Seamless steel yeeb nkab muaj qhov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.Cov yeeb nkab steel thiab cov hlau puag ncig thiab lwm yam steel hlau, piv rau tib yam dabtsi yog khoov thiab torsion lub zog, sib zog, yog ib qho kev lag luam hla ntu steel, dav siv hauv kev tsim cov qauv thiab cov khoom siv, xws li roj drilling rods, automotive tsav shafts , tsheb kauj vab thav duab thiab kev tsim kho ntawm steel scaffolding siv nyob rau hauv kev tsim cov hlau yeeb nkab nplhaib qhov chaw, tuaj yeem txhim kho kev siv cov khoom siv, yooj yim rau kev tsim cov txheej txheem, txuag cov ntaub ntawv thiab lub sijhawm ua haujlwm, tau dav siv los tsim cov yeeb nkab steel.
Mechanical zog
Cov khoom siv hlau hlau yog los xyuas kom meej tias cov khoom siv steel kawg siv (cov khoom siv tshuab) ntawm cov cim tseem ceeb, nws nyob ntawm cov tshuaj muaj pes tsawg leeg ntawm cov hlau thiab kev kho cua sov.Nyob rau hauv cov txheej txheem steel yeeb nkab, raws li kev siv sib txawv, qhia cov khoom tensile (lub zog tensile, yield zog los yog yield point, elongation) thiab hardness, toughness indicators, muaj cov neeg siv yuav tsum tau ntawm siab thiab tsis kub kev kawm, thiab lwm yam.
① Tensile zog (σb)
Cov qauv hauv qhov nro, qhov siab tshaj plaws quab yuam (Fb) tiv thaiv thaum lub sijhawm rub, muab faib los ntawm kev ntxhov siab (σ) tau los ntawm qhov chaw hla ntu ntu (Yog li) ntawm cov qauv, hu ua tensile zog (σb), chav tsev yog N/mm2 (MPa).Nws sawv cev rau lub peev xwm siab tshaj plaws ntawm cov khoom siv hlau los tiv thaiv kev puas tsuaj hauv qhov nro.Cov mis laij lej yog
Qhov twg: Fb - lub zog siab tshaj plaws uas txhawb nqa los ntawm cov qauv thaum nws rub, N (Newton);Yog li - qhov qub ntu ntu ntawm cov qauv, mm2.
②Yield point (σs)
Nrog cov txiaj ntsig tshwm sim ntawm cov khoom siv hlau, cov qauv hauv cov txheej txheem ncab ntawm lub zog tsis nce (tseem nyob twj ywm) tuaj yeem txuas ntxiv mus rau elongate qhov kev ntxhov siab, hu ua yield point.Yog tias lub caij nplooj zeeg tshwm sim, yuav tsum muaj qhov sib txawv ntawm cov ntsiab lus siab thiab qis.Chav tsev ntawm qhov taw tes tawm yog N / mm2 (MPa).
Lub ntsiab lus siab tshaj tawm (σsu): qhov siab tshaj plaws ua ntej cov qauv yields thiab lub zog ua ntej ntog;qhov taw tes qis qis (σsl): qhov kev ntxhov siab tsawg kawg nkaus hauv lub sijhawm tawm los thaum qhov kev hloov pauv thawj zaug tsis suav nrog.
Cov qauv rau kev suav cov ntsiab lus tawm los yog: qauv: Fs - lub zog tawm los (qhov tsis tu ncua) thaum lub sij hawm tensile ntawm cov qauv, N (Newton) Yog li - thawj ntu ntu ntawm cov qauv, mm2.
③ Ntev tom qab so (σ)
Hauv kev sim tensile, qhov feem pua nce ntawm qhov ntev ntawm cov qauv tom qab nws tau rub los ntawm nws cov cim mus rau qhov ntev ntawm qhov cim thawj yog hu ua elongation.Nws yog qhia raws li σ hauv %.Muab xam raws li: formula: L1 - qhov ntev ntawm cov qauv tom qab rub tawm nws cov cim, mm;L0 - qhov ntev ntawm tus qauv tus cim cim, mm.
④ Fractional shrinkage tus nqi (ψ)
Hauv kev sim tensile, qhov siab tshaj plaws shrinkage ntawm qhov chaw hla ntu ntawm cov qauv ntawm nws qhov shrinkage tom qab rub tawm raws li ib feem pua ntawm qhov qub ntu ntu yog hu ua fractional shrinkage tus nqi.Nws yog qhia raws li ψ hauv %.Cov mis laij lej yog raws li nram no
Qhov twg: S0 - thawj qhov chaw hla ntu ntawm cov qauv, mm2;S1 - qhov tsawg kawg nkaus ntu ntu ntawm qhov shrinkage tom qab cov qauv raug rub tawm, mm2.
⑤ Hardness index
Lub peev xwm ntawm cov khoom siv hlau los tiv thaiv qhov indentation ntawm ib qho khoom tawv rau hauv qhov chaw, hu ua hardness.Nyob ntawm txoj kev sim thiab qhov kev thov, hardness tuaj yeem muab faib ua Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, microhardness thiab kub hardness.Rau lub raj feem ntau yog siv Brinell, Rockwell, Vickers hardness peb.
Shandong Xinjie Hlau Khoom Co., Ltd. yog ib lub tuam txhab steel yeeb nkab ua ke kev tsim khoom, kev ua haujlwm thiab kev ua haujlwm, feem ntau koom nrog: seamless steel yeeb nkab (thick-walled seamless steel yeeb nkab, qis thiab nruab nrab siab boiler raj, alloy steel yeeb nkab, square moment yeeb nkab , kub siab boiler raj, roj av tawg yeeb nkab, tshuaj chiv yeeb nkab, tshwj xeeb steel yeeb nkab), stainless hlau (stainless steel seamless yeeb nkab, stainless hlau welded yeeb nkab, stainless hlau phaj, imported stainless hlau yeeb nkab / phaj, stainless hlau round bar, stainless hlau square moment yeeb nkab), stainless hlau Profile (I-beam, lub kaum sab xis steel, channel steel) thiab lwm yam khoom.
Post lub sij hawm: Jun-01-2023