Namuhla, chain link ezicijilezisetshenziswa kabanzi ekuphileni, futhi isidingo sawo sikhula kancane kancane. Iningi lothango lokuxhumanisa amaketango libekwe ngaphandle. Abantu bazocela izingwegwe uma bechayeka emoyeni, elangeni nasemvuleni nsuku zonke. I-flower guardrail ikuvimbela kanjani ukugqwala kule ndawo?
Okokuqala, ucingo lokuxhumanisa iketango ukuvimbela ukugqwala ngokushintsha isakhiwo sangaphakathi socingo lokuxhumanisa iketango. Isibonelo, yenziwe ngama-alloys ahlukahlukene amelana nokugqwala, njengokwengeza i-chromium ne-nickel ensimbi evamile ukuze kwenziwe insimbi engagqwali. Indlela yesendlalelo sokuzivikela: Vala ingaphezulu lensimbi ngelendlalelo ukuze uhlukanise umkhiqizo wensimbi endaweni ezungezile egqwalayo ukuze uvimbele ukugqwala. Sebenzisa i-electroplating, i-hot-dipping, ukufafaza, ukucwilisa, ukufafaza nezinye izindlela ocingweni lwenkundla ukuze uvale ubuso bukasilika ngongqimba lwepulasitiki evimbela ukubola ukuze uvimbele ukugqwala kwensimbi ngamanzi nomoya.
Umehluko phakathiuthango lokuxhumanisa iketangoukucwilisa nokufafaza inetha lokubiya:
1. Ngokombono wokubukeka, isikhumba socingo olufakwe epulasitiki sikhulu kunocingo olufafazwe ngepulasitiki. Ipulasitiki ingafinyelela ku-1mm, kuyilapho isifutho singafinyelela ku-0.2mm kuphela. Kungase kwaziwe ngokuqina kodonga lwesikhumba sokucwilisa ipulasitiki ukuthi uthango lokucwilisa ipulasitiki lufanele ukusetshenziswa ngaphandle, kuyilapho uthango lokufafaza ngepulasitiki lufanele ukusetshenziswa endlini.
2. Ngokwemininingwane, inetha lothango elicwiliswe ngepulasitiki libukeka ligcotshisiwe, kanti inetha lothango olufafazwe ngepulasitiki lingabona izindawo zokusebenza (amaphuzu okuthengisa) ngesikhathi sokushisela, ngakho-ke inetha lothango olufakwe epulasitiki lingaphezulu.
3. Inethi yothango ecwiliswe ngepulasitiki ibushelelezi uma ithintwa ngesandla, futhi izwakala njengengcina, kuyilapho inethi yocingo olufafazwe ngepulasitiki izwakala ilukhuni (ayibonakali kakhulu kangangokuthi kulula ukuyibona lapho kokubili kuqhathaniswa).
4. Ngokwentengo yocingo, isikulufa esifanayo, ucingo olufuthwe lushibhile. Intengo ye-wap kasilika eqediwe efanayo kanye nothango olucwiliswe ngepulasitiki ishibhile. Lesi futhi isizathu sokuthi kungani kuthengwa amanetha othango lokucwilisa kakhulu.
Ukufana kweuthango lokuxhumanisa iketangoukucwilisa nokufafaza inetha lokubiya:
Zonke zenziwe nge-pvc (i-polyethylene), azinaphunga, azinabuthi, zizwakala njengengcina, zinokumelana nezinga lokushisa eliphansi kakhulu (izinga lokushisa eliphansi kakhulu lokusetshenziswa lingafinyelela -70~-100℃), ukusimama okuhle kwamakhemikhali, futhi lingamelana nama-acid amaningi nama-alkali. (Ayizweli kuma-asidi anezici ze-oxidizing), engancibiliki ezincibilikisini ezijwayelekile ekamelweni lokushisa, nokumunca amanzi aphansi. Izinzile; akulula ukugqwala yi-asidi ne-alkali; ukumelana nokushisa kanye ne-flame retardant (inani le-flame retardant ngaphezu kwama-40).
Isikhathi sokuthumela: May-06-2021