Vibratory Stress Relief (VSR)

 

Txoj Cai: Vibratory stress relief siv cov cuab yeej vibration los ua resonance hauv welded LR/FH40 steel Cheebtsam. Thaum lub sij hawm resonance txheej txheem, cov residual kev nyuaj siab nyob rau hauv lub Cheebtsam yuav redistributed thiab so kom txaus rau ib yam dab tsi. Txoj kev no siv lub hauv paus ntsiab lus ntawm microscopic plam thiab dislocation txav ntawm cov hlau nyob rau hauv alternating stress. Thaum cov kev ntxhov siab dynamic tsim los ntawm kev vibration yog superimposed ntawm qhov seem kev ntxhov siab hauv cov khoom, nws yuav dhau qhov kev txwv ntawm cov khoom siv hauv cheeb tsam, yog li txo qhov kev ntxhov siab siab thiab ua tiav lub hom phiaj ntawm kev tshem tawm cov kev ntxhov siab welding.

 

Kev Ua Haujlwm: Muab cov welded steel tivthaiv rau ntawm lub rooj ua haujlwm ntawm kev vibratory kev nyuaj siab - cov khoom siv pab. Xaiv qhov tsim nyog exciters thiab vibration zaus raws li qhov loj me, cov duab, thiab qhov hnyav ntawm cov khoom. Feem ntau, qhov vibration zaus feem ntau yog nyob nruab nrab ntawm kaum ob ntawm hertz thiab ntau pua hertz. Tom qab ntawd, kho qhov kev vibration tsis ua kom cov khoom siv resonate thiab vibrate rau lub sijhawm, feem ntau yog 20 - 60 feeb. Lub sijhawm tshwj xeeb yog nyob ntawm qhov nyuaj ntawm cov khoom thiab qhov kev ntxhov siab thawj zaug.

 

Qhov zoo: Muab piv nrog cov tsoos thermal kev nyuaj siab - kev kho mob, kev vibratory kev ntxhov siab - kev kho mob nyem muaj qhov zoo ntawm lub zog - txuag, ib puag ncig - phooj ywg, thiab kev ua haujlwm siab. Nws tsis xav tau cov khoom siv cua sov loj, thiab tsis muaj qhov tsis xws luag xws li oxide nplai yuav raug tsim thaum lub sijhawm kho. Ntxiv mus, nws tuaj yeem nqa tawm ntawm - qhov chaw hauv lub rooj cob qhia, tsis muaj kev txwv los ntawm qhov chaw, thiab tuaj yeem tshem tawm qhov kev ntxhov siab ntawm cov khoom siv welded sai sai.

 

Tua Peening

 

Txoj Cai: Kev txhaj tshuaj peening siv cov pellets siab ceev (xws li steel pellets, iav pellets, thiab lwm yam) los cuam tshuam rau saum npoo ntawm welded LR AH42 steel. Qhov cuam tshuam ntawm cov pellets yuav ua rau cov yas me me deformation ntawm cov hlau nto, thiab qhov deformation no yuav txuas mus rau qhov tob hauv cov khoom. Thaum lub sij hawm tus txheej txheem no, cov residual kev nyuaj siab nyob rau hauv lub vuam cheeb tsam yuav tau so thiab redistributed vim lub zos yas deformation, yog li ua tiav cov nyhuv ntawm kev txo cov kev ntxhov siab concentration.

 

Kev Ua Haujlwm: Muab cov welded steel tivthaiv rau hauv thaj chaw ua haujlwm ntawm kev txhaj tshuaj - peening khoom thiab xaiv cov ntaub ntawv pellet tsim nyog thiab qhov ntau thiab tsawg. Piv txwv li, rau LR/FH40 steel, feem ntau siv steel pellet particle loj yog nyob nruab nrab ntawm 0.3 - 1.5 hli. Kho qhov kev txhaj tshuaj siab thiab lub kaum sab xis ntawm kev txhaj tshuaj - cov cuab yeej peening kom cov pellets cuam tshuam cov hlau nto ntawm qhov tsim nyog ceev thiab lub kaum sab xis. Kev txhaj tshuaj siab feem ntau yog nyob nruab nrab ntawm 0.2 - 0.6 MPa, thiab lub kaum sab xis txhaj tshuaj yog nyob ntawm cov duab ntawm cov khoom thiab qhov uas yuav tsum tau kho. Lub sij hawm thiab kev siv ntawm kev txhaj tshuaj peening tuaj yeem hloov kho raws li qhov loj ntawm vuam kev nyuaj siab thiab cov kev xav tau ntawm cov khoom siv. Feem ntau, kev txhaj tshuaj peening kav ntev li 5 - 15 feeb, thiab tom qab ntawd cov khoom raug tshuaj xyuas thiab tshuaj xyuas.

 

Qhov zoo: Kev txhaj tshuaj peening tuaj yeem tsis tsuas yog tshem tawm kev ntxhov siab ntawm vuam tab sis kuj tsim cov txheej txheem kev ntxhov siab ntawm cov hlau, txhim kho kev ua haujlwm ntawm kev qaug zog thiab qhov tawv tawv ntawm cov khoom. Nyob rau tib lub sijhawm, txoj kev no yooj yim rau kev khiav lag luam, thiab cov cuab yeej siv tus nqi qis, thiab nws tsim nyog rau welded Cheebtsam ntawm ntau yam duab thiab ntau thiab tsawg.

 

 

 

 

 

 

LR/FH40 siab zog tshuaj muaj pes tsawg leeg
Qib	Cov ntsiab lus Max (%)
	C	Si	Mn	P	S	Al	N
LR/FH40	0.16	0.05	0.9-1.6	0.025	0.025	0.015
	Nb	V	Ti	Cu	Cr	Ni	Mo
	0.02-0.05	0.03-0.10	0.02	0.35	0.20	0.80	0.08

 

 

 

 

 

 

 

 

 

 

 

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 LR FH40 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.
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: LR FH40 steel phaj, Tuam Tshoj lr fh40 steel phaj lwm tus neeg, hoobkas