Imiyoboro ya PEubu bari ku isoko, kandi bimaze kuba ibicuruzwa bimenyerewe cyane cyane ibyo mu nganda.Iyo imiyoboro ya PE ivugwa, bahita batekereza kwihanganira kwambara, kurwanya umuvuduko, kurwanya ruswa no kuramba.Hano hari imiyoboro myinshi ya PE.Ubwoko, ibikoresho fatizo PE nayo igabanijwe mubwoko bwinshi, ibicuruzwa biva mu miyoboro ya PE nabyo bigabanijwe mubwoko bwinshi, ibisobanuro birambuye byuyu munsi, ni irihe tandukaniro riri hagati yuburinganire bwumuyoboro wa PE80 numuyoboro wa PE100?
PE ibikoresho ni polyethylene, nibikoresho bitandukanye bya plastiki.Nibikoresho bya polymer byashizwe muri polyethylene.
Ahanini igabanijwemo ibyiciro bibiri: ubucucike buke polyethylene LDPE (imbaraga zo hasi);ubucucike bukabije polyethylene HDPE.Ibikoresho bya PE bigabanijwemo amanota atanu ukurikije amahame mpuzamahanga ahuriweho: icyiciro cya PE32, icyiciro cya PE40, icyiciro cya PE63, icyiciro cya PE80 nicyiciro cya PE100.
Umusaruro wa PE imiyoboro itanga amazi ni polyethylene yuzuye (HDPE), kandi amanota yayo ni PE80 na PE100 (ukurikije amagambo ahinnye ya Minimum Required Strength, MRS).MRS ya PE80 igera kuri 8MPa;MRS ya PE100 igera kuri 10MPa.MRS bivuga imbaraga zo guhangayikishwa n'umuyoboro (agaciro kabaruwe kageragejwe ukurikije amahame mpuzamahanga).
PE80 (8.00 ～ 9.99Mpa) ni igishushanyo mbonera kirimo antimoni trioxide ya 80% kuri polyethylene substrate, ishobora gukoreshwa cyane mugukina no gukora firime icyarimwe.Ni granular yubusa-yuzuye umukungugu utagira umukungugu utekanye neza mumusaruro kuruta ifu gakondo, byoroshye kumenya dosiye, kandi ufatwa nkibikorwa rusange-bigezweho, bigenda byisanzuye muburyo bwa granular.
PE100 (10.00 ～ 11.19Mpa) numubare wamanota wabonye mukuzenguruka imbaraga nkeya zisabwa (MRS) yibikoresho fatizo bya polyethylene.Ukurikije GB / T18252, imbaraga za hydrostatike yibikoresho bihuye na 20 ℃, imyaka 50 kandi byavuzwe ko bishoboka ko 97.5% byagenwe hakurikijwe GB / T18252.σLPL, hindura MRS, kandi ugwize MRS kuri 10 kugirango ubone umubare wibikoresho.
Niba imiyoboro n'ibikoresho biva mu byiciro bitandukanye by'ibikoresho fatizo bya polyethylene bigomba guhuzwa, ingingo zigomba gukorerwa ibizamini bya hydraulic.Muri rusange, PE63, PE80, PE100 ivanze nigipimo cyo gutemba (MFR) (190 ° C / 5kg) hagati ya 0.2g / 10min na 1.3g / 10min bigomba gufatwa nkaho byahujwe kandi bishobora guhuzwa.Ibikoresho bibisi hanze yuru rwego bigomba gupimwa kugirango hamenyekane.
1. Umuyoboro wa PE100 polyethylene ni iki?
Iterambere ryibikoresho bya polyethylene bizwi ko bigabanijwemo ibisekuru bitatu, aribyo byiciro bitatu byiterambere:
Igisekuru cya mbere, polyethylene nkeya kandi "ubwoko bwa mbere" polyethylene yuzuye cyane, bifite imikorere mibi kandi bihwanye nibikoresho bya polyethylene biri munsi ya PE63.
Igisekuru cya kabiri, cyagaragaye mu myaka ya za 1960, ni umuyoboro uciriritse wa polyethylene umuyoboro ufite imbaraga ndende ndende ya hydrostatike hamwe no guhangana na crack, ubu bikaba byitwa PE80 yo mu rwego rwa polyethylene.
Igisekuru cya gatatu, cyagaragaye mu myaka ya za 1980, cyitwa umuyoboro wa gatatu polyethylene umuyoboro udasanzwe PE100.PE100 bivuze ko kuri 20 ° C, umuyoboro wa polyethylene urashobora gukomeza imbaraga nkeya zisabwa MRS ya 10MPa nyuma yimyaka 50, kandi ikaba ifite imbaraga zo kurwanya imikurire yihuse.
2. Ni izihe nyungu nyamukuru z'umuyoboro wa polyethylene PE100?
PE100 ifite ibintu byiza byose bya polyethylene, kandi imiterere yubukanishi iratera imbere kuburyo bugaragara, bigatuma PE100 ifite ibyiza byinshi kandi ikoreshwa mubice byinshi.
2.1 Kurwanya ingufu zikomeye
Kuberako PE100 resin ifite imbaraga byibuze zisabwa 10MPa, irakomeye cyane kurenza izindi polyethilen, kandi gaze namazi birashobora gutwarwa numuvuduko mwinshi;
2.2 Urukuta ruto
Mugihe cyumuvuduko usanzwe ukora, urukuta rwumuyoboro rukozwe mubikoresho bya PE100 rushobora kunanuka cyane.Ku miyoboro minini ya diametre, gukoresha imiyoboro yometseho uruzitiro rushobora kubika ibikoresho no kwagura ubuso bwagace kambukiranya imiyoboro, bityo bikongerera ubushobozi bwo gutwara imiyoboro.Niba ubushobozi bwo gutwara buhoraho, kwiyongera kwambukiranya ibice biganisha ku kugabanuka kw umuvuduko wogutemba, kugirango ubwikorezi bushobora kugerwaho na pompe ntoya, ariko ikiguzi kirakizwa.
2.3 Impamvu zo hejuru z'umutekano
Niba umuyoboro ufite ubunini cyangwa igitutu cyo gukora cyarasobanuwe, ibintu byumutekano PE100 ishobora kwemeza byemezwa mubihe bitandukanye bya polyethylene.
2.4 Gukomera cyane
Ibikoresho bya PE100 bifite modulus ya elastique ya 1250MPa, irenga 950MPa ya resin isanzwe ya HDPE, ituma umuyoboro wa PE100 ufite impeta zikomeye.
3. Ibikoresho bya mashini ya PE100 resin
3.1 Imbaraga Zirambye
Imbaraga zihoraho zagenwe no kugerageza umurongo ku bushyuhe butandukanye (20 ° C, 40 ° C, 60 ° C na 80 ° C).Kuri 20 ℃, PE100 resin irashobora kugumana imbaraga za 10MPa nyuma yimyaka 50, (PE80 ni 8.0MPa).
3.2 Kurwanya guhangayika neza
PE100 polyethylene umuyoboro udasanzwe ufite imbaraga zo kurwanya ihungabana, gutinza ikibazo cyo guhagarika umutima (> amasaha 10000), ndetse birashobora no gutinda imyaka irenga 100 ukurikije 20 ℃.
3.3 Kurwanya gukomeye gukura byihuse
Ibisabwa ku bushobozi bwo kurwanya imikurire yihuse y’ibice bigabanya imikoreshereze y’imiyoboro gakondo ya polyethylene: kuri gaze, umuvuduko w’umuvuduko ni 0.4MPa, naho gutanga amazi, ni 1.0MPa.Bitewe n'ubushobozi budasanzwe bwa PE100 bwo kurwanya imikurire yihuse, umuvuduko w’umuvuduko wa gazi karemano wongerewe kugera kuri 1.0MPa (1.2MPa yakoreshejwe mu Burusiya na 1.6MPa mu muyoboro w’amazi).Mu ijambo rimwe, gukoresha ibikoresho bya PE100 polyethylene mu miyoboro bizemeza ko ibipimo ngenderwaho byimiyoboro ya pe100 itanga amazi mumiyoboro ya pipine itekanye, ifite ubukungu kandi ifite ubuzima burebure.
Reba: http: //www.chinapipe.net/baike/ubumenyi/15022.html
Igihe cyo kohereza: Ugushyingo-04-2022
