China Kover Expansion Alloy 4J29 Wire 0.008mm bakeng sa Moetsi oa Indasteri ea Vacuum le Feme

Kover Expansion Alloy 4J29 Wire 0.008mm bakeng sa Indasteri ea Motlakase ea Vacuum Setšoantšo se Hlahisitsoeng

Kover Expansion Alloy 4J29 Wire 0.008mm bakeng sa Indasteri ea Motlakase oa Vacuum

Tlhaloso e Khutšoanyane:

Qaqiso ea Sehlahisoa

LBH

Li-tag tsa Sehlahisoa

Atolosa motsoako Kovar terata motsoako-4J29

(Lebitso le Tloaelehileng: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
Alloy-4J29 e tsejoang hape e le alloy ea Kovar. e qapiloe ho fihlela tlhoko ea tiiso e tšepahalang ea khalase ho isa ho tšepe, e hlokahalang lisebelisoa tsa elektroniki tse kang mabone a mabone, li-tube tsa vacuum, li-tube tsa cathode ray, le lits'ebetsong tsa vacuum k'hemistri le lipatlisiso tse ling tsa mahlale. Litšepe tse ngata li ke ke tsa koala khalase hobane coefficient ea tsona ea thermal expAN SIon ha e tšoane le khalase, kahoo ha lenonyello le pholile ka mor'a tlhahiso, khatello ea maikutlo e bakoang ke phapang ea expAN SIon sekhahla sa khalase le tšepe se etsa hore lenonyello le petsohe.
(-Kovar)
Kovar ke motsoako oa tšepe oa nickel-cobalt o tšoanang hantle le Fernico, o etselitsoeng ho lumellana le litšobotsi tsa thermal exAN SIon tsa khalase ea borosilicate (~5 × 10?6 /K pakeng tsa 30 le 200 °C, ho isa ho ~10 × 10?6 /K ho 800 °C) e le ho lumella likhokahano tse tobileng tsa mechini holim'a mefuta e fapaneng ea mocheso. E sebelisoa ho li-conductor tse nang le electroplated tse kenang ka har'a lienfelopo tsa khalase tsa likarolo tsa elektroniki tse kang li-vacuum tube (li-valve), li-X-ray le li-microwave tube le mabone a mang.
Lebitso Kovar hangata le sebediswa e le lentswe le akaretsang bakeng sa di-alloy tsa Fe-Ni tse nang le thepa ena e ikgethang ya expAN SIon ya mocheso. Hlokomela Invar ya alloy ya Fe-Ni e amanang le yona e bontshang expAN SIon ya mocheso o fokolang.

Alloy-4J29 e qapiloe ho fihlela tlhoko ea tiiso e tšepahalang ea khalase ho ea ho tšepe, e hlokahalang lisebelisoa tsa elektroniki tse kang mabone a mabone, li-vacuum tube, li-cathode ray tube, le lits'ebetsong tsa vacuum k'hemistri le lipatlisiso tse ling tsa mahlale. Litšepe tse ngata li ke ke tsa koala khalase hobane coefficient ea tsona ea thermal expAN SIon ha e tšoane le khalase, kahoo ha lenonyello le pholile ka mor'a tlhahiso, khatello ea maikutlo e bakoang ke phapang ea expAN SIon sekhahla sa khalase le tšepe se etsa hore lenonyello le petsohe.

Alloy-4J29 ha e na feela thermal expAN SIon e tšoanang le khalase, empa leqhetsoana la eona la thermal expAN SIon le sa laoleheng hangata le ka etsoa hore le lumellane le khalase, ka hona le lumella lenonyeletso ho mamella mocheso o pharaletseng. Ka lik'hemik'hale, le hokahana le khalase ka lera la oxide le mahareng la nickel oxide le cobalt oxide; karolo ea oxide ea tšepe e tlase ka lebaka la phokotso ea eona ka cobalt. Matla a lenonyeletso a itšetlehile haholo ka botenya le sebōpeho sa lera la oxide. Boteng ba cobalt bo etsa hore lera la oxide le qhibilihe habonolo ka khalaseng e qhibilihisitsoeng. 'Mala o moputsoa, o moputsoa-putsoa kapa o moputsoa-sootho o bontša tiiso e ntle. 'Mala oa tšepe o bontša ho hloka oxide, ha 'mala o motšo o bontša tšepe e nang le oxidized e ngata, maemong ka bobeli e lebisang ho lenonyeletso le fokolang.

E sebelisoa haholo-holo likarolong tsa motlakase tsa vacuum le taolong ea mosi, tube ea ho tšoha, tube ea ho hotetsa, magnetron ea khalase, trAN SIstors, plug ea seal, relay, lead ea lipotoloho tse kopaneng, chassis, libracket le ho tiisa matlo a mang.

Sebopeho se tloaelehileng%

Ni	28.5~29.5	Fe	Bala.	Co	16.8~17.8	Si	≤0.3
Mo	≤0.2	Cu	≤0.2	Cr	≤0.2	Mn	≤0.5
C	≤0.03	P	≤0.02	S	≤0.02

Matla a ho Tenyetseha, MPa

Khoutu ea maemo	Boemo	Terata	Sekoahelo
R	Bonolo	≤585	≤570
1/4I	1/4 e thata	585~725	520~630
1/2I	1/2 e thata	655~795	590~700
3/4I	3/4 e thata	725~860	600~770
I	Ka thata	≥850	≥700

Litšobotsi tse tloaelehileng tsa 'mele

Botenya (g/cm3)	8.2
Ho hanyetsa motlakase ho 20ºC(mm2/m)	0.48
Thempereichara ea ho hanyetsa (20ºC~100ºC)X10-5/ºC	3.7~3.9
Ntlha ea Curie Tc/ºC	430
Modulus e tenyetsehang, E/ Gpa	138

Koefficient ea expAN SIon

θ/ºC	α1/10-6ºC-1	θ/ºC	α1/10-6ºC-1
20~60	7.8	20~500	6.2
20~100	6.4	20~550	7.1
20~200	5.9	20~600	7.8
20~300	5.3	20~700	9.2
20~400	5.1	20~800	10.2
20~450	5.3	20~900	11.4

Ho khanna ha mocheso

θ/ºC	100	200	300	400	500
λ/ W/(m*ºC)	20.6	21.5	22.7	23.7	25.4

Mokhoa oa kalafo ea mocheso
Ho koaheloa ha letlalo bakeng sa phomolo ea khatello ea maikutlo	E futhumale ho fihlela ho 470~540ºC 'me e tšoare hora e le 1~2. E bata
ho annealing	Ka vacuum e futhumetse ho fihlela ho 750 ~ 900ºC
Nako ea ho tšoara	Metsotso e 14 ~ hora e le 'ngoe.
Sekhahla sa ho pholisa	Ha ho feta 10 ºC/min e phodisitsweng ho fihlela ho 200 ºC

Mokhoa oa phepelo

Lebitso la Li-alloy	Mofuta	Tekanyo
Motsoako-4J29	Terata	D= 0.1~8mm
Motsoako-4J29	Sekoahelo	W= 5~250mm	T= 0.1mm
Motsoako-4J29	Foile	W= 10~100mm	T= 0.01~0.1
Motsoako-4J29	Bare	Bophara= 8~100mm	L= 50~1000