EN
Ngubani EVA?
Ethylene Vinyl Acetate (EVA) yihlobo elishayile olunyeleyo kwe-ethylene kunye no-vinyl acetate, esebenziswa ngokuphelele eminyakeni yamakhono. Umhlaba omncane owahlukeneyo lokhu luhluke kumazwi amadodana akho, okuthi wahlukene kakhulu kuzama ukuba imigomo ezingqanayo ezininzi zezinhlobo zokusebenza. Isibonelo sokuqala sokulula kokusebenzisa kuyona umoya wakhe ukuba uhlale kanye nokuba uhlanganise, ukuvumela ukuba alungiselele izindawo eziningi ezinethengiselwa.
Izintathu zamandla kazwakho ze-EVA ziyinkosazana, isibhendulo kunye nesiphindekiso, ezikhoyo zikhetho ekuseni lokuhlola. Izinhlonipho ezizithile zingabizwa ngokuhlola ukuba i-EVA iyiphambili yokuhlola. Zikhetha i-EVA ngokuhlola ukuba ubuyekeza uphawu kunye nokugcina ngaphandle komncane ongenziwe kushoni. Lomsebenzi akhiwe ngokuthi i-EVA ikhona kakhulu kusenzo esidingayo lokuhlola ukufundiswa kwemali, apho ukusuka nokuhlola kanye nokuhlola kuhluke kakhulu kusenzo esidingayo. Izicathulo ze-EVA bazibiza ngokuthi babekho abalimi abaningi abasebenzisa abebeqhubeka ukuthi babekwenze imigomo engasusa ngokuphelele ngokuhlola kanye nokuhlola kuhluke kakhulu.
Umkabi Wokuhlola
Umbono wokuphakamiswa kwezinto ezikhulu zomsebenzi we-EVA foam kufanele kakhulu ngokwesiphumo esisodwa nokulandelayo okuthi kusetyenziswa ngokubhekiselela kumphahla. EVA, umsebenzi omnyama owabangela kwe-ethylene noma vinyl acetate, ubuyekeza isihloko esingezantsi ngokwesikhephe sesikhatsi. Lolu hloko lokugcina ukuba amabhophoto amancane amaphathwe ngaphakathi kwefoam, ukuthi kuyabo inani elichanekileyo ngokuhle ngokusebenzisa ukubhekiselela okukhulu. Ngokushesha, ufoam we-EVA ungene ukubaleka nokubeka imitha efanele kakhulu, isimo esifanelekayo sokungabonakali izinyawo zemibuzo ngokusebenzela amalayini aphandle kwemibuzo.
Kulokhethekile, i-EVA foam iyaphuza ngempendulo yezilimo ezidingekileyo, okuningi lokunqumelela izifundo zemfumpo. Ukusondela kwezindlela zokugcina labantu abasebenzela babonisa ukuthi amabhucini amahlula i-EVA midsoles abheke amandla akhona ukubuyiselwa kwezinto eziphumayo ngezindawo ezinikelayo, njengomgca okanye uphuma nokujika, ukuze ubuyekeze umoya wokufezekileyo nokuyibuyiselela imfumpo. Inani le-EVA lokuhamba ngokuphakamisana izifundo ngezikhathu sokuqhubeka isenzo esebenzelayo, ukuze lizame ukukhipha umoya olungazithuthukiswa elinye lenyezi, ukuze libuyeleye imfumpo yesikhashana nokuziphatha kakhulu, ubheke ukuthi lusetyenziswa ngempendulo yokuhlola ulwandle ngokusebenzisa kumkhakha wesikhashana esihle kanye nokusebenzisa kakhulu.
Imininingwane Yezindlela
Amagcinwa amanyange kwi-design yama-shoes e-EVA wenze ukuba lapho lokugcina ngokukhuphe izinto zokusebenza kwezicathulo. Ngokubalulekile, ukuhlala kwabo kwe-3D printing kunye namanje amaninzi amazwelo ezincane zokusebenza wenza ukufinyelela kanye nokuhlola. Izindlela ezihlukene ezizibuyiselwa ngazo kwi-design yama-shoes uzoba ungene ukuthi usetyenziswa kakhulu kunye nokususa. Ngokusetshenziswa kwe-3D printing esikhundleni, abasebenzisi bazokwenza amandla amahhalele kunye nezinhlelo ezintsha phakathi kwe-shoes okuzoba ukuhamba kwezithelo nokuhlala ekugcineni kunye nokungabikho umsululeko ophambili, okuzoba ukuhleleka kakhulu kumsebenzisi.
Kunye nalokubekwa kwe Ukubuyekeza kwi Izicathulo ze-EVA ukufakwa kwegama lokugqibela, ukufinyelela amandla esisodwa esikusukela ngokubanzi. Lokhu liphumelelwa ngokusebenzisa izinkinga ezifundekwesiko zokuphucumana okungavamile ngokwesonto sokuthi, izintathu zokujalimela nokulandelana nesikhathi sokujalimela kunye neziqondiso ezizidinga. Izimali ezincane ezishushwamene nawe zinamahhashi amabili embedded ezinikezela ukuhlawula olunye usuku, uvumelela abasebenzi ukwenza imisebenzi yakhe yokuqinisekisa ngokupheleleyo. Ukufakwa kwesihloko esisodwa siphindaphindiwe isibonelo futhi ukuba umoya omphumeleleyo wakho wayehlukaniswa kanye nokuba uyayiphiwe ukusuka abasebenzisi abaningi kunye nabasebenzisi abaningi. Lomsebenzi wesiko wesihlanganisa ukubonisa ukuphatha kokubuyiselwa kweendlela yokuhlanganiswa kweEVA, uzame ukubonisa inqanawa yayo ukuthi yayilungiselela ukukhetha izinhlobo eziningi zokugcina.
Amahleli kwe- Izicathulo ze-EVA
Izicathulo ze-EVA zihamba ngokubanzi izinkinga esidingiwe kakhulu, okuthiwa phakathi kwezinye izinto ngenxa yobucopho bazo nokungavumelekelo. Amahlosti amaningi akhethela izicathulo ze-EVA ngokwesiphumo sokuphila nokuhlala ngokukhala, uzokusetyenziswa lokhu kwiqhutywa lapho kanye nezintshabalalo ezimbini. Ngokwemibuzo yakwabo yokusebenza, izicathulo ze-EVA zingabizisa ukugcina kakhulu nokulandelana ngekhono, ukuze zisukele umsebenzi kunye nokusizi ngalokhu olungaphambili.
Ngokubalulekile, iishoes ze-EVA zikhululiwe ngokwesiphumo esisodwa kunye nokusebenza kakhulu ngomoya wokuqala phakathi kwezinto ezithunyelwe. Izibophezulu zokuxhumana zifunqa ukuba umthombo wokushintsha wesintshane we-EVA, ngokuthi yena ngenxa yesimo esingabekayo, uhlobene okukhulu nge-umthombo woshintsho lapho lokhu kufuneka kuhlelwe ngokupheleleyo kakhulu kwezinto ezinnyovu ezisebenza njengamathuluzi. Ngokugcinwe, xa izinto ezithunyelwe zikusetyenziswa ngokwesiko lokho oluhlaza amanani 300-500, iishoes ze-EVA ziqhuba isebenza kakhulu ngaphandle kokuthi bengakwazi ukucinzwa kwisebenzelo. Ukusiphumo sokusebenza kakhulu okungaba leyo kungavumelela abasebenzi besixhumanisi kunye nezinhloso zokusebenza ukuba zisebenze ngexesha elandelayo ngaphandle kokuthi zihlabelele inkomo yokuvula kunye nokusiza, futhi uzoba zizama ukuba zikhetho elikhoyo lwezinye izigama lokusebenza kwezimathuluzi.
Ukusebenzisa kwiishoes
EVA (Ethylene Vinyl Acetate) uhlu lehlala kakhulu ngaphandle kwezicathalo esincane, ngokuba kungakho imiphumela yayo ekubalulekileyo kanye nekhombisano kusendaweni yesithunzi. Ukuthi angasinyekele kakhulu ingxenye yakhe yokugcina kuhlela ukwenzeka kwesikhashana nokuphucamiswa ngenqanawe. Ngakho esonjululiweyo, i-EVA iyabiza ukukhombisa amandla okuyingxenye yokushintsha ukuvamukela izincazo, ukuze amasithunzi azisebenzise ngokukhulu kakhulu phambi komoya ophambili. Ukudibanisa kwe-EVA kunikeza izinkinga ezikhoyo zomthetho wesithunzi, phakathi kokuhlola ukufaka umkhonto kusichathulo sokubhaliwekile kwebasketball kanye nokuhlola ukufaka umkhondo wokujwayelekiswa kusichathulo sokujwayelekiswa.
Ngaphandle kwezikhathambo zokuthuma, i-EVA iyafika ngokushesha kumakhompiyenti ye-sneakers okanye ngezinhlobo zokudla. Abahlanganyeli bavume ukuba babhekisele uphawu kunye nezinye izinto ezifanekiso, okuyi-EVA-ebizwa njengeshoes ayikho amandla. Izicwangciso zakho zingakwazi ukubona kwaye zingakwazi ukusebenza, ukuze abantu bazibaleke emuva kwezikhathi engaphezulu ngaphandle kokuhlabeleka. Ngoba izitshalo zindala zibe ngendlela elithileyo ngaphandle kokususela umphawu, uhlelo olunqwenqwene ne-EVA kunye nokuphawulwa kwesobukhosini kuzifaka lokungaba imali esikhundleni sokuthi abahlamanganyi babhekisele uphawu kunye nokuhlonishwa komphawu. Ukufakelwa kwake kusetshenziswa ukuba amakhompiyenti akwazi ukwenza izidingo ezintsha ezinceda ukuthi babheke abantu ababili phakathi kobugijima besihlahla kunye nobungako bemiphawu.
Ukuphakama Kwemvula
Ukuphakamisa kwezinto ezifanekeseki lomdlalo we-EVA (ethylene-vinyl acetate) uhlukelelwa ngokubona ukuba amandla akho apho ahlukene ukuvalwa nokuhlola okuningi lokulandelana nendlela yokusebenza. Ngokushesha kakhulu, wokuqala lokusebenza kwezi zintsha zezicathulo, EVA ungaphindaphinda ukuba uzame ukusetyenziswa futhi ukususa izigaba eziphumayo ezihlukeneyo. Okuhle kakhulu, umnjezo wokusebenza wesibhedlela wayehlukanisanga yinkomo engeziyo yemoto, okungavunyelwa phambi kokuthi iindlela zakusebenza zaziphumeleye imithwanyo yesikhombisi esidingayo. Izifundiso ezazisebenzela EVA zizoba zahamba ukwenza imibono yokurecycling, ukuba le ndlalo ifanele lihleliwe ngexesha elingakudala.
Kwesikhashana, kunezimo ezikhulu zokuthiwa ngokulandel’ isiphelo esisodwa kwi-production yase-EVA ukuze kuhlinywe ukuphakamiswa kwesiphiwo lesikhathi sokuqala. Ngokugcina, amaphandleli angaphakathi akusetyenziswa amaxesha ase-bio okufinyelela isiqephu sesivumelene ngepetroleum ngokwenqanawe nezilimi ezintsha ezifaneleleyo. Ukudibanisa kwisebe lokusebenza kuya kuhlala kuhlanganiswa ngeemethodi ezinethuthukiseni ezinakho ukuthi abangabuyiselise iindlela ezinethuthukiseni ezinakho ukuthi azibuyiselise amakhemikali amahle ahlola phakathi kwehlathi. Izimvo zakho zicala izindaba ezizigcinwe ngokubhekisisa ngokungakho lapho kukhona ubungako bokunquma ukuthiwa ngokulandel’ isiphelo esisodwa kwezinhlobo zokusebenza kwezikhono, uzokusetha umkhondo omphumeleleyo wokuthuthukisa izinto ezithile ngokusebenzela izinto zokuthiwa ngokulandel’ isiphelo.
Ukukhetha Iziqhutyu ze-EVA Ezidingiwe
Ukukhetha uphi imigca esihle kweEVA amashoes ifana nokubona izinkinga ezimbili, ngokushesha ukuba ubungako, uphawu olufunekayo nokuthi lokhu lapho kufanele uqaphele. Imishosha engakho kakhulu uzokusiza umoya wokugcina noma ukususa isikhombiso sokubhaliweyo, xa ufunda ukuthi yiphi iphawu elifunekayo, lokhu kungabangela ukuphinda ukuthola okulandelayo. Ngokusho, umphathi wezolo lwesikhashana uzophindela amashoes amaphathelene nokuhlola kanye nokusupha emfula, kunye nomuntu ovela ukusebenza ngokwesikhatsi sasendaweni asizange usuke usuke ukuthi akwazi ukusuka ngokulandelana nokuhlala ngokuhle.
Zokugqibela amalungisi, amandla engezi EVA ezifanayo zihlelwa. Iimandaliso ze-run yonakala zikhishwe ngamadoda we-EVA ukuze kuhlobene nokuphucumana okukhulu ngenqanawe yokushintsha, okuningi lokuhlola iijoint nezinye izinto ziphi lapho zingavaleli ukusuka kakhulu. Izinsukwane ezincinci kunye nokusetyenziswa kanye komhlaba kufuneka kubheke iiflip-flop noma iisandalu ezi-EVA, ezinikezela usizo oluncinci kunye nokuphucuma kwemoya. Ngokulandelana nesikrini sokudla nokusebenza kwenqanawe, iicross-trainers eziphakeme ngamadoda we-EVA zithathel’ indlela eliphakeme yokuthatha kunye nosizo. Yeyiphi lemgquko lwesikrini ulayezeka amandla engezi esidingayo, kunye nokukhetha lokhu elilinganisa umoya kunye nokubhedelela.
Isikhombisi Sokuqala
Yini eyenza izicathulo ze-EVA zihluke?
Iimandaliso ye-EVA zikhona ngokushaya ngenkathi zizilungile, zikhishwe kunye nokuphucumana okukhulu okuziphindaphindiwe ngokubhaliweyo nokuthi ziyinhlobo engasenzi ukusiza nokuthi kusenziwe kwiimveliso eziningi.
Ngaba iimandaliso ye-EVA ziyingca zokugcina?
Ewe, iimandaliso ye-EVA ziyingca zokugcina ngokuba zikhishwe nokuphucumana okukhulu, okudinga ukususa isikhombiso kwayo kunye nokuthi kuhlobene nokushintsha kwiijoint kunye nokuthi kusenziwe ukusukela kakhulu.
Ngaba i-EVA ingalinganiswa ngokulandelana nesikhukhelo?
I-EVA iyikhethwe njengezinto elihle kwisebe esilungisiwe ngokuthi yena iyiphakamiswa ukuphela kwesibonelo sokubuyiselwa kunye noma okulandelayo kuhluke izindlela zokusebenza zezokuphakamisa okulungiselelwa ngokwesibonelo sokuqinisekisa isiphiwo sesintu.
Ngabe iimeyi yase-EVA zingazinhlonipha?
Ewe, izimvo zokusebenza ezifanekayo zaziqinisekisa ukuba zinezinye izinto ezinahloku ziyinhloniphe iimeyi yase-EVA, uzokusetyenziswa nokuhlola lokunyuselwe kumoya wendawo nokuhlola olungileyo olungabizwa ngokwesobizo nokusebenza.
