Khoom Taw Qhia

Ductile hlau manhole npog feem ntau yog ua los ntawm cov hlau hlau manhole npog, thiab qhov zoo ntawm no manhole npog muaj qhov teeb meem ntawm spheroidization tus nqi. Feem ntau siv txheej rau kev kho cov castings yog anti-xeb asphalt xim, ntawm chav kawm, qhov saum npoo ntawm cov ductile hlau manhole npog kuj raug kho los ntawm cov tshuaj tsuag los tiv thaiv xeb asphalt xim. Ductile hlau manhole npog muaj ib qho txiaj ntsig, uas yog, vim muaj lub zog siab thiab zoo tawv ntawm cov hlau hlau, cov hlau hlau manhole npog yog li 30% sib dua li tib hom grey cam khwb cia hlau manhole npog.

Aube ductile hlau, qib QT900-02, muaj lub zog siab thiab hnav tsis kam, nws cov cuab yeej siv dav dav yog siab, feem ntau siv los ua cov log tsheb loj xws li tiv taus cov khoom hnyav, kev sib txhuam thiab qhov cuam tshuam. Ferritic ductile hlau, qib QT400-17, QT400-15, QT450-10, nrog lub zog qis, tab sis cov yam ntxwv siab tawv, feem ntau yog siv los tiv thaiv ntau qhov cuam tshuam thiab kev co, xws li qee qhov tsheb chassis qhov chaw. Cov pa roj carbon nodular hlau, QT500-07, QT600-03, nrog lub zog siab, zoo toughness yam ntxwv, feem ntau yog siv rau hauv kev tsim khoom ntawm qee lub tsheb.

Yog hais tias lub square raug xaiv, vim hais tias cov kab pheeb ces kaum ntawm lub square yog pom tseeb ntev tshaj qhov ntev ntawm txhua sab, xws li ib tug manhole npog yog dov, nws yog yooj yim mus poob rau hauv lub qhov dej raws kab pheeb ces kaum ntawm lub qhov dej, tsim ib tug zais kev phom sij. . Yog tias lub taub hau zoo sib npaug lossis me dua lub hau, lub hau square yuav tsis poob rau hauv qhov dej. Muaj teeb meem ntawm kev siv cov ntaub ntawv thiab txuag ntawm no. Square ductile hlau manhole npog feem ntau yog siv nyob rau hauv cov cheeb tsam nyob deb nroog thiab cov cables, thiaj li tiv thaiv kev nkag ntawm cov kua dej xws li los nag. Cov hauv qab no yog cov lus qhia ntxaws ntxaws txog cov txheej txheem kev teeb tsa ntawm cov khoom siv hlau manhole npog lub thav duab (pwm) tom qab cov cam khwb cia hlau hlau manhole npog yog tsau, ua ntej sau cov khoom siv asphalt, ntxuav lub qhov ua haujlwm ua ntej, thiab tom qab ntawd sib npaug ntawm cov khoom siv. asphalt los ntawm lub tsev hais plaub roj, txhawm rau ua kom cov nplaum nplaum ntawm asphalt thiab cov qauv qub, thaum sau cov asphalt, nws yog ib qho tsim nyog yuav tsum siv cov txheej txheem tamper kom ntseeg tau tias qhov ntom ntom ua tau raws li qhov yuav tsum tau ua. Qhov siab ntawm asphalt muab tub lim yuav tsum ua raws li qhov saum npoo ntawm cov khoom siv hlau cam khwb cia (tuag).

Thaum peb tsav lub manhole npog, peb feem ntau ua lub suab "clanging", uas yog vim hais tias lub manhole npog yog nyob thiab qhov siab yog tshwm sim los ntawm lub suab txawv txav. Nyob rau hauv ntau lub nroog, txoj kev tseem yog tus thawj coj ntawm cov cam khwb cia hlau manhole npog, cuam tshuam los ntawm lub hauv paus ntsiab lus ntawm lub manhole npog nws tus kheej thiab cov txheej txheem filling, ua ke nrog dov ntawm cov tsheb hnyav rau lub sijhawm ntev, feem ntau yuav muaj kev poob qis, zoo. rupture thiab lwm yam kab mob, tsis tsuas yog coj lub suab nrov, tab sis kuj cuam tshuam rau pej xeem txoj kev tsav tsheb thiab tsheb. Tus tshiab los tiv thaiv manhole npog qauv yog dav dua li qhov zoo tib yam manhole npog, lub manhole npog cheeb tsam tau nce, thiab muaj qhov zoo ntawm kev tiv thaiv dab dej, tiv thaiv tub sab, tiv thaiv xoob, tiv thaiv lub suab txawv txav thiab lwm yam.

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Peb yog cov chaw tsim khoom ntawm "Ob-txheej manhole npog ductile hlau qhov chaw", yog tias koj xav tau cov ntaub ntawv ntxiv thov hu rau peb!