4J29-Kovar i hoʻoheheʻe ʻia i ka pahu Kovar bar/kovar sheet/kovar tube

Huahana Huahana

Nā inoa kālepa maʻamau: Kovar Alloy, 4J29, UNS K94610(FeNi29Co17),29HК Kovar,KV-1,29HК-BИ,Werkstoff Nr.1.3981

Hoʻopili ʻia kēia huila i ke aniani i hoʻopaʻa ʻia a hoʻopaʻa ʻia i ka alloy hoʻonui,He ahuina hoonui lainae like me ke aniani boron silika ma 20-450°C, akiʻekiʻe Curie wahi, a me ka maikai haʻahaʻa-mehana structural paʻa.ʻO ke kiʻiʻoniʻoni oxide o ka huila he ʻeleʻele a hiki ke maikaʻipulunaaniani.ʻAʻole pili me ka mercury a kūpono ia no ka hoʻohana ʻana i nā mika hoʻokuʻu i loko o ka mercury.ʻO ia ka mea hana hoʻopaʻa hoʻopaʻa nui no nā mea uila uila.

 

Kovar Alloy Chemical Composition
C Cr Ni Mo Si Mn P S Fe Co Cu
≤0.03 ≤0.2 28.5-29.5 ≤0.2 ≤0.3 ≤0.5 ≤0.02 ≤0.02 kaulike 16.8-17.8 ≤0.2
Kovar Nā waiwai kino
Māmā (g/cm3) Ka hoʻoili wela (W/m·K) Hiki ke pale aku i ka uila (μΩ·cm)
8.3 17 45
Kovar ʻAwelika hoʻonui hoʻonui
Papa Alloy

 

ʻO ka huina hoʻonui laina awelika a,10-6/ oC
  20-200

oC

20-300

oC

20-400

oC

20-450

oC

20-500

oC

20-600

oC

20-700

oC

20-800

oC

kovar 5.9 5.3 5.1 5.3 6.2 7.8 9.2 10.2

Kovar awelika hoʻonui laina laina ma ka laina

 

Papa Alloy Pūnaehana lapaʻau wela specimen ʻO ka huina hoʻonui laina awelika α,10-6/ oC
Kovar 20-300 oC 20-400 oC 20-450 oC
I loko o ka hydrogen lewa i wela i 900 ± 20 oC, insulation 1h, a laila wela i 1100 ± 20 oC, insulation 15min, i ole oi aku mamua o 5 oC / min rate o ka hooluolu ana i lalo o 200 oC hookuuia. ----- 4.6-5.2 5.1-5.5

Kovar typical hoʻonui coefficient

Papa Alloy ʻO ka huina hoʻonui laina awelika a,10-6/ oC
 Kovar 20-200oC 20-300 oC 20-400oC 20-450oC 20-500oC 20-600oC 20-700oC 20-800oC
5.9 5.3 5.1 5.3 6.2 7.8 9.2 10.2

Loaʻa nā huahana ʻo Kovar Alloy ma Sekonic Metals

Inconel 718 bar, inconel 625 bar

Kovar Bar & Rods

Nā lāʻau pōʻai/Paʻa paʻa/Paʻa Hex,Nui Mai 8.0mm-320mm, Hoʻohana ʻia no nā bolts, fastners a me nā ʻāpana ʻokoʻa ʻē aʻe

uwea wiliwili a me ka uwea puna

Uea Kovar

Hoʻolako ʻia ma ka uea kuʻi a me ka uea puna ma ke ʻano coil a ʻoki ʻia ka lōʻihi.

Pepa & Papa

Pepa a me ka pā Kovar

ʻO ka laulā a hiki i 1500mm a me ka lōʻihi a hiki i 6000mm, Mānoanoa mai 0.1mm a 100mm.

Kovar paipu ʻole a me Caplliary Tube

Hiki ke hana ʻia ka nui maʻamau a me ka nui i hoʻopili ʻia e mākou me ka hoʻomanawanui liʻiliʻi

ʻāʻī inconel, ʻōniʻoniʻo invar, stirp kovar

Kovar strip & coil

ʻO ke kūlana palupalu a me ke kūlana paʻakikī me ka ʻili ʻālohilohi AB, ka laulā a hiki i 1000mm

No ke aha ʻo Inconel Kovar ?

1. He nui ka hoʻohana ʻana o Kovar i ka ʻoihana uila, e like me nā ʻāpana metala i hoʻopaʻa ʻia i nā envelopes aniani paʻakikī.Hoʻohana ʻia kēia mau ʻāpana no nā mea like me nā paipu mana a me nā paipu X-ray, etc.
2.In ka semiconductor 'oihana kovar ua hoʻohana 'ia i loko o hermetically sila pūʻolo no nā mea hoʻohui a discrete kaapuni.
Hāʻawiʻiaʻo 3.Kovar i nāʻano likeʻole e maʻalahi i ka hana maikaʻiʻana o nā'āpana metala likeʻole.Loaʻa iā ia nā hiʻohiʻona hoʻonui wela e like me ke aniani paʻa.Hoʻohana ʻia no nā hui hoʻonui i hoʻohālikelike ʻia ma waena o nā metala a me ke aniani a i ʻole nā ​​ceramics.
4.Kovar alloy mea he māha hooheheeia, hao-nickel-cobalt, haʻahaʻa hoʻonui i ka mea hoʻohui kemika i hoʻomalu 'ia i loko o haiki palena e hōʻoiaʻiʻo pololei like thermal hoʻonui waiwai.Hoʻohana ʻia nā mana maikaʻi nui i ka hana ʻana i kēia alloy e hōʻoia i nā ʻano kino like ʻole a me nā ʻano mechanical no ka maʻalahi i ke kaha kiʻi hohonu, ke kahakaha ʻana a me ka mīkini.

Kovar Alloy Application kahua:

● Ua hoʻohana ʻia ʻo Kovar alloy no ka hana ʻana i nā sila hermetic me nā aniani Pyrex paʻakikī a me nā mea keramika.
● Ua loaʻa kēia huila i ka hoʻohana ākea i nā paipu mana, microwave tubes, transistors a me nā diodes.I nā kaapuni i hoʻohui ʻia, ua hoʻohana ʻia no ka ʻeke palahalaha a me ka pūʻolo pālua-in-line.


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