山东CHARGING INTERFACE

The mobile phone charging tail plug that is used every day is produced by the MIM process. From the original round interface, the old long strip flat wide interface, the Micro USB interface, the Type c interface to the dedicated Lightning interface for Apple, the process is also behind the continuous improvement of functions.

MIM injection molding process is suitable for large production volume and small precision parts, and plays an important role in the 3C field. For some parts with high requirements, it can be completed through subsequent processes. Like charging interface.

As mobile phones become more and more powerful, in addition to the communication function, they can use them to brush videos to pass the rest time. Therefore, many people are always on the phone and use them more frequently. Increasing the customer experience will increase the mobile phone screen and enhance the mobile phone computing speed. On the contrary, the power consumption speed will become faster and faster, thus increasing the frequency of charging.

In order to strengthen the practicability of the charging interface and solve the problems of poor corrosion resistance, poor wear resistance and short service life, MIM parts need to add electroplating in the subsequent processing process.

Advantages of MIM in manufacturing mobile phone parts:

1. High efficiency, good at mass production of batch parts

MIM technology uses molds. Because of the high degree of production automation, its service life is equivalent to that of engineering plastic injection molding tools. Because of the use of metal dies, MIM is suitable for mass production of parts.

2. More refined parts

Alloying has good flexibility, wide application range of materials, the density of products reaches 95% - 99%, the internal organization is uniform, without internal stress and segregation, the surface finish is good, the precision is high, and the typical tolerance is ± 0.05mm.

3. Substantial energy and material conservation

MIM can use almost all metal materials. Considering the economy, the main application materials include iron based, nickel based, copper based, titanium based metals or alloys. Generally, the utilization rate of metal processing and molding is relatively low. For example, the utilization rate of raw materials for the metal shell of LeTV MAX mobile phone is less than 10%, and most of the aluminum alloys become debris. MIM can greatly improve the utilization rate of raw materials, which is 100% theoretically.

4. Structural parts with highly complex structure can be formed

Generally, the tolerance accuracy of ± 0.5% can be achieved with MIM, and higher dimensional accuracy can be achieved with other processing methods. Basically, all structures that can be realized by injection mold can be applied to MIM.

5. Environmental protection and safety

It is pollution-free and can realize continuous mass clean production. It is a near net forming technology and can effectively avoid material waste.

6. More material choices

Most metal materials can be used in MIM. In consideration of economy, the main application materials include iron base, nickel base, low alloy, copper base, high-speed steel, stainless steel, gram valve alloy, hard alloy and titanium base metal.