ʻO Kina Kover Expansion Alloy 4J29 Wire 0.008mm no ka Hana ʻana a me ka Hale Hana Vacuum Uila

ʻO ke kaula hoʻonui ʻo Kover Alloy 4J29 0.008mm no ka ʻoihana Vacuum uila Kiʻi i hōʻike ʻia

ʻO ka uea hoʻonui ʻo Kover Alloy 4J29 0.008mm no ka ʻoihana vacuum uila

Wehewehe Pōkole:

Nā kikoʻī huahana

Nā nīnau i nīnau pinepine ʻia

Nā Lepili Huahana

Hoʻonui ʻia ka Alloy Kovar Wire Alloy-4J29

(Inoa maʻamau: Kovar, Nilo K, KV-1, Dilver Po, Vacon 12)
ʻIke ʻia hoʻi ʻo Alloy-4J29 ʻo Kovar alloy. Ua hana ʻia e hoʻokō i ka pono no kahi sila aniani-a-metala hilinaʻi, ka mea e pono ai i nā mea uila e like me nā kukui uila, nā paipu vacuum, nā paipu kukuna cathode, a me nā ʻōnaehana vacuum i ke kemika a me nā noiʻi ʻepekema ʻē aʻe. ʻAʻole hiki i ka hapa nui o nā metala ke sila i ke aniani no ka mea ʻaʻole like ko lākou coefficient o ka thermal expAN SIon me ke aniani, no laila ke anuanu ka hui ma hope o ka hana ʻana, ʻo nā pilikia ma muli o nā helu expAN SIon ʻokoʻa o ke aniani a me ka metala ke kumu o ka haki ʻana o ka hui.
(-Kovar)
He ʻano hui hao nickel-cobalt ʻo Kovar e like me Fernico, i hoʻolālā ʻia e kūlike me nā ʻano hoʻonui wela o ke aniani borosilicate (~5 × 10⁺6 /K ma waena o 30 a me 200 °C, a i ~10 × 10⁺6 /K ma 800 °C) i mea e ʻae ai i nā pilina mechanical pololei ma luna o nā ʻano mahana. Loaʻa iā ia ka hoʻohana ʻana i nā alakaʻi electroplated e komo ana i nā envelopes aniani o nā ʻāpana uila e like me nā paipu vacuum (valves), nā paipu X-ray a me microwave a me kekahi mau kukui uila.
Hoʻohana pinepine ʻia ka inoa ʻo Kovar ma ke ʻano he huaʻōlelo laulā no nā mea hoʻohuihui Fe-Ni me kēia mau waiwai hoʻonui wela SIon. E hoʻomaopopo i ka mea hoʻohuihui Fe-Ni pili ʻo Invar e hōʻike ana i ka hoʻonui wela SIon liʻiliʻi loa.

Ua hana ʻia ʻo Alloy-4J29 e hoʻokō i ka pono no kahi sila aniani-a-metala hilinaʻi, ka mea e pono ai i nā mea uila e like me nā kukui uila, nā paipu vacuum, nā paipu kukuna cathode, a me nā ʻōnaehana vacuum i ke kemika a me nā noiʻi ʻepekema ʻē aʻe. ʻAʻole hiki i ka hapa nui o nā metala ke sila i ke aniani no ka mea ʻaʻole like ko lākou coefficient o ka hoʻonui wela SIon me ke aniani, no laila ke anuanu ka hui ma hope o ka hana ʻana, ʻo nā pilikia ma muli o nā helu hoʻonui SIon ʻokoʻa o ke aniani a me ka metala ke kumu o ka haki ʻana o ka hui.

ʻAʻole wale ka Alloy-4J29 i ka thermal expAN SIon e like me ke aniani, akā hiki ke hana pinepine ʻia kona piʻo thermal expAN SIon nonlinear e kūlike me ke aniani, no laila e ʻae ana i ka hui e ʻae i kahi ākea o ka mahana. Ma ke ʻano kemika, hoʻopili ia i ke aniani ma o ka papa oxide waena o ka nickel oxide a me ka cobalt oxide; haʻahaʻa ka hapa o ka hao oxide ma muli o kona hōʻemi ʻana me ka cobalt. ʻO ka ikaika o ka hoʻopaʻa ʻana e hilinaʻi nui ʻia i ka mānoanoa a me ke ʻano o ka papa oxide. ʻO ke alo o ka cobalt e maʻalahi ai ka papa oxide e hoʻoheheʻe a hoʻoheheʻe i loko o ke aniani hoʻoheheʻe ʻia. ʻO ke kala hina, hina-uliuli a hina-ʻeleʻele paha e hōʻike ana i kahi sila maikaʻi. Hōʻike ke kala metala i ka nele o ka oxide, ʻoiai ʻo ke kala ʻeleʻele e hōʻike ana i ka metala i oxidized nui ʻia, ma nā hihia ʻelua e alakaʻi ana i kahi hui nāwaliwali.

Hoʻohana nui ʻia i nā ʻāpana vacuum uila a me ka kaohi hoʻokuʻu ʻana, ka paipu haʻalulu, ka paipu hoʻā, ka magnetron aniani, nā trAN SIstors, ka plug sila, ka relay, ke alakaʻi kaapuni i hoʻohui ʻia, ka chassis, nā brackets a me nā sila hale ʻē aʻe.

ʻAno maʻamau%

Ni	28.5~29.5	Fe	Bal.	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

Ikaika Tensile, MPa

Code o ke kūlana	Kūlana	Uea	ʻOkiʻoki
R	Palupalu	≤585	≤570
1/4I	1/4 Paʻakikī	585~725	520~630
1/2I	1/2 Paʻakikī	655~795	590~700
3/4I	3/4 Paʻakikī	725~860	600~770
I	Paʻakikī	≥850	≥700

Nā waiwai kino maʻamau

Ka nui (g/cm3)	8.2
Ke kū'ē uila ma 20ºC (mm2/m)	0.48
ʻO ka mea wela o ka resistivity(20ºC~100ºC)X10-5/ºC	3.7~3.9
Kiko Curie Tc/ ºC	430
Modulus Elastic, E/ Gpa	138

Ka helu o ka 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

Ka hoʻokele wela

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

Ke kaʻina hana mālama wela
Hoʻoheheʻe ʻana no ka hoʻomaha ʻana i ke kaumaha	Hoʻomehana ʻia i 470 ~ 540ºC a paʻa no 1 ~ 2 h. Hoʻoanuanu
hoʻomehana ʻana	I loko o ka mīkini hoʻomehana i hoʻomehana ʻia i 750 ~ 900ºC
Ka manawa paʻa	14 minuke~1 hola.
Ka helu hoʻoluʻu	ʻAʻole iʻoi aku ma mua o 10 ºC/min i hoʻomaʻalili ʻia i 200 ºC

Kaila o ka hoʻolako ʻana

Inoa o nā Alloys	ʻAno	Ana
Alloy-4J29	Uea	D= 0.1~8mm
Alloy-4J29	ʻOkiʻoki	W= 5~250mm	T= 0.1mm
Alloy-4J29	Pepa kini	W= 10~100mm	T= 0.01~0.1
Alloy-4J29	Pā	Dia = 8 ~ 100mm	L= 50~1000