Kwiiprojekthi zobunjineli ezifihlakeleyo—ezifana neetonela, ii-subways, kunye nee-urdue conditioners ezingaphantsi komhlaba—ii-membranes ezithintela amanzi azisebenzi nje njengemiqobo yokwahlula amanzi, kodwa zikwasebenza “njengezinto eziguquguqukayo” ezithatha inxaxheba ekulawuleni uxinzelelo lwesakhiwo. Njengomvelisi okhethekileyo kwicandelo le-geosynthetics, iShandong Hongyue Environmental Engineering Co., Ltd. (ebizwa ngokuba yi-“Hongyue Environmental”) isebenzise ubuchule bayo obunzulu bobuchwephesha kwi-EVA (Ethylene-Vinyl Acetate Copolymer) ii-membranes zokungangeni manzi ukuze zenze inkqubo yokwakha yesayensi, eqinileyo, nesemgangathweni. Ngeendlela ezintathu eziphambili—“ukukhetha izinto ngokuchanekileyo, ukuwelda okucokisekileyo, kunye nokuxinana okusemgangathweni”—inkampani isebenzisa ngokupheleleyo iipropati ezikhethekileyo zee-membranes ze-EVA, kubandakanya ukunwebeka okuphezulu, ukumelana nobushushu obuphantsi, kunye namandla okukrazula, ngaloo ndlela iseka ukhuselo lokungangeni manzi olungenakungenwa kwiiprojekthi ezahlukeneyo zobunjineli.
Inyathelo Lokuqala: Ukukhetha Izinto Ezichanekileyo Nokulungiselela I-Substrate—Ukubeka Isiseko Esingenasiphako
Iprojekthi yokukhusela amanzi esemgangathweni ophezulu iqala ngolawulo oluchanekileyo lwezinto. Iimembrane ze-EVA zokukhusela amanzi zeHongyue Environmental zisebenzisa i-Ethylene-Vinyl Acetate Copolymer yexabiso eliphezulu njengezinto zazo eziphambili; zibonisa ukuthamba okufana nerabha, zinokuguquguquka okuhle kakhulu kubushushu obuphantsi (zigcina ukuguquguquka nokuba zibanda kakhulu ukusuka kwi -30°C ukuya kwi -35°C), kwaye zinamandla aphezulu okukrazula. Ngaphambi kokwakhiwa, i-substrate kufuneka ilungiswe ngokungqongqo: umphezulu wesiseko kufuneka ube tyaba, uqine, kwaye ungabi naziphazamiso okanye izinto ezibukhali, ngelixa ngaxeshanye uqinisekisa ukuba ayinamanzi amileyo, amabala eoyile, kunye nothuli. Ngokuxhomekeke kubukhulu beprojekthi kunye nendawo yayo yokusebenza ethile, iHongyue Environmental inikezela ngeemembrane zokukhusela amanzi ze-EVA ezenziwe ngokwezifiso ngobukhulu obahlukeneyo—ukusuka kwi-0.5 mm ukuya kwi-2.5 mm—ukuqinisekisa ulungelelwaniso olufanelekileyo phakathi kokusebenza kwezinto kunye neemfuno zobunjineli.
Inyathelo Lesibini: Iinkqubo Ezinzima Zokuwelda—Ukufumanisa Ixesha Lokuphila Lenkqubo Yokuthintela Ukungangenisi Nqanaba
Ngexesha lokwakha kwindawo, ukuthembeka kwe-membrane yokuthintela amanzi kuxhomekeke kwi-90% kumgangatho we-welding yomoya oshushu. Iqela lobuchwephesha le-Hongyue Environmental ligxininisa ukuba ingcamango engafanelekanga yokuphatha i-welding nje "njengomsebenzi wokugubungela" kufuneka ilahlwe; endaweni yoko, kufuneka ibekwe phambili njengenkqubo ebalulekileyo. Ukwakhiwa kufuneka kwenziwe kusetyenziswa oomatshini abakhethekileyo be-welding okanye izibhamu ze-welding zomoya oshushu, kunye nobushushu bokuphuma komoya obulawulwa ngokungqongqo ngaphakathi koluhlu lwe-320°C ukuya kwi-380°C. Ngaphambi koku-welding, ububanzi bokugqithana phakathi kwamaphepha e-membrane akufutshane kufuneka bulawulwe ngokuchanekileyo phakathi kwe-70 mm kunye ne-100 mm, kwaye kufuneka kusetyenziswe ibrashi yentsimbi ukususa ngokupheleleyo naluphi na uthuli lomphezulu okanye iileya ezixilisiweyo kwiindawo ezigqunyiweyo. Ngexesha lenkqubo yoku-welding, amaqondo obushushu aphezulu asetyenziswa ukunyibilikisa umphezulu wezinto ze-EVA, kulandele ukusetyenziswa koxinzelelo lokudibanisa iileya kwiyunithi enye, edibeneyo. Ukuqinisekiswa emva koku-weld kubandakanya inkqubo yokuhlolwa eqatha yamanyathelo amathathu: Okokuqala, kwenziwa uhlolo olubonakalayo ukuqinisekisa ukuba umthungo we-weld ubonakala njengokugqitywa okufanayo, okucacileyo, okufana neglasi, okungenamaqamza okanye imibimbi. Okwesibini, kwenziwa uvavanyo lwe-mechanical peel; xa amandla okutsalwa esetyenziswa ngokuthe nkqo kumthungo we-weld, kufuneka ahlale ehleli ngaphandle kokuqhekeka. Okwesithathu, apho kuyimfuneko, kwenziwa uvavanyo lokunyuka kwamaxabiso ukuqinisekisa ukuba nakuphi na ukubola koxinzelelo kuhlala ngaphakathi kwemida emiselweyo.
Inyathelo lesi-3: Uxinzelelo lweSayensi kunye nokubeka—Ukususa umngcipheko “weeWelds zobuxoki”
Ngexesha lokwakhiwa kwiindawo ezintsonkothileyo—ezifana nee-tunnel crowns—ubunzima bezinto ezizilawulayo bunokubangela ukuba zigobe ngokulula, nto leyo ekhokelela “kwii-welds zobuxoki” (i-seams ezingaphelelanga okanye ezibuthathaka). Ukhuseleko lweNdalo lwaseHongyue lugxininisa ngokukodwa imfuneko yokusebenzisa indlela “yokuxinanisa ngeendawo kunye ne-segmented welding”. Oku kubandakanya ukuqala ngokubopha i-membrane yokuthintela amanzi kwi-substrate kusetyenziswa ii-slings ezikhethekileyo ezibekwe malunga ne-300mm ukusuka kwenye; uxinzelelo emva koko lukhutshwa icandelo ngecandelo, kunye ne-welding eyenziwa ngaxeshanye. Le ndlela ithintela ngokufanelekileyo ukwenzeka kwe-welds zobuxoki ezibangelwa kukugoba kwezinto phantsi kobunzima bazo, ngaloo ndlela kuqinisekiswa umanyano oluqinileyo nolusondeleyo phakathi kwe-membrane yokuthintela amanzi kunye nesakhiwo senkxaso esiyintloko. Ngaphezu koko, ii-membrane zokuthintela amanzi ze-EVA zibonisa ukuhambelana okubanzi nee-adhesives ezahlukeneyo; ngexesha lonyango oluneenkcukacha lweekona, ukungena kwepayipi, kunye nezinye iindawo ezintsonkothileyo, ii-adhesives ezikhethekileyo zingasetyenziswa ukufikelela ekutywinweni okukhawulezileyo nokusebenzayo, ngaloo ndlela zonyusa ukungangeni ngokupheleleyo kwenkqubo yokuthintela amanzi.
Ukusebenzisa olu seti lweendlela zokwakha ezisemgangathweni, ii-membrane ze-EVA zokukhusela amanzi ze-Shandong Hongyue Environmental Protection ziyakwazi ukubonisa ngokupheleleyo iingenelo zazo eziphambili—kuquka ukumelana okugqwesileyo ne-hydrolysis, ukumelana nokungena kweengcambu, kunye nobomi obude benkonzo.
Ixesha leposi: Meyi-09-2026
