I-China Kover Expansion Alloy 4J29 Wire 0.008mm Yokukhiqiza Nokukhiqiza Imboni Ye-Vacuum Kagesi

I-Kover Expansion Alloy 4J29 Wire 0.008mm yemboni ye-Electric Vacuum Isithombe Esivelele

I-Kover Expansion Alloy 4J29 Wire 0.008mm yoMkhakha we-Electric Vacuum

Incazelo emfushane:

Imininingwane Yomkhiqizo

Imibuzo Evame Ukubuzwa

Amathegi Omkhiqizo

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

(Igama Elijwayelekile: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
I-Alloy-4J29 eyaziwa nangokuthi i-Kovar alloy. Yasungulwa ukuze ihlangabezane nesidingo sokuvala okuthembekile kwengilazi kuya kwensimbi, okudingekayo kumadivayisi kagesi afana nama-light bulbs, ama-vacuum tubes, ama-cathode ray tubes, kanye nasezinhlelweni ze-vacuum kumakhemikhali nakwezinye ucwaningo lwesayensi. Iningi lezinsimbi alikwazi ukuvala ingilazi ngoba i-coefficient yazo ye-thermal expAN SIon ayifani nengilazi, ngakho-ke njengoba i-joint iphola ngemva kokwenziwa, ukucindezeleka okubangelwa amazinga ahlukile e-expAN SIon engilazi nensimbi kubangela ukuthi i-joint iqhekeke.
(-Kovar)
I-Kovar iyi-alloy ye-nickel-cobalt ferrous efana ne-Fernico, eyenzelwe ukuhambisana nezici ze-thermal expAN SIon zengilazi ye-borosilicate (~5 × 10?6 /K phakathi kuka-30 no-200 °C, kuya ku-~10 × 10?6 /K ku-800 °C) ukuze kuvunyelwe ukuxhumana okuqondile kwemishini phezu kwamazinga okushisa ahlukahlukene. Ithola ukusetshenziswa kuma-conductors e-electroplated angena ezimvilophini zengilazi zezingxenye ze-elekthronikhi ezifana nama-vacuum tube (ama-valve), ama-X-ray nama-microwave tube kanye nama-lightbulb athile.
Igama elithi Kovar livame ukusetshenziswa njengegama elijwayelekile lama-Fe-Ni alloys analezi zakhiwo ezithile ze-thermal expAN SIon. Qaphela i-Fe-Ni alloy Invar ethile ehlobene ekhombisa i-thermal expAN SIon encane kakhulu.

I-Alloy-4J29 yasungulwa ukuze ihlangabezane nesidingo sokuvala okuthembekile kwengilazi kuya kwensimbi, okudingekayo kumadivayisi kagesi afana nama-light bulbs, ama-vacuum tubes, ama-cathode ray tubes, kanye nasezinhlelweni ze-vacuum kumakhemikhali nakwezinye ucwaningo lwesayensi. Izinsimbi eziningi azikwazi ukuvala ingilazi ngoba i-coefficient yazo ye-thermal expAN SIon ayifani nengilazi, ngakho-ke njengoba i-joint iphola ngemva kokwenziwa, ukucindezeleka okubangelwa amazinga ahlukile e-expAN SIon engilazi nensimbi kubangela ukuthi i-joint iqhekeke.

I-Alloy-4J29 ayinayo nje kuphela i-thermal expAN SIon efana nengilazi, kodwa ijika layo le-thermal expAN SIon elingaqondile lingenziwa lifane nengilazi, ngaleyo ndlela livumele ijoyinti ukuthi libekezelele izinga lokushisa elibanzi. Ngokwekhemikhali, ibophana nengilazi ngengqimba ye-oxide ephakathi ye-nickel oxide ne-cobalt oxide; isilinganiso se-iron oxide siphansi ngenxa yokuncipha kwayo ne-cobalt. Amandla ebhondi ancike kakhulu ekujiyeni kwengqimba ye-oxide kanye nobuntu bayo. Ukuba khona kwe-cobalt kwenza ingqimba ye-oxide ibe lula ukuyincibilikisa nokuyincibilikisa engilazini encibilikisiwe. Umbala ompunga, ompunga-oluhlaza okwesibhakabhaka noma onsundu ompunga ubonisa uphawu oluhle. Umbala wensimbi ubonisa ukuntuleka kwe-oxide, kanti umbala omnyama ubonisa insimbi e-oxidized ngokweqile, kuzo zombili izimo okuholela ekujoyintini okubuthakathaka.

Isetshenziswa kakhulu ezingxenyeni ze-vacuum kagesi kanye nokulawula ukukhishwa komoya, i-shock tube, i-igniting tube, i-glass magnetron, i-trAN SIstors, i-seal plug, i-relay, i-integrated circuits lead, i-chassis, ama-bracket kanye nokunye ukuvalwa kwezindlu.

Ukwakheka okuvamile%

Ni	28.5~29.5	Fe	Ibhalansi.	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 Okudonsa, i-MPa

Ikhodi yesimo	Isimo	Ucingo	Ukuhlubula
R	Ithambile	≤585	≤570
1/4I	1/4 Kanzima	585~725	520~630
1/2I	1/2 Kanzima	655~795	590~700
3/4I	3/4 Kanzima	725~860	600~770
I	Kunzima	≥850	≥700

Izakhiwo Ezijwayelekile Zomzimba

Ubuningi (g/cm3)	8.2
Ukumelana kukagesi ku-20ºC(mm2/m)	0.48
Ithempelesha yokumelana ne-resistant(20ºC~100ºC)X10-5/ºC	3.7~3.9
Iphuzu le-Curie 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 kwe-thermal

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

Inqubo yokwelapha ukushisa
Ukuhlanza ukucindezeleka	Kushiswe kufike ku-470~540ºC bese ubamba ihora eli-1~2. Kubanda
ukubopha	Ku-vacuum cleaner kushiswe ku-750 ~ 900ºC
Isikhathi sokubamba	Imizuzu eyi-14~ihora eli-1.
Izinga lokupholisa	Akudluli ku-10 ºC/min epholile ku-200 ºC

Isitayela sokunikezwa

Igama le-Alloys	Uhlobo	Ubukhulu
I-Alloy-4J29	Ucingo	D= 0.1~8mm
I-Alloy-4J29	Ukuhlubula	W= 5~250mm	T= 0.1mm
I-Alloy-4J29	Ifoyili	W= 10~100mm	T= 0.01~0.1
I-Alloy-4J29	Ibha	Ububanzi = 8~100mm	L= 50~1000