Vacuum die-casting of pvd coating machine is a technology that can be used by titanium casting manufacturers. pvd coating machine can improve the quality of castings and reduce costs.

As the application of titanium castings in the aviation industry continues to grow, various manufacturers are committed to seeking production methods that can reduce production costs to replace high-cost titanium parts, especially in today's world of quiet competition and fierce competition. Therefore, titanium castings with lower cost and similar mechanical properties to castings can not only replace existing titanium and titanium parts, but also parts of other materials. VDC technology is developed for the production of high-quality, low-cost titanium castings. Typical applications for its castings include aircraft bodies and other aerospace and industrial parts.

pvd coating machine die-casting technology is used to produce aluminum, magnesium, zinc, copper-based alloy castings, and has been used in the machinery manufacturing industry for many years. This type of die casting is produced by melting the metal in the atmosphere, and then injecting the molten metal into the mold under high pressure. The casting is a net shape or a near net shape, and the final shape can be obtained by slightly processing or processing after casting. The processing cycle of this process is short, and the time from the molten metal to the net shape is usually less than 15S.

The requirements of vacuum coating machines for titanium die-casting technology are completely different from traditional titanium alloys. The most important thing is that the metal melting chamber and the mold must maintain a high vacuum. Otherwise, the casting has a large oxygen content and cannot meet the technical conditions of aerospace alloys. The method of vacuum die-casting titanium castings of vacuum coating machine is the same as the standard die-casting process, except that the vacuuming time of the melting chamber/mold cavity and the melting time of titanium alloy should be extended. The vacuum die-casting process of vacuum coating machine adopts titanium alloy separate charging and induction shell Smelting. Compared with the continuous casting method of die-cast aluminum, the melting time takes 5 minutes longer.

Compared with other methods such as investment casting, the pvd coating machine vacuum die-casting titanium castings has a simple process, so the cost is generally lower. The vacuum die-casting process does not require dewaxing, shelling and chemical cleaning, and the process is reduced by half, compared with investment casting Or the forging process can save about 30% of the cost. Since the mold of vacuum die casting is directly in contact with molten titanium, its service life is shortened, and the cost of the mold part is larger compared with investment casting.

At present, the vacuum die-casting method of pvd coating machine can only cast some integral, single-sided, simple-shaped titanium castings, while investment casting can cast very complex-shaped castings and hollow castings. In addition, vacuum die-casting can only have castings each time. The maximum size of the casting is 18kg. The castable titanium alloys are Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-15V-3Al-3Cr— 3Sn and Alloy C.