Mapaneru esandwich imhando yemazuva ano yekuvaka inoshandiswa zvakanyanya mukuvaka nekushandiswa kwezvivakwa nekuda kwekudzivirira kwavo kupisa, hunhu hwavo hwakareruka, uye simba remuchina. Chinhu chikuru chinoshandiswa kuzadza mapaneru aya chinoita basa rakakosha pakuona mashandiro awo. Chimwe chezvinhu zvinonyanya kushandiswa pakuzadza mapaneru esandwich ipolyurethane foam.
Foam yePolyurethane: Chinhu Chinonyanya Kufarirwa
Foam yepolyurethane isarudzo yakakurumbira yekuzadza sandwich panel nekuda kwehunhu hwayo hwepamusoro hwekudzivirira kupisa, hunhu hwayo hwakareruka, uye kusimba kwayo. Imhando yepolymer inogadzirwa nekuita diisocyanates ne polyols, zvichikonzera furo rinogona kugadziriswa zvichienderana nehuwandu hwakati uye zvinodiwa nesimba. Kuchinja-chinja uku kunoita kuti furo yepolyurethane ive yakanakira kushandiswa kwakasiyana-siyana, kubva kuzvivakwa zvekugara kusvika kumaindasitiri.
Zvivakwa zvekudzivirira kupisa
Chimwe chezvikonzero zvikuru nei polyurethane foam ichifarirwa pakuzadza sandwich panel ndechekuti ine hunhu hwakanaka hwekudzivirira kupisa. Polyurethane foam ine thermal conductivity yakaderera, zvinoreva kuti inoderedza kupisa pakati penzvimbo dzemukati nedzekunze. Hunhu uhwu hwakakosha pakuchengetedza simba rakanaka muzvivakwa, sezvo huchibatsira kuchengetedza nzvimbo dzemukati dzichidziya munguva yechando uye dzichitonhorera muzhizha, nokudaro zvichideredza kudiwa kwekupisa zvakanyanya nekutonhorera.
Simba Rakareruka uye reMaumbirwo
Pasinei nehunhu hwayo hwakareruka, furo repolyurethane rinopa simba guru rekuvaka kuma sandwich panels. Maumbirwo emasero efuro iri anobatsira kuti rikwanise kutakura mutoro wakawanda uye rirambe kudzvanywa. Kusanganiswa uku kwekureruka nesimba kunobatsira zvikuru mukuvaka, uko kuderedza huremu hwezvinhu zvekuvaka kunogona kutungamira mukuderedza mari yekufambisa nekuisa, pasina kukanganisa hunhu hwechivako.
Kuramba Moto uye Kugara Kwenguva refu
Mafuro emazuva ano epolyurethane anoshandiswa mumapaneru esandwich anowanzo gadzirwa kuti awedzere kudzivirira moto, achisangana nezvinodiwa zvakasimba zvekuchengetedza. Pamusoro pezvo, furo repolyurethane rinogara kwenguva refu uye rinodzivirira hunyoro, makemikari, uye kuora kwezvipenyu, zvichiita kuti mapaneru esandwich agare kwenguva refu. Kugara kwenguva refu uku kunoita kuti mapaneru esandwich akazadzwa nepolyurethane ave sarudzo yakavimbika kune mamiriro ekunze akasiyana-siyana nemamiriro ekunze.
Mashandisirwo muMaindasitiri Akasiyana-siyana
Kushandiswa kwakasiyana-siyana kwefuro repolyurethane sechishandiso chekuzadza kunoita kuti zvisashande zvakanyanya kupfuura zvivakwa zvemazuva ano. Mapanera esandwich ane polyurethane cores anoshandiswa munzvimbo dzinotonhorera, mumotokari dzinochengetwa mufiriji, uye kunyangwe mukuvaka makamuri akachena nenzvimbo dzakagadziriswa uko kunodiwa kudzora tembiricha nehunyoro zvakanyanya.
Mhedziso
Mukupedzisa, polyurethane foam ndiyo inonyanya kufarirwa pakuzadza sandwich panel nekuda kwekupisa kwayo kwakanyanya, chimiro chayo chakareruka asi chakasimba, inodzivirira moto, uye inogara kwenguva refu. Kugona kwayo kushandura huremu hwayo nesimba rayo kunoita kuti ive yakakodzera kushandiswa kwakasiyana-siyana, kubva kuzvivakwa zvekugara nekutengeserana kusvika kumaindasitiri akasarudzika. Semutengesi we polyurethane catalyst, tinoziva basa rakakosha rinoitwa ne polyurethane foam yepamusoro mukusimudzira mashandiro uye kushanda zvakanaka kwesandwich panels, uye takazvipira kutsigira kuenderera mberi kwekuvandudzwa nekuvandudzwa kwezvinhu izvi zvakakosha zvekuvaka.
Nguva yekutumira: Chikumi-05-2024