Innovation Research & Development High-end Technologies and Patents
Capitalizing on our industry leading R&D and innovation capabilities, Ka Shui has persistently engaged in the research and development of materials, technologies and services. Our innovative technologies have won several national patents and created new trends of application for downstream industries.
New Energy Automotive and Lightweight
Ka Shui is a high-tech enterprise engaged in R&D, production and sales. In order to relieve the pressure of energy shortage brought by automotive industry and reduce environmental pollution, our company, with many years’ experience of producing auto parts for renowned auto companies, The Group actively explores the market of new energy automobile and promotes automobile lightweight.
Compared with the traditional vehicles, the reduction of new energy automobile weight has become urgent because it’s affected by the weight of battery and battery mileage range. The lightweight body can improve automobile’s speed, handling capacity, and also enhance battery vehicle voyage course. Since the density of aluminum is about 1/3 of steel, using aluminum alloy instead of steel in manufacture of automobile can reduce 30%-40% of its overall weight.
Therefore, Ka Shui Group has participated in the development of the key parts of new energy and lightweight automobile – drive motor box and motor controller box which uses A356 aluminum alloy and T6 treatment that can make the metal part lightweight and reach high strength performance. To reduce weight of metal part is comparatively easier than reducing the battery’s weight, not only reduce the overall body’s weight but also enhance battery vehicle voyage course. Using high strength metal to replace steel can meet the safety standard of auto parts.
· Production Process: Low pressure casting
· Used A356 Aluminum Alloy and T6 Treatment
· The Surface Hardness is 80HBS
· The tensile Strength is 235MPa
· CNC Processing
· Shot Blasting Surface Treatment
Ultra-thin Mg-RE Laptop Casing
The lightweight ultra-thin rare earth magnesium alloy developed by Ka Shui has been successfully applied in 13-inch laptop casings. With thickness of 0.5mm and weighing merely 60g, the casing effectively reduces material costs while satisfying the demand for lighter and more stylish products.
Rare Earth Magnesium Alloy Products
In joint efforts with the Chinese Academy of Sciences, Ka Shui developed a rare earth magnesium alloy for 3C products and auto parts. This revolutionary material significantly improves the performance of die casting magnesium alloy, thereby enhancing product quality.
· Improved fluidity
· Increased heat conductivity and heat dissipation
· Increased high temperature and
room temperature strength
· Enhanced corrosion resistance
High Strength Rare Earth Magnesium Alloy
Energy saving, environmental friendly, safety, comfort and digitalization are pursuits of the automobile market and industry, they have also become important elements of technological development trends. The lightweight of automobile refers to the combination of design, use of materials and manufacturing technologies to achieve lighter weight automobile products under safety assurance and cost control contexts. Regardless of the types of fuel power used, lightweight of automobile is the best way to achieve high speed, safety, environmental friendly and comfort. Therefore, the development of low cost, high strength rare earth magnesium alloy can meet lightweight vehicle demands, which also promotes the development and applications of the magnesium alloy in higher technology intensive industries.
Based on the development of AZ91D, advantages include:
· Tensile strength increases 15%
· Yield strength increases 20%
· Elongation rate increases 60%
Heat Dissipation Rare Earth Magnesium Alloy
As the lightest structural material, magnesium alloy is known as one of the "green engineering materials in the 21st century" and national strategic reserve of resources, which has gained a lot of attention from researchers worldwide. Under room temperature, magnesium alloy has good casting characteristic performance, is easy for molding, has excellent mechanical properties, good dimensional stability and electromagnetic shielding performance. Moreover, it is also a material good for shock absorption and noise reduction. Therefore, magnesium alloy is widely used in aviation, aerospace, national defense, transportation, 3C products and so on.
In recent years, because of its good thermal properties, magnesium alloy has also been applied in lighting, communications and other fields, but when temperature exceeds 120℃, the strength and creep resistance of magnesium decreases significantly; Basically, the thermal conductivity of magnesium alloy is comparatively weak, such as AZ91D alloy's thermal conductivity is only 72w/m∙k at the same time, magnesium alloys chemical properties leads to itself having poor corrosion resistance properties which cannot meet the conventional surface treatment process for uses under outdoor harsh environments. These defects restrict the alloy to be widely used in electronic, communication, traffic, lighting and other industries. By improving the thermal conductivity and the high temperature properties of magnesium alloy this can expand the application of magnesium alloy, promoting the development and application of magnesium alloy in higher technology and high value-added industries.
Tensile strength characteristics based on the upgrade of AZ91D:
· 200℃ increases 50%
· 250℃ increases 71%
· 300℃ increases 19%
· The microstructure is obviously improved
· Grain structure is more uniform and refined
MCC Surface Treatment
Aluminum and Magnesium Alloy Micro-arc Composite Ceramic (MCC) refers to a short flow and non-polluting environmental surface treatment technology that prepares micro-arc composite to meet the requirements for coating compounds in subsequent processes under different circumstances. The technology delivers superior surface protection results and fulfils the requirements for product surface performance under different environmental conditions.
Graphene Composite Coating
Graphene is a super light material, with a density of only 0.77mg/m3. Until now, graphene is the thinnest, hardest and toughest nanoscale material. Graphene has good thermal conductivity, the thermal conductivity of a monolayer of graphene can reach as high as 5300 w/m・K, which is better than carbon nanotubes and diamond. Moreover, graphene is the conducting material with lowest resistivity of 10-8Ω∙cm, which is even lower than silver metal.
· Excellent Electrical Conductivity
· Excellent Thermal Conductivity
· Good Corrosion Resistance
· Electromagnetic Shielding