Metal Injection Molding Mobile Phone Accessories

Mobile phones are indispensable equipment for everyone. With the development of communication technology from 3G to 4G, and then to today's 5G, the shape of mobile phones is constantly changing. Driven by the fast-growing mobile phone industry, Metal Injection Molding (MIM) has also taken advantage of the ride and gained huge opportunities. Metal Injection Molding Mobile Phone Accessories are as follows: Metal Injection Molding Mobile Phone Metal Tray, Metal Injection Molding Volume Button, Metal Injection Molding Mobile Phone Interface, Metal Injection Molding Mobile Phone Camera Frame, Metal Injection Molding Mobile Phone Shaft Hinge, Metal Injection Molding Mobile Phone Gear, Metal Injection Molding Mobile phone screw, metal injection molding mobile phone slide rail and other precision components.

Product Description

1. Implementation standards: the company strictly implements ISO9001, ISO14001, IATF16949 certification

The products have passed the certification of ROHS, FDA EU, etc.

2. Product material standards: ISO, GB, ASTM, SAE, EN, DIN, BS, AMS, JIS, ASME, DMS, TOCT, GB

3. Main processes: metal injection molding MIM, powder metallurgy PM, investment casting, die-casting aluminum,

4. Available materials for powder metallurgy:

Copper alloy, iron base, titanium alloy, stainless steel base, aluminum alloy, nickel alloy, cobalt alloy, tungsten alloy, cemented carbide, hydroxy alloy, soft magnetic material and 3D printing can be customized according to customer requirements.

Product Category

The reason why MIM is favored by the mobile phone industry depends entirely on its own ability. In fact, before the maturity of MIM technology, there is still a traditional powder metallurgy method - PM. Its metal powder is usually 50-100 microns, which is much larger than the MIM 1-20 micron powder particles. Therefore, for small parts that require high precision and shape freedom, traditional technology is powerless.

In terms of technology, MIM combines the advantages of powder metallurgy and plastic injection molding, breaking through the limitation of traditional metal powder molding process in product shape, and also has plastic injection molding technology, which can form large-scale, high-efficiency and complex Therefore, it is possible to mass-produce small, precise, complex three-dimensional shapes and metal parts with special performance requirements - this is in line with the requirements of the 3C industry.

At present, well-known mobile phone manufacturers such as Apple, Huawei, and Samsung are all loyal fans of MIM. The finished products produced by MIM are generally small and delicate, not only high in density and precision, but also in very good surface finish, both in terms of performance and visual effects. All are top notch. So what kind of Metal Injection Molding Mobile Phone Accessories will MIM be used for?

Which phone parts require MIM?

The application of MIM technology in mobile phones is currently more familiar with mobile phone metal trays, volume buttons, mobile phone interfaces, camera frames, hinges, precision parts of lifting cameras, precision parts of dual-camera triple-camera cameras, gears, etc.

1. Mobile phone camera bracket

The camera function is essential for every mobile phone, but the mobile phone camera bracket is relatively small, the structure is relatively precise, and the performance requirements are relatively good. The ordinary production process is difficult to produce and the production cost is high. MIM can form various precision metal parts at one time, with few processing steps, fast forming, high material utilization rate, and mass production. It is very efficient for the production of mobile phone camera brackets.

For example, the "three-camera four-hole Yuba lens" that comes with the Huawei Mate20 series. Although the design appears to be a simple arrangement on the surface, for industrial design and stacking architecture, it is far from being as simple as it appears. Because the multi-lens of the mobile phone means that the lens, sensor, LED flash and other components must be firmly and safely assembled together, the bracket of the camera circle needs to become thinner, and the wall thickness, flatness, and contour of the product also need to be Higher requirements, all thanks to MIM powder metallurgy technology.

2. Folding screen hinge

The development of streaming media has made people have higher and higher requirements for the screen of smartphones. First, they must be large enough. However, limited by the usage scenarios, the current screen size has reached the bottleneck. After all, holding a phone as big as a tablet to make a call, it is unrealistic to think about it - the folding screen is the product of the current pursuit of a larger screen, which makes A tablet-sized mobile phone can be folded into the size of a normal mobile phone as much as possible.

The first core of the folding screen mobile phone is the hinge where the two screens of the mobile phone are folded, which almost determines the success or failure of the folding screen. In addition to the foldable and thin design, the shaft of the intermediate core component also needs to be light, flexible, thin, and reliable. The requirements for rotation accuracy and friction coefficient are particularly high, so MIM injection molding technology is very suitable, which can ensure progress, Strength and stability.

3. Mobile phone card tray

Since the mobile phone has evolved from the detachable structure design of the battery in the feature phone era to the non-detachable battery, there is a new design on the mobile phone - the SIM card tray. In order to enable the card tray to be automatically ejected under the elastic action of the ejection mechanism, save space and achieve a sufficiently beautiful effect, the production accuracy of the mobile phone card tray is required to be high, and it also needs to have performance advantages such as density, structural density, and wear resistance. MIM Injection moulding was agreed as a very suitable moulding technique for the production of mobile phone card trays.

4. Mobile phone lift camera

In recent years, users' pursuit of the screen ratio of mobile phones has reached an unprecedented level, so designers have tried their best to pursue breakthroughs. In order to move closer to a 100% full screen, a solution has been designed, that is, a lift-up camera. While solving the aesthetic problem of the screen, the mechanical control of "one lift and one drop" is also full of technological sense.

In order to realize the lifting function of the camera, the inside of the camera needs the support of micro precision parts such as screw rods and slide rails, and these parts need to be produced by MIM injection molding, which can not only be mass-produced, but also ensure the high precision of precision parts. quality, and the production cost is lower than that of traditional processes.

In the past few years, the MIM injection molding industry has been very stable in the shipment of precision parts such as dual-camera, triple-camera, and mobile phone card trays. While maintaining a stable foundation, accessories such as the hinge hinge, the core part of the folding screen, have also allowed MIM to continue to have new products. market opportunities.

At present, with the advantages of near net shape, almost no waste, and mass production, MIM is currently being recognized and applied in the mobile phone industry. The penetration rate of the field will also continue to increase, and the relevant market is very worth looking forward to!

Post Casting Process

1. Heat treatment: annealing, carbonization, tempering, quenching, normalizing, surface tempering

2. Processing equipment: CNC, WEDM, lathe, milling machine, drilling machine, grinder, etc.;

3. Surface treatment: powder spraying, chrome plating, painting, sandblasting, nickel plating, galvanizing, blackening, polishing, bluing, etc.

Moulds and Inspection Fixtures

1. Mold service life: usually semi-permanent. (except for lost foam)

2. Mold delivery time: 10-25 days, (according to product structure and product size).

3. Tooling and mold maintenance: Zhongwei is responsible for precision parts.

Quality Control

1. Quality control: the defective rate is less than 0.1%.

2. Samples and trial run will be 100% inspected during production and before shipment, sample inspection for mass production according to ISDO standards or customer requirements

3. Testing equipment: flaw detection, spectrum analyzer, golden image analyzer, three-coordinate measuring machine, hardness testing equipment, tensile testing machine.