Dab tsi yog qhov tseem ceeb cuam tshuam rau tus nqi ntawm Q215 steel yeeb nkab?
Tus nqi ntawm cov khoom siv raw yog qhov txiav txim siab ua tau zoo, tshwj xeeb tshaj yog kev hloov kho ntawm cov nqi billet ncaj qha cuam tshuam tus nqi ntawm cov yeeb nkab tiav. Kev hloov pauv ntawm kev ua lag luam xav yuav ua rau tus nqi hloov pauv, thiab tus nqi feem ntau siab dua thaum lub caij ua haujlwm siab. Qhov sib txawv ntawm cov txheej txheem ntau lawm ua rau cov kav dej sib txawv, thiab cov kav dej sib txawv yog 15-25% kim dua cov kav dej kub kub. Qhov loj me ntawm cov specifications muaj qhov cuam tshuam tseem ceeb, thiab tsis muaj ntau thiab tsawg tus qauv feem ntau yuav tsum tau 20-30% nce rau hauv tus nqi. Cov nqi tsheb thauj mus los thiab cov chaw nyob thiab thov yuav ua rau qhov sib txawv hauv cheeb tsam.
Dab tsi yog qhov qauv ntawm Q215 steel yeeb nkab ua lag luam tus nqi hauv 2023?
Tsav los ntawm cov txhab nyiaj hauv thawj ib nrab ntawm 2023, tus nqi ntawm Q215 steel kav tswj kev txhim kho kom ruaj khov. Hauv lub quarter thib peb, vim kev hloov kho hauv kev lag luam av, xav tsis muaj zog, ua rau muaj kev poob qis me ntsis hauv tus nqi. Stricter ib puag ncig kev tiv thaiv cov cai tau coj mus rau cov kev txwv ntau yam hauv qee cov teeb meem me me, txhawb tus nqi kev ruaj khov. Featruence hauv ntiaj teb cov nqi indirectionly cuam tshuam rau cov nqi hauv khw hauv ntshuam thiab xa cov xees. Nws cia siab tias tus nqi yuav rov qab rov qab me ntsis thaum kawg ntawm lub xyoo thaum lub caij ntuj no cia khoom yuav nce.
Tus nqi-kev ua tau zoo piv ntawm kev sib txawv ntawm kev sib txawv thiab hauv tebchaws Q215 steel hlau sib piv?
Domestic Q215 steel kav tau muaj qhov zoo heev hauv tus nqi, uas feem ntau 20-35% qis dua cov khoom lag luam. Hais txog qhov zoo, cov khoom lag luam ntawm cov hlau loj loj tau mus txog qib kev nce qib hauv ntiaj teb. Hais txog kev xa khoom voj voog, cov khoom lag luam hauv tsev yog qhov hloov tau yooj yim dua thiab tuaj yeem teb sai rau kev lag luam thov. Txog cov ntaub ntawv tshwj xeeb lossis cov chaw thov siab kawg, cov khoom lag luam txawv teb yuav ua tau zoo dua nyob rau hauv qee yam ntsuas kev ua tau zoo. Xav txog tus nqi-kev ua tau zoo piv, domestic Q215 steel kav yog ib qho kev xaiv ntau dua rau kev siv feem ntau.
Yuav ua li cas coj kev zoo siab thaum yuav Q215 steel kav?
First, check the quality certification documents, including material reports, test reports, etc. Perform appearance inspection, including indicators such as surface quality, dimensional tolerance, and straightness. Kev txheeb xyuas cov tshuaj ntsuam xyuas tshuaj lom neeg los xyuas seb nws puas tau raws li cov qauv. Yog tias tsim nyog, cov cuab yeej cuab cov khoom ntiag tug, suav nrog kev xeem tensile, thiab lwm yam. Rau cov khoom siv tseem ceeb (xws li ultrasonic kuaj) yuav tsum tau nqa tawm.
Yuav ntsuas qhov kev ntseeg siab ntawm Q215 steel yeeb nkab cov khoom siv?
Tshawb xyuas tus xa khoom cov peev txheej ntau lawm thiab kev tswj hwm kev tswj hwm zoo. Nkag siab qhov ntsuas ntawm cov lag luam thiab theem ntawm cov khoom siv khoom siv. Cov hlau loj MILL feem ntau yog feem ntau txhim khu kev qha. Kuaj cov ntaub ntawv muab cov keeb kwm thiab tshuaj xyuas cov neeg siv khoom kom nkag siab cov peev txheej tiag tiag. Kev coj ua ntawm-chaw soj ntsuam kev tshuaj ntsuam cov txheej txheem ntau lawm thiab kev tswj hwm zoo tau taw tes. Piv qhov kev pabcuam tom qab muag thiab kev pabcuam kev muag khoom thiab cov qib kev txhawb nqa ntawm ntau tus neeg xa khoom.
