Cov Attm ATTM AN333 tau ua li cas rau cov yeeb nkab tensile ntawm cov yeeb nkab g.10 steel?
Lub ASTM A333 tus qauv muaj qhov tseeb thiab nruj yuav tsum tau rau lub tensile cov khoom ntawm gr.10 steel yeeb nkab. Nws yuav tsum muaj lub zog tsawg tshaj plaws ntawm 415 megapascals (MPA), sib npaug rau 60 kilopound rau ib square nti (KSI). Qhov tsawg kawg nkaus los lub zog (ntsuas siv cov txheej txheem 0.2%) yog 240 MPA (35 KSI). Tus qauv kuj tseem qhia meej txog kev xav tau elongation kom ua kom muaj peev xwm ua kom muaj peev xwm txaus. Cov khoom siv tensile ua kom pom tseeb tias cov yeeb nkab steel tau muaj zog txaus thaum muaj kev ruaj ntseg los tiv thaiv kev nyab xeeb lossis kev sib tw hauv qab ntawm kev thauj khoom ntau.
VIM LI CAS VIM V - Ceebtis yuav tsum tau xeem rau A333 cov yeeb nkab steel?
Lub charpy v - cov neeg cuam tshuam tsis tau rau A333 Gr.13 uas yog qhov ntsuas tau ncaj qha rau cov khoom siv tsawg- kub nruj. Tensile kuaj feem ntau ntsuas lub zog thiab kev sib luag tab sis tsis tuaj yeem qhia tawm cov khoom tawg tsis kam tiv taus qis {} - kev cuam tshuam nrog kev cuam tshuam (xws li cuam tshuam). V - tsis paub sim sim ua kom muaj peev xwm ua tsis xws luag, thiab kev cuam tshuam ntawm cov khoom muaj peev xwm nqus tau lub zog thiab tawm tsam brittle bacture. Rau gr.10 steel yeeb kev ua haujlwm ntawm -100 degree, qhov kev xeem no ua "dhau" txhawm rau txheeb xyuas nws txoj kev nyab xeeb hauv kev pabcuam thiab yog cov tseem ceeb ntawm kev tswj hwm.
Qhov kev lees paub txog A333 gr.10 cuam tshuam dab tsi? Qhov ntsuas kub yog dab tsi?
The Charpy V-notch impact test for A333 Gr.10 steel pipe must be conducted at -100℃(-150℃F). Cov txheej txheem lees txais tau teev tseg hauv cov qauv nruj heev: qhov nruab nrab cuam tshuam lub zog ntawm ib pawg ntawm peb lub zog (Julkes-tawv (FiltAf). Tsis tas li ntawd, tsis muaj tus nqi twg rau ib qho ntawm peb cov quav yuav tsum tsawg dua 14 J (10 FILT aXF). Qhov no "dual tswj" yuav tsum muaj (yuav tsum tau ob qho tib si tus nqi tsawg kawg nkaus) kom ntseeg tau tias muaj txiaj ntsig zoo dua qub) kom ntseeg tau tias muaj txiaj ntsig zoo thiab tsis muaj zog.
Dab tsi yuav tsum tau ua yog hais tias ib pob ntawm A333 gri0 steel steel tsis ua qhov kev cuam tshuam?
Thaum ib qho kev sib tsoo ntawm cov yeeb nkab steel tsis ua rau kuaj, cov AVTM A333 tso cai rau cov txheej txheem ua kom nruj heev. Ua ntej, txheej tshiab ntawm peb cov hnoos qeev los ntawm tib pawg yuav rov ua tau. Ob qho tib si nruab nrab thiab ib tus neeg muaj nuj nqis ntawm cov hnoos qeev no yuav tsum ua kom tau raws li cov kev xav tau rau cov pob tau suav tias yog lees txais. Yog tias qhov rov qab tseem ua tsis tiav, cov chaw tsim khoom yuav xaiv rov kho cov pob txha pob (feem ntau yog los ntawm renormalizing), tab sis muaj pes tsawg tus ntawm kev kho kho rov qab yuav tsum tsis pub tshaj ob. Tom qab kho cov raj, cov yeeb nkab yuav tsum tau rov ua kom tiav rau txhua tus neeg kho tshuab uas xav tau (suav nrog cov tensile thiab kev ntsuas cuam tshuam). Kev txais yuav tsuas yog muab tso cai yog tias tag nrho cov txiaj ntsig tau raws cov qauv.
Dhau li ntawm cov tensile thiab kev ntsuas cuam tshuam, yuav tsum muaj lwm cov kev ntsuam xyuas twg rau A333 gri0 steel yeeb nkab?
Ntxiv rau cov kev xeem tensile thiab cuam tshuam, A333 gri0 steel yuav tsum tseem yauv mus ua haujlwm hnyav thiab hydrostatic. Kev ntsuas kev nyuaj ua kom pom tseeb ntawm cov khoom sib xyaw ntawm cov khoom siv lub zog thiab tawv, thiab ua kom yooj yim ntawm cov ntaub pua chaw (piv txwv li, vuam thiab khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov thiab dabtsi yog khoov Hydrostatic Kuaj xyuas qhov tseeb ntawm tag nrho cov kev ncaj ncees thiab siab - cov kabmob muaj peev xwm ntawm cov kav hlau steel. Qhov ntsuas ntsuas tau suav raws tus qauv qauv raws li cov yeeb nkab loj thiab cov phab ntsa tuab, thiab yuav tsum yog tswj hwm rau lub sijhawm tsis muaj xau. Tsis tas li ntawd, rau cov kav dej welded (txawm hais tias tsawg dua), transverse tensile thiab khoov kev kuaj thiab khoov tau ntawm Weld Seam. Txhua qhov kev xeem yuav tsum pom los ntawm kev tso cai tshuaj xyuas lub cev thiab daim ntawv qhia txog kev cai (MTC / CMTTC / CMTTC / CMTR) yuav tsum tau tshaj tawm.
