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China's PVC mbiri magonhi uye windows kugadzirwa kwapinda munguva yekuchinja

China's PVC mbiri magonhi uye windows kugadzirwa kwapinda munguva yekuchinja

Yave hafu yezana remakore kubva munyika yekutanga PVC magonhi epurasitiki nemahwindo akabuda muFederal Republic yeGermany muna 1959. Rudzi urwu rwekugadzirwa kwezvinhu PVC sezvinhu zvakasvibirira zvine zvinhu zvakanakisa zvemichina, kuramba kwemamiriro ekunze (ultraviolet resistance) uye kunonoka kwemoto., Uremu hwechiedza, hupenyu hurefu, kugadzira uye kuisirwa zviri nyore, kugadzirisa kwakaderera, uye mutengo wakaderera, nezvimwewo, zvakafambira mberi zvikuru munyika dzakabudirira.Iyo yemba yePVC profiled gonhi uye hwindo indasitiri yakaonawo makore makumi matatu ebudiriro.Kubva panguva yekusuma uye nekukurumidza kukura nguva, ikozvino yapinda munguva yekuchinja.

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Muchirongwa che "Eleventh Five-Gore", China yakaisa pachena chinangwa chekuderedza kushandiswa kwesimba munyika yose nezvikamu zvinopfuura makumi maviri muzana.Zvinoenderana nedata rekuongorora rakaburitswa nemadhipatimendi akakodzera, kushandiswa kwesimba rekuvaka kweChina parizvino kunotora makumi mana muzana ehuwandu hwemashandisirwo emagetsi, inomira yekutanga pakati pemhando dzese dzesimba rekushandisa, iyo 46% inorasika kuburikidza nemagonhi nemahwindo.Naizvozvo, kuvaka kuchengetedza kwesimba kwave chiyero chakakosha kudzikisa simba rekushandisa, iro rakakwezva vanhu vazhinji, uye zvakare iri imwe yezvinofambisa kukurumidza kusimudzira kwemusuwo wepurasitiki wepamba uye indasitiri yemahwindo.Nerutsigiro rwegwaro renyika re "simba rekuchengetedza uye kuderedza emission", iyo musika wepamba inoda application yakasvika kupfuura 4300kt muna 2007, iyo chaiyo yakabuda yakaverengera 1/2 yehuwandu hwekugadzira (kusanganisira 2000kt yakaderera zvigadzirwa), huwandu hwekutengesa kunze kwenyika. yaive ingangoita 100kt, uye kushandiswa kwepagore kwePVC resin Inenge 3500kt kana kupfuura, ichiverengera kupfuura 40% yenyika yangu yakazara PVC resin kubuda.Pakazopera 2008, pakanga pane mitsara yekugadzirwa kweprofile inodarika zviuru gumi muChina, ine hunyanzvi hwekugadzira inopfuura 8,000kt, uye anopfuura zviuru gumi emabhizinesi ekugadzira.Muna 2008, chikamu chemusika chemikova yepurasitiki yenyika yangu nemahwindo muzvivakwa zvekugara zvichangobva kuvakwa mumaguta nemataundi yasvika kupfuura 50%.Panguva imwecheteyo, kuchengetedza uye kuchengetedza zvakatipoteredza nyaya dzemagonhi epurasitiki nemahwindo zvakagamuchirawo pfungwa dzevanhu sekuchengetedza simba.


Nguva yekutumira: Jan-12-2021