Isilinganiso se-Polyol ne-isocyanate:

I-Polyol inenani eliphezulu le-hydroxyl kanye nesisindo esikhulu samangqamuzana, okuzokwandisa ukuminyana okuhlanganayo futhi kusize ukuthuthukisa ukuminyana kwegwebu. Ukulungisa inkomba ye-isocyanate, okungukuthi, isilinganiso se-molar ye-isocyanate ne-hydrogen esebenzayo ku-polyol, kuzokwandisa izinga lokuxhumanisa futhi kwandise ukuminyana. Ngokuvamile, inkomba ye-isocyanate iphakathi kuka-1.0-1.2.

 

Ukukhethwa kanye nomthamo we-ejenti ekhiqiza amagwebu:

Uhlobo nomthamo we-ejenti ekhihliza ugwebu kuthinta ngqo izinga lokunwetshwa komoya kanye nokuminyana kwebhamuza ngemva kokunamagwebu, bese kuthinta ukushuba koqweqwe. Ukunciphisa umthamo we-ejenti yokugwedla ngokomzimba kunganciphisa i-porosity yegwebu futhi kwandise ukuminyana. Isibonelo, amanzi, njengekhemikhali ekhipha amagwebu, ahlangana ne-isocyanate ukuze akhiqize isikhutha. Ukwandisa inani lamanzi kuzonciphisa ukuminyana kwegwebu, futhi inani layo lokwengeza lidinga ukulawulwa ngokuqinile.

 

Inani le-catalyst:

I-catalyst kufanele iqinisekise ukuthi ukusabela kwegwebu kanye nokusabela kwejeli enqubweni yokukhipha amagwebu kufinyelela ibhalansi eguqukayo, ngaphandle kwalokho ukugoqa kwebhamuza noma ukushwabana kuzokwenzeka. Ngokuhlanganisa inhlanganisela ye-alkaline ephakeme kakhulu ye-amine enomphumela onamandla we-catalytic ekuphenduleni okukhihliza amagwebu kanye nomphumela onamandla kakhulu ekuphenduleni kwejeli, i-catalyst efanelekile ohlelweni lokuzikhumba ingatholakala.

 

Ukulawula izinga lokushisa:

Izinga lokushisa lesikhunta: Ukuqina kwesikhumba kuzokwanda njengoba izinga lokushisa lesikhunta lincipha. Ukwenyusa izinga lokushisa kwesikhunta kuzosheshisa izinga lokusabela, elivumela ukwakha isakhiwo esiminyene, ngaleyo ndlela kwandise ukuminyana, kodwa izinga lokushisa eliphakeme kakhulu lingabangela ukusabela ukuba kungalawuleki. Ngokuvamile, izinga lokushisa lesikhunta lilawulwa ku-40-80 ℃.

 

Izinga lokushisa lokuvuthwa:

Ukulawula izinga lokushisa lokuguga liye ku-30-60 ℃ kanye nesikhathi ukuya ku-30s-7min kungathola ibhalansi elungile phakathi kwamandla okudiliza nokusebenza kahle kokukhiqiza komkhiqizo.

 

Ukulawula ukucindezela:

Ukwandisa ingcindezi ngesikhathi senqubo yokugwedla kungavimbela ukunwetshwa kwamabhamuza, kwenze ukwakheka kwegwebu kuhlangane, futhi kwandise ukuminyana. Kodwa-ke, ukucindezela ngokweqile kuzokwandisa izidingo zesikhunta futhi kwandise izindleko.

 

Isivinini esinyakazayo:

Ukwandisa isivinini esishukumisayo ngendlela efanele kungenza izinto ezingavuthiwe zixubane ngokulinganayo, zisabele ngokugcwele, futhi kusize ukwandisa ukuminyana. Kodwa-ke, isivinini esisheshayo esishukumisayo sizokwethula umoya omningi, okuholela ekwehleni kokuminyana, futhi ngokuvamile kulawulwa ku-1000-5000 rpm.

 

I-coefficient yokugcwalisa ngokweqile:

Inani lomjovo lengxube yokusabela yomkhiqizo wokuzikhipha kufanele libe likhulu kakhulu kunenani lomjovo lokukhihliza amagwebu kwamahhala. Kuye ngomkhiqizo kanye nesistimu yezinto ezibonakalayo, i-coefficient yokugcwalisa ngokweqile ngokuvamile i-50% -100% ukugcina ukucindezela okuphezulu kwesikhunta, okuhambisana nokucwiliswa kwe-ejenti enegwebu kungqimba lwesikhumba.

 

Isikhathi sokulinganisa isendlalelo sesikhumba:

Ngemuva kokuthi i-polyurethane enegwebu ithululelwe kumodeli, lapho ubuso bulungiswa isikhathi eside, isikhumba siyaqina. Ukulawula okunengqondo kwesikhathi sokulinganisa ngemva kokuthulula nakho kungenye yezindlela zokulawula ukushuba kwesikhumba.