SZPK uses aramid fiber (also known as Kevlar), carbon fiber and other new materials to make electronic product accessories.
The company has always been pursuing innovation in the technology and application of aramid fiber and carbon fiber, and breakthroughs in production technology to respond to the expectations of loyal users.
In 2012, SZPK launched the world's first aramid fiber phone case embedded with magnetic plates.
This brand is ready to use new materials such as aramid fiber and carbon fiber materials. From the protective case, trunk, to the small keychain and data cable, all have corresponding high-performance fiber materials.
"All our products will use these new materials instead of common plastics and other materials for production. These new materials not only have better performance, longer design life, their own texture and texture, but also bring a unique aesthetic feeling and charm to the products." The CTO answered when asked about the selection criteria.
It is reported that aramid fiber is one of the most tenacious materials in the world and is widely used in fighter planes, light tanks, bulletproof cash carriers, bulletproof vests, etc. The strength is 5-6 times that of steel, the toughness is 2 times that of steel, and the weight is only 1/5 of that of steel.
The application of aramid fiber, carbon fiber and other materials to consumer products requires more complex processes and technologies than many mechanical applications.
Different from industrial applications, digital consumer goods will be held in the hands of users for close observation, so there are strict requirements on accuracy and skin affinity.
Taking aramid fiber protective shell as an example, its production process includes dozens of processes from yarn weaving, prepreg, mold forming, cutting, etc; The process control of each process is crucial.
The innovation in process technology is profound
Although the performance of conventional aramid fiber is excellent, it is difficult to dye the fiber itself, so the product design will be limited by the fiber color.
Generally speaking, the aramid protective shell is only monochrome, and the weave texture is relatively simple, usually twill weave.
In order to provide users with more choices of colors and textures, SZPK has set up a weaving factory and constantly tried the weaving skills of aramid fiber.
In 2021, SZPK combined some traditional spinning and weaving techniques with high-tech aramid fiber materials and launch its landmark "fusion weaving" series.
Different from other manufacturers' simple glue fitting, SZPK weaves the color directly on the aramid fiber material, avoiding the gap caused by color block splicing, and finally makes the aramid protective shell show more fashionable color combinations.
Therefore, the "fusion aramid protective shell" has become a rare protective shell with both technology and fashion on the market.
In order to make the protective shell have both the toughness and feel of aramid fiber and the encapsulation and elasticity of TPU plastic, it is necessary to seamlessly combine aramid fiber and TPU on the protective shell.
To this end, after more than two years, the company's R&D team has developed a new "quenching and heating" molding process.
Use customized equipment and a special resin to heat the aramid fiber from normal temperature to more than 200 ℃ in 90 seconds, then use hundreds of tons of pressure for hot pressing, and then let the aramid fiber drop from more than 200 ℃ to normal temperature in an instant.
The rapid heating and cooling and the huge pressure make the molding of aramid fiber extremely accurate and stable.
"Before that, the usual molding method of aramid fiber industry was vacuum hot pressing, which was difficult to ensure the uniformity of pressure, the accuracy of molding and the consistency of products, let alone the combination with other materials.