Kovar Alloy
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Cov alloy

Kovar yog nickelobalt ferrous alloy compositionally zoo tib yam rau Fernico, tsim kom sib haum nrog cov thermal expansion yam ntxwv ntawm borosilicate iav (/K ntawm 30 thiab 200 C, rau ~ 10 10 /K ntawm 800 C) thiaj li tso cai ncaj qha mechanical kev sib txuas ntawm ntau qhov kub thiab txias. Nws pom daim ntawv thov nyob rau hauv electroplated conductors nkag mus rau hauv iav hnab ntawv ntawm cov khoom siv hluav taws xob xws li lub tshuab nqus tsev (valve), X-ray thiab microwave tubes thiab qee lub teeb.
Lub npe Kovar feem ntau yog siv los ua ib lo lus dav dav rau Fei alloys nrog cov khoom tshwj xeeb thermal expansion. Nco ntsoov txog qhov tshwj xeeb Fei alloy Invar uas nthuav tawm qhov tsawg kawg nkaus thermal expansion.

Xa kev nug

Khoom Taw qhia

Style khoom
Alloys npe	Hom	Dimension
Enameled - W	Hlau	D=0.018mm ~ 3mm
Enameled-R	Ribbon	W=0.4~24	T{0}.01 ~ 0.2mm

Ib txwm muaj pes tsawg leeg
Ni	28.5~29.5	Fe	Bal.	Co	16.8~17.8	Si	Tsawg dua lossis sib npaug rau 0.3
Mo	Tsawg dua lossis sib npaug rau 0.2	Cu	Tsawg dua lossis sib npaug rau 0.2	Cr	Tsawg dua lossis sib npaug rau 0.2	Mn	Tsawg dua lossis sib npaug rau 0.5
C	Tsawg dua lossis sib npaug rau 0.03	P	Tsawg dua lossis sib npaug rau 0.02	S	Tsawg dua lossis sib npaug rau 0.02

Tensile zog, MPa
Code ntawm tus mob	Qhov xwm txheej	Hlau	Sawb
R	Mos	Tsawg dua lossis sib npaug li 585	Tsawg dua lossis sib npaug li 570
1/4I	1/4 Khob	585~725	520~630
1/2I	1/2 Nyhav	655~795	590~700
3/4I	3/4 Khob	725~860	600~770
I	Nyuaj	Ntau dua lossis sib npaug li 850	Ntau dua lossis sib npaug li 700