Unyanzvi Zvimiro zveRigid Foam Polyurethane Munda Kupfapfaidza
Rigid foam polyurethane (PU) insulation material i polymer ine inodzokororwa chimiro chechikamu che carbamate segment, inoumbwa nekuita kwe isocyanate uye polyol. Nekuda kwekunaka kwayo kupisa kwekupisa uye kuita kwemvura, inowana kushandiswa kwakakura mumadziro ekunze uye denga rekuvhara, pamwe nekutonhora kwekuchengetera, zviyo zvekuchengetera zviyo, makamuri ekuchengetera, mapaipi, magonhi, mahwindo nedzimwe nzvimbo dzakakosha dzekupisa.
Parizvino, kunze kwekuvhara denga uye kushandiswa kwekudzivirira mvura, inoshandawo zvakasiyana-siyana senge inotonhora yekuchengetera nzvimbo uye yakakura kusvika yepakati-saizi kemikari kuiswa.
Kiyi tekinoroji yekuomarara foam polyurethane spray kuvaka
Kubata kwehunyanzvi hwekupfapfaidza foam polyurethane kunoisa matambudziko nekuda kwezvinhu zvinogona kuitika semaburi efuro asina kuenzana. Izvo zvakakosha kusimudzira kudzidziswa kwevashandi vekuvaka kuitira kuti vagone kubata nemazvo nzira dzekupfapfaidza uye nekuzvimiririra kugadzirisa matambudziko ehunyanzvi akasangana panguva yekuvaka. Iwo ekutanga tekinoroji matambudziko mukupfapfaidza kuvaka anonyanya kutariswa pane zvinotevera zvinhu:
Kudzora pamusoro pekuchena nguva uye atomization maitiro.
Kuumbwa kwe polyurethane foam kunosanganisira matanho maviri: kupupa uye kurapa.
Kubva padanho rekusanganisa kusvika kuwedzera kwefuro vhoriyamu kwapera - maitiro aya anozivikanwa sekupupa. Munguva iyi, kufanana mukugovera gomba rebubble kunofanirwa kutariswa kana huwandu hwakakura hweiyo reactive hot ester inoburitswa muhurongwa panguva yekufirita mabasa. Kufanana kwebubble kunonyanya kuenderana nezvinhu zvakaita se:
1. Material ratio kutsauka
Pane yakakura density musiyano pakati pemapubhu anogadzirwa nemuchina maringe neawo anogadzirwa nemaoko. Kazhinji, muchina-yakagadziriswa zvinhu zviyero ndeye 1: 1; zvisinei nekuda kwekusiyana kwemazinga eviscosity pakati pezvichena zvevagadziri vakasiyana - chaiwo mareshiyo anogona kusaenderana neaya akatarwa mareshiyo zvinotungamira kune mutsauko mukuwanda kwefuro zvichibva pakunyanya kushandiswa kwechichena kana chitema.
2.Ambient tembiricha
Polyurethane foams inonzwa zvakanyanya kushanduka kwekushisa; maitiro avo ekupupa anotsamira zvakanyanya pakuwanikwa kwekupisa kunobva kune ese magadzirirwo emakemikari mukati meiyo system pachayo pamwe nekupihwa kwezvakatipoteredza.
Kana tembiricha yakadzika yakakwira zvakakwana kugovera kupisa kwezvakatipoteredza - inomhanyisa kukurumidza kuita zvichikonzeresa kuti furo rakawedzerwa rizere nekuenderana pamusoro-kusvika-pakati densities.
Sezvineiwo pakudzikira tembiricha (semuenzaniso, pasi pe18°C), kumwe kupisa kwekuita kunoparara munzvimbo kuchikonzera nguva refu yekurapa pamwe chete nekuwedzera kwekudzikira kwekuumbwa kwemitengo nokudaro zvichikwidza mitengo yekugadzira.
3.Mhepo
Panguva yekupfapfaidza, kumhanya kwemhepo kunofanira kugara kuri pasi pe5m/s; kudarika chikumbaridzo ichi chinobvisa kupisa kunokonzerwa nekuita kunokanganisa kubuda furo nekukurumidza uku zvichiita kuti nzvimbo dzechigadzirwa dziite brittle.
4.Base tembiricha & mwando
Base madziro tembiricha inonyanya kupesvedzera kupupuma kwepolyurethane panguva yekushandisa maitiro kunyanya kana ambient & base wall temps yakadzikira - kukurumidza kunyura kunoitika mushure mekuputira kwekutanga kudzikisa goho rezvinhu zvese.
Naizvozvo kudzikisira nguva dzekuzorora masikati panguva yekuvaka pamwe chete nehurongwa hwekuronga kunova kwakakosha pakuona kwakaringana akaomesesa foam polyurethane kuwedzera mitengo.
Rigid Polyurethane Foam inomiririra chigadzirwa chepolymer chakagadzirwa kuburikidza nekuita pakati pezvikamu zviviri - Isocyanate & yakasanganiswa Polyether.
Isocyanate zvikamu zvinopindirana nyore nyore nemvura inogadzira urea zvisungo; kuwedzera kweurea bond yemukati kunoita kuti furo riite brittle uku richiderera kunamatira pakati pawo & substrates nekudaro zvinoda yakachena yakaoma substrate nzvimbo isina ngura / huruva / kunyorova / kusvibiswa kunyanya kudzivirira mazuva ekunaya kwemvura uko kuvapo kwedova / chando kunoda kubviswa kunoteverwa nekuomesa usati waenderera mberi.
Nguva yekutumira: Jul-16-2024