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Druckgussform aus Magnesium-Aluminium-Legierung

Die casting is a process of metal smelting and processing. It is a casting method that fills the cavity of a steel mold with molten alloy liquid at high speed under the action of high pressure, and solidifies the alloy liquid under pressure to form a casting. plastic injection”. The main features of die casting that distinguish it from other casting methods are high pressure and high speed.

Advantages of aluminum alloy die casting

 

High production efficiency: The machine has high productivity. For example, the domestic JIII3 horizontal cold air die-casting aluminum machine can die-cast aluminum 600-700 times in eight hours on average, and the small hot-chamber die-casting aluminum machine can die-cast aluminum 3000-7000 times per eight hours on average.

 

Excellent economic effect: due to the precise size of die-casting aluminum parts, the surface is smooth and clean. Generally, it is used directly without mechanical processing, or the processing volume is very small, so it not only improves the metal utilization rate, but also reduces a lot of processing equipment and man-hours. The castings are cheap, and combined die-casting aluminum can be used. , which saves both assembly man-hours and metal.

Druckgussform aus Magnesium-Aluminium-Legierung

Im Wettbewerb mit Aluminiumlegierungen als Konstruktionsmaterialien haben Magnesiumlegierungen die Vorteile einer geringen Dichte, eines hohen Festigkeitsverhältnisses, besserer elektromagnetischer Abschirmeigenschaften und Gießbarkeit. Dies führt zur bevorzugten Verwendung von Magnesiumlegierungen in 3K-Komponenten (Computer-, Kommunikations- und Verbraucherprodukte), bei denen geringes Gewicht, Wärmeableitung und elektromagnetische Abschirmung entscheidend sind. Sie haben auch extrem breite Anwendungen in den Bereichen Automobil, Luft- und Raumfahrt, Outdoor-Sportarten usw.

Mit der hohen Integration in 3C wird es dringlicher, die beim Betrieb von elektronischen Bauteilen und Wärmetauschern entstehende übermäßige Wärme abzuführen, die durch Überhitzung oder Verformung zum Ausfall der Bauteile führt. Die Nachfrage nach Materialien mit hervorragender Wärmeableitung und mechanischen Eigenschaften steigt rasant. Die Auswahl von Materialien mit geeigneter Wärmeleitfähigkeit ist sehr wichtig, um die beste Leistung von Komponenten zu erzielen.

Mg-Legierungen weisen aufgrund ihrer geringeren Wärmekapazität und besseren Wärmeableitungswirkung als Al-Legierungen ein großes Potenzial als Wärmeableitungsmaterialien auf. In den letzten Jahrzehnten wurden einige Anstrengungen unternommen, um die Wärmeleitfähigkeit von Mg-Legierungen mit einem klaren Verständnis der grundlegenden Wärmeübertragung auf Mikro-, Nano- und sogar molekularer Ebene zu verbessern. 

Mit dem Ziel, eine Mg-Legierung zu entwickeln, die im Vergleich zu den üblicherweise verwendeten AZ91D-Magnesiumlegierungen eine deutlich verbesserte Wärmeleitfähigkeit bieten kann, baute Zhongmei gemeinsam mit dem weltweit führenden Experten Prof. Pan Fusheng von der Chongqing University und seinem Team das Research Institute of Magnesium Alloy Materials auf.

Das Forschungsinstitut führt weiterhin Experimente und Tests durch und hat beachtliche Erfolge erzielt

Mg-Legierungen mit hoher Wärmeleitfähigkeit

Hauptvorteile

Verbesserte Wärmeleitfähigkeit von Magnesiumlegierungen – entscheidend in Anwendungen speziell zur Erhöhung der Wärmeaustauschkapazität und der Wärmesenke von technischen Komponenten.
Die verbesserte Wärmeleitfähigkeit kann die Arbeitstemperaturen von Endprodukten senken und somit die Energieeffizienz und Produktlebensdauer erhöhen.

Anwendungen

Elektrische Automobilindustrie

3C-Komponenten (Computer, Kommunikation und Verbraucherprodukt)

Komponenten von Kommunikationsbasisstationen und andere Kühlkörper

Die-casting magnesium aluminum alloy mold Products
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