Ubushushu besikhunta seplastiki bunempembelelo enkulu kumgangatho wokubumba wemveliso. Yenye yeemeko ezintathu eziphambili zenkqubo yokubumba ngenaliti. Kwinkqubo yokubumba ngenaliti ngokuchanekileyo, akukho ngxaki yobushushu obuphezulu nobuphantsi kuphela, kodwa nengxaki yokuchaneka kokulawula ubushushu. Ngokucacileyo, ikwinkqubo yokubumba ngenaliti ngokuchanekileyo. Kwinkqubo, ukuba ulawulo lobushushu aluchanekanga, ukunyibilika kweplastiki kunye nokusebenza kokubumba kunye nesantya sokuncitshiswa kwemveliso akuyi kuzinza, ngoko ke ukuchaneka kwemveliso egqityiweyo akunakuqinisekiswa. Ngokwesiqhelo, indlela yokudibanisa inkqubo efana nebhokisi yokulawula ubushushu kunye neringi yokufudumeza isetyenziselwa ukulawula ubushushu bephantom.
1. Kukho iindlela ezahlukeneyo zokufudumeza okanye ukupholisa umzimba wesikhunta seplastiki ukuze kulungiswe ubushushu. Umphunga, ukujikeleza kweoyile eshushu, ukujikeleza kwamanzi ashushu kunye nokumelana kungasetyenziselwa ukufudumeza umzimba wesikhunta. Amanzi ajikelezayo apholisayo okanye amanzi apholisayo angasetyenziselwa ukupholisa umzimba wesikhunta. Umoya uyenziwa. Ukulungiswa kobushushu besikhunta esisetyenziswa kumatshini wokubumba ngenaliti, ukufudumala okuxhathisayo kunye nokupholisa ukupholisa okujikelezayo kusetyenziswa kakhulu. Xa isikhunta sifudunyezwa ngokuxhathisa, inxalenye ethe tyaba ifudunyezwa ngocingo lokuxhathisa, inxalenye esisilinda ifudunyezwa ngombane wokufudumeza, kwaye ingaphakathi lesikhunta lifudunyezwa ngentonga yokufudumeza yombane. Isikhunta kufuneka sipholiswe ngokulungiselela umbhobho wamanzi ojikelezayo ukuze uphole. Ukujikeleza kwamanzi okuxhathisayo kunye nokupholisa, zombini zisebenza ngokutshintshana ngokweemeko zobushushu zomzimba wesikhunta, ukuze ubushushu besikhunta bulawulwe ngaphakathi komgangatho wobushushu obufunekayo yinkqubo.
2. Amanyathelo okuthintela ubushushu bomngundo:
(1) Ubushushu benxalenye nganye yesikhunta esibumbayo emva kokufudumeza kufuneka bufane ukuqinisekisa ukuba ukunyibilika kunomgangatho ongcono wokuzalisa, ukuze umgangatho wokubumba wemveliso ebunjiweyo yenaliti uqinisekiswe, kwaye izinga lokupasa kwemveliso ebunjiweyo yenaliti liphuculwe.
(2) Ukulungiswa kobushushu benkqubo yomzimba wesikhunta kufuneka kumiselwe bubungakanani bokunyibilika. Ukuze kufakwe i-viscosity melts ephezulu kwisikhunta, ubushushu bomzimba wesikhunta kufuneka bulungiswe kancinci; ngelixa ukuze kugcwaliswe i-viscosity melts ephantsi kwisikhunta, ubushushu bomzimba wesikhunta bunokwehliswa ngokufanelekileyo. Xa ulungiselela ukuvelisa inaliti, ubushushu bomzimba wesikhunta bungaphakathi koluhlu lweemfuno zenkqubo. Ukuqinisekisa ubushushu obufanayo bomzimba wesikhunta, umzimba wesikhunta obushushu bawo bufunekayo kwinkqubo yokufudumeza kufuneka ugcinwe kubushushu obungaguqukiyo kangangexesha elithile.
(3) Xa kusenziwa i-injection molding kwiimveliso ezinkulu zeplastiki, ngenxa yobuninzi be-melt esetyenziselwa ukubumba, i-melt flow channel incinci, kwaye umzimba omkhulu we-mold kufuneka ufudunyezwe kwaye ufume kwi-melt flow channel ukuthintela i-melt flow channel ukuba ibe yinde kakhulu. Ukupholisa ngelixa kuqhubeka kwandisa i-viscosity ye-melt, nto leyo enciphisa ukuhamba kwezinto, ichaphazela umgangatho we-melt injection kunye ne-mold filling, kwaye ibangela ukuba i-melt iphole kwaye iqine kwangaphambili, okwenza umatshini we-injection molding ungabi nako ukusebenza.
(4) Ukuze kuncitshiswe ubushushu bokunyibilika ngenxa yomjelo omde wokuhamba kokunyibilika nokunyusa ukulahleka kwamandla obushushu, kufuneka kongezwe umaleko okhusela ubushushu kunye nowokufuma phakathi kwenxalenye yobushushu obuphantsi yomngxuma wokubumba kunye nenxalenye yobushushu obuphezulu yomjelo wokuhamba kokunyibilika.
Ixesha lokuthumela: Okthobha-22-2021