The electronic layer structure and physicochemical properties of rare earth elements, along with their symbiotic behavior in minerals and varying ionic radii, lead to a wide range of unique characteristics. These elements are typically categorized into two groups based on their atomic weight and chemical behavior: Light rare earth elements include: lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, and terbium. Heavy rare earth elements include: dysprosium, holmium, erbium, thulium, ytterbium, lutetium, and scandium. The specific surface area of rare earth materials is a crucial parameter used to evaluate their performance in various applications. It refers to the total surface area per gram of a solid material, measured in square meters per gram (m²/g). The national standard for measuring specific surface area is the BET multi-point method, as outlined in GB/T 19587-2004. This method involves measuring the amount of nitrogen adsorbed by the sample at different partial pressures within the range of 5–30%. Using the BET equation, the monolayer saturation capacity can be calculated, which helps determine the specific surface area. The 3H-2000 series specific surface area analyzer is a high-precision instrument designed according to national standards for surface area testing. It incorporates seven leading technologies developed in China, including an integrated in-situ purge system that simplifies purging between different nitrogen pressure points, improving efficiency and reducing measurement errors. It also features a program-controlled wind-heat assistance device that ensures automated operation, producing sharp desorption peaks and minimizing background noise. Additionally, it includes a chromatographic concentration detection system that enhances nitrogen pressure detection accuracy by tenfold compared to traditional flow methods. The six-way valve injector and program-controlled quantitative tube switching further improve precision and reliability. The instrument also offers a unique granule report function, real-time software display, and a large LCD screen for clear monitoring of operational parameters. It includes safety features such as liquid nitrogen temperature monitoring, detector gas shutoff protection, thermostat control, and sound alerts for critical components, ensuring safe and accurate measurements. Applications of the 3H-2000 series include: - Battery materials: graphite, lithium iron phosphate, lithium cobalt oxide, lithium manganate, lithium nickel cobalt oxide, cobalt oxide, lithium titanate, ternary materials, battery materials, lithium manganese materials, magnesium manganese materials, carbon materials, nickel hydrogen materials, nickel-cadmium materials, separators, electrolytic manganese dioxide, graphite powder, nickel hydroxide, nickel foam, modified graphite materials, positive and negative electrode materials. - Ceramic raw materials: alumina, zirconia, silicates, aluminum nitride, silicon dioxide, cerium oxide, silicon nitride, quartz, silicon carbide. - Metal oxides: alumina, zinc oxide, calcium oxide, sodium oxide, magnesium oxide, cerium oxide, iron oxide, copper oxide, titanium oxide, titanium dioxide, titanium, zirconium oxide, metal oxides. - Environmental protection industry: pigments, inorganic pigments, calcium carbonate, silica, mineral powders, sediments, suspended solids. - Metal materials: silver powder, iron powder, copper powder, tungsten powder, nickel powder, aluminum powder, cobalt powder. This advanced equipment is widely used across multiple industries to ensure accurate and reliable surface area analysis, supporting research and development in material science and industrial applications.

Automation Light Curtain

This Automation curtain is specially designed for automation industry. SDKELI LSC2 light curtain is designed for automation field, with small size, compact structure and strong anti-interference ability, and the product meets IEC 61496-2 standards. The automatic light curtain is with reliable quality and very competitive price. It has been used in many factories and has replaced curtains from Omron, Banner, Keyence, etc.

Automatic Light Curtain,Laser Light Curtain,Automation Light Beam Sensor,Automatic Infrared Beam Sensor,Infrared Beam Curttain Sensor,Infrared Beam Sensor

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