Inqubo yokwelapha ye-polyurethane foam inezigaba eziningana: ukunwetshwa kokuqala, ukomiswa kwendawo, ukuphulukiswa kwangaphakathi, nokuqina okuphelele.
Okokuqala, ukwanda kuqala kungakapheli imizuzwana engu-5-15 yokufafaza, kukhule ngokushesha ngevolumu kuze kube seqophelweni eliphezulu. Lesi sigaba sithinteka kakhulu umswakama wendawo; umswakama ophezulu uholela ekuphenduleni okusheshayo.
Okulandelayo yisiteji sokumisa phezulu, okuvamise ukuthatha imizuzu eyi-10 (egumbini lokushisa lama-degree angama-20 kanye nomswakama ohambelana nama-50%). Kuleli qophelo, ifilimu encane ibumba ebusweni be-foam, okwenza ingasanamathele, kodwa ingaphakathi lihlala lithambile. Lesi yisikhathi esilungile sokulungisa umumo.
Isigaba sokwelapha sangaphakathi sidinga isikhathi eside. Ehlobo (izinga lokushisa elingu-25-30 degree), ukuphulukiswa okuphelele kuthatha cishe amahora angu-4-6; ebusika (izinga lokushisa elingu-0-10 degree), lingase lidlulele emahoreni angu-24 noma ngaphezulu. Isikhathi sejeli, kusukela ekufutheni kuya ekulahlekeni koketshezi, ngokuvamile siyimizuzu emi-5-10, ethonywa yi-catalyst kanye nezinga lokushisa.
Izinto ezithinta isikhathi sokwelapha zihlanganisa izinga lokushisa, umswakama, nogqinsi lwegwebu. Kuwo wonke amadigri angu-10 okwanda kwezinga lokushisa, izinga lokusabela liphindeka kabili. Umswakama ophansi ubambezela ukuphulukiswa; ngakho-ke, ukuchela ngamanzi kungasiza ezindaweni ezomile. Uma ubukhulu be-colloid budlula u-5cm, ukwakheka kokushisa kwangaphakathi kungase kusheshise ukuphulukiswa kodwa futhi kwandise ingozi yokungabi nalutho.
Ezifundeni eziseningizimu ezinomswakama, isikhathi sokuphulukisa sifushane, okwenza kube lula ukusetshenziswa. Ezifundeni ezomile, ezibandayo ezisenyakatho, izinyathelo zokufakelwa ziyadingeka. Ekusetshenzisweni okusebenzayo, kunconywa ukuthi ulinde amahora angu-24 ngaphambi kokusebenza okulandelayo, njengokusika noma ukudweba, ukuqinisekisa amandla.
Ngaphansi kwezimo ezikhethekile, njengokufakwa ngaphansi kwamanzi, isikhathi sokuphulukisa singancishiswa ngoba amanzi abamba iqhaza ngokuqondile ekuphenduleni. Kodwa-ke, kufanele kuphawulwe ukuthi ukwelapha ngokushesha ngokweqile kungathinta ukufana.
Ukuqonda lezi zinqubo kungasiza abasebenzisi balungiselele uhlelo lokusebenza futhi bagweme amaphutha ohlelo lokusebenza.