Bodi Yobwezera Mpira | Zobwezera Mpira | Zipangizo Zophunzitsira Mpira
Chidule
Pepala la Polythylene PE 1000 lomwe nthawi zambiri limatchedwa kuti ultra-high-molecular-weight, UHMW, kapena UHMWPE, ndi limodzi mwa mapulasitiki athu otchuka kwambiri. Limapereka kukana bwino ku kukwawa, mankhwala, kukhudzidwa ndi kuwonongeka, ndipo silimathandiza kwambiri kukangana. UHMW siili ndi poizoni, siinunkha fungo, ndipo silimalimbana ndi nyerere.
Mapepala apulasitiki a UHMW nthawi zambiri amapangidwa kukhala zidutswa zosweka, maupangiri a unyolo ndi zida zosinthira ndipo ndi pulasitiki yotchuka kwambiri yopangira chakudya ndi ntchito zoyika m'mabotolo. Magulu enieni a PE1000 amagwiritsidwanso ntchito pokonza zinthu zambiri poyika ma chute, ma hopper ndi magalimoto otayira zinyalala, zomwe zimathandiza kukonza kuyenda kwa zinthu ndikuletsa kugwedezeka ndi kupindika.
Chizindikiro
| Ayi. | Chinthu | Chigawo | Muyezo Woyesera | Zotsatira |
| 1 | Kuchulukana | g/cm3 | GB/T1033-1966 | 0.91-0.96 |
| 2 | Kuumba shrinkage % | ASTMD6474 | 1.0-1.5 | |
| 3 | Kutalikirana panthawi yopuma | % | GB/T1040-1992 | 238 |
| 4 | Kulimba kwamakokedwe | Mpa | GB/T1040-1992 | 45.3 |
| 5 | Mayeso olimba a mpira 30g | Mpa | DINISO 2039-1 | 38 |
| 6 | Kuuma kwa Rockwell | R | ISO868 | 57 |
| 7 | Mphamvu yopindika | Mpa | GB/T9341-2000 | 23 |
| 8 | Mphamvu yopondereza | Mpa | GB/T1041-1992 | 24 |
| 9 | Kutentha kofewetsa kosasinthasintha. | ENISO3146 | 132 | |
| 10 | Kutentha kwapadera | KJ(Kg.K) | 2.05 | |
| 11 | Mphamvu ya mphamvu | KJ/M3 | D-256 | 100-160 |
| 12 | Kutentha kopitilira muyeso | %(m/m) | ISO11358 | 0.16-0.14 |
| 13 | Katundu wotsetsereka ndi coefficient ya kukangana | Pulasitiki/Chitsulo (chonyowa) | 0.19 | |
| 14 | Katundu wotsetsereka ndi coefficient ya kukangana | Pulasitiki/Chitsulo (chouma) | 0.14 | |
| 15 | Kulimba kwa gombe D | 64 |
Mawonekedwe
1. Kuonjezera kukana kuvala. Chimodzi mwa zinthu zochititsa chidwi kwambiri za UHMW polyethylene ndi kukana kwake kukwiya kwambiri, komwe n'kofunika kwambiri pa ntchito zambiri zauinjiniya. Pakati pa mapulasitiki onse, kukana kwake kuvala ndiye kwabwino kwambiri, ndipo ngakhale kukana kuvala kwanthawi zonse kwa zinthu zambiri zachitsulo (monga chitsulo cha carbon, chitsulo chosapanga dzimbiri, bronze, ndi zina zotero) sikwabwino ngati iyo. Pamene kulemera kwa mamolekyu a polyethylene kukuwonjezeka, zinthuzo zimakhala zolimba kwambiri.
2. Kukana kwakukulu kwambiri kwa mphamvu. Mphamvu ya mphamvu ya polyethylene yolemera kwambiri ya molekyulu imagwirizana ndi kulemera kwake kwa molekyulu. Pamene kulemera kwa molekyulu kuli kotsika kuposa 2 miliyoni, mphamvu ya mphamvu imawonjezeka ndi kuwonjezeka kwa kulemera kwa molekyulu, ndipo imafika pachimake pa pafupifupi 2 miliyoni. Pambuyo pa pachimake, mphamvu ya mphamvu imawonjezeka ndi kulemera kwa molekyulu. Izi zili choncho chifukwa unyolo wa molekyulu ndi wosayenera ndipo umalepheretsa kuwala kwake kwa dzuwa, kotero kuti pali dera lalikulu losasinthika mu macromolecule, lomwe limatha kuyamwa mphamvu yayikulu ya mphamvu.
3. Kuchuluka kwa kupsinjika kochepa. UHMWPE ndi yolimba kwambiri, imakhala ndi kupsinjika kochepa komanso imadzipaka yokha bwino, ndipo ndi chinthu choyenera kugwiritsa ntchito popangira ma bushing, ma slider ndi ma linings.
Kugwiritsa ntchito polyethylene yolemera kwambiri ngati gawo lothandizira kukangana kwa zida sikungowonjezera moyo wokangana, komanso kupulumutsa mphamvu.
4. Kukana mankhwala bwino. Polyethylene yolemera kwambiri ya molekyulu ili ndi kukana dzimbiri kwa mankhwala. Kupatula asidi wokhuthala wa nitric ndi sulfuric acid wokhuthala, sidzawonongeka mu njira zonse za lye ndi acid, ndipo ingagwiritsidwe ntchito mu hydrochloric acid wokhuthala pa kutentha (80°C, Imakhalanso yokhazikika mu <20% nitric acid, <75% sulfuric acid, ndipo imakhazikikanso m'madzi, ndi kusamba m'madzi.)
Komabe, polyethylene yolemera kwambiri ya mamolekyulu ndi yosavuta kutupa mu mankhwala onunkhira kapena a halogenated (makamaka kutentha kwambiri), kotero chisamaliro chapadera chiyenera kuperekedwa mukamagwiritsa ntchito.
5. Madzi ochepa kwambiri. UHMWPE imayamwa madzi pang'ono, siimatenga madzi, siitupa m'madzi, ndipo siimatenga madzi ambiri ngati nayiloni.
6. Kapangidwe ka kutentha. Malinga ndi njira ya ASTM (kulemera 4.6kg/cm2), kutentha kosintha kutentha ndi 85℃. Pakanyamula katundu wochepa, kutentha kwa ntchito kumatha kufika 90℃. Muzochitika zapadera, imaloledwa kugwiritsidwa ntchito pa kutentha kwakukulu. Polyethylene yolemera kwambiri ndi chinthu chokhala ndi kulimba kwabwino kwambiri, kotero kukana kwake kochepa nakonso ndikwabwino kwambiri, ndipo imakhalabe ndi mphamvu zina pa kutentha kochepa kwa -269 ° C, ndipo palibe chizindikiro cha kusweka.
7. Katundu wamagetsi. UHMWPE ili ndi katundu wabwino kwambiri wamagetsi pa kutentha kwakukulu, kukana kwake kwa voliyumu ndi 10-18CM, mphamvu yake yowononga magetsi ndi 50KV/mm, ndipo mphamvu yake yosinthira magetsi ndi 2.3. Pa kutentha kwakukulu ndi pafupipafupi, katundu wake wamagetsi amasintha pang'ono. Pa kutentha kosatha kutentha, ndi yoyenera kwambiri kugwiritsidwa ntchito ngati zinthu zomangira muukadaulo wamagetsi ndi zinthu mu mphero zamapepala.
8. Polyethylene yopanda poizoni kwambiri ndi yopanda kukoma, yopanda poizoni, yopanda fungo, yosawononga, ndipo imayenda bwino m'thupi komanso imasintha mosavuta. Bungwe la United States Food and Drug Administration (FDA) ndi United States Department of Agriculture (USDA) amalola kuti igwiritsidwe ntchito pokhudzana ndi chakudya ndi mankhwala.
Makhalidwe ake, makamaka kukana kuvala, kukana kugwedezeka, ndi mphamvu zodzipaka mafuta, ndi abwino kwambiri pakati pa mapulasitiki aukadaulo.
Kukula kwanthawi zonse
| Dzina la Chinthu | Njira Yopangira | Kukula (mm) | mtundu |
| Pepala la UHMWPE | makina osindikizira nkhungu | 2030*3030*（10-200） | woyera, wakuda, wabuluu, wobiriwira, ena |
| 1240*4040*（10-200） | |||
| 1250*3050*（10-200） | |||
| 2100*6100*（10-200） | |||
| 2050*5050*（10-200） | |||
| 1200*3000*（10-200） | |||
| 1550*7050*（10-200） |
Kugwiritsa Ntchito Mankhwala
Polyethylene yolemera kwambiri ya mamolekyulu imatanthauza kapangidwe ka polyethylene kokhala ndi mamolekyulu olemera oposa 3 miliyoni. Ndi pulasitiki yopangidwa mwaukadaulo yokhala ndi magwiridwe antchito abwino kwambiri. Makhalidwe ake asanu ndi osawonongeka, osakhudzidwa ndi kugwedezeka, osakhudzidwa ndi dzimbiri, odzipaka mafuta okha, komanso okhudzidwa ndi mphamvu. Pali mapulasitiki abwino kwambiri, omwe amadziwika padziko lonse lapansi kuti "zipangizo zodabwitsa".
1. Mapulogalamu ozikidwa pa kukana kuvala ndi kukana kugunda
1) Makina a nsalu
Makina opangira nsalu ndiye gawo loyamba kugwiritsa ntchito la UHMWPE. Pakadali pano, pali pafupifupi zida 30 za UHMWPE zomwe zimagwiritsidwa ntchito kunja kwa dziko mu makina aliwonse opangira nsalu, monga ma shuttle pick, ma shuttle stick, magiya, ma coupling, ma sweeping rods, ma buffer blocks, eccentrics, rod bushings, swing back beams, ndi zina zotero.
2) Makina opangira mapepala
Makina opangira mapepala ndi gawo lachiwiri la ntchito ya UHMWPE. Pakadali pano, kuchuluka kwa UHMWPE komwe kumagwiritsidwa ntchito popanga makina opangira mapepala ndi 10% ya zonse. Mawilo otsogolera, zokokera, zosefera, ndi zina zotero.
3) Makina opakira
Gwiritsani ntchito UHMWPE kuti mulowe m'malo mwa ma fluoroplastics osinthidwa kuti mupange ma guide rails, mipando yotsetsereka, ma fixed plates, ndi zina zotero za ma conveyor, ma guide rails a UHMW-PE, ma spacers, ndi ma guardrails (chitsulo cha pulasitiki).
4) Makina ambiri
UHMWPE ingagwiritsidwe ntchito kupanga magiya, makamera, ma impeller, ma roller, ma pulley, ma bearing, bush, bushings, ma pini, ma gasket, ma gasket, ma elastic couplings, ma screws, ma pipe clamps, ndi zina zotero. Monga ma panel oteteza ma docks ndi ma piers a bridge.
2. Mapulogalamu ogwiritsira ntchito potengera zinthu zodzipaka mafuta komanso zosamamatira
1) kusungira ndi kunyamula zinthu
UHMWPE ingagwiritsidwe ntchito popanga zophimba za ufa, monga: silo, hopper, chute ndi zida zina zobwezeretsera, malo otsetsereka, ma rollers, ndi zina zotero. Coal hopper, powder product hopper ndi bolodi lina la hopper lining storage bin hopper lining.
2) ulimi, makina omanga
UHMWPE ingagwiritsidwe ntchito popanga mbale zoletsa kusweka ndi mabulaketi a zida zaulimi.
3) zolembera
UHMWPE ingagwiritsidwe ntchito popanga ma sled boards, ma sled boards, ndi zina zotero.
3. Ntchito zochokera ku kukana dzimbiri ndi kusayamwa madzi
1) phukusi la chidebe
Kugwiritsa ntchito UHMW-PE popanga zidebe zamadzi ofunda zogwiritsira ntchito mphamvu ya dzuwa pakadali pano ndi gawo limodzi mwa magawo omwe amagwiritsidwa ntchito kwambiri mu UHMWPE.
2) zida zamakemikolo
Gwiritsani ntchito UHMW-PE popanga zinthu monga: zodzaza zotsekera, zinthu zopakira, mabokosi a nkhungu ya vacuum, zinthu zopopera, matabwa operekera mabearing bushes, magiya, malo otsekera, ndi zina zotero.
3) payipi
4. Ntchito zomwe makamaka ndi zaukhondo komanso zopanda poizoni
1) makampani azakudya ndi zakumwa
Mu makampani opanga magetsi a zakumwa, kukana kwake kuvala bwino, kukana kugwedezeka, kudzipaka mafuta okha komanso kusawononga poizoni zimagwiritsidwa ntchito kwambiri popanga magiya osiyanasiyana, makamera, zotchingira zotchingira zotchingira zotchingira, ma gasket, njanji zotsogolera ndi mitundu yosiyanasiyana yotsutsana ndi kupsinjika, kudzipaka mafuta. Ma bushings odzola, ma liners, ndi zina zotero. Monga: njanji zoteteza, mawilo a nyenyezi, zida zotsogolera, matabwa onyamula katundu, ndi zina zotero za makina ophikira chakudya.
5. Kugwiritsa ntchito zinthu zina: ziwalo za sitima, zigawo zamakina zotentha kwambiri, ndi zina zotero.
1) ntchito yotsika kutentha kukana
2) Kugwiritsa ntchito mphamvu zamagetsi zotetezera kutentha
3) Kugwiritsa ntchito m'migodi ya malasha
tingathenso kupanga
Tsamba la UHMWPE +MoS2
Pepala la UHMWPE Losakhudzidwa ndi Mphamvu
Pepala la Anti-Static UHMWPE
Pepala la UHMWPE loletsa moto
Pepala la UHMWPE Loletsa Kuwala kwa Radiation
Pepala loletsa UV UHMWPE
