Ua ntej tsoprecision galvanized steel kavnyob rau hauv kev ua lag luam, tes-on thwmsim yuav tsum tau ua, thiab peb precision galvanized steel yeeb nkab Hoobkas muaj ib tug mob siab rau kev sim seem.Vim hais tias lub lag luam tseem ceeb rau precision galvanized steel kav yog kev tsim kho qhov hnyav kev ua haujlwm.Tab sis txoj haujlwm no muaj qhov yuav tsum tau ua rau lub zog tensile ntawm precision galvanized steel kav, yog li peb tuaj yeem txhim kho lub zog tensile ntawm precision galvanized steel kav?Tam sim no cia peb qhia nws rau peb.
Nyob rau sab saum toj ntawm daim ntawv teev npe, precision galvanized steel kav kuj tuaj yeem raug sim siv eddy tam sim no ntsuas es tsis txhob ntsuas hydraulic.Qhov kev sim siab lossis eddy tam sim no kev ntsuas qhov ntsuas qhov loj me yuav tsum ua raws li cov cai ntawm GB 3092. Kev ua haujlwm ntawm cov hlau yog lub hom phiaj tseem ceeb los xyuas kom meej tias nws qhov kawg siv tau zoo (kev ua haujlwm tshuab), uas nyob ntawm cov tshuaj muaj pes tsawg leeg thiab cov txheej txheem kho cua sov. cov hlau.Hauv cov txheej txheem steel yeeb nkab, raws li kev thov sib txawv, kev ua haujlwm ncab (precision galvanized steel yeeb nkab tensile lub zog, yield zog los yog precision galvanized steel yeeb nkab, elongation), hardness thiab durability lub hom phiaj, raws li zoo raws li qhov kub thiab tsis kub zog yuav tsum tau los ntawm cov neeg siv. , yog teev.
Thib ob, lub zog tensile ntawm precision galvanized steel kav ( σ b) Qhov siab tshaj plaws quab yuam (Fb) uas cov qauv bears thaum lub sij hawm tensile txheej txheem thaum lub sij hawm ntawm pob txha, tau los ntawm cov thawj cross-sectional cheeb tsam (Yog li) ntawm cov qauv ( σ ), Nws yog hu ua lub zog tensile ntawm precision galvanized steel kav (σ b), hauv N / mm2 (MPa).Nws qhia txog lub peev xwm siab tshaj plaws ntawm cov ntaub ntawv hlau los tiv thaiv kev puas tsuaj nyob rau hauv cov teebmeem tensile.Nyob rau hauv cov mis: Fb - lub siab tshaj plaws quab yuam los ntawm tus qauv thaum lub sij hawm tawg, N (Newton);Yog li - Thawj ntu ntu ntu ntawm cov qauv, mm2.Precision galvanized steel yeeb nkab: cov khoom siv hlau uas muaj qhov tshwm sim tshwm sim, thiab qhov kev ntxhov siab uas cov qauv tuaj yeem txuas ntxiv mus ntxiv yam tsis ntxiv dag zog (tseem muaj kev ruaj ntseg) thaum lub sij hawm ncab, hu ua precision galvanized steel yeeb nkab.Yog hais tias lub zog poob, lub siab thiab qis precision galvanized steel kav yuav tsum txawv.Chav tsev ntawm precision galvanized steel yeeb nkab yog N / mm2 (MPa).Upper precision galvanized steel yeeb nkab: Qhov siab tshaj plaws kev ntxhov siab ua ntej qhov pib ntawm kev quab yuam vim kev khoov ntawm cov qauv;Tsawg precision galvanized steel yeeb nkab: Qhov tsawg kawg nkaus kev nyuaj siab nyob rau hauv lub yielding theem thaum pib instantaneous nyhuv yog tsis xam.Nyob rau hauv cov mis: Fs - dabtsi yog khoov quab yuam thaum lub sij hawm tensile txheej txheem ntawm cov qauv (ruaj khov), N (Newton) Yog li - thawj ntu ntu ntawm cov qauv, mm2.Elongation tom qab tawg: ( σ) Hauv kev sim tensile, qhov feem pua ntawm qhov ntev ntxiv rau qhov ntsuas qhov ntev ntawm cov qauv tom qab tawg piv rau qhov ntsuas qhov ntev yog hu ua elongation.
Thib peb, nrog σ Qhia tias chav tsev yog%.Hauv cov mis: L1- ntsuas qhov ntev ntawm cov qauv tom qab tawg, hli;L0- Thawj qhov ntsuas qhov ntev ntawm tus qauv, mm.Nqe txo tus nqi: (ψ) Hauv kev sim tensile, qhov siab tshaj plaws txo qis hauv cheeb tsam hla ntawm qhov txo txoj kab uas hla ntawm cov qauv tom qab tawg yog hu ua feem pua ntawm qhov qub ntu ntu ntu, uas yog hu ua tus nqi txo qis. .nrog ψ Qhia tias chav tsev yog%.Nyob rau hauv cov mis: S0- Thawj ntu ntu ntu ntawm cov qauv, mm2;S1- Qhov tsawg kawg nkaus ntu ntu ntawm qhov txo txoj kab uas hla ntawm cov qauv tom qab tawg, mm2.Lub hom phiaj Hardness: Lub peev xwm ntawm cov ntaub ntawv hlau los tiv thaiv qhov indentation ntawm cov khoom tawv ntawm qhov chaw hu ua hardness.Raws li cov kev sim sib txawv thiab kev siv ntau yam, hardness tuaj yeem muab faib ua Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, microhardness, thiab high-temperature hardness.Muaj peb hom kev siv cov kav dej: Brinell, Rockwell, thiab Vickers hardness.Brinell hardness (HB): Siv ib txoj kab uas hla steel pob lossis lub pob nyuaj alloy
Post lub sij hawm: Lub Xya hli ntuj-10-2023