Ngophuhliso loshishino lwezothutho lwemibhobho, iimfuno zomthamo wothutho wemibhobho ziya ziba phezulu kwaye ziphezulu, kwaye ukusetyenziswa kombhobho weplastiki obubanzi obukhulu kuya kuba banzi.Uphando kunye nophuhliso lombhobho weplastiki wobubanzi obukhulu kunye nobukhulu bemveliso ephezulu, umgangatho wokukhanya, ukuxhathisa impembelelo kunye nokumelana nokubola yenye yeendlela eziphambili zophuhliso lothutho lwemibhobho kwixesha elizayo.
Ngophuhliso loshishino lwezothutho lwemibhobho, iimfuno zomthamo wothutho wemibhobho ziya ziba phezulu kwaye ziphezulu, kwaye ukusetyenziswa kombhobho weplastiki obubanzi obukhulu kuya kuba banzi.Uphando kunye nophuhliso lobubanzi obukhuluumbhobho weplastikikunye nomgangatho ophezulu wemveliso, umgangatho wokukhanya, ukuxhathisa impembelelo kunye nokuxhathisa umhlwa yenye yeendlela eziphambili zophuhliso lothutho lwemibhobho kwixesha elizayo.
Kweli phepha, indlela yokwenza umbhobho omkhulu weplastiki ububanzi, ubume bayo bophando, iingxaki ezikhoyo kunye nendlela yophuhliso zishwankathelwa.Ngokwembono yendlela yemveli yengxaki enkulu yokwenziwa kombhobho weplastiki, eli phepha licebisa ukuba kudityaniswe nokwanda kobugcisa bokwenziwa kwezinto zokubumba kunye nobugcisa bokubumba umbhobho weplastiki obubanzi obukhulu obudala ubuchwephesha obutsha. Indima yeplastiki yokunyibilika koxinzelelo lomatshini we-extrusion, ijethi ezaliswe ngumbhobho oqengqelekayo kunye nesixhobo sokugcina, ibhloko eyenziwe yimithintelo yendawo, emva koko isixhobo sokuqengqeleka kunye nengqumba yesijija esiqhubekayo phantsi kwesenzo somgca wokubumba wetrektara.
Emva koko, ngokomgaqo wenaliti yokunyibilika kwepolymer kunye neteknoloji yokupakisha, inaliti enkulu yeplastiki enyibilikayo yombhobho kunye nezixhobo zokupakisha zaphuhliswa.Isixhobo siquka i-extruder, isixhobo sokwenza umbhobho, itrektara, inkqubo yokulawula njalo njalo.Xa kuthelekiswa nesixhobo ukubumba umbhobho yemveli, izixhobo nje kuphela akukho mfuneko extrusion die intloko, mandrel ejikozayo, ukungunda, kwakhona unako bhetyebhetye ukubumba umbhobho, ingaba Ø ukubumba ububanzi 749 ~ Ø 948 mm, 30 ~ 50 mm umbhobho weplastiki ubukhulu eludongeni.
Iiparamitha eziphambili zenkqubo yokubumba zihlalutywa, kubandakanywa ubushushu bokubumba, isantya sokukrazula, isantya sokutsalwa, isantya sokujikeleza kunye ne-pitch, njl njl. Ngokobudlelwane bemathematika phakathi kweeparameters zenkqubo, iiparamitha zenkqubo ziseti kwaye zibalwe kuhlalutyo lokulinganisa lwamanani olulandelayo kunye umfuniselo uyafuneka.
Ngokomgaqo wenkqubo yokubumba yokuseka imodeli yemathematika kunye nemodeli yejometri, usebenzisa i-POLYFLOW isofthiwe yokuqhuba ukulinganisa kwamanani, uhlalutya ukuhanjiswa kwesantya sokunyibilika, ukusabalalisa ubushushu, ukuhamba kwendawo, njengomthetho, kudibaniswa nesantya sokuhamba, isantya esijikelezayo, ukupholisa ukugqibezela ubushushu boyilo, iiparamitha zenkqubo yokutofwa kwenaliti ezifana nobushushu, uhlalutyo lokulinganisa amanani, iziphumo zovavanyo ngokubaluleka kwesikhokelo sethiyori.
Ekugqibeleni, ngokweeparameters ezibaliweyo kunye nohlalutyo lokulinganisa lwamanani lwesiphelo, umbhobho omkhulu weplastiki unyibilika umbhobho wokwenza umfuniselo wokwenza umbhobho, kubandakanywa ukuqina kombhobho wokwenza umsesane, iipropati ezixineneyo kunye neepropati zempembelelo kunye novavanyo lweepropati zoomatshini, iziphumo zohlalutyo lwe-calorimetry eyahlukileyo, uhlalutyo. yesantya sokutsala, isantya esijikelezayo, ukugqiba ubushushu boyilo, ukupholisa ubushushu bokwenza isitshizi kunye nezinye iiparamitha zenkqubo kwipropathi yokubumba yombhobho weempawu, impembelelo yokuqinisekiswa kohlalutyo lokulinganisa amanani.
Ukongeza, iipropati zoomatshini kunye nombhobho wokubumba ngeempawu zoomatshini xa kuthelekiswa nobungakanani bombhobho wokubumba, iziphumo zibonisa ukuba ngenkqubo yokwenziwa kwedayamitha enkulu, iipropati zomatshini zombhobho weplastiki zingcono kunezo zokubumba i-extrusion, ngakumbi ukusebenza kwempembelelo. , phakathi kwabo, amandla empembelelo ye-axial yi-1.6 yamaxesha e-extrusion yokubumba umbhobho kunye namandla empembelelo ye-circumferential yi-2.2 amaxesha ombhobho wokubumba we-extrusion.
Ixesha lokuposa: Jul-17-2020