Cov kev cai sib txawv rau ntau hom kev ua cov kav dej PE
Hu rau kuv. yog ua los ntawm polymerization ntawm monomer ethylene, vim muaj ntau yam mob ntawm polymerization reaction xws li siab thiab kub thaum lub sijhawm polymerization, ntau yam densities ntawm resin tuaj yeem tau txais, thiab yog li muaj high-density polyethylene, medium-density polyethylene thiab low-density polyethylene. Hauv kev ua ntau hom PE yeeb nkab, raws li ntau yam mob ntawm nws daim ntawv thov, kev xaiv ntawm ntau yam resin qib, thaum cov kev cai ntawm extruder thiab pwm kuj txawv.
(1) Kev sib txuas txhim khu kev qha: lub kaw lus polyethylene piping system txuas nrog los ntawm electro-thermal fusion, thiab lub zog ntawm cov pob qij txha siab dua lub zog ntawm lub cev piping.
(2) Kev tiv thaiv zoo rau qhov kub thiab txias qis: qhov kub thiab txias qis ntawm polyethylene yog qis heev, thiab nws tuaj yeem siv rau hauv qhov kub thiab txias ntawm -60-60 ℃. Thaum lub caij ntuj no tsim kho, yuav tsis muaj cov yeeb nkab brittleness vim yog qhov kev tiv thaiv zoo ntawm cov khoom siv.
(3) Kev tiv thaiv zoo rau kev tawg ntawm kev ntxhov siab: HDPE muaj qhov tsis tshua muaj qhov tsis zoo, lub zog shear siab thiab kev tiv thaiv khawb zoo heev, thiab kev tiv thaiv zoo rau kev tawg ntawm kev ntxhov siab ib puag ncig.
(4) Kev tiv thaiv tshuaj lom neeg zoo: Hdpe Yeeb NkabCov kav dej no tiv taus kev xeb los ntawm ntau yam tshuaj lom neeg, thiab cov tshuaj lom neeg uas muaj nyob hauv av yuav tsis ua rau cov kav dej puas tsuaj. Polyethylene yog ib qho insulator ntawm hluav taws xob, yog li nws yuav tsis lwj, xeb lossis electrochemical corrosion; ntxiv rau nws yuav tsis txhawb kev loj hlob ntawm algae.
(5) Kev tiv taus kev laus thiab lub sijhawm ua haujlwm ntev: cov kav dej polyethylene uas muaj 2-2.5% ntawm cov pa roj carbon dub sib npaug tuaj yeem khaws cia lossis siv sab nraum zoov hauv huab cua qhib rau 50 xyoo yam tsis muaj kev puas tsuaj los ntawm hluav taws xob ultraviolet.
(6) Kev tiv thaiv zoo: qhov kev sim sib piv ntawm kev tiv thaiv kev puas tsuaj ntawm HDPE yeeb nkab thiab yeeb nkab hlau qhia tau hais tias qhov kev tiv thaiv kev puas tsuaj ntawm HDPE yeeb nkab yog 4 npaug ntawm cov yeeb nkab hlau. Hauv kev thauj mus los slurry, piv nrog cov yeeb nkab hlau, HDPE yeeb nkab muaj kev tiv thaiv kev puas tsuaj zoo dua, uas txhais tau tias thaT Hdpe yeeb nkab muaj lub sijhawm ua haujlwm ntev dua thiab kev lag luam zoo dua.
(7) kev ywj pheej zoo: qhov yooj ywm ntawm HDPE yeeb nkab ua rau nws yooj yim khoov, kev tsim kho vaj tse tuaj yeem hloov pauv los ntawm kev hloov pauv kev taw qhia ntawm cov yeeb nkab kom hla dhau cov teeb meem, ntau zaus, qhov yooj ywm ntawm cov yeeb nkab tuaj yeem txo qhov ntau ntawm piCov Khoom Siv Pe thiab txo tus nqi ntawm kev teeb tsa.
(8) tsis tshua muaj kev tiv thaiv rau cov dej ntws: HDPE pipeline muaj qhov chaw du sab hauv, nws cov Manning's coefficient yog 0.009. kev ua haujlwm du thiab cov yam ntxwv tsis lo rau kom ntseeg tau tias HDPE pipeline muaj peev xwm thauj khoom ntau dua li cov yeeb nkab ib txwm muaj, tab sis kuj txo qhov poob siab ntawm cov yeeb nkab thiab kev siv hluav taws xob ntawm kev xa dej.
(9) Kev tuav yooj yim: Cov yeeb nkab HDPE sib dua li cov yeeb nkab ua los ntawm pob zeb, cov yeeb nkab galvanized thiab cov yeeb nkab hlau, nws yooj yim rau kev tuav thiab teeb tsa, txo cov neeg ua haujlwm thiab cov khoom siv xav tau, txhais tau tias tus nqi teeb tsa ntawm qhov project raug txo qis heev.
(10) Ntau yam kev tsim kho tshiab: HDPE pipeline muaj ntau yam kev tsim kho, ntxiv rau cov txheej txheem khawb av ib txwm siv tau rau kev tsim kho, tab sis kuj muaj ntau yam kev tsim kho tshiab uas tsis yog khawb av xws li kev khawb yeeb nkab, kev khawb av, kev sib txuas yeeb nkab, kev tawg thiab lwm txoj hauv kev tsim kho, uas yog qhov kev xaiv zoo rau qee qhov chaw uas tsis pub khawb av, yog li HDPE pipeline muaj ntau yam kev siv.
