UPVC yeeb nkab kev txhim kho kev cia siab

Lub Yim Hli 1998, Xiamen Kev Tsim Kho Vaj Tse tau tshaj tawm tsab ntawv xav tau txhua txoj kev tsim kho tshiab siv cov kav dej yas rau cov kav xa dej me dua 400mm thiab cov kav dej sab hauv thiab sab nraum zoov, qhia tias cov kav xa yas tau nkag mus rau ntau cov kev siv. Txawm li cas los xij, qhov luv luv ntawm UPVC cov kav dej hauv kev siv tseem tos peb kev tsim khoom nrog lub zog siab, suab nrov, hluav taws kub tsis kam, peev qis, thiab kev siv hluav taws xob tsawg kom hloov kho kom tob thiab dav ntxiv ntawm kev tsim kho kev lag luam niaj hnub no. xav tau. Zoo hmoo, ntau qhov kev tshawb fawb thiab cov chaw tsim khoom sab nraud Suav tau tsim ntau yam khoom tshiab, thiab qee qhov tau nkag mus rau hauv kev ua lag luam. Lawv sawv cev txoj kev txhim kho ntawm UPVC kav dej.

Muaj cov laus yas-hlau ua cov kav dej hauv cov khoom lag luam hauv Suav teb, uas muaj peev xwm tiv taus kub thiab tsis tshua muaj suab nrov. Txawm li cas los xij, vim lawv cov nqi siab thiab cov kav dej me me, lawv tsim nyog rau cov kav dej kub thiab txias hauv qhov kho kom zoo nkauj kawg. Tseem muaj qhov sib-ua tawv tawv thiab kub-tiv taus cov kav dej ntawm cov khw muag khoom hauv Suav teb. Yas-steel txhab yeeb nkab, tab sis tus nqi kuj tseem siab, thiab nws yog qhov tseem tsis tau siv los siv qhov hauv qhov dej ntws; qee chav nyob hauv Suav tau tsim cov yas yas ob txheej, uas tuaj yeem txo cov suab nrov.

Nws tsuas yog ib theem ntawm kev nkag mus rau hauv kev lag luam; Sichuan Hluav Taws Xob Kev Tshawb Fawb Kev Tshawb Fawb Lub Chaw Haujlwm ntawm Lub Tsev Haujlwm Saib Xyuas Kev Ruaj Ntseg tau tsim cov nplaim hluav taws xob PVC cov qauv uas siv cov khoom siv tsis muaj halogen thiab tsis muaj antimony li cov nplaim hluavtaws ua pa luam yeeb tsib xyoos dhau los. Qhov ntsuas pa tau nce txog 51% mus rau 56%. Cov pa luam yeeb tsawg tsawg (qib pa luam yeeb muaj txog li 54%) thiab cov pa luam yeeb muaj qhov me me, tab sis vim muaj ntau yam, cov tshuab tseem tsis tau nkag hauv khw. Qee lub tebchaws thiab thaj chaw tshaj tawm txawv tebchaws. Piv txwv, hauv Nyij Pooj, cov xov tooj ntawm cov kav dej ruaj khov ob txheej txheej tau siv, tab sis lub plhaub ua los ntawm cov asbestos lossis cov nplaim hluavtaws fiber ntxiv tau muab tso rau sab nraud ntawm UPVC cov kav dej, uas zoo heev txhim kho cov hluav taws tiv thaiv cov yam ntxwv. Raws li cov lus ceeb toom, cov raj xa dej los ntawm cov thev naus laus zis tuaj yeem tiv taus qhov kub siab ntawm 800 ° -1010 ° C, thiab yuav tsis tsim hluav taws kub lossis muag lossis deform hauv hluav taws. Nws tuaj yeem siv ntawm qhov siab xav tau hauv cov tsev siab. Cov yas-hlau sib txuas cov kav dej thiab cov yeeb yaj kiab yas-steel txuas cov kav dej tau siv ntev hauv cov tebchaws tsim thiab thaj chaw.

Feem ntau hais lus, Tuam Tshoj txoj haujlwm tso dej hauv nroog tseem muaj txoj haujlwm los ntawm cov kav hlau, cov kav dej, thiab pob zeb sib txuas. Txawm hais tias kev nce qib thiab daim ntawv thov ntawm cov xeb PVC cov kav dej tau ua tiav qee qhov kev ua tiav, lawv tseem nyob hauv theem pib ntawm kev nthuav dav. Nyob rau theem no, tseem tshuav lub qhov sib txawv loj heev piv nrog kev tshaj tawm txawv teb chaws. Tuam Tshoj' s qhov chaw xa dej xa hluav taws xob tsawg dua 70%, tau npaj tseg. Txhawm rau kom ncav cuag 80% thaum pib ntawm lub xyoo pua 21st, qhov no yuav xav tau ntau ntau ntawm cov xaim hluav taws xob PVC yas yas kav dej xau. Txoj kev ua lag luam dav dav muab lub zeem muag zoo dua rau kev txhim kho cov kav dej yas.