Izvo zvinonamira / zvisimbiso zvemotokari zvinoiswa muzvikamu zvinoenderana nezvikamu zvekushandisa, uye zvinogona kukamurwa kuita zvikamu zvishanu: zvinonamira zvemuviri wemotokari, zvinonamira zvemukati zvemotokari, zvinonamira zvemotokari injini chassis, zvinonamira zvezvikamu zvemotokari, uye zvinonamira zvekugadzira mota maitiro.Zvinofungidzirwa kuti panosvika gore ra2020, kudiwa kwese kwemhando dzakasiyana dzekubatanidza nekuisa chisimbiso muindasitiri yemotokari yeChina kuchapfuura 100,000 matani, ayo anonamira epolyurethane ndiyo inonyanya kukosha mhando yeglue.Mumakore achangopfuura, kudiwa kwepagore kwema polyurethane adhesives muChina Kuwedzera paavhareji chiyero che30%.
Isu tichagovana ruzivo rwekutanga rwe windshield auto girazi PU sealant muchikamu chino.
Icho chinhu chimwe-chikamu mwando kurapa polyurethane adhesive.
Maitiro ekubatanidza zvakananga girazi remota girazi kumutumbi wemotokari akatanga muUnited States muma1960s.Imwe-chikamu chinorapa mwando-inorapa PU adhesive yakatanga kugadzirwa neESSEX Chemical Company yekuUnited States mukutanga 1970s uye yakabudirira kushandiswa kuGeneral Motors yekuUnited States.Muna 1976, Audi Motors yakaishandisawo paAudi C2.Mushure mezvo, maJapan uye vamwe vagadziri vemotokari vekuEurope vakatevedzana vatora yakananga nzira yekubatanidza yegirazi regirazi.Nekuda kwekuvaka kuri nyore uye kushandiswa kwemakanika saizi, inodarika 95% yehwindifendi yepasirese uye nepadivi girazi remahwindo zvakasungwa uchishandisa inonamatira.
Imwe-chikamu chemvura-inorapa PU adhesive ine inoshanda -NCO mapoka, ayo anogona kuita nekutsvaga hunyoro pamusoro pekunamatira kana mumhepo kurapa.Chimwe-chimwe chikamu chinoporesa PU windshield girazi glue inodiwa kuve nehanya nekunyorova, kukurumidza kurapa, uye kuchengetedza yakanakisa elasticity mushure mekurapa, uye inodiwa kuti ive imwechete-yakarongedzerwa nekugadzikana kwakanaka kwekuchengetedza.Icho chigadzirwa chine yepamusoro tekinoroji yemukati mune mota anonamira, uye zvakare ndiyo inonyanya kushandiswa akasiyana muChina mota yePU adhesives.
Kutora iyi girazi yekubatanidza uye yekuisa chisimbiso tekinoroji inogona kuomesa girazi regirazi uye muviri wemotokari mune yakazara, kuwedzera kuomarara kwemuviri wemotokari uye kugona kuramba torsion, uye kuve nechokwadi chekuisa chisimbiso.Chisungo 212 cheUS Federal Automobile Safety Standard (FMVSS) chinoti kana mota yadhumhana nekongiri mudhuri nekumhanya kwe50km/h, bonding kuperera kwewindshield kunofanirwa kunge kuri pamusoro pe75%.Parizvino, United States, Japan, Germany, France, etc. uye nyika yedu dzinenge dzese dzinotora nzira iyi mukuiswa kwegirazi regirazi remota, uye panguva imwecheteyo, mazhinji egirazi uye hwindo reparutivi girazi remotokari dzinotakura dzinotorawo. nzira yekubatanidza.
Imwe-chikamu kunyorova-inorapa PU sealant inokodzera porous surface bonding.Kune asiri-porous nzvimbo segirazi nesimbi, inowanzoda kushandiswa pamwe chete negirazi activator, girazi primer, uye pendi primer.Kuti uve nechokwadi chekushanda kwakavimbika pakati pegirazi regirazi uye muviri wemotokari, zvinodikanwa kupfekedza primer pane girazi pamusoro, izvo zvinogona kuvandudza kusimba kwekubatanidza kwePU adhesive pane girazi layer.
Nguva yekutumira: Nov-09-2021