Pane zvinhu zvakawanda zvinokanganisa kunaka kwe polyurethane spray foam.Zvadaro, tichatarisa pane zvinomwe zvinhu zvikuru zvinokanganisa kunaka kwayo.Kana iwe uchinzwisisa zvinotevera zvinhu zvakakosha, iwe unozogona kudzora kunaka kwe polyurethane spray foam zvakanaka.

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Kana paine guruva, mafuta, hunyoro uye kusaenzana pamusoro pemadziro ekunze, zvinokanganisa zvakanyanya kunamatira, kusungirira uye kupfava kwefuro ye polyurethane kune iyo insulation layer.Naizvozvo, zvinodikanwa kuve nechokwadi kuti madziro emadziro akachena uye akati sandara usati wamwaya.

2. Pesvedzero yehunyoro pane aerosol inopupuma.

Sezvo furo rinoputika rinowanzoita kemikari kuita nemvura, zviri muchigadzirwa zvinowedzera, izvo zvinowedzera kuwedzera brittleness ye polyurethane furo uye zvinokanganisa zvakanyanya kunamira kweyakaomarara polyurethane furo pamusoro pemadziro.Naizvozvo, madziro ekunze ezvivakwa anopfapfaidzwa neyakaomeswa polyurethane furo isati yavakwa, uye zviri nani kukwesha dhizaini-uchapupu hwe polyurethane primer (kana madziro akaoma zvachose muzhizha, nhanho inogona kuponeswa).

3. Kufurirwa nemhepo.

Polyurethane furo inoitwa kunze.Kana mhepo inomhanya ichipfuura 5m/s, kurasikirwa kwekupisa mukupupuma kwakakura kwazvo, kurasikirwa kwezvinhu zvakakura zvakanyanya, mutengo unowedzera, uye madonhwe eatomi ari nyore kubhururuka nemhepo.Kusvibiswa kwezvakatipoteredza kunogona kugadziriswa nemaketeni emhepo.

4. The pesvedzero ambient tembiricha uye madziro tembiricha.

Iyo yakakodzera tembiricha yemhando yekupfapfaidza polyurethane furo inofanira kuva 10 ° C-35 ° C, kunyanya tembiricha yemadziro emadziro ane simba guru pakuvaka.Kana tembiricha yakadzikira kupfuura 10, furo iri nyore kubvisa madziro uye kuputika, uye furo density inowedzera zvakanyanya uye inoparadza zvigadzirwa;kana tembiricha yakakwira kupfuura 35 ° C, kurasikirwa kweiyo furo agent yakakurisa, izvo zvinozokanganisawo kuburitsa furo.

5.Kupfapfaidza ukobvu.

Paunenge uchipfapfaidza rigid polyurethane foam, ukobvu hwekupfapfaidza hune simba guru pamhando uye mutengo.Kana polyurethane ichipfapfaidza yekunze madziro ekudzivirira kuvaka, ukobvu hweiyo insulation layer haina kukura, kazhinji 2.03.5 cm, nekuda kwekunaka kwekuvharisa kwe polyurethane furo.Panguva ino, ukobvu hwepfapfaidzo haufanire kudarika 1.0 cm.Ita shuwa kuti pamusoro pechidzitiro chakapfapfaidzwa chakati sandara.Mutsetse unogona kudzorwa muhuwandu hwe1.0-1.5 cm.Kana ukobvu hweaerosol hwakanyanya, kuenzana kuchave kwakaoma kudzora.Kana ukobvu hweaerosol hwakanyanya kudiki, kuwanda kweiyo insulation layer ichawedzera, kutambisa zvigadzirwa uye kuwedzera mari.

6. Pfaya chinhambwe uye makona zvinhu.

General yakaoma furo kupfapfaidza basa papuratifomu ari scaffolding kana kuturika tswanda, kuwana yakanaka furo unhu, pfuti kuchengetedza imwe kona uye spraying kure kunokosha zvakare.Kona chaiyo yepfuti yekupfapfaidza inowanzodzorwa pa70-90, uye chinhambwe chiri pakati pepfuti yekupfapfaidza nechinhu chiri kupfapfaidzwa chinofanira kuchengetwa mukati me 0.8-1.5m.Naizvozvo, polyurethane kupfapfaidza kuvaka kunofanirwa kuve neruzivo rwevashandi vekuvaka kuti vaite kuvaka, zvikasadaro zvinokanganisa kunaka uye kuwedzera mutengo.

7.Interface treatment factor ye rigid polyurethane foam insulation layer.

Mushure mekupfapfaidza iyo yakaoma polyurethane furo kune inodiwa ukobvu, iyo interface kurapwa inogona kuitwa mushure meinenge 0.5h, kureva bhurasha iyo polyurethane interface mumiririri.Iyo general interface mumiriri haifanirwe kuiswa kweanopfuura 4h (inogona kuchengetwa kana pasina chiedza chezuva).Izvi zvinodaro nekuti mushure me 0.5h yekupupa, kusimba kwefuro rakaomarara re polyurethane rinosvika kupfuura 80% yesimba raro rakanyanya uye chiyero chekuchinja saizi isingasviki 5%.Iyo yakaoma polyurethane foam yatove mune yakagadzikana mamiriro.uye inofanira kuchengetedzwa nokukurumidza sezvinobvira.Kunamira kweiyo leveling layer kunogona kuitwa mushure mekunge iyo polyurethane interface agent yaiswa kwemaawa makumi maviri nemana uye yakazogadzika.

Zvakakosha kubhadhara kune zvinhu zvinokanganisa kunaka kwe polyurethane spray foam panguva yekuvaka uye kuedza kudzivisa kurasikirwa kusingakoshi.Vatengi vanorayirwa kuti vasarudze timu yehunyanzvi yekuvaka kuti vaone kufambira mberi kwekuvaka uye kunaka kweprojekiti.