I. Cov yam ntxwv ntawm cov khoom
Ua los ntawm cov hlau nplaum (feem ntau QT500-7 qauv), tom qab kev kho tshwj xeeb spheroidizing, cov graphite sab hauv tau muab faib ua cov qauv kheej kheej, txhim kho cov khoom siv zog thiab lub zog. Lub zog tensile Ntau dua los yog sib npaug rau 500MPa, elongation Ntau dua lossis sib npaug li 7%, deb tshaj qhov zoo tib yam cam khwb cia hlau gratings.
Kev kho deg muaj xws li kub -dip galvanizing (txheej thickness Ntau dua los yog sib npaug rau 80μm) lossis epoxy resin txau. Nws dhau qhov ASTM B117 ntsev tshuaj tsuag rau ntau dua lossis sib npaug li 1000 teev, tiv thaiv cov av noo thiab corrosive ib puag ncig, tsim nyog rau cov xwm txheej nyuaj xws li hauv av thiab sab nraum zoov.
High material density and hardness, with no vulnerable parts, it is not prone to aging or breakage, and its service life can reach 30-50 years or more, with some high-quality products exceeding 100 years, requiring no frequent replacement or maintenance.
II. Anti-sinking tsim
Ua haujlwm lub qhov (socket) - hom qauv tsim, qhov kawg qis yog ncaj qha kos rau hauv phab ntsa sab hauv ntawm lub qhov manhole, tsis yog zaum ncaj qha rau nws. Qhov no disperses feem ntau ntawm cov khoom tsim los ntawm lub tsheb khiav mus rau ib puag ncig txoj kev qauv, tiv thaiv lub manhole thiab ib puag ncig asphalt los ntawm kev daws teeb meem los yog bulging, yog li daws qhov teeb meem ntawm nws qhov chaw.
Ua ke nrog qhov dav -ntug manhole thav duab tsim, cov hniav nyiaj hniav kub tsim ib chav ua tiav nrog txoj kev nto, nyob ib txwm nrog txoj kev. Qhov no ua kom muaj kev txuas ntxiv ntawm cov hniav nyiaj hniav kub thiab qhov chaw nyob ib puag ncig, tiv thaiv cov pob thaum lub tsheb hla thiab txhim kho kev tsav tsheb.
Tsis muaj pob khawm sab nraud lossis rov ua dua cov txheej txheem tav, thiab nruab nrog peb - taw tes caij nplooj ntoos hlav, lub manhole thav duab hloov chaw raug txwv, txo cov kev cuam tshuam sab nraud thaum lub tsheb khiav thiab tiv thaiv cov hniav nyiaj hniav kub los ntawm kev dhia lossis hloov, thaum tseem tiv thaiv kev tawg thiab tawg ntawm txoj kev nyob ib puag ncig.
Ib qho inverted trapezoidal neoprene strip yog embedded ntawm qhov sib txuas ntawm cov hniav nyiaj hniav kub thiab lub hauv paus manhole, ruaj khov thiab tiv thaiv nws los ntawm kev poob. Qhov no tseem muab kev sib khi, txo suab nrov, thiab kev vibration damping, txo cov suab nrov txawv txav ntawm lub tsheb tsheb thiab tiv thaiv cov khib nyiab thiab dej nag los ntawm kev nkag mus rau hauv kev sib koom ua ke thiab ua rau cov qauv puas.
III. Lub luag haujlwm tseem ceeb
Kev thauj khoom zoo heev-cov kabmob muaj peev xwm, ntsib EN124 tus qauv F900 qib (90-tuj thauj khoom-cov kabmob muaj peev xwm), yooj yim tiv taus kev sib tsoo los ntawm cov tsheb hnyav, haum rau cov xwm txheej hnyav xws li kev loj thiab txoj kev loj. Nyob rau hauv cov xwm txheej overloads, nws tsuas yog deforms tsis tawg, tiv thaiv ya cov khib nyiab los ntawm kev raug mob.
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Ua ke cov kua dej thiab lim dej, nrog rau kev tswj xyuas qhov qhib ntawm 20% -30%. Siv lub V-zoo li tus ntws channel tsim, kev ua haujlwm ntawm cov kua dej tau nce 40% thaum los nag hnyav. Ib txhij, cov qauv mesh zoo cuam tshuam cov khoom loj xws li cov nplooj poob thiab cov av, tiv thaiv cov kav dej phwj tuaj.
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Kev tiv thaiv zoo tshaj -kev ua tub sab nyiag, ua haujlwm siab - lub zog txuas txuas lossis xeb- tiv thaiv tooj liab xauv, ua ke nrog kev tsim qauv tsim. Tsis tas li ntawd, qhov qis rov ua dua tus nqi ntawm cov khoom siv hlau ua kom txo tau txoj kev pheej hmoo ntawm tub sab nyiag, nrog qee cov khoom uas qhia txog kev ua tub sab tub nyiag txhua xyoo txo qis dua 95%.
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Qhov saum npoo muaj cov qauv tiv thaiv- plam kom muaj kev sib txhuam thiab tiv thaiv cov neeg taug kev thiab tsheb kom tsis txhob ntog hauv huab cua los nag lossis daus. Muaj ntau qhov ntau thiab tsawg (xws li, 450 × 750, 400 × 600), thiab square, round, thiab irregular shapes tuaj yeem kho kom haum rau qhov sib txawv manhole qhib thiab daim ntawv thov scenarios.
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IV. Installation thiab Maintenance nta
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V. Siv tau Scenarios
Municipal Engineering:
Cov dej nag, cov dej phwj tuaj, thiab cov plua plav / xuab zeb hauv nroog loj thiab theem nrab txoj kev, rov qab txoj kev thiab txoj kev, squares, chaw ua si, thiab lwm yam, yog cov tseem ceeb ntawm cov kav dej hauv nroog.
Hnyav-Lub luag hauj lwm Scenarios:
Cov cheeb tsam uas nquag siv tsheb loj xws li kev loj, chaw nres tsheb, chaw nres nkoj, chaw nres nkoj, thiab mines, muaj peev xwm tiv taus cov khoom hnyav xws li forklift log loads thiab cov khoom siv railcar hnyav.
Public thiab Industrial Scenarios:
Corrosive thiab hnyav- cov xwm txheej xws li cov chaw tsim khoom lag luam, cov chaw kho dej phwj tuaj, thiab cov chaw ua haujlwm tshuaj lom neeg, thiab tseem tsim nyog rau kev tshuaj xyuas qhov dej hauv kev lag luam xws li dej, hluav taws xob, thiab kev sib txuas lus.
Cim npe nrov: en124 ductile hlau tiv thaiv -kev sib haum xeeb grating, Tuam Tshoj en124 hlau hlau tiv thaiv-kev sib haum xeeb grating manufacturers, lwm tus neeg