ISO 2531 k9 ductile hlau kav kav 6 meter ntev DI yeeb nkab Hoobkas rau dej

Cov yeeb nkab hlau yog ib hom cam khwb cia hlau, uas yog cov hlau alloy, carbon thiab silicon.Graphite nyob rau hauv spheroidal graphite cam khwb cia hlau yog nyob rau hauv daim ntawv ntawm spheroids.Feem ntau, qhov loj ntawm graphite yog 6-7.Qhov zoo yuav tsum tau tswj cov spheroidization theem ntawm cov yeeb nkab cam khwb cia yog 1-3 (spheroidization tus nqi ≥80%), yog li cov khoom nws tus kheej yog cov neeg kho tshuab Kev ua tau zoo tau zoo dua qub, nrog rau cov ntsiab lus ntawm cov hlau thiab kev ua haujlwm ntawm cov hlau.Lub annealed ductile hlau yeeb nkab muaj cov qauv metallographic ntawm ferrite ntxiv rau ib qho me me ntawm pearlite, thiab nws cov khoom siv kho tshuab zoo dua.Cov kav hlau kav hlau yog feem ntau hu ua centrifugal ductile hlau kav.Nws muaj cov ntsiab lus ntawm cov hlau, cov khoom ntawm cov hlau, zoo heev los tiv thaiv corrosion, zoo ductility, zoo sealing nyhuv, yooj yim installation, thiab yog tsuas yog siv rau dej, kis tau tus mob, thiab kev thauj mus los ntawm lub nroog, industrial thiab mining lag luam.Roj thiab lwm yam. Nws yog thawj qhov kev xaiv rau cov kav dej thiab muaj kev ua haujlwm zoo heev.Piv nrog rau PE kav, nyob rau hauv cov nqe lus ntawm lub sij hawm installation, ductile kav yog yooj yim dua thiab sai rau nruab dua PE kav, thiab muaj zoo dua sab hauv thiab sab nraud bearing siab tom qab installation;los ntawm qhov kev xav ntawm airtightness thiab corrosion kuj, cov kav dej ductile tau zoo dua airtightness tom qab kev teeb tsa, thiab ntau yam kev tiv thaiv corrosion tuaj yeem siv los txhim kho kev ua haujlwm tiv thaiv corrosion;los ntawm qhov kev xav ntawm hydraulic kev ua tau zoo, vim hais tias cov specifications ntawm cov kav dej feem ntau xa mus rau lub puab txoj kab uas hla, cov specifications ntawm PE kav feem ntau xa mus rau lub sab nraud txoj kab uas hla, vim hais tias nyob rau hauv tib lub specifications, lub ductile raj muaj peev xwm ua tau ntau dua ntws;Nyob rau hauv cov nqe lus ntawm kev teeb tsa thiab kev saib xyuas cov nqi, cov raj xa dej muaj cov nqi zoo dua.Sab hauv phab ntsa yog txau nrog zinc, cement mortar thiab anticorrosive cov ntaub ntawv.

1. Asphalt xim txheej
Asphalt xim txheej yog siv los thauj cov kav dej.Preheating cov yeeb nkab ua ntej pleev xim tuaj yeem txhim kho qhov adhesion ntawm cov xim asphalt thiab ua kom qhuav.

2. Cement mortar hauv ob sab phlu + txheej tshwj xeeb
Hom kev ntsuas sab hauv los tiv thaiv corrosion yog tsim rau cov kav dej xa dej phwj tuaj thiab tuaj yeem txhim kho qhov kev tiv thaiv corrosion ntawm sab hauv.

3. Epoxy coal pitch txheej
Lub epoxy coal tar txheej yog tsim rau ob qho tib si gas pipelines thiab cov kav dej phwj tuaj.Nws yog ob-txheej txheej txheej uas muaj adhesion siab thiab du heev.

4. Epoxy ceramic hauv ob sab phlu
Epoxy ceramic hauv ob sab phlu yog tsim rau cov kav dej phwj thiab cov kav dej, tab sis vim yog cov txheej txheem tsim khoom nyuaj thiab tus nqi siab, nws muaj qee yam kev txwv hauv kev siv.Epoxy ceramic hauv ob sab phlu muaj siab adhesion thiab smoothness, thiab yog ib tug zoo anti-corrosion txheej.

5. Aluminate cement txheej los yog sulfate cement txheej
Ob leeg ntawm cov cement coatings tshwj xeeb no tsim nyog rau kev tiv thaiv sab hauv ntawm cov kav dej hlau siv hauv cov kav dej phwj tuaj txhawm rau txhim kho corrosion tsis kam ntawm cov kua qaub thiab alkali hauv cov kav dej phwj tuaj.

6. Polyurethane txheej
Nws yog ib hom tshiab ntsuab tshwj xeeb txheej tsim kom tau raws li qhov xav tau ntawm kev tiv thaiv ib puag ncig.Nws muaj zoo hnav tsis kam thiab corrosion kuj.