I-China Kover Expansion Alloy 4J29 Wire 0.008mm yoMveliso kunye noMzi-mveliso we-Electric Vacuum

I-Kover Expansion Alloy 4J29 Wire 0.008mm yoShishino lweVacuum yoMbane

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I-Alloy ye-Kovar Wire Alloy-4J29 yokwandisa

(Igama eliQhelekileyo: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
I-Alloy-4J29 ekwaziwa ngokuba yi-Kovar alloy. Yenzelwe ukuhlangabezana nesidingo sesitywini esithembekileyo seglasi ukuya kwisinyithi, esifunekayo kwizixhobo ze-elektroniki ezifana neebhalbhu zokukhanya, iityhubhu ze-vacuum, iityhubhu ze-cathode ray, nakwiinkqubo ze-vacuum kwikhemistri nakwezinye uphando lwesayensi. Uninzi lweentsimbi alunakuyitywina iglasi kuba i-coefficient yazo ye-thermal expAN SIon ayifani neglasi, ngoko ke njengoko ijoyinti iphola emva kokwenziwa, uxinzelelo olubangelwa kukwahluka kwamazinga e-expAN SIon eglasi kunye nesinyithi lubangela ukuba ijoyinti iqhekeke.
(-Kovar)
IKovar yi-alloy ye-nickel-cobalt ferrous efana neFernico, eyenzelwe ukuba ihambelane neempawu ze-thermal expAN SIon zeglasi ye-borosilicate (~5 × 10?6 /K phakathi kwama-30 nama-200 °C, ukuya kuma-~10 × 10?6 /K kuma-800 °C) ukuze kuvunyelwe unxibelelwano oluthe ngqo loomatshini kumanqanaba obushushu ahlukeneyo. Ifumana ukusetyenziswa kwii-conductors ze-electroplated ezifaka kwiimvilophu zeglasi zezixhobo ze-elektroniki ezifana neetyhubhu ze-vacuum (iivalvu), iityhubhu ze-X-ray kunye neetyhubhu ze-microwave kunye nezinye iibhalbhu zezibane.
Igama elithi Kovar lidla ngokusetyenziswa njengegama eliqhelekileyo lee-Fe-Ni alloys ezineempawu ezithile ze-thermal expAN SIon. Qaphela i-Fe-Ni alloy Invar ethile enxulumene nayo ebonisa ubuncinci be-thermal expAN SIon.

I-Alloy-4J29 yasungulwa ukuze ihlangabezane nesidingo sesitywino esithembekileyo seglasi ukuya kwisinyithi, esifunekayo kwizixhobo ze-elektroniki ezifana neebhalbhu zokukhanya, iityhubhu ze-vacuum, iityhubhu ze-cathode ray, nakwiinkqubo ze-vacuum kwikhemistri nakwezinye uphando lwesayensi. Uninzi lweentsimbi alunakuyitywina iglasi kuba i-coefficient yazo ye-thermal expAN SIon ayifani neglasi, ngoko ke njengoko ijoyinti iphola emva kokwenziwa, uxinzelelo olubangelwa kukwahluka kwamazinga e-expAN SIon eglasi kunye nesinyithi lubangela ukuba ijoyinti iqhekeke.

I-Alloy-4J29 ayinayo nje kuphela i-thermal expAN SIon efana neglasi, kodwa i-nonlinear thermal expAN SIon curve yayo inokwenziwa ukuba ifane neglasi, ngaloo ndlela ivumela i-joint ukuba inyamezele ubushushu obubanzi. Ngokwekhemikhali, inamathela kwiglasi ngokusebenzisa umaleko we-oxide ophakathi we-nickel oxide kunye ne-cobalt oxide; umlinganiselo we-iron oxide uphantsi ngenxa yokuncipha kwayo nge-cobalt. Amandla e-bond axhomekeke kakhulu kubukhulu kunye nophawu lwe-oxide layer. Ubukho be-cobalt benza kube lula ukunyibilika nokunyibilika kwe-oxide kwiglasi enyibilikisiweyo. Umbala ongwevu, ongwevu-oluhlaza okwesibhakabhaka okanye ongwevu-omdaka ubonisa uphawu oluhle. Umbala wesinyithi ubonisa ukungabikho kwe-oxide, ngelixa umbala omnyama ubonisa isinyithi esixineneyo kakhulu, kuzo zombini iimeko ezikhokelela kwi-joint ebuthathaka.

Isetyenziswa kakhulu kwizixhobo zombane zokucoca umoya kunye nolawulo lokukhupha umoya, ityhubhu yokutsha, ityhubhu yokutsha, imagnetron yeglasi, i-trAN SIstors, iplagi yesitywina, irelay, i-lead yeesekethe ezidibeneyo, i-chassis, iibrakethi kunye nezinye izitywina zezindlu.

Ulwakhiwo oluqhelekileyo%

Ni	28.5~29.5	Fe	Ibhala.	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

Amandla okuThamba, i-MPa

Ikhowudi yemeko	Imeko	Ucingo	Umcu
R	Ithambile	≤585	≤570
1/4I	Isiqingatha sesiqingatha	585~725	520~630
1/2I	Isiqingatha esiqinileyo	655~795	590~700
3/4I	3/4 Inzima	725~860	600~770
I	Kunzima	≥850	≥700

Iimpawu eziqhelekileyo zomzimba

Ubuninzi (g/cm3)	8.2
Ukumelana kombane kwi-20ºC(mm2/m)	0.48
Iqondo lobushushu le-resistivity(20ºC~100ºC)X10-5/ºC	3.7~3.9
Inqaku leCurie Tc/ºC	430
I-Elastic Modulus, E/ Gpa	138

I-coefficient ye-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

Ukuqhuba kobushushu

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

Inkqubo yokunyanga ubushushu
Ukuncedisa ukunciphisa uxinzelelo	Ishushu ukuya kuma-470~540ºC kwaye uyibambe iyure eyi-1~2. Yipholise
ukucoca	Kwi-vacuum eshushu ukuya kwi-750 ~ 900ºC
Ixesha lokubamba	Imizuzu eli-14~iyure eli-1.
Izinga lokuphola	Akunyanzelekanga ukuba ipholiswe ukuya kuma-200 ºC ngaphezulu kwe-10 ºC/min

Uhlobo lokubonelela

Igama lee-alloys	Uhlobo	Ubukhulu
I-Alloy-4J29	Ucingo	D= 0.1~8mm
I-Alloy-4J29	Umcu	W= 5~250mm	T= 0.1mm
I-Alloy-4J29	Ifoyile	W= 10~100mm	T= 0.01~0.1
I-Alloy-4J29	Ibhari	Ububanzi = 8~100mm	L= 50~1000