Kev cuam tshuam ntawm Micro - cov qauv kev hloov pauv ntawm Crack Propagation

 

 

 

Qhov cuam tshuam ntawm cov khoom vaj khoom hloov pauv ntawm Crack Propagation

 

Kev cuam tshuam ntawm nce brittleness: Kev sib cais ntawm phosphorus nce lub brittleness thiab txo cov toughness ntawm cov khoom. Cov ntaub ntawv tawv tuaj yeem siv lub zog los ntawm cov yas deformation hauv zos thaum lub sij hawm tawg tawm, yog li ua kom qeeb ntawm qhov tawg nrawm. Txawm li cas los xij, cov ntaub ntawv nkig tsis muaj lub zog-siv mechanism.

 

Yog li ntawd, thaum qaug zog tawg propagates nyob rau hauv lub tshav kub - cuam tshuam cheeb tsam tom qab phosphorus segregation, vim lub brittleness ntawm cov khoom, lub tawg yuav nthuav sai sai, ib yam li ib tug tawg ntawm qhuav thiab tsis yooj yim av (cov khoom nkig) yuav ncua sai. Nyob rau hauv sib piv, nyob rau hauv cov ntaub ntawv uas zoo toughness, propagation ntawm ib tug tawg yog zoo li ntawd nyob rau hauv mos thiab elastic roj hmab (cov ntaub ntawv tawv) thiab yuav ntsib kuj zoo kawg li.

 

Cov nyhuv ntawm Hardness Hloov: Txawm hais tias qhov nce hauv hardness tshwm sim los ntawm phosphorus segregation txhim kho cov khoom muaj peev xwm tiv thaiv deformation rau qee qhov, nws muaj qhov cuam tshuam tsis zoo rau kev tawg tawm. Thaum cov kab nrib pleb nthuav tawm hauv cov khoom uas muaj zog dua, siab - kev ntxhov siab ntau dua yuav tshwm sim ntawm qhov tawg.

 

Qhov no yog vim hais tias cov ntaub ntawv nyuaj muaj tsawg deformability thiab tsis tuaj yeem cuam tshuam qhov kev ntxhov siab ntawm qhov tawg ntawm lawv tus kheej deformation. Qhov siab-kev ntxhov siab no yuav ua kom nrawm nrawm nrawm thiab ua rau txo qis hauv kev qaug zog ntawm cov cua sov - cuam tshuam cheeb tsam. Piv txwv li, nyob rau hauv ib tug qaug zog - tawg - propagation test, lub tawg - propagation ceev ntawm phosphorus - cais cov cua sov - cuam tshuam - cheeb tsam cov ntaub ntawv uas muaj siab hardness qhia nyob rau hauv ib tug hardness xeem yuav sai npaum li cas ntawm cov khoom uas muaj tsawg hardness thiab zoo dua. tawv.

 

 

 

 

 

BV F420 Tshuaj muaj pes tsawg leeg kub tsom xam

Element	BV F420 Max %	Element	BV F420 max %
C	0.18	Ni	2.0
Mn	1.60	Mo	1.0
Si	0.10-0.55	Al	0.015 min
S	0.025	Nb	0.06
P	0.020	V	0.10
Cu	1.5	Ti	0.20
Cr	2.0	N	0.020

 

 

 

 

 

 

 

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 BV F420 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 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: bv f420 steel phaj, Tuam Tshoj bv f420 steel phaj lwm tus neeg, hoobkas