Qhob yeeb nkab: siab thiab uas tsis yog-siab

Qhob kav, txawm muaj nyob rau hauv kev ua lag luam ntawm steel khoom thiab polymers, tsis tau ceased mus yuav nrov. Lawv yuav tsum siv thaum lub sij hawm installation kev loj. Lawv yog cov tau nyiaj mus dhau hnyav loads.

kheej ntawm daim ntawv thov

Tam qhob kav muaj ntau nyob rau hauv civil engineering. Feem ntau cov feem ntau lawv yog siv thaum lub sij hawm installation ntawm lub taub dej khawb tso tsheb hlau luam, uas migrate mus rau lub industrial thiab domestic pov tseg. Muab hais tias xws li hlab muaj ib tug txiav txim txoj kab uas hla, lawv yog siv lug rau mounting lub ntsiab lolus. Lawv yog cov tseem ceeb nyob rau hauv lub lwm cov cua daj cua dub dej systems. Tej kav tej zaum yuav muaj ib tug txawv profile, uas tso cai rau lawv siv rau installation ntawm ntau yam designs ntawm lub hom yees, cov me nyuam yaus thiab tshaj.

Hom w / w yeeb nkab

Tam qhob kav cov dej num raws li cov kev. Yog li, lawv yuav pub dawb-txaus. Cov khoom uas yog siv rau cov uas thauj cov kua los ntawm lub ntiajteb txawj nqus. Lawv yuav tsis pub ua ntaub ntawv thov nyob rau hauv tej yam kev mob uas muab ib tug tseem ceeb siab kua. Txawm li cas los, xws hlab yuav perceive siab txhua yam loads thiab kuj muaj zoo lub dag lub zog yam ntxwv.

Qhov thib ob kev faib w / w hlab - siab khoom siv thaum lub sij hawm installation kev, uas khiav lag luam nyob rau hauv siab loads nyob rau hauv daim ntawv ntawm nrog siab. Qhov no ntau yam yog yam khoom ua los ntawm tshwj xeeb technology, uas muab rau kev siv ntawm cov molding, uas pab txoj kev zoo cov yam ntxwv. Siab qhob kav muaj ib tug loj phab ntsa thickness, uas tej zaum kuj nce mus txog 10% nyob rau hauv relation mus rau lub puab inch.

Tseem muaj tshwj xeeb lub hom phiaj hlab uas nws txoj kab uas hla tej zaum nce mus txog 2 m nyob rau hauv ib tug ntev ntawm 5 m. Tej cov khoom uas tshwj xeeb check. Raws li rau siab kav, lawv yuav muaj ib tug ntawm plaub hloov ntawm lub siab (5-20 atmospheres), lawv yog siv rau kua uas tsis txawv txhoj puab heev ib puag ncig. Nyob rau hauv zus tau tej cov khoom tshwj xeeb tshaj yog ib qho, txoj kab uas hla uas yog nyob rau hauv 40-160 cm.

Qhob kav cov dej num txawm nyob rau hauv lub siab tshaj plaws qhov tob ntawm pw. Muaj 3 pawg, txhua tus uas assumes ib tug deb ntawm tus nto tsis pub dhau lub 2, 4 thiab 6 m.

Socketed qhob kav

Xws li ib tug raj muaj hauv daim ntawv ntawm cov tshuaj yas los yog cam khwb cia hlau phwj. Kom pairing zoo xws li cov airtight cov ntsaws ruaj ruaj yuav tsum tau siv. Khoom xws li cov flared nyuam qhuav nteg, thiab nws ua rau lawv muaj ntau heev. Cov kab uas hla ntawm cov pob qij txha ntau tshaj qhov yooj yim txoj kab uas hla. Tej khoom no yuav tsum ob leeg rau siab thiab dawb-txaus.

Npav ntawm qhob khoom

Nyob rau hauv thiaj li yuav to taub li cas cov khoom ua ntej koj - reinforced uas tsis yog-siab yeeb nkab flare los yog lwm yam, nws yog tsim nyog los nkag siab txog cov labeling. Yog li, tus thawj cov nuj nqis uas yuav pom nyob rau hauv uas tsis yog-siab khoom, txawm peem rau nrog ib lub tswb yuav qhia tau qhov ntau ntawm cov internal ntoo khaub lig-sectional cov ntaub ntawv teev tseg rau hauv centimeters. Whereas nyob rau hauv lub thib ob thaum lawv tseem muaj peev xwm to taub li cas qhov ntev ntawm cov yeeb nkab, nws yog, incidentally, yog denoted nyob rau hauv decimeters. Cov yav tas daim duab - ib tug load-tau cov kabmob muaj peev xwm, uas cov ntsiab lus rau ib tug siv tau qhov chaw nyob rau mounting tob.

Yog hais tias cov yeeb nkab Culvert reinforced yuav siv tau thaum pw lub siab-hom system, ces nws yuav alphabetic tsiaj TN. Nyob rau hauv lub xub ntiag ntawm lub dab tshos rau cov yeeb nkab, ib los yog docking chaw nres nkoj rau nws, koj yuav saib tau lub cim tus kab mob TB, TP, TS, ntsig txog. Tab sis, thaum lub sawv leeg cov khoom tej zaum yuav muaj xws li cov nram qab no npav: HF, DFT, TBFP, RAU, TE thiab lwm tus neeg.

Pros w / w khoom

Tam qhob yeeb nkab pressureless los yog siab muaj ib tug zoo heev, cov ua ntej uas yuav siab zog thiab kev cia siab ntawm cov khoom. Cov qualities yog vim qhov tshwj xeeb ntau lawm tshuab. Hais tias centrifugal casting ua tsawg check khoom. Thaum lub sij hawm siv thiab ua thiab siv ntau nris-siab. Ib qho ntxiv ntxiv w / w ntawm cov kav dej protrude ib tug me me nqi, uas yuav tsum tau piav qhia tsis raws li high school cov nqi nyob rau hauv qhuav; thiab muaj peev xwm mus yauv mus kub hloov. Tsis tas li ntawd, tus menyuam yuav tsum ua ntawm ntau ntau yam kub. Lawv muaj cai siv nyob rau hauv hnyav ib puag ncig tej yam kev mob. Qhob tsis tau cuam tshuam los ntawm corrosion thiab rot, uas ua rau tau txais kev pab xaiv nws ntau dua steel. Cov kev pab cuam ntawm cov kws txawj faib dielectric zog ntawm cov khoom, nws yuav pab tau tshem tawm stray currents. Pab tej khoom ntau tshaj li ib nrab ntawm ib xyoo pua.

Cons w / w yeeb nkab

Ferro-pob zeb ua dawb-flow kav thiab siab thiab muaj ib co downsides. Tej zaum nws yog tsim nyog los siv tshwj xeeb cov khoom rau los ua ke, ua qhov kev kawm ntawm kev ua hauj lwm kim kim. Tsis tas li ntawd, rau tus zaj ntawm kua nyob rau hauv tej rooj plaub muaj ib tug xav los ntub cov hauv nplaim kav nrog tshwj xeeb tsa, uas yuav ntxiv zog cov nqi.

GOST 6482-88

Standards siv regulates GOST: qhob kav rau nws yuav tsum tau ua raws li nrog rau cov yam ntxwv ntawm cov dej kuj, tshaj tej ntawm, lawv yuav tsum tau yauv nrog hydrostatic siab tsis pub dhau 0.05 MPa. Lub pob zeb ua yuav tsum yog resistant rau te. Tsis tas li ntawd, raws li nyob rau hauv cov kav dej yuav tsum hnyav qhob npaj raws li GOST 26633, nws compressive zog yuav tsum tau sib npaug zos rau B25.

Hais tias compression zog yuav raug hloov, tab sis tsis tsim nyog hloov uas ntev tshaj Standard 13015,0. Dej resistant yeeb nkab phab ntsa yuav tsum yoog mus rau cov chav kawm ntawv W4. Dej haum yuav tsum tsis txhob ntau tshaj 6% los ntawm ceeb thawj. Raws li lub reinforcing ncej yuav siv steel A-kuv thiab A-III (GOST 5781).

Nta w / w yeeb nkab

Tag nrho cov zoo specifications w / w yeeb nkab regulates lub hais tias GOST, ua kev reinforced uas tsis yog-siab yeeb nkab yuav tsum tau free ntawm tej kab nrib pleb rau ntawm cov phab ntsa, txwv tsis pub siv cov chaw ua hauj lwm tsis yooj yim sua. Raws li ib qho kev zam rau protrude shrinkage tej kab nrib pleb uas nws dav tsis pub tshaj 0.05 hli. Kuj yuav txhais tau hais tias cov qauv. Yog li, cov hlab uas sau tias tus kab mob TB, PMT, TBP, thiab cov Cu yuav tsum tau pom tau hais thiab xa mus rau lub buyer ua ke nrog lub sealing rings tsim nyob rau hauv lub hauv paus ntawm roj hmab. Zoo yog tseem txiav txim los ntawm cov neeg ntawm npav, qhov no qhia tau hais tias lub chaw tsim tshuaj paus tau kom meej meej raws li cov kev cai sau tawm nyob rau hauv cov qhua. Npav yuav tsum tau ua ntawv thov mus rau lub txheej saum npoo ntawm cov ntsawb, thiab npav yuav tsum yog nyob rau ib kawg ntawm lub raj leeg hom.

Lub diameters ntawm lub pob zeb ua cov kav dej muaj tau hais saum toj no thiab yog heev ntau haiv neeg. Rau installation ntawm ib tug system koj yuav xaiv cov khoom uas cov kev cai tswjhwm tsis. Tsis txhob xav hais tias yog hais tias tus installation yuav tsum tau nqis peev nyob rau hauv lub hnyav khoom, lub kaw lus yuav muaj ntau ntau kim tshaj ib tug uas yog raws li nyob rau hauv ib tug raj ntawm lwm cov ntaub ntawv uas. Tom qab pob zeb ua cov kav dej yuav them rau nws tus kheej ntau tshaj ib tug lub neej, tsis tau kho rau ib ntev lub sij hawm.

reinforced socket kav yooj yim rau tso, uas yog vim li cas lawv yog siv feem ntau, tab sis ua ntej nws tus kheej-los ua ke ntawm lub system yog tsim nyog los tham nrog ib tug tshwj xeeb.