Ho lebelletsoe hore thepa e romelloang kantle karolong ea bone e tla fokola selemo le selemo
Matla a diromelwantle monongwaha a bontsha bofokodi ba tlhokeho ya lehae.Fensetere ea thekiso ea thepa ea kantle ho naha ea PVC e ile ea tsoela pele ho buloa kotareng ea pele, bophahamo ba thepa ea kantle ho naha e ne e le ea bobeli ho feta nako e tšoanang selemong se fetileng, e phahame haholo ho feta lilemong tse fetileng.Ka lebaka la theko e phahameng ea oli e sa tsoakoang mose ho maoatle, litaelo tsa kantle ho naha li ile tsa tsoela pele ho ntlafala ho tloha ka Hlakubele ho isa Mots'eanong, tlhokeho ea kantle ho nako ea mose ho maoatle e fokotsehile ho tloha ka Phuptjane ho isa Phupu, 'me ka ho theoha ha litšenyehelo tsa mose ho maoatle, litaelo tsa kantle ho naha li ile tsa fokotseha mme palo ea thomello ea kantle ho naha ea fokotseha. haholo.Palo ea thepa e romelloang kantle ho naha ea PVC ka Mphalane e ne e le lithane tse 96,600, 'me palo e ntseng e eketseha ea PVC ho tloha ka Pherekhong ho isa Mphalane e ne e le lithane tse 1,755,600, e eketseha ka 21.3% selemo le selemo.Karolong ea boraro, tlhokahalo ea phofo ea PVC India le Asia Boroa-bochabela e fokotsehile haholo ha e bapisoa le karolo ea pele le ea bobeli, 'me ka theko e theohang ea thepa e tala ea mose ho maoatle, theko ea PVC ea ka ntle e ile ea tsoela pele ho fokola, le litaelo tsa ka ntle tsa naha. ka Mphalane le Pulungoana li ne li se ntle, e leng se ileng sa fella ka hore bophahamo ba thomello ea thepa ea kotara ea bone kaofela bo fokotsehe.Ka lehlakoreng le leng, India e na le tšepo ea ho boloka chelete pele leano le khahlanong le ho lahla.Ka lehlakoreng le leng, ho na le tebello ea malapeng ea ho phahama ha theko, kahoo e eketsa theko.Leha ho le joalo, e hloka ho bona botsitso ba litaelo tsa kantle ho naha, mme litaelo tsa kantle ho naha ka Tšitoe li tla ama sekhahla sa thomello ea thepa ho pota Pherekhong selemong se tlang.
Iv.Kakaretso
PVC ea nako e khuts'oane ea metheo e fokolang ea 'nete le litebello tse kholo li ntse li le papaling, lehlakore la phepelo: calcium carbide e qala e sa tsitsa, PVC e tlase e qala ho eketseha hanyane, cheseho ea ho reka ka calcium carbide e ntlafalitsoe, phepelo ea' maraka ea khalsiamo ea carbide le tlhokahalo ea mantlha e bataletseng.Hona joale, lethathamo la bahlahisi ba PVC le ka lehlakoreng le phahameng, hammoho le nako ea nako ea selemo qetellong ea selemo, 'me ho ntse ho e-na le khatello e itseng qetellong ea phepelo.Qetello ea litšenyehelo: theko ea 'maraka ea calcium carbide ho boloka botsitso, ka lebaka la phaello e itseng ea k'hamphani ea calcium carbide e ile ea boela ea otla moeli oa litšenyehelo, boholo ba ts'ebetso e tsitsitseng ea theko ea 'maraka oa calcium carbide hajoale.Likhoebo tsa PVC tsa morao-rao tsa merafo tsa kantle tsa merafo tsa PVC li ntse li phahama le theko ea theko ea khalsiamo e theohileng tlas'a phokotso ea tahlehelo.Le hoja soda ea caustic e na le phaello empa theko ea chlorine ea metsi e fokotseha, chlor-alkali integration ea khoebo e fokotsa phaello.Qetello ea tlhoko: boemo bo tlase ba taolo ea khoebo ea lihlahisoa ha bo ntle, hammoho le tekanyo ea kamohelo ea theko ea thepa e tala ea PVC ha e phahame, tjantjello e tlase ea ho reka, ho atamela matsatsi a phomolo, ho thata ho ntlafatsa tjantjello ea nako e khuts'oane ea ho reka thepa.Litaelo tsa morao-rao tsa thomello li ntlafetse hanyane empa li hloka ho bona tsoelopele.
Ka kakaretso, tlhokahalo e tlase kapa butle-butle nakong ea nako ea selemo, metheo ea PVC e ntse e fokola.Tšusumetso ea morao-rao ea maikutlo a macro holim'a thepa e hlakile haholoanyane, December ke nako ea kenyelletso e matla ea maano, PVC ea nako e khuts'oane e ntse e lebelletsoe ho tsoela pele ka metheo le mefuta e mengata ea lipapali, e hlokolosi ho sheba potoloho ena ea PVC ka holimo ho bophahamo ba rebound. .
Nako ea poso: Dec-22-2022