4J29-Kovar i hoʻoheheʻe ʻia i ka pahu Kovar bar/kovar sheet/kovar tube
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.
| 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 |
| Māmā (g/cm3) | Ka hoʻoili wela (W/m·K) | Hiki ke pale aku i ka uila (μΩ·cm) |
| 8.3 | 17 | 45 |
| 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
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
Uea Kovar
Hoʻolako ʻia ma ka uea kuʻi a me ka uea puna ma ke ʻano coil a ʻoki ʻia ka lōʻihi.
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
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.
