Isici se-ultra high molecular weight polyethylene

1. ukumelana nokugqoka okuphezulu kakhulu

Isisindo se-Ultra high tube molecular size sibe ngaphezu kwezigidi ezi-2, inkomba yokugqokwa incane, okukunikeza ukumelana okuphezulu kakhulu nokuslayida.Ukumelana nokugqoka kuphakeme izikhathi ezingu-6.6 kunensimbi evamile ye-alloy futhi izikhathi ezingu-27.3 ziphakeme kunensimbi engagqwali.Kuyizikhathi ezingu-17.9 ze-phenolic resin, izikhathi ezingu-6 zenayiloni, izikhathi ezingu-4 ze-polyethylene, zithuthukisa kakhulu impilo yesevisi yepayipi.

2. ukumelana nomthelela omkhulu

Ivelu yokuqina komthelela ye-uHMW-pipeline iphakeme kakhulu phakathi kwamapulasitiki obunjiniyela akhona.Izinto eziningi zizoqhekeka, ziphuke, ziphuke noma zikhathale ngaphansi kokuqhuma okukhulu noma okuphindaphindiwe.Lo mkhiqizo ngokwezinga elijwayelekile le-GB1843, ukuhlolwa komthelela we-cantilever beam ukuze ungatholi monakalo, ungamelana nomthelela oqinile wangaphandle, ukugcwala kwangaphakathi, ukushintshashintsha kwengcindezi.

3. ukumelana nokugqwala

I-Uhmw-pe iwuhlobo lwesakhiwo seqembu lamangqamuzana agcwele, ngakho ukuzinza kwawo kwamakhemikhali kuphezulu kakhulu, umkhiqizo ungamelana nokuguguleka kwamakhemikhali anamandla, ngaphezu kwe-asidi eqinile ekushiseni okuphezulu kunokugqwala okuncane, kwezinye i-alkali, i-asidi akugqwalile.Ingasetshenziswa ku-hydrochloric acid egxilile ngokugxila ngaphansi kwama-80%.Iqinile ku-sulfuric acid futhi igxile ngaphansi kwama-75% kanye ne-nitric acid ene-concentration engaphansi kwama-20%.

4. ukuzigcoba okuhle

Ngoba ishubhu le-UHMWPE liqukethe izinto ezinamakha, futhi ukuthambisa kwayo kuhle kakhulu.I-coefficient ye-friction (196N, 2 amahora) ingu-0.219MN/m kuphela (GB3960).Ukusebenza kwayo kokuslayida kuphakeme kunokwensimbi egcotshwe ngamafutha noma yethusi.Ikakhulukazi endaweni enzima, uthuli, udaka kanye nezindawo eziningi, ukusebenza komkhiqizo okomile kokugcoba kuboniswa ngokugcwele.Akukhona nje kuphela ukuthi ingakwazi ukuhamba ngokukhululeka, futhi ivikele ucezu lokusebenza olufanele ekugugeni noma ekucindezelekeni.

5. ukumelana nokushisa okuphansi okuyingqayizivele

Ipayipi le-polyethylene elinesisindo esiphezulu samangqamuzana linokumelana nezinga lokushisa eliphansi kakhulu, futhi ukumelana nomthelela walo kanye nokumelana nokugqoka akushintshile ku-minus 269 degrees Celsius.Njengamanje iyona kuphela ipulasitiki yobunjiniyela engasebenza emazingeni okushisa asondele ku-zero ngokuphelele.Ngesikhathi esifanayo, ipayipi le-uHMWPE linokubekezela okubanzi kwezinga lokushisa, elingasebenza ekushiseni kuka -269 ℃ kuya ku-80 ℃ isikhathi eside.

6. Akulula ukukala

Ipayipi le-Uhmwpe linomsebenzi omuhle wokunganamatheli kanye nokuqedwa kwepayipi eliphakeme ngenxa ye-coefficient yalo ephansi yokungqubuzana kanye nokungeyona i-polarity.Izinto ezikhona ngokuvamile zikala phakathi nendawo ngevelu engu-PH engaphezu kuka-9, kodwa ipayipi le-uHMWPE alilingani, okubaluleke kakhulu ohlelweni lokukhipha umlotha wamalahle ezimbonini zamandla ashisayo.Kuwoyela ongahluziwe, udaka namanye amapayipi okuthutha nawo afaneleka kakhulu.

7. Impilo yeshalofu ende

I-Uhmwpe inezakhi zofuzo ezimbalwa ezingagcwele unsaturated kumangqamuzana ayo, futhi amandla ayo okukhathala angaphezu kwezikhathi ezingu-500,000.Inokumelana nokuqhekeka kokucindezeleka okungcono kakhulu kanye nokumelana nokuqhekeka kwemvelo.I-4000H, izikhathi ezingaphezu kwezingu-2 ze-PE100, ingcwatshwe iminyaka engu-50 noma ngaphezulu, isengakwazi ukugcina ngaphezu kuka-70% wezakhiwo zemishini.

8. Ukufakwa kalula

I-Ultra high molecular weight polyethylene (UHMW—-PE) ubude beyunithi yengxenye yobude iyingxenye yesishiyagalombili kuphela yesisindo sepayipi lensimbi, ukuze ukulayisha nokukhipha, ukuthutha, ukufakwa kube lula kakhulu, futhi kunganciphisa umfutho wokusebenza kwabasebenzi, UHMW-PE ipayipi ine-anti-ukuguga eqinile, iminyaka engu-50 akulula ukuguga.Kungakhathaliseki ukwakhiwa komhlaba, noma wangcwatshwa ngaphansi komhlaba kungaba.Ukuthi i-welding noma uxhumano lwe-flange lungafakwa, luphephile, luthembekile, luyashesha futhi lufanelekile, akukho ukugqwala, ukusebenza kanye nokonga abasebenzi, kukhombisa ngokugcwele ukusetshenziswa kwepayipi le-HMWPE "ukonga amandla, ukuvikelwa kwemvelo, ukonga kanye nokusebenza kahle" ukuphakama.

9. Ezinye izici

Ipayipi le-polyethylene elinesisindo esiphezulu se-molecular kanye nokumuncwa kwamandla, ukumuncwa komsindo, i-anti-static, ikhono lokuvikela i-electronic, hhayi ukumuncwa kwamanzi, amandla adonsela phansi alula, ukwenza machining kalula, ukufaka imibala nezinye izici ezivelele.