Taw qhia rau Polyethylene Pipes

Qee hom tshuaj muaj peev xwm ua rau cov tshuaj corrosion, xws li corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), thiab halogenated hydrocarbons (carbon tetrachloride). Cov polymer no tsis yog hygroscopic thiab muaj dej vapor tsis kam, ua rau nws tsim nyog rau kev ntim khoom. Polyethylene muaj cov khoom siv hluav taws xob zoo heev, tshwj xeeb tshaj yog nws lub zog dielectric siab, ua rau nws zoo heev rau cov xov hlau thiab cables. Cov qib nruab nrab mus rau qib siab molecular hnyav muaj qhov cuam tshuam zoo heev, txawm tias nyob hauv chav tsev kub thiab qis qis ntawm -40F.
Polyethylene tuaj yeem tsim tau siv ntau hom kev sib txawv. Xws li daim ntawv extrusion, zaj duab xis extrusion, yeeb nkab lossis profile extrusion, tshuab moulding, txhaj tshuaj molding, thiab rotational molding.
Extrusion: Qib siv rau extrusion ntau lawm feem ntau muaj ib tug yaj index tsawg tshaj li 1 thiab MWD ntawm nruab nrab mus rau dav. Thaum lub sijhawm ua haujlwm, MI qis tuaj yeem ua tiav lub zog tsim nyog. Cov qib MWD dav dua yog qhov tsim nyog rau extrusion molding vim tias lawv muaj ntau dua nrawm dua, txo qis kev tuag, thiab txo cov pob txha tawg.
Polyethylene muaj ntau yam kev siv extrusion, xws li xov hlau, cables, hoses, kav, thiab profiles. Daim ntawv thov ntau yam ntawm cov kav dej sib txawv los ntawm cov kav dej me me rau cov pa roj carbon monoxide rau cov kav dej tuab tuab nrog lub cheeb ntawm 48 ntiv tes rau cov kav dej hauv nroog thiab hauv nroog. Kev siv cov kav dej loj loj hollow phab ntsa los hloov cov kav dej los nag thiab lwm cov kav dej phwj ua los ntawm cov pob zeb loj hlob sai.
Phaj thiab thermoforming: Cov thermoforming hauv ob sab phlu ntawm ntau lub thawv ntim khoom noj khoom haus loj yog ua los ntawm PE, uas muaj cov tawv tawv, lub cev nyhav, thiab ua haujlwm ntev. Lwm cov ntaub ntawv thiab cov khoom siv thermoformed muaj xws li cov av nkos, lub tank liner, lub lauj kaub tiv thaiv npog, lub thawv thauj, thiab cov kaus poom. Daim ntawv thov loj thiab loj hlob sai ntawm cov ntaub ntawv yog yas zaj duab xis los yog pas dej ua ke hauv qab lub zos, uas yog raws li lub toughness, tshuaj tsis kam, thiab impermeability ntawm MDPE.
Tshuab moulding: Ntau tshaj li ib feem peb ntawm cov polyethylene muag hauv Tebchaws Meskas yog siv los ua tshuab moulding. Cov no muaj xws li cov fwj uas muaj tshuaj dawb, roj cav, tshuaj ntxuav tes, mis nyuj, thiab dej distilled mus rau lub tub yees loj, tsheb roj tank, thiab cov kaus poom. Cov yam ntxwv ntawm cov tshuab moulding qib, xws li yaj lub zog, ES-CR, thiab toughness, zoo ib yam li cov siv rau daim ntawv thiab kub daim ntawv thov, yog li cov qib zoo sib xws yuav siv tau.
Kev txhaj tshuaj molding feem ntau yog siv los tsim cov ntim me me (tsawg dua 16oz) rau ntim tshuaj, tshuaj zawv plaub hau, thiab tshuaj pleev ib ce. Ib qho kom zoo dua ntawm cov txheej txheem no yog qhov tsim cov fwj tuaj yeem tshem tawm cov npoo thiab cov ces kaum, tshem tawm qhov xav tau ntawm kev ua cov kauj ruam tom ntej xws li tshuab molding. Txawm hais tias muaj qee qhov nqaim MWD qib siv los txhim kho qhov chaw tiav, cov qib nruab nrab mus rau dav MWD feem ntau yog siv.
Kev txhaj tshuaj molding: Polyethylene muaj ntau daim ntawv thov, xws li rov siv tau cov khob ntim dej uas siv tau rov qab mus rau 5-gsl cov kaus poom, haus 1/5 ntawm cov khoom siv polyethylene. Cov qib txhaj tshuaj molding feem ntau muaj qhov ntsuas qhov ntsuas ntawm 5-10, nrog rau qib nrog qis toughness thiab ntau dua processability. Kev siv suav nrog cov khoom ntim cov hnab ntim nyias nyias rau cov khoom siv niaj hnub thiab khoom noj; Resilient thiab ruaj khov khoom noj khoom haus thiab xim kaus poom; Kev ua haujlwm siab rau ib puag ncig kev ntxhov siab tawg daim ntaub ntawv, xws li cov roj cav me me thiab 90 gal khib nyiab cov kaus poom.
Roll forming: Cov ntaub ntawv ua tiav siv txoj kev no feem ntau crushed rau hauv cov khoom siv hmoov, cia nws yaj thiab ntws thaum lub sij hawm thermal cycling. Rotational molding siv ob hom PE: universal thiab cross-linkable. Qib MDPE/polyethylene feem ntau muaj qhov ntom ntom ntawm 0.935 txog 0.945g/CC, nrog rau qhov nqaim MWD, muab cov khoom lag luam muaj kev cuam tshuam tsis zoo thiab qis qis. Nws melt index range feem ntau yog 3-8. Cov qib MI siab dua feem ntau tsis siv tau vim tias lawv tsis muaj qhov kev cia siab cuam tshuam thiab ib puag ncig kev ntxhov siab tawg tsis kam ntawm cov khoom sib hloov molded.
Kev ua haujlwm siab rotational molding daim ntawv thov siv cov khoom tshwj xeeb ntawm nws cov qib sib txuas sib txuas. Cov qib no muaj cov dej ntws zoo nyob rau hauv thawj theem ntawm lub voj voog molding, thiab tom qab ntawd hla kev sib txuas los tsim lawv cov kev tiv thaiv zoo rau ib puag ncig kev ntxhov siab tawg thiab toughness. Hnav tsis kam thiab huab cua tsis kam. Crosslinkable PE tsuas yog tsim rau cov thawv loj, xws li 500 gal tsheb thauj mus los ntawm ntau lub tank ntim tshuaj mus txog 20000 gal cov chaw ua liaj ua teb.
Nyias zaj duab xis: Polyethylene nyias zaj duab xis ua feem ntau yog siv cov tshuab tshuab zoo tib yam los yog cov txheej txheem ca extrusion. PE feem ntau yog siv rau cov yeeb yaj kiab nyias, thiab ob qho tib si dav dav polyethylene (LDPE) lossis linear low density polyethylene (LLDPE) muaj. HDPE zaj duab xis qib feem ntau yog siv nyob rau hauv qhov chaw uas yuav tsum tau superior tensile zog thiab zoo heev impermeability. Piv txwv li, polyethylene zaj duab xis feem ntau yog siv rau hauv cov hnab ntim khoom, hnab ntim khoom noj, thiab ntim khoom noj.