Ungayikhusela njani i-cavitationumatshini wepolyurethane ugwebu
1. Lawula ngokungqongqo umlinganiselo kunye nomthamo wenaliti yesisombululo sokuqala
Lawula umlinganiselo wezinto ezimnyama, i-polyether edibeneyo kunye ne-cyclopentane.Ngaphantsi kwemeko yokuba umthamo we-injection iyonke uhlala ungatshintshi, ukuba umlinganiselo wezinto ezimnyama zikhulu kakhulu, i-cavitation iya kubonakala, ukuba umlinganiselo wezinto ezimhlophe zikhulu kakhulu, kuya kuvela ama-bubbles athambileyo, ukuba umlinganiselo we-cyclopentane mkhulu kakhulu, iibhubhu. iya kuvela, kwaye ukuba umlinganiselo umncinci kakhulu, i-cavitation iya kuvela.Ukuba umlinganiselo wezinto ezimnyama kunye ezimhlophe azikho ukulinganisela, kuya kubakho ukuxuba okungafaniyo kunye ne-shrinkage ye-foam.

Isixa senaliti kufuneka sisekelwe kwiimfuno zenkqubo.Xa isixa senaliti singaphantsi kwemfuneko yenkqubo, ukuxinana kwe-foam buya kuba sezantsi, amandla aya kuba aphantsi, kwaye isiganeko sokuzalisa i-vacuoles edibeneyo iya kwenzeka.Xa umthamo wenaliti uphezulu kuneemfuno zenkqubo, kuya kubakho ukwanda kweqamza kunye nokuvuza, kwaye ibhokisi (ucango) luya konakala.
2. Ulawulo lobushushu beumatshini wepolyurethane ugwebusisitshixo sokusombulula i-cavitation
Xa iqondo lobushushu liphezulu kakhulu, impendulo inobundlobongela kwaye kunzima ukuyilawula.Kulula ukubonakala ukuba ulwelo lweqamza olufakwe kwibhokisi enkulu alufani.I-bubble liquid injected ekuqaleni iye yafumana i-chemical reaction, kwaye i-viscosity iyanda ngokukhawuleza, kwaye i-bubble liquid injected kamva ayikaphenduli.Ngenxa yoko, ulwelo lwe-bubble olutofwe kamva alunakutyhala ulwelo lweqamza olutofwe kuqala ukuya kumphambili wenkqubo yogwebu yebhokisi, okukhokelela kwi-cavitation yendawo ebhokisini.
Izinto ezimnyama nezimhlophe kufuneka ziphathwe kwiqondo lobushushu elingaguqukiyo phambi kokuba ugwebu, kwaye ubushushu obunogwebu kufuneka bulawuleke kwi-18 ~ 25℃.Ubushushu beziko lobushushu besixhobo sokufudumeza kufuneka bulawulwe kwi-30 ~ 50 ℃, kwaye ubushushu bokubumba obugwebu kufuneka bulawuleke phakathi kwe-35 ~ 45 ℃
Xa ubushushu besikhunta esinegwebu siphantsi kakhulu, umbane wenkqubo ye-foam-liquid ihlwempuzekile, ixesha lokunyanga lide, ukusabela akuphelelanga, kwaye i-cavitation iyenzeka;xa ubushushu besikhunta esinamagwebu siphezulu kakhulu, i-liner yeplastiki ikhubazeka ngenxa yobushushu, kwaye inkqubo yolwelo lwamagwebu iphendula ngamandla.Ke ngoko, iqondo lobushushu lesikhunta esinamagwebu kunye nobushushu obukhoyo besithando somlilo kufuneka silawulwe ngokungqongqo.
Ngokukodwa ebusika, isikhunta esinegwebu, isithando somlilo esitshisayo, isithando somlilo esinamagwebu, ibhokisi kunye nomnyango kufuneka zifudunyezwe ngaphezu kwemizuzu engama-30 rhoqo kusasa xa kuvulwa umgca.Emva kogwebu ixesha elithile ehlotyeni, inkqubo yogwebu kufuneka ipholiswe phantsi.

Ulawulo loxinzelelo lwePolyurethane Foaming Machine
Uxinzelelo lomatshini wogwebu luphantsi kakhulu.Izinto ezimnyama, ezimhlophe kunye ne-cyclopentane azixutywanga ngokufanayo, ezibonakaliswa njengobunzima obungalinganiyo be-polyurethane foam, iibhubhu ezinkulu zendawo, ukuqhekeka kwe-foam, kunye ne-foam ethambileyo yendawo: i-white, yellow or black streaks ibonakala kwi-foam , i-foam yawa.Uxinzelelo lwenaliti yomatshini wogwebu yi-13 ~ 16MPa