Daim ntawv ceeb toom lub cev muaj zog ntawm 9 hom hnav-tiv taus daim hlau
① Thermal expansion coefficient ntawm hnav-resistant phaj: Qhov kev hloov ntawm cov khoom ntsuas qhov tshwm sim los ntawm kev hloov kub. Lub coefficient ntawm expansion yog txoj kab nqes ntawm dilatation-kub nkhaus, lub instantaneous coefficient ntawm expansion yog txoj kab nqes ntawm ib tug tshwj xeeb kub, thiab qhov nruab nrab txoj kab nqes ntawm ob qhov ntsuas kub yog qhov nruab nrab coefficient ntawm thermal expansion. Lub coefficient ntawm expansion yuav qhia tau nyob rau hauv cov nqe lus ntawm ntim los yog ntev, feem ntau nyob rau hauv cov nqe lus ntawm ntev.
② hnav-resistant phaj ceev: Qhov ceev ntawm cov khoom yog qhov loj ntawm ib chav tsev ntim ntawm cov khoom, chav tsev yog kg / m3 los yog 1b / in3.
(3) Elastic modulus: Thaum lub zog siv rau ob qhov kawg ntawm chav tsev ntev tuaj yeem ua rau lub tsev hloov pauv ntawm qhov ntev, lub zog xav tau ntawm chav tsev yog hu ua elastic modulus. Chav tsev yog 1b/in3 lossis N/m3.
④ Hnav phaj resistivity: Qhov kev tiv thaiv ntsuas ntawm ob sab ntawm cov khoom siv cubic ib chav tsev ntev, qhia hauv Ω / m, μΩ / cm lossis (siv) Ω / (circularmil.ft).
⑤ Hnav phaj permeability: tsis muaj qhov sib nqus coefficient, qhia txog qib ntawm cov khoom siv tau yooj yim magnetized, yog qhov piv ntawm magnetic induction zog thiab magnetic teb zog.
⑥ Melting kub ntau: txiav txim siab qhov kub ntawm qhov hnav-resistant phaj alloy pib solidify thiab xaus.
⑦ Cov cua kub tshwj xeeb ntawm cov phaj hnav-tiv taus: lub tshav kub yuav tsum tau hloov qhov kub ntawm cov khoom hauv ib chav tsev los ntawm 1 degree. Cov cua sov tshwj xeeb yog tib yam nyob rau hauv ob qho tib si imperial thiab CGs systems, vim hais tias chav tsev ntawm tshav kub (Biu los yog cal) nyob ntawm seb cov cua sov yuav tsum tau nce ib degree ib chav tsev loj ntawm cov dej. Tus nqi ntawm cov cua sov tshwj xeeb hauv SI system txawv ntawm qhov hauv imperial lossis CGS systems vim hais tias chav tsev ntawm lub zog (J) tau txhais txawv. Cov ntsuas kub tshwj xeeb yog Btu(1b/0F) thiab J/(kg/k).
⑧ hnav-resistant phaj thermal conductivity: ib qho kev ntsuas ntawm tus nqi ntawm cov khoom kub conduction. Thaum qhov ntsuas kub ntawm 1 degree rau ib chav tsev ntev yog tsim los ntawm cov khoom siv hauv ib cheeb tsam hauv cheeb tsam, tom qab ntawd cov thermal conductivity yog txhais raws li cov cua sov xa mus rau ib lub sijhawm, thiab cov thermal conductivity tau qhia hauv Btu / (h / ft / 0F) los yog w/(m/K).
Thermal diffusivity ntawm hnav phaj: Nws yog ib qho kev ua tau zoo los txiav txim siab tus nqi pem hauv ntej ntawm qhov kub thiab txias ntawm cov khoom, thiab nws yog qhov sib piv ntawm cov khoom ntawm thermal conductivity thiab ntom, thiab lub thermal diffusivity unit yog qhia hauv Btu / (h / ft/0F) los yog w/(m/k).
