1. Vim li cas yog tus kav hlau pheej yig nyob hauv Suav teb?
Keeb kwm tsis tshua muaj nqi ntawm cov hlau nyob hauv Suav teb yog feem ntau yog ntawm ** overcapacity **. Rau ib lub sijhawm ntev, Tuam Tshoj cov hlau kev lag luam tau tsim muaj ntau dua li kev xav tau hauv tsev. Qhov no oversupply nyob rau hauv kev ua lag luam tsav tsheb kim heev.
Ntau yam pab txhawb rau qhov kev hla no:
* ** Txoj cai {-} kev tsim khoom lag luam **: Yav dhau los tsoomfwv cov kev ntsuas pej xeem ntau ntau qhov kev loj hlob ntawm GDP kev loj hlob. Txij li steel ntau lawm pab txhawb rau kev lag luam cov zis tso zis tso tawm, txawm tias yog "khaws cia" GDP thiab kev ua haujlwm tsis muaj peev xwm thiab nthuav dav.
* ** ** Kev ua lag luam tsis xwm yeem ": Kev ua lag luam tau pom los ntawm cov khoom lag luam qis {{}}} {}}}}}} {kawg, cov hlau tshwj xeeb. Qee cov neeg me me me me nrog cov nqi qis dua thiab cov nqi zog (nyob ib ncig ntawm 300-150 yuan / Tuj), tsim kev sib tw rau hauv qab ntawm tus nqi.
* ** Tshem tawm cov khoom siab "
2. Dab tsi yog tus nqi ntawm A36 hlau ib kg?
Ib qho nqi tsis ntev los no rau A36 steel tsis muaj nyob hauv cov txiaj ntsig tshawb. Txawm li cas los xij, kev siv los ntawm thaum ntxov 2025 teev tus nqi ntawm ** 3,750 yuan rau ib tuj ** Rau Astm A36 Hlau Hlau.
Txhawm rau hloov qhov no rau ib lub -} kilogram nqi:
* ** 3,750 yuan / tuj ÷ 1,000 kg / tuj {{{}} yuan / kg **
Thov nco ntsoov tias qhov no yog ib qho ntsiab lus taw tes thiab tus nqi tiag tiag tuaj yeem ua rau muaj nuj nqis xws li, daim ntawv, thiab lwm yam). Rau cov lus qhia meej meej, nws yog qhov zoo tshaj plaws rau cov neeg xa khoom ncaj qha.
3.sis A36 muaj zog?
Yog, A36 cov hlau suav hais tias yog cov khoom siv muaj zog rau cov qauv txheej txheem dav dav. Nws lub zog yog txhais los ntawm nws cov khoom siv mechanical:
* ** Xij lub zog **: Yam tsawg kawg nkaus ntawm ** 250 MPa (36,000 PSI) **. Qhov no yog qhov kev ntxhov siab uas cov hlau pib deform mus tas li, thiab nws yog cov khoom tseem ceeb tom qab "36" hauv nws lub npe.
* ** Lub zog tensile **: ranges los ntawm ** 400 rau 550 mpa (58,000 rau 80,000 psi) **. Qhov no yog qhov siab tshaj plaws cov hlau tuaj yeem tiv thaiv tau thaum tab tom ncab lossis rub tawm ua ntej tawg.
Nws muaj kev sib npaug zoo ntawm lub zog, ductility (nws muaj peev xwm elongate los ntawm 20% lossis ntau dua ua ntej kev xaiv, ua rau nws muaj ntau yam kev xaiv rau kev tsim kho thiab tsim khoom.
4. Cov hlau yog qhov pheej yig dua?
Cov lus nug "uas cov hlau yog cov pheej yig dua" nyob ntawm txhua qib tshwj xeeb tau muab piv. Feem ntau, nyob rau hauv tib pawg (piv txwv li, carbon hlau), tus nqi cuam tshuam los ntawm cov tshuaj muaj pes tsawg leeg.
Ib qho kev sib piv sib piv tuaj yeem ua tau ntawm ** A36 ** thiab ** ** SAE 1018 **:
* ** A36 ** yog ib tug ** "cov qauv khoom" ** STEEL. Nws cov kev faib tawm yog ua tiav raws li kev ua tiav cov khoom siv yam tsawg kawg nkaus (zoo li lees paub lub zog), nrog ntau hloov hauv nws cov tshuaj lom neeg muaj pes tsawg leeg.
* ** ** SAE 1018 ** yog E ** "Tshuaj lom neeg tshuaj lom neeg" ** hlau. Nws cov kev faib tawm yog ua raws cov ntsiab lus tshwj xeeb, xws li carbon hauv ib ncig 0.18%).
5. Puas yog A36 pheej yig dua 1018?
Yog lawm, feem ntau ** A36 yog qhov pheej yig dua 1018 **. Lub ntsiab yog vim li cas yog qhov sib txawv hauv kev tswj ntau lawm. Vim tias A36 yuav tsum tau ntsib cov cuab yeej cuab yeej tab sis muaj cov txheej txheem pleev xim rau cov khoom siv ntau ntxiv, uas yuav pab txo qis cov nqi tsim khoom. SAE 1018, nrog nws cov kev yuav tsum tau siv tshuaj kom nruj, feem ntau cuam tshuam nrog kev tswj hwm ntau thiab cov txheej txheem ntau lawm, ua rau tus nqi siab dua.
