Ikhoza kugawidwa mu chigongono chachitali chotalikirapo ndi chigongono chachifupi.Utali wautali wa chigongono umatanthawuza kukula kwa chitoliro chakunja komwe kupindika kwake kumakhala kofanana ndi nthawi 1.5, ndiko kuti, R=1.5D;Chigongono chachifupi chimatanthawuza kuti utali wopindika wake ndi wofanana ndi m'mimba mwake wakunja kwa chitoliro, ndiye kuti, R= 1.0d.(D ndi mainchesi a chigongono, R ndi utali wopindika).5. Malingana ndi kalasi ya kuthamanga, pali mitundu pafupifupi 17 ya machubu, omwe ali ofanana ndi miyezo ya ku America, kuphatikizapo Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS;Sch80, SCH100, Sch120, Sch140, Sch160, XXS Awiri omwe amagwiritsidwa ntchito kwambiri ndi STD ndi XS
Chiyembekezo cha chitukuko cha mafakitale opangira zida zomangira
Dziko la China ndilomwe lili kale padziko lonse lapansi lopanga komanso kugwiritsa ntchito zipangizo zomangira.Kutulutsa kwa simenti, magalasi a mbale, zoumba zaukhondo, mwala ndi zida zapakhoma zakhala zikuyambira padziko lapansi kwa zaka zambiri.Pa nthawi yomweyo, khalidwe la zipangizo zomangira akupitiriza kusintha, kumwa mphamvu ndi zopangira amachepetsa chaka ndi chaka, mitundu yonse ya zipangizo zomangira latsopano kupitiriza akutuluka, zomangira kusunga kukweza, cangzhou payipi zida makampani kupanga ali ndi maziko olimba.Kampaniyo ili ndi mabizinesi opitilira 3,200, omwe mabizinesi 222 ali opitilira muyeso (ndalama zogulitsa zopitilira 5 miliyoni), kugwiritsa ntchito anthu 124,000.Zogulitsa zazikuluzikulu ndi mitundu yonse ya zitsulo zapadera, zitsulo zosapanga dzimbiri, zitsulo za carbon ndi machubu ena osasunthika, machubu otsika, apakati komanso othamanga kwambiri, machubu obowola mafuta ndi machubu ena;Mitundu yonse ya njira zitatu, njira zinayi, valavu, zochepetsera chitoliro cha chigongono;Mitundu yonse ya flange yachitsulo chosapanga dzimbiri, flange yopangidwa;Mitundu yonse ya chimango cha chitoliro, chida, choletsa kuphulika kwamafuta ndi zida zina zamapaipi;Mapaipi osiyanasiyana a polyethylene, mapaipi a polypropylene ndi mapaipi ena apulasitiki, magulu 16 amitundu yopitilira 370 yazinthu zopitilira 3500.Njira zopangira zimagwiritsa ntchito kuwotcherera kowotcherera kozungulira kozungulira kozungulira, kozungulira, kopanga, kopanga, kachitidwe kapakati pafupipafupi, kuzizira, kutulutsa kotentha ndi zina zotero.The pazipita processing awiri a payipi ndi 2020mm.Zogulitsazo zimagwiritsidwa ntchito kwambiri mu engineering ya tauni, uinjiniya wa petrochemical, kufala kwa gasi wakumadzulo-kum'mawa, kupanga zombo zapamadzi ndi uinjiniya wamagetsi a nyukiliya, ndi mapangidwe apachaka ndi mphamvu yamatani 25 miliyoni.Mu 2010, kuchuluka kwa mabizinesi omwe ali pamwamba pa kukula kwake kunafika 13 biliyoni, kukwera ndi 31.7% chaka chilichonse, kuwerengera 16.1% yamtengo wowonjezera wamakampani onse omwe ali pamwamba pa kukula kwake.Makampani opanga mapaipi a Cangzhou akupita patsogolo ku zolinga za "zitatu zam'mwamba" (zapamwamba, zida zapamwamba komanso zapamwamba) ndi "zitatu zapamwamba" (zapamwamba, kuthamanga kwambiri komanso mtengo wowonjezera), ndikulimbikitsa zida zopangira mapaipi. kufika matani 30 miliyoni.Cangzhou adzakhala odziwika bwino "zida mapaipi kupanga ndi R&D maziko" ndi "zida payipi likulu".Ndalama zomanga za "11th Five-year Plan" zafika pakatikati.Kukula kwamphamvu kwa misewu yayikulu, njanji ndi ndalama zina zomanga zomangamanga komanso kukwera kwachulukidwe kwazachuma wamba kumapangitsa kuti ntchito yomangayi ikhale pachimake.Panthawi imodzimodziyo, pansi pa maziko omanga anthu opulumutsa mphamvu ndi kulimbikitsa mphamvu zodziimira pawokha za dziko, mutu wa kusungirako mphamvu ndi luso lamakono adzakhala malo otentha kwambiri a mafakitale.
Nthawi yotumiza: Jun-20-2022