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Ubushushu bokukhupha
Ukuze ufumane iibhodi zefoam zesikhumba zePVC eziqinileyo ezineembobo ezixineneyo nezifanayo, iindawo ezigudileyo nezicocekileyo, ubushushu bendawo nganye kufuneka bulawulwe ngokungqongqo ngexesha lokwenziwa kwebhodi yefoam yePVC. i-extrusion imigca. Ukuba ubushushu bebhareli kunye neskrubu buphezulu kakhulu, izinto zinokwakheka kwe-foam ngaphambi kokuba zinyibilike, nto leyo ebangela ukwaphuka kwe-melting kunye nomphezulu orhabaxa wepleyiti. Ukuba ubushushu buphantsi kakhulu, i-plasticization yezinto ayiphelelanga, kwaye umphezulu wepleyiti awulingani; ubushushu bomzimba wotshintsho kunye nomlomo we-die kufuneka bube ngaphantsi kobushushu be-extrusion, kodwa ubushushu obuphantsi kakhulu buya kwenza ubushushu be-melting bube phantsi kakhulu ukuba bulahlekelwe bukuqina kwaye bunwetshwe, ngelixa ubushushu obuphezulu kakhulu buya kunciphisa amandla e-melting kunye nokuqina, bubangele ukuqhekeka kwe-bubble, kwaye buvelise iziphene ezingenanto kumphezulu wepleyiti.
Ukukhutshwa kwezinto ezisetyenzisiweyo kudla ngokudlula kwiinkqubo ezintathu: ukufudumeza, ubushushu obungaguqukiyo, kunye nokugcinwa kobushushu.
Indawo yokufudumeza ikwicala elingaphambili lezibuko lokukhupha umoya le-extruder (icandelo lokuqala lokuhambisa umoya kunye necandelo lesibini lokucinezela indawo); indawo yobushushu obungaguqukiyo ikwicala elingasemva lezibuko lokukhupha umoya (icandelo lesithathu lokukhupha umoya kunye necandelo lesine lokulinganisa indawo); indawo yokukhusela umoya iqulathe ikakhulu intloko yokufa, umzimba wotshintsho, kunye ne-die. Izinto ezikwindawo yokufudumeza zifuna ubushushu obuninzi, ngoko ke ubushushu obusetwe kule ndawo kufuneka bube phezulu kancinci ukuze kuhlangatyezwane neemfuno zokongeza ubushushu ngokukhawuleza kunye nokugcina ubushushu obuzinzileyo bebharele. Ngenxa yobushushu bangaphakathi obuveliswa kukucheba nokuqengqeleka kwezinto yi ukujikela Kwindawo yobushushu obungaguqukiyo obudlula iimfuno zezinto, le ndawo ixhotyiswe ngesixhobo sokulawula ubushushu obuneendlela ezimbini sokufudumala nokupholisa ukulawula ubushushu bebharele ukuze buhlale bunjalo, ukuqinisekisa ukwenziwa kweplastiki eqhelekileyo kunye nokubumba okuphumayo kwezinto. Emva kokuba izinto zidlule kwindawo yobushushu obungaguqukiyo, ziye zaba yiplastiki ngokupheleleyo, kwaye ubushushu kule ndawo abusekho. Ukuze kusekwe uxinzelelo olunyibilikayo, kuyimfuneko ukuseta iipleyiti zokufudumeza ukongeza ubushushu bangaphandle.
Isantya sokukhupha kunye nexesha lokuhlala
Indlela yokuvelisa ibonisa ukuba isantya sesikrufu sihambelana ngokuthe ngqo nesiphumo sokuphuma kwepleyiti kwaye sihambelana ngokuphambeneyo noxinano lwepleyiti. Okukhona isantya sesikrufu siphezulu, kokukhona isantya sokuphuma sikhawuleza, kunye nokunyuka ngokukhawuleza kobushushu bokunyibilika kwandisa ubunzima bokulawula inkqubo, kodwa inqanaba lokufutha liyafana kwaye umgangatho womphezulu wemveliso ulungile; ngokuchaseneyo, xa isantya sesikrufu siphantsi kakhulu kwaye isantya sokuphuma sicotha, kuya kubangela ukwenziwa kweplastiki embi kokunyibilika ukunciphisa ukusebenza kakuhle kwemveliso, kwaye ukufutha kufutshane nomlomo wedayi kuya kwenza umphezulu wepleyiti ube rhabaxa. Ukongeza, umgangatho wepleyiti uchaphazeleka lixesha lokuhlala kwezinto kwibharele yokukhuhla kunye nokufa. Ukuba ixesha lokuhlala lifutshane kakhulu, iarhente yokufutha ayiboli ngokwaneleyo, nto leyo ebangela ipleyiti enoxinano olukhulu; ukuba ixesha lokuhlala lide kakhulu, kulula ukufutha kakhulu kwaye iimpawu zoomatshini zepleyiti ziyancitshiswa.
Uxinzelelo lwe-Extrusion
Isitshixo sempumelelo okanye ukungaphumeleli kwe-plate foaming sixhomekeke ekubeni ulawulo loxinzelelo lwe-extrusion lufanelekile na. Isantya sesikrufu, ubushushu bokunyibilika, kunye nobude kunye nomlinganiselo woxinzelelo lwe-die internal flow channel zonke zinempembelelo enkulu kuxinzelelo lwe-extrusion. Ukwanda kwesantya sesikrufu kunyusa uxinzelelo lwe-extrusion lwe-melt, olunokunciphisa ububanzi bee-bubbles kwaye lwandise inani lee-bubbles, okwenza kube lula inkqubo ye-foam. Xa izinto ezongezelelweyo zenziwe iplastiki kakuhle, zombini uxinzelelo lwe-die kunye ne-current zizinzile; ngelixa xa izinto zenziwe i-plasticed engafanele, uxinzelelo lwe-die luyatshintshatshintsha, i-motor current iyanda kwaye ayizinzanga. Kwimveliso yokwenyani, utshintsho kwi-host current kunye ne-die pressure zihlala zisetyenziswa njengesiseko esibalulekileyo sokugweba ukuba ulawulo lobushushu lwe-extrusion lufanelekile na.
Eneminyaka ephantse ibe ngama-20 kwishishini lezixhobo zokukhupha izixhobo ezikrelekrele, ubambe iindima eziphambili kwiJwell Machinery, kuquka uMphathi Jikelele kunye noSihlalo ojikelezayo. Ukusukela ngo-2024, ulawule iinkampani ezininzi ezincedisayo, eqhuba ukwandiswa kweshishini kunye nokuphuculwa kwemizi-mveliso, ngelixa ekhokela ubuchule kwimveliso ekrelekrele kunye nokukhula kwehlabathi.
