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52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery

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Ik zoek naar Nichrome-oude plaat, en kocht het met succes van Ohmalloy-materiaal. OHMALLOY verleent de echte goede dienst in de legeringsdienst en kan me in het vinden van de correcte weerstandslegering altijd helpen.

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Geëmailleerde Constantan 0.08mm, denk ik nooit om slechts 2kg van het te krijgen. Maar OHMALLOY voorziet het aan me van goede kwaliteit. God Jesus! Zulk een betrouwbare leverancier van China

—— Aaron

52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery

52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery
52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery 52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery 52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery 52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery 52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery 52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery

Grote Afbeelding :  52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery Beste prijs

Productdetails:
Plaats van herkomst: CHINA
Merknaam: OHMALLOY
Certificering: ASTM F30
Modelnummer: Ohmalloy-FeNi52
Betalen & Verzenden Algemene voorwaarden:
Min. bestelaantal: 20kg
Verpakking Details: Houten-geval
Betalingscondities: T/T, L/C,
Gedetailleerde productomschrijving
Materiaal: Alloy52 TYPE VAN MATERIAAL: Precisielegering
Diameter: 0.05mm~10mm Pakket: Spool&Coil
Rolgewicht: 5~50KG Algemene naam: FeNi52
Toepassing: Glas/metaal- Verbinding Chemie: Fe, Ni-Legering
Legeringstype: Uitbreidingslegering

52H Glass Sealing52 Vacodil 520 Wire 0.5mm and 0.8mm large in stock with fast delivery

Product Description
The iron-nickel fixed expansion alloy is a series of fixed expansion alloys that can be matched with soft glass and ceramics with different expansion coefficients in a given temperature range by adjusting the nickel content. The expansion coefficient and Curie point increase with the increase of nickel content. This combination gold is a widely used sealing structure material in the electric vacuum industry
 

Chemical Composition

Grade C% P% S% Mn% Si% Cu% Cr% Mo% Ni% Co% Fe%
Alloy52 Max 0.05 Max 0.020 Max 0.020 Max 0.80 Max 0.30 / / / 51.5~52.5 / Bal.

 

Specifications

Grade Common Name Common Name
Alloy52 Vacodil520 NILO 52

 

Physical Properties

Grade Density Resistivity
Alloy52 8.25 g/cm3 0.43

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Grain size of Alloy52
The grain size of the alloy deep-drawing belt should not be less than level 7, and the grain size less than level 7 should not exceed 10% of the area. When the average grain size of the strip with a thickness of less than 0.13mm is estimated, the number of grains along the thickness of the strip should be no less than 8.

 

Welding performance of Alloy52
The combined gold has good welding performance and can be brazed and spot welded. The combination of gold and soft glass should be pre-oxidized before sealing.

 

Coefficient of Expansion

Alloy Linear Coefficient of Thermal Expansion a,10-6/°C
20-200°C 20-300°C 20-350°C 20-450°C 20-500°C 20-600°C 20-700°C 20-800°C
Kovar 10.4 10.2 10.3 10.3 10.3 10.8 / /

Heat Treatment For Alloy52
(1) Stress relief annealing In order to eliminate the residual stress of parts after machining, stress relief annealing is required: 430~540℃, heat preservation 1~2h, furnace cooling or air cooling. [1]
(2) Intermediate annealing In order to eliminate the work hardening phenomenon caused by the alloy in the process of cold rolling, cold drawing and cold stamping, in order to facilitate the continued processing. The workpiece needs to be heated to 700~800℃ in a vacuum or protective atmosphere for 30~60min, then furnace cooled, air cooled or water quenched.
(3) Pre-oxidation treatment When the combined gold is used as a sealing material, it should be pre-oxidized before sealing. A uniform and dense oxide film is formed on the surface of the alloy. The parts are heated in saturated wet hydrogen at 1100°C for 30 minutes, and then oxidized in the air at about 800°C for 5-10 minutes. The weight gain of the parts should be 0.1~0.3mg/cm2

 

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Contactpersoon: Jully

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