Bhodhi resandwich imhando yekuvaka inoshandiswa zvakasiyana-siyana ine zvikamu zvitatu: zvikamu zviviri zvekunze (kana kuti kupedzisa) uye chikamu chepakati pakati. Chimwe chezvinhu zvinonyanya kushandiswa ipolyurethane (PU) foam, ine hunhu hwakanaka hwekudzivirira kupisa uye rutsigiro rwechimiro. Chikamu chepakati chinowanzo batanidzwa pakati pezvikamu zvakasimba, izvo zvinowanzo gadzirwa nesimbi, plastiki, kana zvinhu zvakasanganiswa nefiber zvinowedzera simba uye kugara kwenguva refu kwepaneru. Zvinhu zvakakosha mukugadzirwa kwezvikamu zvepakati zvepolyurethane foam zvepaneru dzesandwich ipolyurethane catalysts, zvakaita seMXC-15 neMXC-37.
Sei Polyurethane Foam?
Makori epolyurethane foam anoshandiswa zvakanyanya muma sandwich panels nekuda kwekukosha kwawo kwakanaka kwekudzivirira kupisa (kwakakwirira R-value), hunhu hwawo hwakareruka, uye rutsigiro rwechimiro. Mapaneru aya anowanzo shandiswa mumaindasitiri uko kudzivirira kupisa uye kusimba kwechimiro kwakakosha, senge:
- Kuvaka: Zvinhu zvemukati zvinodzivirira kupisa zvakanaka, zvichiita kuti zvivako zvishandise simba shoma. Semuenzaniso, pataishanda panzvimbo inotonhorera, mapaneru esandwich anodzivirira kupisa kupisa akadzikisa zvakanyanya mari yemagetsi nekuchengetedza tembiricha yakafanana.
- Kuchengetera mufiriji uye Kuchengeta Zvinhu Zvisina Kunaka: Munzvimbo dzinochengeterwa zvinhu zvinotonhora, kudziya kwakanyanya kwakakosha pakuchengetedza tembiricha yakaderera.Kusakwanisa kupisa kwe polyurethane furo kunoita kuti ive sarudzo yakakura yemakamuri anotonhora uye mafiriji.
- Ndege neMarine: Mukushandiswa kwemuchadenga nemugungwa, kuenzana pakati pehuremu nesimba kwakakosha. Mapaneru esandwich ane PU foam cores anopa rutsigiro rwechimiro rwunodiwa uku achideredza huremu.
Basa reZvigadziriso zvePolyurethane
Zvishandiso zvepolyurethane, zvakaita seMXC-15 neMXC-37, zvakakosha mukuita kwefuro panguva yekugadzira macores efuro repolyurethane. Izvi zvinomhanyisa mashandiro emakemikari pakati pepolyol neisocyanate, zvichiita kuti pave nefuro rakagadzikana rine hunhu hwaunoda.
MXC-15: Isocyanurate catalyst isingadhuri uye inoshanda zvakanaka ine mwero wekushandura wakakwira. Yakakodzera kugadzirwa kwepolyol ine viscosity yakawanda, inokurudzira isocyanate reaction, ine activity yakawanda, inonyanya kushandiswa kune PU hard foam, kusanganisira spray foam, PIR foam, PIR foam system.
MXC-37: Inozivikanwawo seDMAEE, kuwedzera DMAEE mupolymer kunoderedza hwema hweamine hunowanikwa mumafuro. Inogona kushandiswa sechinhu chikuru chinobatsira chete kana secocatalyst kuderedza kushandiswa kwemafuro eBDMAEE. Kune vanogadzirisa zvinhu vachishandisa ester, furo rakapfava, furo re microcellular, elastomer, RIM neRRIM, uye mashandisirwo ekufukisa furo akapfava.
Mabhenefiti ePolyurethane Foam muSandwich Panels
- Kudzivirira Kwakanaka Kwazvo (R-Value): Foam yepolyurethane ine imwe yeR-values yepamusoro pa inch kana ichienzaniswa nezvimwe zvinhu zvinodzivirira kupisa. Izvi zvinoita kuti mapaneru esandwich ane PU foam cores ashandise simba zvakanyanya.
- Huremu uye Hunogara kwenguva refu: PU foam cores inoderedza huremu hwese hwesandwich panel pasina kukanganisa simba rayo, zvichiita kuti ive yakakodzera kushandiswa uko kuderedza huremu kuri chinhu chinonyanya kukosha.
- Kudzivirira Hunyoro uye Moto: Foam yepolyurethane inogona kugadzirwa nezvinhu zvinowedzera simba remoto uye kudzivirira hunyoro, zvichivandudza kuchengetedzeka uye kugara kwenguva refu kwema sandwich panels munzvimbo dzakasiyana-siyana.
- Kuwanda uye Simba Zvinogoneka Kugadziriswa: Nekugadzirisa fomura uye zvinhu zvinokonzeresa, vagadziri vanogona kugadzira furo rine huwandu hwakasiyana uye hunhu hwemakanika, zvichibvumira mapaneru esandwich kusangana nezvinodiwa zvekushandisa.
Mhedziso
Zvishandiso zvepolyurethane zvakaita seMXC-15 neMXC-37 zvakakosha pakugadzira foam cores dzepolyurethane dzinoshanda zvakanaka dzema sandwich panels. Zvishandiso izvi zvinoita kuti foam ikwane zvinodiwa, zvakaita sekukosha kwakanyanya kwekudzivirira kupisa, simba rekuvaka, uye kugara kwenguva refu. Kugona kuchinjika kwe polyurethane foam, pamwe chete nekunyatsorongeka kwezvishandiso zvemazuva ano, zvakasimbisa nzvimbo yayo mumaindasitiri akasiyana-siyana kubva pakuvaka kusvika pakufiriji, mota, uye muchadenga. Nekuvandudzwa kwezvishandiso zve catalyst, vagadziri vanogona kuramba vachivandudza mashandiro uye kugara kwenguva refu kwema sandwich panels.
Nguva yekutumira: Zvita-12-2024