1. Ukuchithwa kogwebu.
Ebusika okanye iintsuku ezinemvula, ngenxa yokuba ubushushu bomhlaba otshiziweyo (umzimba wamathambo kunye nobuso obungaphakathi besikhumba sangaphandle, njl. njl.) buphantsi kakhulu, okanye ukufuma emoyeni kuphezulu kakhulu, kukho ukufuma kwindawo yokusebenza. , ukwenzela ukuba ukudibanisa phakathi kwe-foam ephantsi kwe-foam kunye ne-workpiece iyancipha, kwaye kulula ukuwa ngokukhawuleza.
Ukongezelela, xa indawo edibeneyo, i-skeleton ineoli, uthuli, okanye ukungalingani kwezithako (Impahla ininzi kakhulu), iya kunciphisa ukunamathela kwe-foam layer.
Amanyathelo okusombulula ami ngolu hlobo lulandelayo: ngaphambi kokutshiza ugwebu, yenza umsebenzi olungileyo wonyango lomphezulu lwamathambo kunye nesikhumba, yakha ngomhla wemvula ngokufuma okuphezulu, zama ukomisa ukufuma kumphezulu womsebenzi otshiziweyo, ukutshisa ekrwada. izixhobo ebusika, kwaye preheat umphezulu coated kunye skeleton ukuba kunokwenzeka; ukuba kuyimfuneko, ukwandisa umlinganiselo wecandelo B (okanye unciphise umlinganiselo wecandelo A) ukukhawuleza ukuphendula kunye nokuphucula ukubambelela.
2. Ukuncipha kwamagwebu.
I-Foam shrinkage ibhekisela kwinto yokuba umzimba we-foam uyancipha ujikeleze umzimba we-foam emva kokwenza, ukuze kubekho umsantsa omkhulu phakathi komzimba we-foam kunye ne-skeleton yomzimba, echaphazela amandla okudibanisa kunye nokutywinwa, kwaye kulula ukuwa.
Isizathu kukuba ngexesha lokwakhiwa ebusika, i-viscosity yezinto ezibonakalayo iyanda, i-fluidity iba yimbi ngakumbi, kwaye i-foam ivelisa i-volume shrinkage kwinkqubo yokwenza.
Isisombululo kukutshisa izinto eziluhlaza kunye nomoya, kwaye ngokufanelekileyo ukwandisa izinga lokuhamba komoya (isantya) ukwenza umxube wezinto eziphathekayo kunye nokukhawuleza isantya sokuphendula.
3. Iqamza elifileyo.
Amaqamza afileyo athetha ukuba ugwebu olwenziweyo luxinene kakhulu okanye alunagwebu.
Oku kungenxa yokungabikho kwe-ejenti yogwebu kwizinto eziluhlaza, okanye ubushushu buphantsi kakhulu.
Isisombululo kukufudumala izinto eziluhlaza, ukwandisa umthamo womoya, ukulungelelanisa ifomula, ukwandisa umthamo we-catalyst kunye ne-foam, ukwenzela ukunciphisa ixesha lokuphendula.
Ukuba kukho amaqamza afileyo kulwakhiwo kwiqondo lobushushu eliqhelekileyo, kusenokuba kungenxa yokuba i-A igcinwe ixesha elide kwaye i-ejenti yogwebu iye yajika ibe ngumphunga, ngoko ke inxalenye ye-ejenti yogwebu kufuneka yongezwe kwizinto A.
4. Igwebu libukhali kakhulu.
Oku kubangelwe ikakhulu kumlinganiselo ongafanelekanga wemathiriyeli ekrwada kunye nokusetyenziswa ngokugqithisileyo kwemathiriyeli yecandelo B.
Isisombululo kukunciphisa izinga lokuhamba kwezinto B ngokufanelekileyo ukwenzela ukunciphisa inani le-isocyanate.
5. Igwebu lithambile kakhulu.
Ngokuchasene ne-brittleness ye-foam, oku kuhambelana ikakhulu nomlinganiselo ophantsi wezinto eziphathekayo wecandelo B, ngoko ngokufanelekileyo ukwandisa inani lecandelo B (okanye ukunciphisa izinto zecandelo A).
