Teeb meem nrog UPVC kav dej

Txawm hais tias qhov zoo ntawm cov txhav PVC ua si kav dej yog qhov tseem ceeb heev, tseem muaj qee qhov teeb meem lub hom phiaj hauv kev tsim qauv thiab siv:

1. Kev ntsuas kub kub

UPVC cov yeeb nkab muaj cov cua kub tsis zoo, thiab nws lub zog tensile txo qis dua 60 ° C (siv rau cov dej phwj hauv tsev uas cov teeb meem txuas ntxiv mus tsis tshaj 40 ° C thiab instantaneous paug kub tsis tshaj 80 ° C). Yog li, qhov qauv tsim thiab siv yuav tsum nyob deb ntawm cov khoom siv cua sov, xws li qhov kev ncua deb ntawm lub qhov cub nqaj ntug yog ntau dua lossis sib npaug li 400mm, thiab qhov kev ncua deb ntawm cov dej kub ntawm cov yeeb nkab yog ntau dua lossis sib npaug li 200 hli. Nyob rau tib lub sijhawm, cov dej kub yuav tsum tau rwb thaiv tsev thiab yuav tsum tsis txhob hla dhau ntawm flue thiab foob pob hluav taws.

Qhov cuam tshuam lub zog ntawm cov xeb PVC kua dej ntau yog txo qhov ntsuas kub tsawg. Yog li ntawd, nyob rau hauv kev hloov pauv ntawm cov khoom siv nrog cua txias, cov kav hlau nrum tuaj yeem txiav txim siab es tsis txhob siv cov tawv polyvinyl chloride cov kav dej txhawm rau kom ntseeg tau tias muaj kev nyab xeeb.

Vim yog qhov ntsuas kub ntawm huab cua sov thiab loj nthuav dav coefficient, nthuav pob qij txha yuav tsum nyob rau txhua txheej ntawm riser cov kav dej thiab cov kav dej ntev dua. Yog li, lwm txoj haujlwm tshaj lij yuav tsum xav txog qhov tsis zoo ntawm UPVC cov kav dej. Thaum muab tso rau thaum uas tig mus rau lwm cov kav dej, cov yeeb nkab yas yuav tsum nyob ntawm ib sab. Thaum nteg crosswise, cov yeeb nkab yas yuav tsum tso rau hauv qab thiab staggered, thiab hlau rooj plaub yuav tsum raug txiav txim siab rau kev tiv thaiv. Tsis tas li ntawd, txoj haujlwm qhov twg tus riser kis tau los ntawm lub ru tsev hauv pem teb yuav tsum siv cov chaw txhawb nqa, thiab yuav tsum tau kho lub hnab riam uas yoog tau.

2. Txawv nruj cawv

UPVC yeeb nkab

UPVC yeeb nkab

Yuav tsum muaj kev tuav ruaj khov kho rau txhua txheej ntawm tus riser. Lub nruas tsau tsis tuaj yeem tsuas yog tswj tau qhov kev nthuav dav ntawm lub raj xa dej, tab sis kuj tseem qhia qhov hnyav ntawm tus riser, thiab tseem tiv thaiv lub taub hau txuas txuas ntawm tus riser thiab tawm cov kab rov tav ntawm cov yeeb yam dhau los ua kom muaj kev ntxhov siab, ua rau cov yeeb nkab tawg thiab to, thiab tib lub sijhawm, kho cov kev ntsuas xws li pob tw los yog lub txee dai khaub ncaws yuav tsum muab nruab rau hauv qab ntawm cov riser.

Hauv kev tsim kho sab nraum zoov, UPVC kav dej tshwj xeeb yog kev puas tsuaj los ntawm kev puas tsuaj. Thaum cov UPVC thiab cov xa hluav taws xob sab nraum zoov sib txuas sib txuas sib tshooj sib txuam, phau ntawv thiab cov cuab yeej siv tau txaus los ua kom sib txawv qib ntawm kev puas tsuaj rau nws, thiab txawm tias tsoo lossis tsoo kom ua rau lub raj xa dej txhaws. Thaum lub raj xa dej rov qab, UPVC cov kav dej feem ntau puas lawm vim tias muaj feem xyuam rau kev hla ntawm cov kav dej los yog cov xaim los ntawm cov khoom loj. Yog li no, qhov faus UPVC yeeb nkab yuav tsum tau hais tias tom qab lub hauv paus yog tamped, muaj 100mm nyob rau hauv cov yeeb nkab thiab 300mm backfill xuab zeb saum cov yeeb nkab, thiab tag nrho faus qhov tob tsis yog tsawg dua 900mm.

3. Lub tsev tiv thaiv hluav taws

Tuam Tshoj' kev tshawb fawb ntawm PVC yas nplaim hluav taws xob tshuab thev naus laus zis feem ntau muaj ib qho kev nyiam ib-sab ib txoj kev txhim kho cov pa oxygen thiab tsis quav ntsej cov kev tshawb fawb txog kev ua pa luam yeeb. Txheeb cais qhia tau tias 79% ntawm hluav taws yog neeg tuag taus los ntawm cov pa taws. Qee cov kav dej UPVC muaj cov pa oxygen tshaj li 50%, tab sis lawv tshaj tawm thaum haus luam yeeb ntau, thiab qhov kub tshaj ntawm Vicat tsuas yog li ntawm 70 ° C thiab 90 ° C. Yog li no, txawm hais tias UPVC cov yeeb nkab tsis yooj yim rau hlawv, nws yooj yim rau muag thiab deform, thiab cov pa luam yeeb tsis muaj zog heev. Ntawm ib sab, cov pa taws ua kom muaj pa taws. Qhov siab dua cua ceev ntawm lub qhov dej tso dej tawm los yog lub raj xa dej tawm dhau lub ru tsev, qhov hluav taws kub ceev dua yuav kis tau. Yog li, txawm hais tias UPVC cov kav dej yuav siv tau rau hauv cov tsev siab tau ua rau muaj kev sib cav, thiab qhov tseem ceeb ntawm kev sib cav yog nws cov khoom tiv thaiv hluav taws.

UPVC cov kav dej tau siv dav hauv cov tsev siab, tab sis cov teeb meem kev tiv thaiv hluav taws tau tsis tau them nyiaj txaus, thiab tsis muaj kev xav txog kev teeb tsa ntawm UPVC cov kav dej tau muab tso rau thaum lub sijhawm tiv thaiv hluav taws tshwj xeeb thiab txais. Vim tias tam sim no" Code rau Kev Tsim Vaj Tse Kev Tiv Thaiv Hluav Taws Kub" GB 50016-2014," Rigid PVC Kav rau Lub Tsev Kav Dej" GB / T5836. 1-92 thiab" Cov Lus Qhia Tshwj Xeeb rau Cov Khoom Siv Ua Rigid Polyvinyl Chloride Yeeb Nkab Engineering" CJJ-96 thiab lwm yam kev qhia tshwj xeeb tsis pom tseeb txog kev siv cov raj xa khoom UPVC, ua qhov teeb meem no" tawm ntawm kev txiav txim" ;. Thaum hu xov tooj rau kev tshaj tawm txog cov ntawv sau hauv tebchaws thiab cov cai hais txog, qee qhov kev xav tau tso rau cov npoj yaig' siv: (1) Los nag, dej phwj tuaj yeem, thiab lub tshuab nqus tsev yuav tsum tau nruab rau sab phab ntsa sab nraud ntawm lub tsev kom ntau li ntau tau. (2) Thaum los nag, dej phwj tuaj thiab cua tshuab tuaj rau hauv lub tsev, lawv yuav tsum tau nruab rau hauv lub raj xa dej kom zoo, lossis tiv thaiv cov khoom siv uas tsis txuas nrog xws li cib thiab pob zeb thaiv. (3) Cov ceg kav dej uas tso rau hauv cov kav xa dej yuav yog cov kav xa dej hlau, lossis kev tiv thaiv hluav taws nruj yuav tsum tau coj rau cov ceg kav dej, xws li cov kav hlau txuas thiab cov kav dej tua hluav taws. (4) Cov khoom lag luam hlau yuav tsum tau siv ntau li ntau tau los ua cov khoom siv nqus dej.

Txuas ntxiv. UPVC cov kav dej xa dej tseem muaj teeb meem xws li standpipe lub zog hluav taws xob, suab nrov kom txo qis thiab tiv thaiv kom tsis txhob ua hws, txhua qhov txwv tsis pub muaj kev txhawb nqa thiab siv cov UPVC cov kav dej muaj nyob rau qee yam.