I-low-density polyethylene, evamise ukufushaniswa ngegama elithi LDPE, iyi-thermoplastic eyi-semi-crystalline ekhiqizwa ngokuhlanganisa i-ethylene ngaphansi kwengcindezi ephezulu kanye nezinga lokushisa eliphezulu, okudala uchungechunge lwamangqamuzana anamagatsha oluziphatha ngendlela ehluke kakhulu kumapulasitiki aqinile. Lolo magatsha yiwona ncamashi anikeza i-LDPE ubuthambile bayo obuyisiginesha, ukuqina, kanye nokucaca okumangalisayo ezilinganisweni ezincane, okuyenza ibe ngenye yamapholima ezinto ezisetshenziswayo eziguquguquka kakhulu emhlabeni. Kubaguquli, abanikazi bamabhrendi, kanye nezinkampani zokuhweba, i-LDPE isalokhu iyisinqumo esiphambili sokupakisha okuguquguqukayo, ifilimu, izikhwama, kanye nemikhiqizo ebunjiwe ngoba ilinganisa ukusebenza, ukusebenzeka, kanye nezindleko kangcono kunacishe kube yinoma iyiphi enye i-resin eqhudelanayo. Ukuminyana kwayo okuphansi futhi kusho ama-square metres amaningi efilimu ngekhilogramu ngayinye, okunciphisa ngqo ukusetshenziswa kwezinto ezisetshenziswayo emigqeni yokupakisha yomthamo omkhulu. I-Dongguan Hanxin Plastic Technology Co., Ltd. yakhelwe eduze kwalo mkhakha wezinto, ihlinzeka nge-LDPE ngamazinga amaningi ezimbonini eziqhuba i-blown film, i-cast film, i-injection, i-blow molding, kanye nemishini ye-extrusion nsuku zonke. Noma ngabe udinga ama-LDPE granules amasha, ama-LDPE pellets agayiwe, noma inhlanganisela eyenziwe ngokwezifiso, indima yale nkampani ukususa ukungaqiniseki ekuhlinzekweni kwakho kwezinto zokusetshenziswa.

Abathengi abafuna i-LDPE ngokuvamile abafuni ikhathalogi kuphela; bafuna umlingani oqonda i-melt flow index, izinhlelo ze-slip ne-antiblock, kanye nendlela i-resin eziphatha ngayo ku-screw ne-die geometry yabo ethile. Yingakho izimo zokusetshenziswa kwe-LDPE okuxoxwa ngazo kulesi sihloko zihambisana nesiqondiso esisebenzayo sokucubungula esikhundleni sezimangalo zokumaketha ezijwayelekile. Abaguquli be-flexible packaging baqhathanisa i-linear low density polyethylene ne-LDPE ukuze balungise amandla e-seal nokumelana nokubhobozwa, kuyilapho ababumbi be-injection molding babheka ukuncipha nesikhathi somjikelezo esikhundleni salokho. I-Dongguan Hanxin Plastic Technology isebenzela womabili la maqembu ngohlu lwemikhiqizo egciniwe kanye nethimba lobuchwepheshe elikhuluma ulimi lwabasebenzisi bemishini, hhayi iminyango yezokuthenga kuphela. Inkampani futhi iphatha imibhalo, ukupakisha kokuthumela ngaphandle, nokuxhumanisa ukuthunyelwa ukuze abathengi bamazwe ngamazwe bathole impahla engaguquguquki ngezikhathi ezingabikezelwa. Hlola i-Ikhaya ikhasi ukuze ubone ukuthi inkundla yokuhlinzeka ebanzi ihlelwa kanjani ngaphambi kokungena ezigabeni ezithile.

I-Dongguan Hanxin Plastic Technology Co., Ltd. iyinkampani ehlinzeka ngezinto zokwenziwa zepulasitiki ezinze eDongguan, esifundazweni saseGuangdong, inhliziyo yezokukhiqiza yasePearl River Delta futhi ingelinye lamaqoqo amakhulu kakhulu okucubungula ama-polymer e-Asia. Ukuba ngaphakathi kwalesi simo kuyenza le nkampani ikwazi ukufinyelela ngokushesha kubakhiqizi bamakhemikhali e-petroleum abaphezulu, abahlinzeki be-masterbatch, kanye nenethiwekhi yezokuthutha evuthiwe exhuma emachwebeni aseYantian, eShekou naseHong Kong. Ifekthri isebenzisa imigqa yokuhlanganisa, yokwenza ama-pellet, neyokuhlunga esekelwa amalabhorethri angaphakathi, ama-moisture analyzer, nama-melt flow index tester, ngakho izinqumo zekhwalithi zithathwa ngokusekelwe kudatha hhayi ekuqageleni. Umthamo wokukhiqiza uhlelwe ukukhonza kokubili amakhasimende aphindayo agcwalisa ama-container kanye nama-oda amancane okulinga, okuyinto ebaluleke kakhulu lapho umthengi eqinisekisa uhlobo olusha lwe-LDPE. Eminyakeni edlule le nkampani iqongelele isipiliyoni sokuthumela ngaphandle kulo lonke elaseNingizimu-mpumalanga ye-Asia, eMpumalanga Ephakathi, eYurophu, e-Afrika naseMelika, ilungisa ukupakisha, ukulebula kanye nemibhalo ngokuvumelana nendawo ngayinye. Ungabuyekeza ingemuva lenkampani ngemininingwane eyengeziwe ku-Mayelana Nathi ikhasi.

Okubalulekile okugxilwe kukho kucacile: izinto zokusetshenziswa ze-LDPE, ama-granule e-LDPE, i-LDPE egaywe kabusha, kanye nezixazululo zepulasitiki ezenziwe ngokwezifiso ezakhelwe phezu kwezicaciso ezichazwe ngokucacile. Yonke imithwalo ihambisana nephepha ledatha lobuchwepheshe elihlanganisa ukuminyana, inkomba yokugeleza kokuncibilika, amandla okudonsa, ukweluleka ngaphambi kokuphuka, kanye nephuzu lokuthambisa le-Vicat, kanye nesitifiketi sokuhlaziya esihambisana neqoqo langempela lokukhiqiza. Ngenxa yokuthi inkampani iphinde ihwebe ngezinto ezihambisana nazo, abathengi abafuna i-linear low density polyethylene noma abaqhathanisa izinketho ze-hdpe ne-LDPE bangahlanganisa ama-oda futhi banciphise ubunkimbinkimbi bezokuthutha. Amazinga ekhwalithi agcinwa ngokuhlolwa okubhaliwe kokungenayo, ukuqapha phakathi nenqubo, kanye nokuthathwa kwesampula okuphumayo, ngokulandelelwa kweqoqo okuvumela noma yisiphi isikhalazo ukuthi silandelelwe sibuyiselwe eqoqweni elithile phakathi namahora. Ukusekelwa kwesitifiketi kuhlanganisa izimiso zokuphathwa kwekhwalithi ze-ISO 9001, izimemezelo ze-RoHS ne-REACH lapho kusebenza khona, kanye nemibhalo eqondiswe ekuxhumaneni nokudla uma iceliwe. Le nhlanganisela yendawo, umthamo, kanye nokuziphatha kahle yikho okuvumela inkampani ukuthi ithembise ukuhlinzeka okuthembekile esikhundleni sokuhweba kwesikhathi esisodwa.

I-virgin LDPE range ihlanganisa ama-film grades, ama-injection grades, ama-blow molding grades, kanye nama-extrusion coating grades, ngayinye ilungiselelwe ibhalansi ehlukile ye-melt flow index kanye nokusatshalaliswa kwesisindo samangqamuzana. Ama-film grades ngokuvamile ahlala ebandleni eliphansi le-MFI ukuze anikeze ukuzinza kwebhamu, ukudonswa kahle, kanye nokumelana nokuklebhuka okuphezulu emigqeni ye-blown film, kuyilapho ama-injection grades esebenza nge-MFI ephezulu ukuze kugcwaliswe ngokushesha izingxenye ezinodonga oluncane. Ama-blow molding grades agcizelela amandla e-melt ukuze amabhodlela, amajerry can, kanye nezingxenye eziyize zobuchwepheshe zigcine ukuma kwazo ngesikhathi sokwakheka kwe-parison. Ama-extrusion grades asebenzela i-cable insulation, i-pipe coating, kanye ne-profile extrusion, lapho ukukhiqizwa okungaguquguquki kanye nokuqedwa kwendawo kubaluleke kakhulu kunokucaca kokubona. I-grade ngayinye itholakala ezikhwameni ezijwayelekile ezingama-25 kg, ama-jumbo bags, noma ekupakishweni okukhulu ngokuhambisana nemishini yokuphatha yomthengi. Uma futhi ucubungula i-linear low density polyethylene ye-stretch noma i-heavy-duty film, i-Ipulasitiki Ejwayelekile isigaba sikhombisa ukuthi lezi zinhlaka ezihlobene zingena kanjani ohlelweni olulodwa lokuthenga.

Ama-LDPE pellets agaywe kabusha kanye ne-LDPE elungiswe kabusha kwakha indlela yesibili yezinhlelo ezibhekene nezindleko ngaphandle kokudela ukusebenza komshini okuyisisekelo. I-post-industrial kanye ne-post-consumer feedstock iyahlungwa, igezwe lapho kudingeka khona, ihlungwe, futhi iphinde ifakwe kuma-pellets ngaphansi kwezinga lokushisa elilawulwayo ukuze ama-gels nokungcola kuhlale ngaphakathi kwemikhawulo okuvunyelwene ngayo. Lawa magreddi agaywe kabusha afanele izikhwama zikadoti, ifilimu yezokwakha, ama-liners, kanye nezinto ezibunjiwe ezingabalulekile lapho ukushintsha kombala okuncane kwamukelekile ukuze kutholakale ukonga okukhulu ngetoni ngayinye. Kubathengi abangaphansi kwengcindezi yokusimama, i-LDPE egaywe kabusha iphinde isekele izimangalo zokuqukethwe okugaywe kabusha kanye nezinjongo zangaphakathi ze-ESG. Amagreddi enziwe ngokwezifiso aqhubekisela phambili ububanzi: inkampani ingalungisa i-melt flow index, yengeze i-slip, i-antiblock, i-antioxidant, i-UV stabilizer, noma ama-masterbatches okucisha umlilo, futhi ifanise imibala nereferensi ye-Pantone noma isampula ebonakalayo. Ukufaniswa kombala okwenziwe ngokwezifiso kanye namaphakethe ezithako kunikezwa intengo ngokushesha ngoba umugqa wokuhlanganisa wenzelwe ukusebenza okufushane, okuguquguqukayo hhayi kuphela imikhankaso emikhulu.

Ikhwalithi ezinzile iyinzuzo yokuqala, futhi iphoqelelwa ngokulawulwa kwekhwalithi okungqongqo kokungenayo nokuphumayo esikhundleni solimi lokumaketha. I-resin engenayo kanye ne-recycled feedstock kuhlolwa umswakama, ukungcola, kanye ne-melt flow index ngaphambi kokukhululwa iye ekukhiqizeni, futhi ama-LDPE granules aqediwe aphinde athathwe isampula ngaphambi kokupakishwa. Amarekhodi e-batch axhumanisa isikhwama ngasinye nesikhathi sokukhiqiza, umshini, kanye nama-raw material lots asetshenzisiwe, okwenza ukulandelela kusebenze ngempela. Lapho ikhasimende libika inkinga yokucubungula, ithimba lobuchwepheshe lingaqhathanisa i-batch yesikhalazo namasampula agciniwe kanye nedatha yokuhlola yomlando ngosuku olufanayo. Lesi simiso sinciphisa isikhathi sokuphumula kanye nemfucuza ebhubhisa inzuzo emigqeni yesivinini esiphezulu yefilimu nokubumba. Futhi kuchaza ukuthi kungani amakhasimende esikhathi eside ethatha i-Dongguan Hanxin njengomlingani wokucaciswa esikhundleni somthengisi wemakethe yesikhashana.

Ukubeka amanani ancintisanayo asuka ngqo efektri kanye nenani elincane loku-oda eliguquguqukayo kuyalandela, ngoba akubona bonke abathengi abangakwazi ukuthatha i-container egcwele yohlobo olulodwa lwe-LDPE. Inkampani icaphuna isuka endaweni yokukhiqiza, isusa izendlalelo zenzuzo yabaxhumanisi, futhi ivumela ukuhlanganiswa kwezigaba ezixubile ukuze ifilimu, i-injection, ne-LDPE egaywe kabusha kuhamba ngokubhuka okukodwa. Ukulethwa okusheshayo kusekelwa isitokwe esihlala sikhona sezigaba ezihamba ngokushesha kanye nenethiwekhi yokuhlinzeka ehlanganisa abakhiqizi abaningana abafanelekile bangaphezulu, ukuze ukuphazamiseka kwesitshalo esisodwa kungami umugqa wakho. Ukupakishwa kokuthumela kwamanye amazwe kwenzelwe uhambo olude lwasolwandle, ngama-liner avimbela umswakama, ukupakishwa kwama-pallet okuqinile, nezimpawu zokuthumela ezicacile. Ukusekelwa kwezobuchwepheshe kuhlanganisa izincomo ze-screw ne-die, izeluleko zokomisa, nokuxazulula izinkinga ngesikhathi sokuhlolwa kokuqala. Izinsizakalo ze-OEM ne-ODM zivumela izikhwama ezinelabeli yangasese, ubuciko bezikhwama obenziwe ngokwezifiso, kanye nokwakhiwa kwenhlanganisela eyenziwe ngokwezifiso kubathengi abafuna uphawu lwabo ezintweni.

Amafilimu okupakisha yiwona asetshenziswa kakhulu ku-LDPE, futhi ngesizathu esizwakalayo: le resin inikeza ukukwazi ukufaka uphawu okuhle kakhulu, amandla okunamathela okushisayo, nokucaca kokubona ngezindleko eziphansi. Ifilimu ye-shrink isonga ama-multi-pack, amathreyi eziphuzo, nezimpahla zabathengi, ibambe ukuqina phakathi nokuthutha nokugcinwa kuyilapho iveza imidwebo ephrintiwe ngokuhlanzekile. Ifilimu ye-stretch incike ekubuyiseleni okunwebekayo kwe-LDPE ne-linear low density polyethylene blends ukuze kuhlanganiswe ama-pallet ngempahla encane. Ifilimu yezolimo ivikela izitshalo futhi ilondoloze umswakama, futhi amazinga e-UV-stabilized athuthukiselwe lokhu kusetshenziswa kufanele aphile isizini yonke yokukhula ngaphansi kwelanga elishisayo. Ama-liner asindayo ezimboni, amafilimu okunamathisela, nezinto zokunamathisela ziqedela iphothifoliyo yamafilimu. Abaguquli abasebenzisa lezi zinhlelo bayazuza kumphakeli ongashintsha amazinga e-MFI ne-slip ngokushesha lapho ukwakheka kwesimo kushintsha.

Ngaphandle kwefilimu, i-LDPE ivela ezikhwameni zokuthenga, izikhwama zikadoti, ama-liner, kanye nokupakishwa okuvikelayo lapho ukuqina nesisindo esiphansi kubaluleke kakhulu kunokuqina. Izingxenye ezibunjwe nge-injection-molded ezihlanganisa amacaps, izivalo, iziqukathi, nezinto zasendlini zisebenzisa amazinga okugeleza aphezulu agcwalisa izingxenye ezincane ngokushesha futhi akhululeke kahle esikhunjeni. Ukufakwa kukagesi kwekhebula ne-jacketing kuzuza ezimpahleni ze-dielectric zika-LDPE nokuguquguquka, ikakhulukazi ezinhlelweni zamandla aphansi lapho ukususa kalula kubalulekile. Amashubhu, amabhodlela okucindezela, neziqukathi eziguquguqukayo zisebenzisa ukumelana kwe-resin nokuqhekeka kokucindezeleka kanye nekhono layo lokucindezelwa kaningi ngaphandle kokuqhekeka. Ukupakishwa okuvikelayo okufana nama-foam-adjacent wraps, ama-air pillows, nokuvikelwa komphetho nakho kuncike ekuziphatheni kwe-cushioning kwe-LDPE. BuyekezaUkusetshenziswa isigaba ukuze ubone ukuthi lezi zinto zisetshenziselwa kanjani ezigabeni ezithile zezinto.

Ukuhlolwa kwezinto ezingavuthiwe kuyisango lokuqala, futhi kubheka i-LDPE engenayo, izinto zokugaywa kabusha, kanye nezithako njengezigaba zobungozi ezihlukene. Iqoqo ngalinye liqinisekiswa ngokumelene nephepha lalo lokucacisa, kukalwa umswakama, ukuminyana, kanye nenkomba yokugeleza kokuncibilika ngaphambi kokukhululwa, futhi noma yikuphi ukuphambuka kubangela ukubanjwa kanye nombuzo womphakeli. Ukuhlolwa kweqoqo ngesikhathi sokukhiqiza kuqapha ukubukeka kwama-pellet, ukungaguquguquki kombala, kanye nokusebenza kokuhlunga, ngoba ama-gel namachashaza amnyama yizinkinga ezilimaza kakhulu abaguquli bamafilimu. Izinto eziqediwe zithola isampula yokugcina ye-MFI, ukuminyana, amandla okudonsa, kanye nokwelula ukuze isitifiketi sokuhlaziya sibonise iqiniso kunokuba sibonise umgomo wokulinganisa. Amasampula agciniwe agcinwa isikhathi esinqunyiwe, okunikeza uchungechunge lokulandelela isisekelo esibonakalayo. Lolu hlelo olunezendlalelo lusho ukuthi umbuzo wekhwalithi uphendulwa ngobufakazi, hhayi ngokuqinisekisa.

Ukusekelwa kokuthobela imithetho kuhlanganisa ukuphathwa kwekhwalithi okuhambisana ne-ISO 9001, izimemezelo ze-RoHS ne-REACH, kanye neminye imibhalo efana nokuhlolwa kwezinsimbi ezisindayo noma izitatimende eziqondiswe ekuxhumaneni nokudla lapho uhlelo lokusetshenziswa lokugcina lukudinga. Abathengi abathumela izimpahla eziqediwe e-European Union noma eNyakatho Melika bavame ukudinga le mibhalo ifakwe kuyo yonke imithwalo, futhi ukubambezeleka emingceleni kuyabiza. Ngakho-ke inkampani ilungiselela izitifiketi, izinhlu zokupakisha, kanye nemibhalo yemvelaphi kanyekanye nokukhiqiza esikhundleni sokukwenza ngemuva kokukhiqiza. Ukusebenza okungaguquguquki kuqinisekiswa ngokumelene nezimo zangempela zokucubungula: ukuhlolwa kokuvuthela ifilimu kuhlola ukuzinza kwebhamuza namandla okusinda, ukugijima kwe-extrusion kuhlola umkhiqizo nekhwalithi yobuso, futhi ukuhlolwa kokubumba kuhlola ukuncipha nesikhathi somjikelezo. Lapho iklayenti linikeza isampula lokulinganisa, ilabhorethri isebenza ukuze ilifanise ngaphakathi kwemikhawulo okuvunyelwene ngayo. Yileyo ndlela umhlinzeki wezinto zokusetshenziswa eziluhlaza azuza ngayo ilungelo lokubhalwa ohlwini lwezinto ezisetshenziswayo zeklayenti.

Izindlela zokwakheka ezenzelwe umuntu ziqala ngengxoxo mayelana nempahla ebalulekile ngempela: amandla, ukucaca, ukuguquguquka, ukuqina, ukuziphatha kokuvala, noma isivinini sokucubungula. Uma umguquli edinga ukuthinta okuthambile kwesikhwama, impendulo ingase ibe yi-LDPE enokuminyana okuphansi noma ingxubevange ene-plastomer esikhundleni se-resin entsha ngokuphelele. Uma umbumbi edinga imijikelezo esheshayo, izinga le-melt flow index eliphezulu elinezithako ze-nucleating ezilungisiwe linganciphisa isikhathi sokupholisa ngokuphawulekayo. Ukucaca kudinga ukunakwa kokubili ekukhetheni i-resin nasekukhetheni izithako, njengoba ezinye izithako zokuhudula ziyafuduka futhi zithinte i-haze ngokuhamba kwesikhathi. Ukuqina ezinhlelweni zangaphandle kudinga ukuqiniswa kwe-UV okulinganiswe nesikhathi sokuvezwa okulindelekile. Ukwakheka ngakunye kubhalwa phansi ukuze i-oda elilandelayo liphinde ukusebenza okufanayo, hhayi ukulinganisa kwako.

Ukufaniswa kombala kanye nezinketho ze-additive masterbatch kunika abathengi amandla okulawula ukubukeka nokusebenza ngesikhathi esisodwa. Ilabhu ifanisa ngokubhekisela ku-Pantone, amakhodi e-RAL, noma ama-chips abonakalayo, bese iqinisekisa ngesampuli ebunjiwe noma ephefumulwayo ngaphambi kokukhiqizwa okukhulu. Amaphakethe e-additive ahlanganisa i-antioxidant, i-slip, i-antiblock, i-antistatic, i-UV, kanye nezinhlelo zokuvimbela umlilo, konke kukalwa nge-masterbatch ukuze kugcinwe ukusabalalisa okulinganayo. Ukubambisana kwe-private label, i-OEM, kanye ne-ODM kuvumela abasabalalisi kanye nabanikazi bemikhiqizo ukuthi bethule imikhiqizo ye-LDPE ngaphansi kwegama labo ngedizayini yabo yokupakisha. TheImikhiqizo ikhathalogi ikhombisa ukuthi imindeni ehlanganisiwe iqoqwa kanjani ukuze kube lula ukucacisa. Kubathengi abaqhathanisa amanani avela kubaphakeli abaningi be-LDPE, into enqumayo ngokuvamile iwukuthi isicelo esenziwe ngokwezifiso siphendulwa ngokushesha futhi ngokunemba kangakanani.

Ukutholakala kwamasampula, inani elincane loku-oda, isikhathi sokulethwa, kanye nemigomo yokukhokha yimibuzo engokoqobo enquma ukuthi umhlinzeki uyasebenziseka yini. Amasampula wamazinga ajwayelekile e-LDPE ngokuvamile ayatholakala ukuze abaguquli bakwazi ukwenza ukuhlola emishinini yabo ngaphambi kokuzibophezela kwinani elikhulu. Inani elincane loku-oda ligcinwa livumelana nezimo, livumela i-oda lokuqala lamaphalethi ambalwa ezingeni elisha futhi likhuphuke liye kumakhontena agcwele uma impahla isamukelwe. Isikhathi sokulethwa sincike ezingeni nasekupakishweni, kodwa ama-granule e-LDPE amasha ahamba ngokushesha ngokuvamile athunyelwa ngokushesha esitokweni, kuyilapho izinhlanganisela ezenziwe ngokwezifiso zidinga isikhathi esinqunyiwe sokukhiqiza. Imigomo yokukhokha iyaxoxisana kumakhasimende aphindayo anerekhodi elisunguliwe. Intengo esobala isho ukuthi izindleko zokuthutha, zokupakisha, kanye nezincwadi ziyabonakala kunokuba zifihlwe.

Ukuthunyelwa ngomkhumbi, ngendiza, kanye nokuthunyelwa ngokushesha konke kuyasekelwa namadokhumenti okuthekelisa asezingeni elifanele, ngoba abathengi abahlukene banezidingo eziphuthumayo ezihluke kakhulu. Ukuthunyelwa ngomkhumbi kufanele ama-oda e-LDPE asezingeni lamathani, ukuthunyelwa ngendiza kuhlanganisa izimo eziphuthumayo zokukhiqiza, kanti amakhuri okuthunyelwa ngokushesha abhekana nokuthunyelwa kwamasampuli kanye namaqoqo amancane enziwe ngokwezifiso. Amadokhumenti ahlanganisa i-invoyisi yezentengiselwano, uhlu lokupakisha, isitifiketi somsuka, isitifiketi sokuhlaziya, kanye nanoma yiziphi izitatimende zokuhambisana nezidingo ezidingwa yimakethe yendawo okuyiwa kuyo. Ukusekelwa kwangemva kokuthengisa kuqhubeka ngisho nangemva kokulethwa: uma kuvela inkinga yokucubungula, ithimba lobuchwepheshe libuyekeza amapharamitha, amasampuli, nedatha yeqoqo ukuze lithole imbangela. Izinhlelo zokubambisana zesikhathi eside zinikeza ukwabiwa okubalulekile ngesikhathi sezimo ezinzima zemakethe kanye nokubuyekezwa kwentengo ngezikhathi ezithile. Finyelela ithimba lokuthengisa nge-Xhumana Nathi ikhasi ukuvula isilinganiso noma ingxoxo yezobuchwepheshe.

Ukucela isilinganiso samanani e-LDPE granules noma isisombululo esenziwe ngokwezifiso kuqala ngencazelo emfushane: uhlobo lwegrade, i-melt flow index ehlosiwe, ukuminyana, umbala, ukupakisha, inani, kanye nechweba lokuyisa. Ngalezo ziningwane, ithimba lingancoma i-grade ekhona noma liphakamise ukwakheka okulungiselelwe futhi libuyisele intengo ngokushesha. Ukubonisana kwezobuchwepheshe okusheshayo kuyatholakala kubaguquli abangaqinisekile ukuthi i-grade ye-LDPE entsha noma egaywe kabusha iyafanele umugqa wabo, noma ukuthi i-linear low density polyethylene kufanele ihlanganiswe ukuze kwengezwe ukumelana nokubhoboza. Izincomo zemikhiqizo zifaniswa nemishini yangempela, ngakho-ke iseluleko siyasebenza esikhundleni sethiyori. Ngale kwe-oda lokuqala, umgomo uwukusebenzisana okuthembekile, kwesikhathi eside kwe-LDPE okwakhelwe ekhwalithini engaguquki kanye nokuhamba okulindelekile kwezinto. Izindaba zenkampani, izibuyekezo zomthamo, kanye namanothi emakethe kushicilelwa ku-Izindaba ikhasi labathengi abalandelela izimo zokuhlinzeka.

I-LDPE, noma i-polyethylene enokuminyana okuphansi, iyi-thermoplastic enegatsha eyaziwa ngokuguquguquka, ukuqina, nokucaca kumafilimu amancane. Isetshenziswa kabanzi ngoba icubungula kalula emishinini ejwayelekile, ivaleka kahle, imelana nokudabuka, futhi ibiza kancane nge-square meter kunamanye amaningi. Ukuminyana kwayo okuphansi futhi kusho indawo enkulu yefilimu ngekhilogramu ye-resin, okwehlisa ngqo izindleko zokupakisha.

I-Virgin LDPE ikhiqizwa ngokuqondile ekuhlanganiseni i-ethylene futhi inikeza umbala ongaguquguquki, inkomba yokugeleza kokuncibilika, kanye nokusebenza kwemishini. I-LDPE egaywe kabusha iphinde icutshungulwe kusuka emfucumfucwini wangemva kwezimboni noma wangemva kokusetshenziswa, okwehlisa izindleko futhi kusekela izimangalo zokuqukethwe okugaywe kabusha kodwa kungase kubonise ukuhluka okuncane kombala noma ukuncipha kokucaca. Ukukhetha okufanele kuncike ekutheni uhlelo lokusebenza lubalulekile ngokubukeka noma lukwazi ukubekezelela ukusebenza, njengama-liner nezikhwama zikadoti.

Izinhlelo zokusebenza zefilimu nezikhwama ngokuvamile zidinga amazinga aphansi enkomba yokugeleza kokuncibilika anikeza ukuzinza kwebhamu, ukudonsa okuhle, namandla okuvala aqinile. Ukubunjwa ngomjovo kudinga amazinga aphezulu e-MFI agcwalisa izingxenye ezincane ngokushesha futhi akhululeke kahle kusikhunta. Ukubunjwa ngokuphefumula kuma phakathi, kudinga amandla ancibilikayo anele ukuze i-parison igcine ukuma kwayo.

Ikhwalithi ilawulwa ezingosini ezintathu: ukuhlolwa kokungena kwe-resin ne-feedstock, ukuqapha phakathi nenqubo kokubukeka kwe-pellet nokuhlunga, kanye nokuthathwa kwesampula okuphumayo kwe-melt flow index, density, tensile strength, kanye nokwelula. Amasampula agciniwe kanye namarekhodi e-batch enza ukulandelela okuphelele kube nokwenzeka. Noma yikuphi ukuphambuka kubangela ukubanjwa ngaphambi kokuba impahla ifike kumthengi.

Yebo. Izinhlobo ezijwayelekile ze-LDPE ziyatholakala njengamasampula ukuze abathengi bakwazi ukwenza izivivinyo emishinini yabo, futhi ukufaniswa kombala okwenziwe ngokwezifiso kunikezwa ngokubhekisele kuma-Pantone references, amakhodi e-RAL, noma ama-chips abonakalayo. Isampula elibunjiwe noma elivuthelwe ngokuvamile siqinisekiswa ngaphambi kokuba ukukhiqizwa ngobuningi kuqale. Lokhu kunciphisa ingozi yokungafani kombala noma ukucubungula esikalini.

Inani elincane loku-oda liyaguquguquka kunokuba limiswe ngokugcwele ku-container egcwele. Ama-oda okuqala ngokuvamile angaqala ngamaphalethi ambalwa ukuze izinga elisha liqinisekiswe, bese likhula phezulu uma seligunyaziwe. Ukuhlanganiswa kwezigaba ezixubile kuvumela ifilimu, umjovo, kanye ne-LDPE egaywe kabusha ukuthi zithunyelwe ndawonye.

I-LDPE ithambile, icace kakhulu, futhi kulula ukuyivala, okufanele ifilimu eliguquguqukayo nezikhwama. I-HDPE iqinile futhi inamandla, okwenza kube ngcono ezitsheni eziqinile namapayipi. I-Linear low density polyethylene ihlezi phakathi kwazo, inikeza ukumelana nokubhobozwa okuphezulu namandla okudonsa kufilimu yokunwebeka neyokusebenza kanzima.

Izithako ezijwayelekile zifaka i-antioxidant, i-slip, i-antiblock, i-antistatic, i-UV stabilizer, kanye nama-masterbatches okucisha umlilo, ngakunye kunikezwa umthamo wokusabalalisa ngokulinganayo. Ukukhethwa kwezithako kuncike ekusetshenzisweni kokugcina, njengokuchayeka kwangaphandle kwefilimu yezolimo noma ukulawula ukushelela ekwenzeni izikhwama ngesivinini esiphezulu. Zonke izinhlobo zibhalwa phansi ukuze ama-oda aphindwayo asebenze ngendlela efanayo.

Isikhathi sokuhola sincike ezigabeni nasekupakishweni, ngama-LDPE granules ahamba ngokushesha ngokuvamile athunyelwa ngokushesha esitokweni futhi izinhlanganisela ezenziwe ngokwezifiso zihlelwa ukuba zikhiqizwe. Izinketho zolwandle, zomoya, nezokuthumela ngokushesha ziyatholakala kuye ngokushesha nangobukhulu. Imibhalo ihlanganisa i-invoyisi yezentengiselwano, uhlu lokupakisha, isitifiketi somsuka, kanye nesitifiketi sokuhlaziya.

Yebo. Inkampani isekela ukubambisana kwelebula yangasese, i-OEM, kanye ne-ODM ukuze abasabalalisi nabanikazi bemikhiqizo bakwazi ukumaketha izinto ze-LDPE ngaphansi kwegama labo kanye nomklamo wokupakisha. Ukwakheka okwezifiso, ukufanisa imibala, kanye namaphakethe ezithako konke kuyingxenye yesevisi. Ukubonisana kwezobuchwepheshe kuyaqhubeka ngemuva kokulethwa ukuze ukusebenza kuhlale kuzinzile.