kev tsim kho ntawm thav duab ntoo thiab kev teeb tsa truss systems.
Uss
Kev tsim cov phab ntsa vaj huam sib luag, ntoo trusses lossis arches yog nqa tawm hauv kev cob qhia ntau lawm. Cov yam ntxwv ntawm cov khoom yog tsau nyob rau hauv conductors los yog lwm yam khoom siv thiab txuas nrog ib tug ntsia thawv phaj siv ib tug xovxwm. Txoj kev sib txuas no yog qhov zoo tshaj plaws, tab sis nws tsis yog ib txwm ua tau los siv nws.
Nyob ntawm qhov chaw tsim kho, kev siv cov ntsia hlau ntsia hlau siv cov xovxwm tsis tuaj yeem ua tau. Lawv tsuas yog hammered thiab tib lub sij hawm lawv saib xyuas qhov sib xws ntawm kev nkag mus rau hauv tsob ntoo.
Key nta
Qhov nrov ntawm cov ntsia hlau phaj yog vim lawv qhov zoo dua lwm hom fasteners:
- muaj peev xwm txuas cov ntsiab lus hauv tib lub dav hlau yam tsis muaj qhov tseem ceeb ntawm qhov chaw;
- qhov hnyav tuag tsawg, uas txo qhov hnyav tag nrho ntawm cov qauv;
- kev siv cov ntsia hlau daim hlau tso cai rau koj los txhim kho cov txheej txheem nyuaj hauv theem yam tsis tas siv cov cuab yeej siv hnyav;
- txo tag nrho tus nqi ntawm cov khoom tsim (tus nqi yog siab heev, tab sis cov fasteners hauv nqe lus nug kuj pheej yig);
- kev siv lub phaj ua kom lub zog thiab lub zog ntawm cov pob qij txha hauv cov qauv sib xyaw;
- kev txhim kho ntawm tus ntsia thawv phaj yog qhov yooj yim heev thiab tsis tas yuav muaj kev paub tshwj xeeb.
Kev tsis txaus
hom fastener no tsis yog tsis muaj nws qhov tsis zoo, ntawm qhov tseem ceeb tshaj plaws yog cov hauv qab no:
- tsis tshua muaj zog thiab tawv hauv qab khoov loads ntawm kev sib tshuam;
- kev teeb tsa ntawm cov ntsia hlau daim hlau tsis tas yuav muab qhov siab tshaj plaws thiab lub zog ntawm kev sib txuas;
- kom tau txais cov qauv zoo nrog qhov tsim qhov tseeb, qhov chaw uas muaj qhov sib luag zoo yog xav tau.
Type by tooth arrangement
Cov neeg tsim khoom feem ntau sim txo tus nqi ntawm cov khoom siv hauv tsev uas lawv tsim. Ib txoj hauv kev ua qhov no yog ua kom yooj yim rau kev tsim thiab tsim tshuab. Nyob rau hauv no hais txog, feem ntau ntawm cov ntsia hlau daim hlau yog cov yooj yim thiab pheej yig tshaj hom nrog unidirectional hniav. Tab sis muaj lwm yam kev xaiv uas siv rau hauv cov qauv tseem ceeb: nrog cov hniav sib txuas hauv cov kab uas nyob ib sab thiab nrog cov hniav nyob ntawm kaum ntawm 45 degrees raulongitudinal axis ntawm lub phaj. Cov kev xaiv no nyuaj rau tsim, thiab yog li ntawd tus nqi ntawm cov khoom siv hauv tsev rau cov hom fasteners yog me ntsis siab dua.
Kev faib tawm thiab cov chaw tsim khoom
Nyob hauv lub tebchaws LNG, kev faib tawm ntawm MPZ (hlau-hlau daim hlau - lub npe ntawm cov ntsia hlau phaj raws li GOST) yog saws los ntawm tuab: MPZ-1.0, MPZ-1.2 thiab MPZ-2.0 yog ua nrog tuab. ntawm 1.0, 1.2 thiab 2.0 mm, ntsig txog.
Nyob rau Tebchaws Europe sab hnub poob, tus qauv nrov yog ob-txoj kev laib-tus ntsia thawv tus yuam sij los ntawm cov tuam txhab hauv Sweden, Lub Tebchaws Yelemees, Poland thiab Finland. Hauv Hungary thiab cov tebchaws nyob sib ze, Arpad ntsia thawv phaj yog nrov, uas sawv tawm rau lawv lub zog siab. Tus nqi ntawm ib phaj, nyob ntawm seb hom, qhov loj me thiab cov chaw tsim khoom, thaj tsam ntawm 10 txog 120 rubles.
