Tam sim no lub npog npog zoo yog siv dav, uas ua rau peb muaj kev pab ntau thiab yooj yim. Hom manhole npog no txawv ntawm txoj kev tsim cov cam khwb cia hlau manhole npog. Nws yog nias los ntawm pwm. Tej zaum koj yuav tsis paub zoo txog cov pwm. Yuav kom qhia rau koj paub ntau ntxiv txog kev tsim cov txheej txheem ntawm manhole npog, hnub no peb yuav qhia cov ntaub ntawv yooj yim txog pwm tsim qauv ntawm Wuhan composite manhole npog.
1. Yas ib feem nto. Raws li cov khoom tsim tuaj yeem npog, cov qauv saum npoo pom ntawm cov khoom yas yuav tsum raug tsim los ntawm kev sib cuag nrog pwm ntawm cov khoom sib xyaw zoo.
Yog tias ua tau, polished nto ntawm cov yas yuav tsum tsis txhob hu rau pwm nto. Nws yog ib yam li rooj plaub uas tus poj niam pwm yog siv los tsim lub dab da dej thiab ntxhua khaub ncaws.
2. Kho kom zoo nkauj. Yog tias siv cov tshuab kab rov tav saws txiav tawm ntawm ntug clamping ntawm cov yas, yuav tsum muaj tsawg kawg yog 6-8 hli pub rau hauv qhov siab qhov siab. Cov nyiaj pub dawb yuav tsum tau ua rau lwm yam kev ua tiav, xws li kev sib tsoo, laser txiav lossis dav hlau txiav. Qhov sib txawv ntawm qhov sib txawv ntawm cov riam ntug tuag txiav yog me me, thiab qhov dav ntawm qhov xuas nrig ntaus tuag thaum lub sij hawm trimming kuj yog me me, uas yuav tsum tau muab sau tseg.
3. Geometric tsim. Qhov kev ruaj ntseg ntawm qhov ntev thiab qhov zoo ntawm qhov chaw yuav tsum tau txiav txim siab zoo thaum tsim cov pwm ntawm kev sib xyaw zoo npog. Yog tias cov khoom tsim thiab qhov kev ruaj ntseg yuav tsum tau siv cov poj niam pwm (pom poj niam), tab sis cov khoom uas muaj qhov siab gloss yuav tsum tau siv cov txiv neej pwm (txiv neej pwm). Nyob rau hauv txoj kev no, cov khoom yas xaj tog yuav coj ob lub ntsiab lus no rau hauv tus account comprehensively, thiaj li hais tias cov khoom yuav raug tsim nyob rau hauv tej yam kev mob zoo. Kev paub dhau los tau ua pov thawj tias cov qauv tsim uas tsis ua raws li kev ua haujlwm tiag tiag feem ntau ua tsis tiav.
4. Dimensional stability. Nyob rau hauv cov txheej txheem molding, qhov ruaj khov ntawm qhov chaw ntawm qhov chaw ntawm cov yas thiab cov pwm ntawm cov khoom sib xyaw zoo yog zoo dua li ntawm qhov tawm hauv pwm.
Yog tias cov khoom tuab yuav tsum tau hloov pauv vim qhov xav tau ntawm cov khoom nruj rau yav tom ntej, nws yuav ua rau kev hloov pauv ntawm txiv neej pwm mus rau poj niam pwm. Qhov ntev ntev ntawm cov khoom yas yuav tsum tsis pub tsawg dua 10 feem pua ntawm cov shrinkage.