Imichilo yokuvala uphawu ye-PVC isiyintandokazi yezicabha zensimbi zepulasitiki nemicu yokuvala amafasitela ngoba ayiqhekeki futhi kulula ukuyishisela.Kodwa eminyakeni engu-2-3 kuphela, inkinga yavela.Ukuhlukaniswa kwama-PVC plasticizers, inkinga enzima yezimboni zamazwe ngamazwe, kuboniswe ngokucacile emigqeni yokuvala i-PVC.
Ngenxa yokuhlukaniswa kwe-plasticizer, iphrofayili ingcoliswa yi-rubber strip, ubude bufinyeziwe, isigaba esiphukile sifinyeziwe, futhi izinkinga zokuvala uphawu ezimbi ziningi.Kodwa-ke, ukucutshungulwa kweshabhu elincane lesitayela samaShayina, ukuncishiswa kwezindleko zesitayela samaShayina, kanye nokuncintisana kwentengo ephansi kwesitayela samaShayina ngabakhiqizi bemigqa yokuvala umnyango nefasitela kuye kwaholela ekusetshenzisweni kwamapulasitiki anesici kanye ne-PVC egaywe kabusha, eye yandisa izinkinga zayo yonke. sealing strip industry.Ukuphela komugqa wokuvala we-PVC kuyaqala ukuvela.
I-EPDM EPDM sealing strips Ekuqaleni kuka-2000, izwe lakhipha umyalelo womphakathi wokukhawulela ukusetshenziswa kwemichilo yokuvala ye-PVC ye-polyvinyl chloride, futhi yakhuthaza ukusetshenziswa kwemichilo yokuvala ye-EPDM EPDM kanye nemichilo yokuvala irabha ye-MVQ silicone.I-EPDM sealing strip, umugqa wokuvala wezinga eliphezulu osetshenziswa ezimotweni nasezitimeleni, ekugcineni usumukelwe imboni yezokwakha.
Eqinisweni, yayisetshenziswa kabanzi embonini yomnyango nefasitela ngemuva kuka-2002. Ngaleso sikhathi, iminyango namafasitela angena kancane kancane enkathini yama-alloys e-aluminium ephukile.I-EPDM yafana nemigqa yokuvala yezinga eliphezulu ngenxa yezakhiwo zayo eziphakeme zomzimba kanye nokumelana nokuguga okuhle.Ngo-2011, ehlaselwe uwoyela wamazwe ngamazwe nezinye izici, intengo ye-ethylene propylene yakhuphuka, futhi ubusika bezintambo zokuvala ze-EPDM zafika, ngakho ukuhlakanipha kwamaShayina kwafika, irabha ebuyisiwe yaqala ukusetshenziswa ngobuningi, futhi yonke imakethe yokuvala uphawu yayingaphakathi. isiphithiphithi.Ama-seal amahle kunzima ukuwathola.Umkhiqizi womugqa wokuvala umnyango newindi@门Window气气调板厂家Isifunda esithile e-China siyisisekelo semicu yasekhaya yokuvala, futhi cishe u-70% wemicu yokuvala yebhilidi le-EPDM yaseChina ivela kulesi sifunda.Kukhona umqashi owenza umsebenzi ofanayo kulesi sifunda, futhi u-70% wemicu yezwe yokuvala i-ethylene-propylene ivela kithi.
Umugqa wokuvala irabha we-Silicone awuyona into yakamuva kakhulu yokuvala imichilo, kodwa akunjalo.Irabha ye-Silicone inomlando wamashumi eminyaka e-China.Abakhiqizi bemigqa yokuvala umnyango newindi bayizintandokazi zenjoloba eminyakeni embalwa edlule, futhi bathambile kakhulu.Eminyakeni yamuva, izindleko ziye zehla kancane kancane, futhi kancane kancane ziye zasetshenziswa ekwakheni izimpawu.
Uma kuqhathaniswa nerabha ye-ethylene-propylene, inzuzo yerabha ye-silicone ukuze ivalwe ukuthi inokuncipha okungcono nokusebenza kokuguqulwa kunerabha ye-ethylene-propylene, ngakho-ke ukusebenza kokuvala kuba ngcono, futhi kusukela kumgomo wokulinganisa izinga lokushisa, irabha ye-silicone ingakwazi ukumelana. amazinga okushisa afinyelela ku-300 ° C, futhi amelana nerabha ye-ethylene-propylene.Irabha isezingeni eliphakeme kakhulu lika-180°C.Ngaphansi kwezinga lokushisa elifanayo, impilo yerabha ye-silicone iphindwe kabili kune-ethylene propylene rubber, futhi impilo yesevisi yinde.Futhi ine-inertia enhle kakhulu ye-physiological, engeyona enobuthi, ayinambitheki, irabha ye-silicone nayo inokumelana nokushisa okuhle kakhulu, ukumelana nokubanda, izakhiwo ze-dielectric, ukumelana ne-ozone kanye nokumelana nokuguga komkhathi neminye imisebenzi, umsebenzi ovelele werabha ye-silicone ukusetshenziswa kokushisa okubanzi, ingasebenzisa umkhiqizi womugqa wokuvala umnyango nowamafasitela isikhathi eside ku -60°C (noma izinga lokushisa eliphansi) ukuya +250°C (noma izinga lokushisa eliphakeme).Ngakho-ke irabha ye-silicone iyisinqumo esihle sokwakha izimpawu esikhathini samanje.
Isikhathi sokuthumela: Sep-01-2023