Imicu yokutywina ye-PVC iye yaba yintandokazi yocango lwentsimbi yeplastiki kunye nemicu yokutywina yefestile kuba ayiqhekeki kwaye kulula ukuyidibanisa. Kodwa kuphela iminyaka emi-2-3, ingxaki yavela. Ukwahlula iiplastiki zePVC, ingxaki enzima yoshishino lwamazwe ngamazwe, ibonakaliswe ngokucacileyo kwimicu yokutywina ye-PVC.
Ngenxa yokuhlukana kwe-plasticizer, iphrofayili ingcoliswa ngumgca we-rubber, ubude bufutshane, icandelo eliphukileyo lifutshane, kwaye iingxaki zokutywinwa okungahambi kakuhle zininzi. Nangona kunjalo, ukusetyenzwa kweworkshop encinci yaseTshayina, ukuncipha kweendleko zesiTshayina, kunye nokhuphiswano lwexabiso eliphantsi lwesiTshayina ngomnyango kunye nabavelisi befestile yokutywina kuye kwakhokelela ekusetyenzisweni kweplastiki eneziphene kunye ne-PVC esetyenzisiweyo, eye yandisa iingxaki zalo lonke ishishini lomtya wokutywina. Isiphelo sePVC sokutywina siqala ukubonakala.
Imichilo yokutywina ye-EPDM EPDM Ekuqaleni kwe-2000, ilizwe lakhupha umyalelo woluntu wokukhawulela ukusetyenziswa kwe-polyvinyl chloride ye-PVC yokutywina imicu, kwaye yakhuthaza ukusetyenziswa kwe-EPDM EPDM imicu yokutywina kunye nemicu yokutywina ye-silicone ye-MVQ. Umgca wokutywina we-EPDM, umtya wokutywina womgangatho ophezulu osetyenziswa kwiimoto kunye noololiwe, ekugqibeleni wamkelwe lishishini lokwakha.
Enyanisweni, yayisetyenziswa ngokubanzi kwishishini lomnyango kunye nefestile emva kwe-2002. Ngelo xesha, iingcango kunye neefestile zangena ngokuthe ngcembe kwixesha le-aluminium alloys ephukileyo. I-EPDM iye yafana nemigca yokutywina yomgangatho ophezulu ngenxa yeempawu zayo eziphezulu zomzimba kunye nokumelana nokuguga okulungileyo. Kwi-2011, echatshazelwa yi-oyile yamazwe ngamazwe kunye nezinye izinto, ixabiso le-ethylene propylene lanyuka, kwaye ubusika be-EPDM ukutywinwa kwemicu beza, ngoko ubulumko baseTshayina beza, irabha ebuyiselweyo yaqala ukusetyenziswa ngobuninzi, kwaye yonke imarike yomgca wokutywina yayinesiphithiphithi. Amatywina amahle kunzima ukufumana. Umcu wokutywina womnyango kunye nefestile@门Window气气调板厂家Isithili esithile eTshayina sisiseko semicu yokutywina yasekhaya, kwaye malunga ne 70% yemicu yokutywina yesakhiwo yase China ye EPDM ivela kule dolophu. Kukho umphathi kumsebenzi ofanayo kule dolophu, kwaye i-70% yelizwe lokutywina i-ethylene-propylene strips ivela kuthi.
Umtya wokutywina werabha ye-silicone ayiyonto yamva nje yokutywina, kodwa akunjalo. Irabha yeSilicone inembali yamashumi eminyaka eTshayina. Abavelisi bemigca yokutywina yocango kunye neefestile ngokwenene zezona zithandwayo zerabha kule minyaka imbalwa idlulileyo, kwaye zibuthathaka kakhulu. Kwiminyaka yakutshanje, iindleko ziye zancipha ngokuthe ngcembe, kwaye ziye zasetyenziswa ngokuthe ngcembe ekwakheni amatywina.
Xa kuthelekiswa nerabha ye-ethylene-propylene, inzuzo yerabha ye-silicone yokutywinwa kukuba ine-shrinkage engcono kunye nokusebenza kwe-deformation kunerabha ye-ethylene-propylene, ngoko ke ukusebenza kokutywinwa kubhetele, kwaye ukusuka kumgaqo wokulinganisa ubushushu bexesha, irabha ye-silicone inokumelana nobushushu ukuya kwi-300 ° C, kunye ne-ethylene-resistant-rubber. Irabha ikwiqondo eliphezulu le-180°C. Ngaphantsi kobushushu obufanayo, ubomi berabha ye-silicone buphindwe kabini kunerabha ye-ethylene propylene, kwaye ubomi benkonzo bude. Kwaye ine-inertia ebalaseleyo yomzimba, engeyiyo eyityhefu, engenancasa, irabha abicah nayo inokumelana nobushushu obubalaseleyo, ukumelana nokubanda, iipropati ze-dielectric, ukuxhathisa i-ozone kunye nokumelana nokuguga kwe-atmospheric kunye neminye imisebenzi, umsebenzi obalaseleyo werabha ye-silicone kukusetyenziswa kobushushu obubanzi, unokusebenzisa ucango kunye nomvelisi wefestile yokutywina ixesha elide kwi -60 ° C (okanye ubushushu obungaphantsi kwe-250 ° C) ukuya (okanye ubushushu obuphantsi kwe-250 ° C). Ke irabha ye-silicone lukhetho olufanelekileyo lokwakha izitywina kwixesha langoku.
Ixesha lokuposa: Sep-01-2023