Fine Ceramics, Advanced Ceramics, Alumina Ceramics, Al₂O₃
The precision ceramic parts produced by TOUCH-DOWN Technology can be made of high-purity ceramic raw materials, 92~97% alumina, 99.5% alumina, 99.9% alumina, and CIP cold isostatic pressing. High temperature sintering and precision machining, dimensional accuracy of ± 0.001mm, smoothness up to Ra0.1, use temperature up to 1600 degrees. Different colors of ceramics can be made according to customers' requirements, such as: black, white, beige, dark red, etc. The precision ceramic parts produced by our company are resistant to high temperature, corrosion, wear and insulation, and can be used for a long time in high temperature, vacuum and corrosive gas environment.
Fine Ceramics, Advanced Ceramics, ZrO₂
At Touchdown, many medical and ceramic products have been manufactured using zirconium oxide due to its superior characteristics and advantages, especially when the zirconium oxide and metal are combined. Zirconium oxide's low thermal conductivity and high endurance characteristic can easily offset ceramic's easy to break disadvantage.
Silicon carbide (SiC) features hardness second only to diamond and boron carbide and possesses high wear resistance, thus it's used for sliding parts (mechanical seals, etc.). In addition, it enjoys a high Young modulus and a small coefficient of thermal expansion, thus it's used for components (optical parts, substrates, etc.) that require high precision. Because it is a dense sintered body, it can be mirror-finished. It features high temperature resistance of over 1400°C and heat shock resistance with excellent chemical stability. It can be made into SiC glove, SiC sheath, sheet products and thick-walled products. Processed high purity SiC (high purity SiC) materials of DCG are often used as semiconductor manufacturing equipment parts.Silicon carbide (SiC) Precision Ceramic Processing: Silicon carbide (SiC) materials have higher mechanical strength than synthetic alumina and silicon nitride materials, especially in terms of high temperature resistance, wear resistance and corrosion resistance.Main Features: - Better wear resistance. - Better corrosion resistance. - Excellent oxidation resistance. - High thermal conductivity, good thermal conductivity. - Consistent strength under high-temperature environment. - High thermal conductivity, good thermal conductivity.Applications: - Grinder wear parts. - Ceramic bearings, heat exchangers. - Chemical pump parts, various nozzles. - High-temperature cutting tools, fire-resistant board. - Mechanical wear parts. - Steel reduction materials, arresters. - Other semiconductor manufacturing spare parts.
Silicon nitride ceramics are highly resistant to heat, shock and impact. Excellent heat resistance and impact resistance coupled with high strength make silicon nitride a priority for high temperature, high load applications.Common applications of silicon nitride ceramics: Semiconductor processing equipment, General industrial machinery, Heat-resistant parts.Silicon nitride is an important structural ceramic material. It is a super-hard atomic crystal material with lubricity, and wear resistance. It features anti-oxidation at high temperature and resistance to thermal shocks. When heated to 1000°C or above in the air, rapid cooling before heating rapidly will not cause fragmentation of it. It is because of the excellent characteristics of silicon nitride ceramic, people often use it to make bearings, turbine blades, mechanical seals, permanent molds and other mechanical components. If the heating surfaces of engine components are made of silicon nitride ceramics that are resistant to high temperatures and not easy to transfer heat, it can improve the quality of the diesel engine, save the fuel and improve thermal efficiency. China, the United States, Japan and other countries have already developed such diesel engine.
Quartz is a kind of glass like its name but what makes it different is that ordinary glass consists of many components, while quartz only consists of SiO₂. Because quartz contains very little amount of metallic impurities, only up to 10ppm (one hundred thousandth), the minimum state is usually only 10ppb (one over a billion) or less and because of its high purity, the quartz itself presents characteristics and advantages that other glass can not present.Quartz (SiO₂) material features extremely low thermal expansion coefficient, high temperature resistance, high abrasion resistance, good chemical stability, electrical insulation, low and stable retardation, near ultraviolet (infrared) ray visible light transmittance, high mechanical properties and so on.Therefore, high-purity quartz materials are widely used in modern electronic technology, semiconductor, telecommunications, electric light source, solar energy, national defense high-precision measuring instruments, laboratory physics and chemistry instruments, nuclear energy, nano-industries.Semiconductor Applications In the manufacturing process of semiconductor, the main quartz materials are used for quartz tube furnace, quartz boat, quartz ring, quartz tank, windows, process equipment and other related quartz components. Quartz processing include: surface grinding, polishing, cylinder cutting, cutting, groove processing, curve processing, special-shaped processing, ultra-fine hole drilling, film coating.