Smart watch case material inventory

 The appearance of a smart watch consists of the watch case, bottom cover, bezel, mirror and other components. The watch case is the shell of the watch body (watch head), which contains and protects the internal components of the watch (movement, dial, etc.).

The case is closely connected with the bottom cover, bezel, mirror and button, which largely determines the waterproof, dustproof, antimagnetic and seismic performance of the watch, and also affects the delicate appearance of the smart watch.

High quality watch case, is the pursuit of watchcase material process, commonly used watchcase material can be divided into three types of metals, plastics, ceramics, including stainless steel, aluminum alloy, titanium alloy, ceramics and liquid metal, zinc alloy, engineering plastics, elastomers, such as precision machining, can improve material itself at the same time, the characteristic of create the unique aesthetic feeling.

1, metal material 1, stainless steel

Stainless steel is known for its hardness and corrosion resistance. It has always been the favored material of the traditional Watch industry. It is also very popular on smart watches, mainly 316 and 304 stainless steel.

Stainless steel material processing is difficult, corrosion resistance and wear resistance, the surface can be electroplating, polishing, etching, sandblasting, wire drawing and other processes to create a variety of texture of the appearance effect.

2. Aluminum alloy

Refers to aluminum alloy aluminum alloy as the base to add a certain amount of other alloying elements, is one of the light metal material, the density is 2.63 ~ 2.85 g/cm, have higher strength, higher than strength close to alloy steel, than stiffness than steel, good casting properties and the plastic processing performance, good conductivity, thermal conductivity, good corrosion resistance and weldability, It can be used as structural material.

Aluminum alloy is not only strong and durable, but also more light than stainless steel and titanium alloy. It is also widely used in the case. It can be processed by polishing, sandblasting, wire drawing, anode and other processes to bring different appearance effects.

3. Titanium

Titanium is a light, hard, heat and cold resistant metal with an oxide film on its surface to prevent wear and corrosion. Titanium as a watch material, compared with stainless steel is more light, high hardness, scratch resistance, wear resistance, corrosion resistance, light weight and allergy, and titanium alloy thermal conductivity is low, as a watch material wear more comfortable.

Titanium metal surface color is dim, surface polishing processing brightness is not enough, can only sandblasting, wire drawing or electroplating, processing is difficult. At present, Apple, Samsung, Huami and other smart watches are equipped with titanium case.

4. Zinc alloy

Zinc alloy is based on zinc and other elements of the alloy, high strength, corrosion resistance, low melting point, good liquidity, easy to fusion welding, brazing and plastic processing. Zinc alloy has good shaping performance, mature surface treatment technology and high mass production capacity. It also has many applications in the field of smart watches, such as Lenovo Watch 9 smart Watch and Omthing Jianyue smart Watch.

5. Liquid metal

Liquid metal has low melting point, super molding ability, high yield strength, high hardness, excellent strength-weight ratio, ultra-high elastic limit, corrosion resistance, high wear resistance and unique acoustic characteristics, has been in the Omega, Panerhai and other well-known brands on the application. With the rise of smart watches, liquid metal is also a new material, and can also be used as the case material of smart watches.

Second, the ceramic

Zirconia ceramic with high hardness, wear resistance, close skin, not allergies, good heat resistance/soaking, no signal shielding, the surface is bright and clean, simple sense is a jade, suitable for mass production, low cost advantage, is an excellent material, wearable in recent years has been widely used in intelligent wear, including smart watches watchcase, table circle, bottom cover, strap, etc.

The perfect material for smart wear: zirconia ceramics

Three, plastic/elastomer

In addition to metal and ceramic materials, plastic is also a common material for smartwatch case, including polycarbonate PC, PA+ glass fiber, ABS, TPU, etc. They are light and easy to process, with good appearance and advantages in sports and entry-level smartwatches.

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