Ezinye iimpawu zokubumba ngenaliti zezinto zePC/ABS/PE

Ezinye iimpawu zokubumba ngenaliti zezinto zePC/ABS/PE

1.PC/ABS

Iindawo eziqhelekileyo zokusetyenziswa: iikhompyutha kunye nezindlu zoomatshini beshishini, izixhobo zombane, oomatshini bengca kunye negadi, iideshibhodi zezixhobo zeemoto, izinto zangaphakathi, kunye nezigqubuthelo zamavili.

Iimeko zenkqubo yokubumba ngenaliti.
Unyango lokomisa: Unyango lokomisa ngaphambi kokuba kucutshungulwe luyimfuneko. Umswakama kufuneka ube ngaphantsi kwe-0.04%. Iimeko zokumisa ezicetyiswayo ziphakathi kwama-90 ukuya kwi-110°C kunye neeyure ezi-2 ukuya kwezi-4.
Ubushushu bokunyibilika: 230~300℃.
Ubushushu bomngundo: 50~100℃.
Uxinzelelo lwenaliti: luxhomekeke kwinxalenye yeplastiki.
Isantya sokujova: siphezulu kangangoko.
Iipropati zekhemikhali nezomzimba: I-PC/ABS ineempawu ezidibeneyo ze-PC kunye ne-ABS. Umzekelo, iimpawu ezilula zokucubungula ze-ABS kunye neepropati ezibalaseleyo zoomatshini kunye nokuzinza kobushushu be-PC. Umlinganiselo wezi zimbini uya kuchaphazela ukuzinza kobushushu bezinto ze-PC/ABS. Izinto ezixutyiweyo ezifana ne-PC/ABS nazo zibonisa iimpawu ezigqwesileyo zokuhamba kwamanzi.

i-csdvffd

 

2.PC/PBT
Iindlela eziqhelekileyo zokusetyenziswa: iibhokisi zegiya, iibhampa zeemoto kunye neemveliso ezifuna ukumelana neekhemikhali kunye nokugqwala, uzinzo lobushushu, ukumelana neempembelelo kunye nokuzinza kwejometri.
Iimeko zenkqubo yokubumba ngenaliti.
Unyango lokomisa: 110~135℃, malunga neeyure ezi-4 unyango lokomisa luyacetyiswa.
Ubushushu bokunyibilika: 235~300℃.
Ubushushu bomngundo: 37~93℃.
Iipropati zeekhemikhali kunye nezomzimba I-PC/PBT ineempawu ezidibeneyo ze-PC kunye ne-PBT, ezinje ngokuqina okuphezulu kunye nokuzinza kwejometri ye-PC kunye nokuzinza kweekhemikhali, ukuzinza kobushushu kunye neepropati zokuthambisa ze-PBT.

i-wps_doc_14

3.PE‐HD

Iindlela eziqhelekileyo zokusetyenziswa: izikhongozeli zefriji, izikhongozeli zokugcina izinto, izitya zasekhitshini zasekhaya, izivalo zokuvala, njl.

Iimeko zenkqubo yokubumba ngenaliti.
Ukomisa: Akukho mfuneko yokomisa ukuba igcinwe kakuhle.
Ubushushu bokunyibilika: 220 ukuya kwi-260°C. Kwizinto ezineemolekyuli ezinkulu, umlinganiselo wobushushu bokunyibilika ocetyiswayo uphakathi kwe-200 kunye ne-250°C.
Ubushushu bomngundo: 50-95°C. Ubushushu bomngundo obuphezulu kufuneka busetyenziswe kubukhulu bodonga obungaphantsi kwe-6mm kunye nobushushu bomngundo obuphantsi kubukhulu bodonga obungaphezulu kwe-6mm. Ubushushu bokupholisa kwiindawo zeplastiki kufuneka bufane ukuze kuncitshiswe umahluko wokuncipha. Ukuze kube nexesha elifanelekileyo lomjikelo, ububanzi bomngundo wokupholisa kufuneka bungabi ngaphantsi kwe-8mm kwaye umgama ukusuka kumphezulu womngundo kufuneka ube ngaphakathi kwe-1.3d (apho "d" bububanzi bomngundo wokupholisa).
Uxinzelelo lwenaliti: 700 ukuya kwi-1050 bar.
Isantya sokujova: Kucetyiswa ukuba kujovwe ngesantya esiphezulu. Ii-runners kunye nee-gate: Ububanzi bomgijimi bufanele bube phakathi kwe-4 kunye ne-7.5 mm kwaye ubude bomgijimi bufanele bube bufutshane kangangoko. Iindidi ezahlukeneyo zamasango zingasetyenziswa kwaye ubude besango abufanele budlule kwi-0.75mm. zifanelekile ngakumbi ekusebenziseni ii-hot runner molds.
Iimpawu zeekhemikhali nezomzimba: Ukuqina okuphezulu kwe-PE-HD kubangela uxinano oluphezulu, amandla okutsalwa, ubushushu obuphezulu bokujika, i-viscosity kunye nokuzinza kweekhemikhali. I-PE-HD inokumelana okuphezulu kokungena kune-PE-LD. I-PE-HD inamandla aphantsi empembelelo. Iimpawu ze-PH-HD zilawulwa kakhulu bubuninzi kunye nokusasazwa kobunzima beemolekyuli. Ukusasazwa kobunzima beemolekyuli ze-PE-HD ezifanelekileyo zokubumba ngenaliti kuncinci kakhulu. Ngoxinano lwe-0.91-0.925g/cm3, silubiza ngokuba luhlobo lokuqala lwe-PE-HD; ngoxinano lwe-0.926-0.94g/cm3, lubizwa ngokuba luhlobo lwesibini lwe-PE-HD; ngoxinano lwe-0.94-0.965g/cm3, lubizwa ngokuba luhlobo lwesithathu lwe-PE-HD. -Le nto ineempawu ezilungileyo zokuhamba, i-MFR iphakathi kwe-0.1 kunye ne-28. Okukhona ubunzima be-molecular buphezulu, kokukhona iimpawu zokuhamba ze-PH-LD ziphantsi, kodwa zinamandla angcono okuchaphazeleka. I-PE-LD yinto e-semi-crystalline enokuncipha okukhulu emva kokubumba, phakathi kwe-1.5% kunye ne-4%. I-PE-HD ichaphazeleka lula kukuqhekeka koxinzelelo lokusingqongileyo. I-PE-HD inyibilika lula kwi-hydrocarbon solvents kumaqondo obushushu angaphezu kwama-60C, kodwa ukumelana kwayo nokunyibilika kungcono kancinci kunokwe-PE-LD.

izinto-zeplastiki-ezingavuthwanga-500x500

4.PE-LD
Ukomisa: ngokubanzi akufuneki
Ubushushu bokunyibilika: 180 ~280 ℃
Ubushushu bomngundo: 20~40℃ Ukuze kufezekiswe ukupholisa okufanayo kunye nokunciphisa ubushushu ngendlela engabizi kakhulu, kucetyiswa ukuba ububanzi bomngundo wokupholisa bube yi-8mm ubuncinane kwaye umgama ukusuka kumngundo wokupholisa ukuya kumphezulu womngundo ungadluli amaxesha ali-1.5 obubanzi bomngundo wokupholisa.
Uxinzelelo lwe-injection: ukuya kuthi ga kwi-1500 bar.
Uxinzelelo lokubamba: ukuya kuthi ga kwi-750 bar.
Isantya sokujova: Isantya sokujova esikhawulezayo siyacetyiswa.
IiRunners kunye neeGates: Iindidi ezahlukeneyo zeeRunners kunye neeGates zingasetyenziswa. I-PE ifanelekile ngokukodwa ukusetyenziswa neeMolds zeRunner ezishushu.
Iipropati zeekhemikhali nezomzimba: Uxinano lwezinto ze-PE-LD zokusetyenziswa kwezorhwebo yi-0.91 ukuya kwi-0.94 g/cm3. I-PE-LD ingena kwigesi nomphunga wamanzi. I-coefficient ephezulu yokwandiswa kobushushu be-PE-LD ayifanelekanga ekucutshungulweni kweemveliso zokusetyenziswa ixesha elide. Ukuba uxinano lwe-PE-LD luphakathi kwe-0.91 kunye ne-0.925g/cm3, ngoko izinga layo lokuncipha liphakathi kwe-2% kunye ne-5%; ukuba uxinano luphakathi kwe-0.926 kunye ne-0.94g/cm3, ngoko izinga layo lokuncipha liphakathi kwe-1.5% kunye ne-4%. Uxinano lwangoku lwangoku lukwaxhomekeke kwiiparamitha zenkqubo yokubumba ngenaliti. I-PE-LD iyamelana nezinyibilikisi ezininzi kubushushu begumbi, kodwa izinyibilikisi ze-hydrocarbon ezinuka kamnandi nezine-chlorine zinokubangela ukuba idumbe. Njenge-PE-HD, i-PE-LD isengozini yokuqhekeka koxinzelelo lokusingqongileyo.370e2528af307a13d6f344ea0c00d7e2


Ixesha lokuthumela: Okthobha-22-2022