Sib piv cov kev hloov pauv hauv Hardness Values

 

Kev sib piv ncaj qha ntawm qhov nruab nrab hardness ua ntej thiab tom qab kho: Ua ntau yam kev ntsuam xyuas nano-indentation ntawm CCS D690 steel qauv uas tau dhau los ntawm kev vibration-relief kev kho mob thiab cov uas tsis tau kho raws li tau txais cov ntaub ntawv hardness. Xam qhov nruab nrab hardness ua ntej thiab tom qab kev kho mob. Yog tias qhov nruab nrab hardness tom qab kev kho mob siab dua li ua ntej kev kho mob, nws qhia tau hais tias qhov kev vibration-relief kev kho mob tau ua kom muaj zog ntxiv. Piv txwv li, yog tias qhov nruab nrab hardness ntawm qhov tsis kho CCS D690 steel yog, thiab qhov nruab nrab hardness tom qab kev co kev ntxhov siab-relief kho yog, thaum twg, nws txhais tau hais tias cov khoom tau ntxiv dag zog rau.

 

Xav txog qhov Dispersion ntawm Hardness Data: Dhau li ntawm tus nqi nruab nrab, kev saib xyuas yuav tsum tau them rau qhov dispersion ntawm hardness cov ntaub ntawv, uas feem ntau yog ntsuas los ntawm tus qauv sib txawv. Yog hais tias tus qauv sib txawv ntawm cov ntaub ntawv hardness me me tom qab kev co kev ntxhov siab-relief kev kho mob, nws qhia tau hais tias kev kho mob ua rau lub hardness ntawm cov ntaub ntawv ntau uniformity, uas kuj yog ib qho kev qhia ntawm lub dag zog. Vim hais tias ib tug tsis sib xws hardness txhais tau hais tias thaum cov khoom raug rau sab nraud quab yuam, lub deformation kuj ntawm txhua cheeb tsam yog zoo sib xws thiab tag nrho cov kev ua tau zoo yog ruaj khov.

 

Txheeb xyuas cov yam ntxwv ntawm Hardness-Depth Curves

 

Saib xyuas Txoj Cai Variation ntawm Hardness nrog Indentation Depth: Lub hardness-depth curves tau los ntawm kev ntsuam xyuas nano-indentation tuaj yeem cuam tshuam cov khoom siv ntawm cov khoom nto thiab subsurface. Rau CCS D690 steel, soj ntsuam qhov kev hloov ntawm hardness nrog indentation qhov tob ua ntej thiab tom qab kev vibration-relief kho. Yog tias tom qab kev kho mob, tus nqi hardness tseem nyob rau theem siab nyob rau hauv ib qho kev sib sib zog nqus los yog tus nqi ntawm hardness txo qis, nws txhais tau hais tias kev co kev ntxhov siab-relief kev kho mob tau ua rau tsim cov qauv hauv cov khoom uas muaj txiaj ntsig zoo. tiv thaiv deformation, xws li dislocation ntxiv dag zog rau thiab nag lossis daus, yog li txhim kho cov nyhuv ntawm cov khoom siv ntxiv.

 

 

 

 

 

 

 

Element	CCS D690 Max %	Element	CCS D690 Max %
C	0.20	Ni	0.40
Mn	1.70	Mo	0.08
Si	0.10-0.55	Al	0.020 min
S	0.030	Nb	0.20-0.05
P	0.030	V	0.05-0.10
Cu	0.35	Ti	0.0007-0.05
Cr	0.20	N

Crack Sensitivity: Pcm=(C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/{ {7}}V/10+5B)%

 

 

Tsim kom muaj kev sib raug zoo ntawm Hardness thiab Lwm yam Mechanical Properties

 

Kev sib raug zoo nrog Yield Strength: Raws li txoj kev xav ntawm cov khoom siv tshuab, muaj qee qhov kev sib raug zoo ntawm hardness thiab yield zog. Rau CCS D690 steel, paub cov qauv qauv (xws li , qhov twg yog qhov nyuaj, yog lub zog tawm los, thiab yog qhov muaj feem xyuam nrog cov khoom siv) tuaj yeem siv. Kev hloov pauv ntawm lub zog tawm los tuaj yeem suav tau los ntawm kev hloov pauv hauv hardness ntsuas los ntawm nano-indentation. Yog hais tias lub hardness nce, nws yog inferred hais tias lub yield zog kuj nce, qhia tau hais tias cov khoom yog nyuaj rau undergo yas deformation thiab lub dag zog nyhuv yog pom tseeb.

 

Kev sib raug zoo nrog Elastic Modulus: Hardness kuj muaj feem xyuam rau cov elastic modulus rau qee yam. Lub elastic modulus qhia txog cov khoom muaj peev xwm los tiv thaiv elastic deformation. Los ntawm cov txheej txheem nano-indentation, tau txais cov ntaub ntawv hardness thiab elastic modulus ib txhij thiab txheeb xyuas kev sib raug zoo ntawm ob qho tom qab kev co kev ntxhov siab-kev kho mob. Yog hais tias ob qho tib si hardness thiab elastic modulus nce, nws qhia tau hais tias cov khoom ntawm deformation kuj tau raug txhim kho nyob rau hauv ob qho tib si elastic thiab yas theem, ntxiv dag zog rau cov nyhuv ntawm kev co kev ntxhov siab-relief kho.

 

 

 

 

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 D690 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: ccs d690 steel phaj, Tuam Tshoj ccs d690 steel phaj lwm tus neeg, hoobkas