2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-16 04:44
Polyethylene ntawv muaj ntau qhov zoo, nws ruaj, hnyav thiab pheej yig. Raws li qhov no, nws yog nrov heev hauv ntau yam haujlwm. Cia peb ua tibzoo saib txhua yam txog cov ntawv polyethylene.
Yam ntxwv
Cov ntawv polyethylene tau tsim nyob rau hauv nruj raws li cov ntaub ntawv tswj hwm uas qhia meej tias cov khoom no tau tsim, thauj thiab khaws cia li cas. Tam sim no, hom siv feem ntau yog cov ntawv ua los ntawm cov khoom siv polyethylene siab (LDPE) thiab qis-siab (HDPE). Rau cov hom no, cais cov qauv tau tsim, GOST 16338-85 rau HDPE thiab 16337-77 rau LDPE.
Tsawg ntom polyethylene los xij muaj cov yam ntxwv hauv qab no:
- ntom ntom ntom ntom heev - ntau dua 0.941 g / cm³;
- tiv taus te zoo heev;
- ya raws tsis kam;
- zoo tiv taus kev sib cuag nrog cov roj uas muaj roj thiab roj;
- tus phooj ywg zoo
Cov ntawv siab polyethylene siab muaj cov khoom siv yooj yim xws li:
- yooj thiab yas;
- ntom 0, 900–0, 939 g / cm³;
- melting kub - + 103– + 110 degreesC;
- tiv taus qhov kub qis txog li rho tawm 120 ° С.
Cov qauv qhia tag nrho cov kev ntsuas rau ob pawg, tau kawm lawv, koj tuaj yeem paub koj tus kheej nrog txhua yam hauv kev nthuav dav. Ob qho khoom siv tsis tso cov tshuaj phem thiab tsis muaj kev phom sij rau tib neeg lub cev hauv kev sib cuag nrog lawv. Thiab tseem, thaum siv nws, tsis tas yuav muaj kev ceev faj. Koj tseem tuaj yeem pom tsawg dua - hnyav hnyav hnyav polyethylene. Hom khoom siv no tau nce kev tiv thaiv rau cov neeg ua haujlwm nyuaj, nruj, ntseeg tau thiab hnav tsis kam. Nws tuaj yeem tiv taus qhov cuam tshuam txawm tias rho tawm 200 ° С, pib yaj ntawm + 150 ° С, nws qhov ntom yog 0.95 g / cm³.
Saib
Polyethylene ntawv, raws li txoj kev tsim khoom, tau muab cais ua pawg xws li:
- HDPE;
- LDPE;
- siab molecular phaus polyethylene ntawv.
Kev kub siab thiab qis polyethylene yog tsim los ntawm extrusion, thiab lub cev hnyav hnyav - los ntawm kev nias. Txhawm rau txhim kho cov yam ntxwv ntawm monolithic polyethylene, ntxiv rau kev ua cov ntaub ntawv raw los ntawm cov cua sov thiab cov txheej txheem kev siv tshuab, ntau yam ntxiv ntxiv tau ntxiv. Txoj hauv kev no, tuaj yeem tau txais cov khoom hu ua "stitched" thiab "non-stitched". Hauv thawj kis, cov tshuaj lom neeg tau ntxiv, ib daim ntawv monolithic cov khoom nrog lub zog ntxiv thiab cov yam ntxwv ua haujlwm kub tau txais. Hauv qhov xwm txheej thib ob, roj tau ntxiv thaum lub sij hawm yaj (isobutane, freon lossis propane-butane tau muab). Qhov tshwm sim yog cov khoom hnyav nrog cov yam ntxwv zoo ib yam li polyethylene.
Tseem ceeb! Hauv nws daim ntawv dawb huv, polyethylene yog dawb. Tsuas yog cov ntawv nyias nyias yog pob tshab, thiab yog tias cov tuab tuab nce, nws plam pob tshab.
Nyiaj muas
Hauv kev siv (kev lag luam thiab lub neej niaj hnub), HDPE yog qhov feem ntau. Nws lub npe tseem ceeb yog PE80, PE100, PE300. PE500 twb yog lub cev hnyav hnyav thiab PE1000 yog qhov hnyav hnyav heev . Qhov ntsuas kub ntawm kev ua haujlwm nyob ntawm qhov cim. Rau cov khoom siv yooj yim, nws muaj peev xwm siv thawj peb qib ntawm qhov kub ntawm -50 txog +80, thiab rau cov qib siab molecular thiab ultra-high-molecular los ntawm -100 txog + 80 degrees Celsius.
Qhov ntev (kho kom raug)
Ib daim ntawv nrog qhov ntev ntawm 1500x3000 mm tau suav tias yog tus qauv. Lub thickness txawv, los ntawm 1 hli. Tab sis qhov nrov tshaj plaws yog los ntawm 3 txog 10 hli. Qhov hnyav sib txawv heev nyob ntawm nws. Muaj ntau cov ntawv los ntawm ntau cov tuab tuab ntawm kev muag, xav txog qhov tsis ntawm qee yam ntawm lawv.
| Thickness (hli) | Qhov hnyav (kg) | |
| ntawv txheem | square meter | |
| 12, 9 | 2, 9 | |
| 21, 4 | 4, 8 | |
| 25, 7 | 5, 7 | |
| 10 | 42, 9 | 9, 5 |
| 20 | 85, 7 | 19, 1 |
| 25 | 107, 1 | 23, 8 |
Ntawm qhov kev thov ntawm cov neeg siv khoom, nws tuaj yeem tsim cov ntawv txheeb ntawm lwm qhov ntau thiab tsawg, piv txwv li, 1000x2000 lossis 2000x4000 mm.
Cov ntawv thov
Thaj chaw ntawm kev siv cov khoom siv no, vim qhov yooj yim ntawm kev ua thiab kev sib txuas, yog dav heev. Nws tuaj yeem yooj yim xyaum, sawn thiab txiav. HDPE thiab LDPE panels tuaj yeem khoov thiab siv yuav luag txhua lub cev . Lawv tau pom lawv qhov tshwj xeeb hauv cov zaub mov, tshuaj lom neeg, tsheb thiab lwm yam lag luam. Lawv ua txhua yam ntau heev, los ntawm cov ntim khoom noj mus rau pas dej da. Lub cev hnyav hnyav hnyav polyethylene, ntxiv rau txhua qhov chaw teev tseg, tseem siv hauv kev ua tub rog vim nws cov khoom zoo dua qub - daim hlau rau cov cuab yeej tiv thaiv lub cev thiab lub kaus mom hlau tau ua los ntawm nws.
Pom zoo:
Cov Ntawv Ua Npuas Ncauj: Qhov Ntev Ntawm Cov Ntawv Ntim Thiab Lwm Yam Ua Npuas Dej, Qhov Hnyav, Cov Ntawv Nyias Ntawm 50 Hli Thiab 100 Hli, Lwm Yam Kev Xaiv. GOST. Yam Ntxwv
Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm daim ntawv ua npuas ncauj? Dab tsi yog qhov ntev ntawm cov ntawv ntim thiab lwm yam ua npuas dej? Qhov hnyav ntawm cov ntawv ua npuas dej yog dab tsi? Dab tsi ua haujlwm haum rau daim ntawv nyias nyias ntawm 50 mm thiab 100 mm? Lub hom phiaj ntawm ua npuas dej yog dab tsi? Koj yuav tsum ua haujlwm nrog nws li cas? Yuav kho nws li cas?
Qhov Hnyav Ntawm Cov Roj Silicate Blocks: Ntau Npaum Li Cas Cov Khoom Hnyav 600x300x200 Thiab 200x300x600, 600x200x300 Thiab 600x300x250, 600x400x250 Thiab Lwm Qhov Ntau Thiab Tsawg? Qhov Hnyav Ntawm Ib Ntu Ntawm Cov Roj Silicate Thiab Lub Voos Xwmfab
Thaum tsim kho, koj yuav tsum paub qhov hnyav ntawm cov roj silicate blocks. Ntau npaum li cas cov thaiv 600X300X200 thiab 200X300X600, 600X200X300 thiab 600X300X250 hnyav? Dab tsi yog qhov hnyav ntawm tus qauv nyob ntawm? Yuav xam nws li cas?
Qhov Hnyav Ntawm Tus Nplaig-thiab-zawj Slabs: Ntau Npaum Li Cas 80 Hli Nplaig-thiab-zawj Slabs, Cov Khoom Hnyav Thiab Hollow Thaiv Hnyav? Qhov Hnyav Ntawm 1 Daim Ntawm GWP Thiab Lwm Qhov Ntau
Vim li cas koj thiaj xav paub qhov hnyav ntawm daim hlau nplaig thiab zawj? Ntau npaum li cas 80 hli tus nplaig-thiab-zuaj phaj thiab lwm qhov hnyav? Qhov hnyav ntawm cov khoom thiab cov khoob khoob sib txawv li cas? Ntau npaum li cas slabs los ntawm cov tuam txhab sib txawv hnyav?
Lub Cev Hnyav Hnyav Polyethylene: Ultra Siab Molecular Hnyav Polyethylene, Siab Ntom Ntom UHRPE PE-1000 Thiab Hnyav Hnyav Molecular
Lub cev hnyav hnyav polyethylene: nws yog dab tsi thiab hauv thaj chaw twg nws siv? Cov yam ntxwv ntawm cov khoom siv thiab nws cov khoom ua tau zoo. UHMWPE, HDPE PE-1000 thiab UHMWPE yog dab tsi?
Galvanized Hlau: Hlau Nrog Txoj Kab Uas Hla Ntawm 2-3 Hli Thiab 4-5 Hli, 6-8 Hli Thiab Lwm Yam Hlau, Qhov Hnyav Ntawm 1 Meter Ntawm Cov Xaim Mos, Cov Yam Ntxwv Thiab Lub Hom Phiaj
Galvanized hlau yog ib qho ntawm ntau hom khoom siv hlau thiab yog qhov xav tau zoo hauv ntau yam haujlwm ntawm tib neeg kev ua. Koj lub hom phiaj twg koj xav tau cov hlau thiab lwm cov xov hlau nrog txoj kab uas hla ntawm 2-3 hli thiab 4-5 hli, 6-8 hli? Hom twg yog nws? Yuav xaiv qhov tuab li cas?
