Lub cev lub zog ntawm stainless hlau yog mas qhia nyob rau hauv cov nram qab no:
Qhov sib tshooj ntawm thermal nthuav dav
Ib qho kev hloov pauv ntawm qhov ntsuas ntsuas ntawm yam khoom ntawd vim muaj qhov hloov siab kub.Cov coefficient ntawm kev nthuav dav yog qhov nqes ntawm lub nkhaus-qhov kub nkhaus, qhov kev sib kis tau tam sim no yog qhov nqes ntawm qhov kub ntawm qhov kub, thiab qhov nruab nrab qhov nruab nrab ntawm ob qhov kev ntsuas kub yog qhov nruab nrab coefficient ntawm thermal expansion.Qhov coefficient ntawm kev nthuav dav tuaj yeem hais tawm txog qhov ntim lossis raws qhov ntev, feem ntau ua raws qhov ntev.
(2) ntom
Qhov ntom ntawm ib qho khoom yog qhov loj ib qhov ntsuas ntawm ib nrab ntawm cov khoom hauv qhov hnyav hauv kg / m3 lossis 1b / in3.
Modulus ntawm elasticity
Thaum tus quab yuam siv rau ob qhov kawg ntawm ntug rau ib ntev ntev yuav ua rau lub zog hloov qhov ntev ntawm qhov khoom, lub zog xav tau ntawm ib cheeb tsam yog hu ua qauv qauv ntawm elasticity.Cov koog muaj 1b / in3 lossis N / m3.
(4) tiv taus
Hauv qhov ntev ntev ntsuas qhov ua haujlwm ntawm ob sab rov qab ntawm cov khoom siv lub voos xwmfab, chav tsev nrog Ω m, mu Ω, cm lossis Ω (pov tseg) / (ncig lub hli Ft.).
(5) sib nqus permeability
Lub dimensionless coefficient yog qhov sib piv ntawm kev sib nqus sib nqus mus rau kev siv hlau nplaum ntau.
Melting kub ntau yam
Txiav txim siab pib thiab ua tiav qhov kub ntawm qhov ntau thiab tsawg.
Txhua tus tswv av kub
Tus nqi ntawm qhov cua sov xav tau los hloov qhov kub ntawm ib yam khoom los ntawm 1 degree hauv ib pawg qhov loj.Hauv ob qho kev ua kom tsis muaj huab cua thiab CGs cov txheej txheem tshwj xeeb rau qhov muaj cua sov yog qhov zoo ib yam, vim tias chav tsev ntawm tshav kub (Biu lossis CAL) nyob ntawm cov nqi ntawm cov cua sov xav kom nce ib pawg ntawm cov dej loj los ntawm 1 degree.Tus nqi ntawm kev kub tshwj xeeb nyob rau hauv kev siv thoob ntiaj teb ntawm cov chav nyob txawv qhov uas nyob rau hauv qhov system imperial lossis CGS system, vim tias lub zog ntawm lub zog (J) tau txhais nyob rau hauv kev sib txawv.Cov koog ntawm qhov kub tshwj xeeb yog Btu (1b • 0F) thiab J / (kg • k).
Lub thermal conductivity rau hnub no
Kev ntsuas ntawm tus nqi ntawm cov khoom uas cov cua sov ua kom sov.Thaum ntsuas kub ntawm 1 degree rau ib qhov ntev qhov ntev tau tsim los ntawm cov khoom siv ntawm qhov nruab nrab ntu ntawm qhov chaw, cov thermal conductivity txhais tau tias yog cov cua sov xa mus rau ib lub sijhawm, thiab chav ntsuas ntawm thermal conductivity yog Btu / (h • ft • 0F ) lossis w / (m • K).
9 thermal diffusivity
Yog cov cuab yeej siv los txiav txim siab nrawm nrawm sab hauv ntawm sab hauv ntawm cov yeeb tshuaj. Nws yog qhov piv ntawm thermal conductivity rau cov khoom ntawm tshav kub thiab ntom. Qhov ntsuas ntawm thermal diffusivity qhia tawm hauv Btu / (h • ft • 0F) lossis w / (m • k).
1, 303 yog cov khoom siv txiav dawb, peb feem ntau cuam tshuam nrog 303 puag ncig steel thiab 45 steel.
2. Lub tshuab txheeb ze ntawm 1Cr18Ni9Ti stainless hlau yog li 0.3-05, uas yog hom nyuaj nyuaj txiav cov khoom, thiab nws lub tshuab ua tau zoo yog qhia hauv
Kev ntsuas kub ntawm lub zog thiab siab kub hardness, dav hlau txiav, nrog qhov nce ntawm txiav kub nws lub zog yuav txo qis, nti tau yooj yim raug txiav tawm, thiab 1Cr18Ni9Ti ntawm 700 degrees tseem tuaj yeem tsis tuaj yeem txo nws cov khoom kho tshuab, yog li nti tsis yooj yim yuav hlais, txiav kev sib xyaw yog loj hauv cov txheej txheem txiav, twj yooj yim hnav.
High plasticity thiab toughness, txawm hais tias 1 cr18ni9ti tensile lub zog thiab hardness tsis siab, tab sis kev ua tau zoo tshaj yog zoo heev, high plasticity thiab toughness, nws elongation, txo thaj tsam thiab cuam tshuam tus nqi yog siab dua, 1 cr18ni9ti elongation yog 40%, yog 40 # 210-237%, yog 45 # 250-280%, yog 20 cr, 400-500% ntawm 40 cr steel, yog li curled nti tsis yooj yim rau kev txiav tawm, thiab tawg, qhov ua haujlwm ntawm lub nti deformation noj ntau dua,Piv txwv li, txiav qee qhov ntim ntawm 1Cr18Ni9Ti siv sijhawm li 50% ntau zog ntawm kev txiav tib lub ntim ntawm cov pa roj carbon tsawg, thiab feem ntau ntawm lub zog hloov mus rau lub zog cua sov, ua rau kev txiav kub nce siab.
Hauv 1Cr18Ni9Ti tsis yooj yim rau cov txheej txheem, nti tsis yooj yim rau kev txiav tawm thiab tawg, yog li kev sib txhuam ntawm cov cuab yeej thiab cov haujlwm workpiece tseem muaj ntau dua, thiab stainless hlau 1Cr18Ni9Ti thermal conductivity tsawg (li 1 / 2-1 / 3 ntawm zoo tib yam hlau), tsis zoo thaum tshav kub kub dissipation, los ntawm nti nti tshav kub tawm tsawg dua.Feem ntau ntawm cov cua sov tau nqus los ntawm cov twj, uas ua rau cov cuab yeej ntsuas kub nce ntxiv thiab nce cuab yeej hnav.
Hlau http://steel.zcwz.com/ muaj sib raug zoo rau lwm yam khoom siv hlau.Yog li no, thaum muaj kev sib cuag nrog lwm cov hlau, qhov ntsuas kub thiab qhov siab yuav ua rau muaj qhov txawv txav.Hauv txoj kev txiav, cov cuab yeej yooj yim rau kev tsim cov qog pob zeb, tsis yooj yim kom tau txais cov nplaim roughness qib ntawm siab machining nto.
Lub zog tawv tawv muaj kev coj ua.Austenitic stainless hlau lub zog feem ntau yog b=539Mpa, tab sis nyob rau hauv chav tsev txias kev ua, vim kev siv lub tshuab ua kom tawv tawv thiab deformation yuav ua rau muaj kev sib hloov martensite, kom lub zog tau nce rau b=1568mpa, uas zoo heev nce qhov kev sib txhuam, hnav thiab txiav quab yuam , yooj yim los ua lub cuab yeej hnav, thiab cuam tshuam rau saum npoo roughness ntawm haujlwm.
Muaj ntau ntau cov carbide zoo (xws li TiC) cov khoom hauv 1Cr18Ni9Ti cov khoom, uas yuav ua rau hnyav ntxiv ntawm kev hnav ntawm qhov txiav.
Cov khoom siv melting taw qhia yog qhov tsawg, yooj yim lo rau riam, txiav txheej txheem yog yooj yim rau daim nplais pob zeb, vim yog qhov tawv ntawm stainless hlau, hauv cov txheej txheem txiav, muaj kev kub siab thiab siab kub ntawm qhov cuab yeej txiav ua rau saum npoo. thiab nti, nti tau yooj yim rau kev ua rau hniav, tsim ntawm cov qog nqaij hlav, cuam tshuam rau cov txheej txheem ua haujlwm zoo.
Yog li, kev siv lub tshuab ua haujlwm ntawm 1Cr18Ni9Ti yog qhov tsis zoo heev, tshwj xeeb tshaj yog kev txiav tawm tsis tu ncua, cov cuab yeej yooj yim hnav thiab kev puas tsuaj, kev pab cuam lub neej yog qhov tsawg heev, cuam tshuam rau kev ua haujlwm zoo, kev tsim nqi, kev ua haujlwm raug thiab qhov chaw zoo.