Lub hardness hloov ntawm CCS E420 steel phaj tom qab sib txawv cua sov - kev kho mob yog raws li nram no:

Annealing

 

Lub hardness feem ntau txo qis tom qab annealing. Thaum lub sij hawm tag nrho cov txheej txheem annealing, cov hlau yog rhuab saum toj no qhov tseem ceeb kub, tuav rau ib lub sij hawm, thiab ces maj mam txias. Qhov no ua rau cov qauv sab hauv zoo ib yam thiab ruaj khov, txo cov kev ntxhov siab sab hauv, thiab vim li ntawd, qhov hardness txo. Lub microstructure hloov mus rau hauv cov qauv ruaj khov dua nrog qis hardness.

Quenching thiab Tempering

 

 

Tom qab tempering: Qhov kev hloov ntawm hardness nyob ntawm tempering kub. Thaum lub tempering kub qis dua 200 degree, lub hardness tseem tseem tsis hloov pauv lossis nce me ntsis. Qhov no yog vim hais tias cov pa roj carbon atoms aggregate tab sis tsis precipitate ntawm qhov kub thiab txias, thiab cov khoom - tov ntxiv zog yog tswj. Thaum lub tempering kub nyob ib ncig ntawm 300 degree, lub hardness txo qis. Ntawm qhov tod tes, cov nag lossis daus ntxiv ntawm carbon txo cov hardness. Ntawm qhov tod tes, ntau khaws cia austenite nyob rau hauv siab - carbon steel yog hloov mus rau hauv martensite, uas ua rau hardening. Qhov sib xyaw ua ke ntawm ob yam no ua rau lub hardness txo qis qis lossis txawm tias yuav nce me ntsis. Thaum lub tempering kub siab tshaj 300 degree, raws li lub tempering kub nce, lub hardness kuj txo. Qhov no yog vim qhov ploj ntawm cov khoom - kev daws teeb meem ntxiv zog, kev loj hlob ntawm carbide aggregation, thiab rov qab thiab recrystallization ntawm - theem.

 

 

 

 

 

Qib	Thickness	Yield zog	Tensile zog	Elongation	Impact Zog
	(mm)	MPa (min)	MPa	% (min)	(KV J) (min)
					-40 degree
CCS E420	8-260	420	530-680	18	28J

 

normalizing

 

Lub hardness yuav nce tom qab normalizing. Normalizing yog kom sov cov hlau saum toj no qhov tseem ceeb kub thiab ces txias nws nyob rau hauv cov huab cua. Cov cua txias yog nrawm dua li ntawm qhov kev sib tsoo, thiab qhov tau txais microstructure zoo dua li tom qab annealing, thiab lub zog thiab hardness kuj siab dua.

 

 

 

 

 

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 CCS E420 Steel Phaj, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sijhawm thiab ntawm kev siv nyiaj.
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.
Relying ntawm superior tej yam kev mob thiab muaj zog zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg muas zaub.

Cim npe nrov: ccs e420 steel phaj, Tuam Tshoj ccs e420 steel phaj lwm tus neeg, hoobkas