Brief introduction of titanium alloy metal powder injection molding technology

Brief introduction of titanium alloy metal powder injection molding technology

Metal powder injection molding technology is developed on the basis of powder metallurgy technology. Combined with plastic injection technology, the utilization rate of raw materials is close to 100%. It is a near net molding technology. The general operation process is: first, the prepared powder and binder are mixed and granulated to make granular feed, then the feed is molded on an injection molding machine to form a product body with a specific shape, and then the product with the required performance is obtained by degreasing and sintering. The advantages of titanium alloy metal powder injection molding are:

Titanium metal powder injection molding

1. It can realize the batch production of small 3D complex shape parts;

2. Uniform composition, fine structure and excellent mechanical properties;

3. It is easy to add alloy elements to prepare required materials;

4. It is easy to control the microstructure of the material.

In the injection molding process of powdered titanium alloy, the design of binder is a key link. It is responsible for successfully completing the injection of titanium alloy powder in the fluid state in the entire injection molding process, and can maintain the shape of the green body to play an important role in the pre sintering stage. However, the added adhesive has also become one of the most likely sources of pollutants in the entire injection molding process. In addition, higher binder content will reduce the filling amount of the powder, which will not only cause the shape collapse of the body after degreasing, resulting in deformation, cracking and other defects, but also increase the sintering shrinkage and seriously reduce the size accuracy. Product; Although the content of binder can ensure a high powder filling amount, it is difficult to prepare a feed with good fluidity, and the injection cannot be completed smoothly. Ensuring the balance between the content of binder and the amount of powder filling greatly increases the difficulty of agent research in the bonding process. It can be seen that although the final composition of sintered products cannot be determined by the binder, its selection and use will directly affect the subsequent degreasing and sintering process, thus affecting the product quality. Therefore, in the research work of metal powder injection molding titanium alloy technology, the focus is on the binder technology, which also holds the key to the problem.

The products and services provided by QinhuangdaoZhongweiPrecision Machinery Co., Ltd. can not only meet the needs of customers, but also exceed their expectations. We stand for the dual principles of quality and value.

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. was established in 1997 and is located in Changlihuang Dianzhuang Development Zone, Qinhuangdao. In 2013, it was recognized as a technology-based small and medium-sized enterprise by the Hebei Provincial Science and Technology Bureau; in 2014, it was recognized as a military-civilian integration enterprise by the Hebei Provincial National Defense Science and Technology Industry Bureau; in 2019, it was rated as a high-tech enterprise.