Toughness Aspect

 

Qhov kub dov ntau dua ua rau cov nplej ntxhib thiab txo tus lej ntawm cov qoob loo. Nyob rau hauv qhov kev txiav txim ntawm kev cuam tshuam load, cov kab nrib pleb yuav nthuav tawm ntawm cov ciam teb tsawg dua, thiab cov khoom muaj peev xwm nqus tau qhov cuam tshuam lub zog yuav tsis muaj zog, thiab cov tawv nqaij poob qis. Piv txwv li, nyob rau hauv qhov ntsuas kub ntawm qhov ntsuas kub tsawg, GL - A690 steel tom qab siab kub dov (1100 - 1200 degree) tuaj yeem pom cov pob txha tawg.

 

Cov qauv nplua-grained tsim los ntawm qhov kub qis dua tuaj yeem tiv thaiv kev tawg tawg. Vim hais tias nplua - grained steel muaj ntau thaj tsam, thaum tawg ntsib ib thaj tsam ntawm cov nplej, nws yuav hloov nws txoj kev nthuav tawm los yog nres propagating, ua kom cov khoom nqus tau ntau lub zog thaum lub sij hawm tawg thiab txhim kho lub toughness. Feem ntau hais lus, thaum lub dov kub yog txo los ntawm qhov kub siab dua mus rau qhov tsim nyog qis qis, qhov cuam tshuam toughness ntawm GL - A690 steel tuaj yeem nce los ntawm 30 - 50%.

 

 

 

 

 

 

 

Qib	Rm (MPa)	Re (MPa) min	A% min	Akv/J min
GL-A690 steel phaj	400-520	235	22	ET degree	Thickness (hli)
				20	Tsawg dua los yog sib npaug li 50		>50-70		>70-100
					L	C	L	C	L	C
					-	-	34	24	41	27

 

 

 

Fatigue Performance Aspect

 

Cov ntxhib - grained qauv tshwm sim los ntawm high - kub dov ua rau nws nyuaj rau disperse lub siab concentration thaum lub sij hawm cyclic loading. Cov kab nrib pleb qaug zog tuaj yeem tshwm sim ntawm thaj tsam ntawm cov qoob loo ntawm cov nplej ntxhib lossis cov kab mob sab hauv, thiab thaum lawv tshwm sim, cov kab nrib pleb muaj feem ntau yuav nthuav tawm. Qhov no ua rau kev qaug zog ntawm GL - A690 steel kom txo qis thiab qaug zog lub neej kom luv thaum nws raug hloov pauv.

 

Cov qauv nplua - grained (tau los ntawm dov ntawm qhov kub qis) tuaj yeem cuam tshuam kev ntxhov siab concentration. Tom qab ib tug qaug zog tawg yog generated, lub grain ciam teb yuav impede lub ntxiv propagation ntawm tawg. Yog li ntawd, qhov tsim nyog txo qhov kub ntawm qhov dov tuaj yeem ua rau muaj kev qaug zog ntawm GL - A690 steel li ntawm 15 - 25%, txhim kho nws txoj kev pab cuam lub neej thiab kev ntseeg siab nyob rau hauv cyclic loading tej yam kev mob.

 

 

 

Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb GL-A690 Steel Phaj, thiab tsim cov kev qhia tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom txhim khu kev qha thiab cov khoom zoo thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.

Cim npe nrov: gl-a690 steel phaj, Tuam Tshoj gl-a690 steel phaj lwm tus neeg, hoobkas