Bir, Demir-Nikel Belirli Genişleme Kaplama Demir Basınçlı Bağlama Alüminyumun Teknolojik Arka Planı ve Temel Avantajları

Demagnetizable Fe-Ni alloy is a special alloy that matches the thermal expansion coefficient of materials such as glass and ceramics by precisely controlling the proportion of iron (Fe) and nickel (Ni) (usually 42%-50% nickel content). Its core advantages are: 1) wide range of adjustable thermal expansion coefficient (4.5×10⁻⁶/℃ to 9.0×10⁻⁶/℃), compatible with different encapsulation materials; 2) excellent high-temperature stability, the expansion coefficient fluctuation is less than ±0.5×10⁻⁶/℃ in the range of -50℃ to 400℃; 3) good processing performance, thickness precision control of 0.05mm-3mm can be achieved through cold rolling, heat treatment and other processes. Qinchuan New Materials (Zhengzhou) Co., Ltd. relies on its independently developed vacuum melting technology to raise the purity of the alloy to over 99.95%, significantly reducing the impact of impurities on the expansion coefficient, providing a fundamental guarantee for high-precision packaging.

I. Teknolojik Yerleşim ve İşleme Kapasitesi Açıklaması İki. QinChuan Yenilikçi Malzemelerin

Qinchuan New Materials is located in the Zhengzhou High-tech Industrial Development Zone, with modern standard workshops and three special alloy dedicated production lines. Equipped with a German-imported vacuum induction melting furnace (maximum melting capacity 500kg), a four-roll cold rolling mill (thickness accuracy ±0.005mm), and a laser cutting machine (cutting accuracy ±0.02mm). In the analysis and testing phase, the company is equipped with a direct reading spectrometer (detection element range C-U), a metallographic microscope (magnification 100-1000 times), and a thermal expansion coefficient tester (test temperature range -150℃ to 1000℃), forming a full-process quality control system from raw materials to finished products. Taking a 5G communication base station filter packaging project as an example, Qingchuan New Materials successfully reduced the sealing gas leakage rate from the industry average of 3×10⁻⁸ Pa·m³/s to 0.8×10⁻⁸ Pa·m³/s by adjusting the nickel content to 46.5%, precisely matching the thermal expansion coefficient of the ceramic substrate (6.8×10⁻⁶/℃), significantly improving equipment reliability.

Üçüncü: Demir-nikel sabit genişleme alaşımının tipik uygulama senaryoları ve uygulamadaki önemli noktalar

Elektrodenkapselungsbereich, Nickel-Iron Determinationsextensionlegierungen werden hauptsächlich angewendet in: 1) Metalle-Ceramik-Beschichtung von Vakuumelektronenbauteilen (wie Travelpulsonenröhren, Magnetrohre); 2) Kühlplatten und Chip-Verbindung von Halbleiter-Leistungselektronik; 3) Hochdichte Verpackung von Luft- und Raumfahrt-Sensoren. In der Praxis sollten drei Parameter besonders beachtet werden: 1) Wärmebehandlung (gewöhnlich 1050℃ Lösungsgeschweiß + 450℃ Aushärten, um Verarbeitungsstress zu beseitigen); 2) Oberflächbehandlung (Elektrolytisches Polieren, um die Rauheit auf Ra0,2μm zu reduzieren, um die Verbindungskraft der Verpackungsfläche zu verbessern); 3) Kontrolle der Maßtoleranzen (bei einem Durchmesser von 50mm der Verpackungsscheibe, muss die Flächengleichheit ≤0,03mm betragen). Qinchuan New Materials hat durch die Einführung eines AI-Qualitätsvorhersagesystems die Verarbeitungsparameter mit der Endproduktleistung analysiert und die Qualitätsrate von 82% auf 95% gesteigert, die Lieferzeit um 30% verkürzt.

Dört, teknolojik zorluklar ve SSS çözümlemesi

Q1: How to solve the hysteresis effect when matching the coefficient of thermal expansion of the alloy with glass?
A: The delay effect is mainly caused by the residual stress within the alloy. Qinchuan New Materials adopts a graded aging treatment process (350℃/2h+400℃/4h), which increases the stress release rate to 92% and improves the repeatability of the expansion coefficient to better than ±0.3×10⁻⁶/℃。

Q2: How to alleviate the work hardening problem of high-nickel content alloys?
A: İçinik madeni %48'den fazla olan alaşımlar için, Qinchuan Yeni Malzemeler, soğuk çubuk deformasyon miktarını (tek seferlik deformasyon ≤15%) ve ara ısıtma sıcaklığını (780℃/1saat) optimize ederek işlenmiş katılaşma indeksini 0.32'den 0.18'e düşürmüş ve makine vida ömrünü %40 uzatmıştır.

Q3: Küçük miktarlı özel siparişlerin teslim süresini nasıl kontrol ederiz?
A: Şirket, eritme, kalıplama, ısı işleme gibi işlemleri standart birimlere ayırarak, esnek üretim planlama sistemini kullanarak 5kg-500kg siparişlerin tam süreç işlenmesini 72 saat içinde tamamlamayı sağlar ve araştırma ve geliştirme aşamasındaki hızlı döngü gereksinimlerini karşılar.