Semua produk
-
Alfred ***Kami menerima barang, semuanya berjalan dengan baik. kemasan yang sempurna, kualitas produk yang baik, harga yang baik - kami puas. -
Mei ***Kualitas produk sangat bagus, melebihi harapan saya, penggunaan sebenarnya sepenuhnya memenuhi kebutuhan saya, kami akan membeli lagi. -
Matthew***Saya membeli paduan ekspansi rendah dari Joy, Dia adalah wanita yang sangat bertanggung jawab, Kualitas produk Huona cukup bagus.
4J29 Kovar Alloy Bar for Glass to Metal Sealing with Controlled Thermal Expansion in Precision Electronic Applications
| Tempat asal | Cina |
|---|---|
| Nama merek | HUONA |
| Sertifikasi | ISO9001 |
| Nomor model | batang |
| Kuantitas min Order | 1 |
| Harga | NEGOTATION |
| Kemasan rincian | Pengepakan standar ekspor dalam karton atau peti kayu; kemasan khusus tersedia berdasarkan permintaa |
| Waktu pengiriman | 10–25 hari tergantung spesifikasi dan kuantitas |
| Syarat-syarat pembayaran | T/T |
| Menyediakan kemampuan | 5.000 – 10.000 pcs per bulan (dapat disesuaikan berdasarkan pesanan |
Detail produk
| Produk | Batang Paduan Kovar 4J29 | Tipe Paduan | Paduan Penyegel Kaca Fe Ni Co |
|---|---|---|---|
| Membentuk | batang bar bulat | Diameter | 3 mm hingga 100 mm Dapat disesuaikan |
| Panjang | Penyesuaian 500 mm 1000 mm 2000 mm | Kepadatan | 8,2 gram per cm3 |
| Koefisien Ekspansi Termal | 4,6 hingga 5,2 x10 minus6 per C | Rentang peleburan | 1450 hingga 1490 Masehi |
| Kemasan | Kemasan ekspor karton kasus kayu | ||
| Menyoroti | Glass to Metal Sealing Kovar Alloy Bar,Controlled Thermal Expansion Kovar Alloy Rod,Precision Electronic Applications Iron Nickel Cobalt Alloy Bar |
||
Deskripsi Produk
4J29 Kovar alloy bar is a precision iron nickel cobalt alloy containing controlled thermal expansion characteristics.
It is widely used for glass to metal sealing applications due to its thermal expansion coefficient closely matching borosilicate glass and ceramics.
The alloy provides stable dimensional performance under temperature changes and is commonly used in electronic vacuum devices and precision sealing structures.
Key Features
Controlled low thermal expansion alloy
Excellent glass to metal sealing performance
Stable mechanical properties under temperature variation
Good machinability and dimensional stability
Suitable for precision electronic and vacuum applications
Typical Chemical Composition
| Element | Content |
|---|---|
| Fe | Balance |
| Ni | 28 to 30 percent |
| Co | 16 to 17 percent |
| Mn | less than 0.5 percent |
| Si | less than 0.3 percent |
| C | less than 0.03 percent |
Technical Specifications
| Item | Specification |
|---|---|
| Product | 4J29 Kovar Alloy Bar |
| Alloy Type | Fe Ni Co Glass Sealing Alloy |
| Shape | Round Bar Rod |
| Diameter | 3 mm to 100 mm Customizable |
| Length | 500 mm 1000 mm 2000 mm Customizable |
| Density | 8.2 g per cm3 |
| Thermal Expansion Coefficient | 4.6 to 5.2 x10 minus6 per C |
| Melting Range | 1450 to 1490 C |
| Surface Finish | Bright Black or Polished |
| Packaging | Wooden case carton export packing |
| MOQ | Negotiable |
Applications
Glass to metal sealing components
Electronic vacuum devices
Transistor and semiconductor packaging
Aerospace precision components
Relay and sensor housings
Instrumentation and control systems
Advantages
Excellent thermal expansion matching with glass
High sealing reliability and stability
Good machinability and formability
Stable performance under thermal cycling
Suitable for precision electronic applications
Supply and Delivery
Supply Capacity
5000 to 8000 kg per month depending on specification
Lead Time
10 to 20 days depending on quantity
Packaging
Standard export wooden case or carton
Custom packaging available upon request
Inquiry Guidance
Please advise required diameter length surface condition and application environment. We will recommend the most suitable 4J29 Kovar alloy bar specification for your project.
Rekomendasi Produk
