Imodi yokuthengisa evamile ye-PVC powder ezweni lethu isakazwa ikakhulukazi "ngumsabalalisi/i-ejenti".Okusho ukuthi, amabhizinisi amakhulu okukhiqiza impuphu ye-PVC azosabalalisa kubahwebi, abathengisi bese bedayisela ifomu letheminali elingezansi komfula.Le modi yokuthengisa ngakolunye uhlangothi ngenxa yokuhlukaniswa kokukhiqizwa kwe-PVC powder kanye nokumaketha, amabhizinisi okukhiqiza agxile esifundeni esisenyakatho-ntshonalanga, indawo yokusetshenziswa igxile kakhulu eNyakatho China, eMpumalanga China naseNingizimu China nakwezinye izindawo;Ngakolunye uhlangothi, ukuhlushwa kokuphela kokukhiqizwa kwempuphu ye-PVC kuphakeme kakhulu, kodwa ukuphela kokusetshenziswa kuhlakazeka kakhulu, futhi kukhona amabhizinisi emikhiqizo emincane naphakathi nendawo ezansi nomfula.
Abahwebi, njengesixhumanisi esimaphakathi, badlala indima yokugcina amanzi kulo lonke uchungechunge lohwebo.Ngokusho kwesimo sabo sezezimali kanye nesibikezelo sentengo ye-PVC powder, abadayisi bazolungisa i-inventory, bakhethe ukuthi bangagcina yini endaweni, ukuze bathole inzuzo ekukhuphukeni kwentengo ye-PVC powder esikhathini esizayo.Futhi izosebenzisa i-hedging yesikhathi esizayo ukugwema ubungozi kanye nenzuzo yokukhiya, okuthinta kakhulu intengo yendawo ye-PVC powder.
Ngesikhathi esifanayo, i-PVC powder iyimpahla evamile eqhutshwa yisidingo sasekhaya.Iningi lomkhiqizo waseShayina lihlinzekwa ezindaweni ezithengiswayo nakwezinye izimboni ezihlobene ngokukhiqizwa kwamapayipi, amaphrofayili, iphansi, amabhodi neminye imikhiqizo.I-Vinyl PVC powder igeleza ikakhulukazi emaphaketheni ezokwelapha, amashubhu okufakwayo, amathoyizi nezinye izimboni.Ingxenye yokuthunyelwa kwempahla kwamanye amazwe incane uma kuqhathaniswa, futhi ukuncika komlando ekuthengisweni kwamanye amazwe kushintshashintsha phakathi kuka-2% -9%.Kodwa-ke, kule minyaka emibili edlule, ngenxa yokungafani kokuhlinzekwa kwezidingo kanye nokufunwa komhlaba wonke kanye nokushintsha komehluko wamanani phakathi kwasekhaya nezangaphandle, ingxenye ye-PVC powder yaseChina ethunyelwa ngaphandle iye yanda, yaba isengezo esiqinile esidingweni se-PVC powder.Ngo-2022, umthamo wokuthekelisa we-PVC powder e-China wafinyelela kumathani ayi-1,965,700, inani eliphakeme eminyakeni yamuva nje, futhi izinga lokuthembela kwamanye amazwe lalingu-8.8%.Kodwa-ke, umthamo wokungenisa imali uhlala uphansi ngenxa yokuntuleka kwenzuzo yezindleko kanye nesikhala se-arbitrage, futhi ukuncika kwamanye amazwe kushintshashintsha phakathi kuka-1% -4% eminyakeni yamuva.
Izindlu ezithengiswayo ziyindawo ebalulekile yokufunwa kwe-PVC powder.Cishe i-60% yemikhiqizo ephansi ye-PVC powder isetshenziswa ezindaweni ezithengiswayo.Indawo esanda kuqaliswa yezindlu ezithengiswayo ingamela inkambiso yesidingo semboni yezokwakha ye-PVC powder esikhathini esizayo.Ezimweni zokufaka isicelo se-PVC powder ekwakhiweni kwezindlu zangempela, amapayipi okukhipha amanzi asetshenziswa ikakhulukazi endlini yangasese (indlu yangasese, ikhishi, i-air conditioning), ngokuvamile phakathi nezigaba zamuva zokwakha.Ipayipi lokucupha/ukufaka lisetshenziswa ngokushesha nje lapho liqalwa futhi liqhubeka kuze kube yilapho phezulu kuvaliwe.Amaphrofayili asetshenziswa ngemuva kwezindawo ezithengiswayo, ikakhulukazi iminyango yensimbi yepulasitiki kanye neWindows, futhi i-aluminium yebhuloho ephukile inokuncintisana okusobala.Iphansi/i-wallboard isetshenziswa esigabeni sokuhlobisa.Njengamanje, iphansi lisathunyelwa ngaphandle.I-Wallboard ingashintsha upende we-latex, iphepha lodonga nokunye.
I-PVC powder isetshenziswa maphakathi nangemuva ekugcineni kwezindlu ezithengiswayo iyonke.Umjikelezo wokwakhiwa kwezindlu ezithengiswayo ngokuvamile cishe iminyaka emi-2, futhi isikhathi sokuhlushwa se-PVC powder sivame ukusetshenziswa ngonyaka owodwa nesigamu ngemva kokwakhiwa okusha.
Ethintwe izici zokuncipha kwendawo yokwakha yendawo ethengiswayo, isidingo se-PVC powder yokwakha ngo-2022 sizophuma ezingeni eliphezulu futhi sibonise inkambiso eyehlayo.Ngokuthuthukiswa kwenqubekelaphambili yokwakha, isidingo se-PVC powder singathuthuka ngo-2023, kodwa ngokombono wokwakhiwa okusha, ububanzi bokuthuthukiswa kwesidingo se-PVC powder esikhathini esizayo bungase bulinganiselwe.
I-PVC powder inezici ezijwayelekile zonyaka.Ngenxa yokuthi imboni yezokwakha ezansi nomfula ithinta kakhulu izinkathi zonyaka nesimo sezulu.Ngokuvamile, impushana ye-PVC ibuthakathaka kakhulu kwikota yokuqala, futhi isidingo siqine kakhulu engxenyeni yesibili neyesine, okuyisizini ephakeme kakhulu evamile.Ngokusekelwe ebudlelwaneni phakathi kwentengo, i-inventory kanye nesidingo, le datha ingase futhi imele izici zonyaka ze-PVC powder ngokwezinga elithile.Lapho ukunikezwa kuphezulu kwikota yokuqala, isidingo siphansi ngesizini, uhlu lwe-PVC luveza inkambiso yokuncipha kwempahla esheshayo, futhi uhlu lwempahla luyancipha kancane kancane kwikota yesibili kuya kwikota yesine.
Ngokombono wezindleko, i-PVC ingahlukaniswa ngezinhlobo ezimbili zezinqubo ngokusho komthombo wezinto zokusetshenziswa, inqubo ye-calcium carbide ibalwa cishe ngama-80%, iyisici esiyinhloko sokushayela esithinta ukuthambekela kwemakethe, inqubo ye-ethylene ibalwe ngokuqhathaniswa. ingxenye encane, kodwa inomphumela osobala wokufaka esikhundleni sezinto ze-carbide, inomphumela othile wokulawula emakethe.Impahla eluhlaza eyinhloko yenqubo ye-calcium carbide i-calcium carbide, eyenza cishe u-75% wezindleko ze-PVC futhi iyisici esibaluleke kakhulu esithinta ukuguqulwa kwezindleko.Ngokuhamba kwesikhathi, akukho ukulahlekelwa noma inzuzo eyengeziwe esimeme.Inzuzo iyisici esiyinhloko okufanele icatshangelwe ekukhiqizeni amabhizinisi.Njengoba amabhizinisi ahlukene enamakhono ahlukene okulawula izindleko zokukhiqiza, lapho ebhekene nemakethe efanayo, amabhizinisi anekhono eliphansi lokulawula izindleko azoba ngabokuqala ukulahlekelwa, okuwaphoqa ukuthi alungise amasu awo okukhiqiza, futhi isu eliyinhloko ukulungisa ijubane lokukhiqiza. ukukhiqiza nokulawula ukuphuma.Ngemuva kokubuyiselwa kokunikezwa kanye nesidingo kusimo sokulingana, uhlobo lwentengo luzoshintsha.Izinzuzo zibuyele kwesejwayelekile.Isici esibucayi kakhulu enzuzweni yinani ngokwalo.Inzuzo ivame ukuba ngcono njengoba amanani enyuka futhi enkontileka njengoba ehla.Lapho inkambiso enkulu yentengo yezinto ezingavuthiwe ibonakala ichezuka esimweni esijwayele ukuya esimweni senzuzo enkulu.I-PVC powder iyisisetshenziswa esikhulu kunazo zonke semikhiqizo ye-chlorine, ngakho-ke i-PVC powder kanye ne-caustic soda yimikhiqizo emibili ebaluleke kakhulu esekelayo, indlela ye-calcium carbide ye-PVC powder amabhizinisi cishe wonke asekela i-caustic soda, ngakho-ke i-PVC powder ekulahlekelweni kwekhono eliqinile lokumelana, iningi. amabhizinisi azobheka inzuzo ehlanganisiwe ye-caustic soda ne-PVC ukulungisa isu lokukhiqiza.
Isikhathi sokuthumela: Mar-15-2023